Signal Relays ( 2 A or less )
TX RELAYS TH Types
Product Catalog
2022.10
Signal Relays ( 2 A or less )
TX RELAYS TH types
7.5 A inrush current possible, 2 Form C small size relays
FEATURES
Protective construction：Sealed type
● 2 types of terminal shapes: PC board
terminal and Surface-mount terminal
15
● 7.5 A inrush current possible
7.4
● Compliant with Telcordia standard:
Surge withstand voltage 2,500 V ( between contact and coil )
8.2
7.4
15
● Confort to FCC Part68:
Surge withstand voltage 1,500 V ( between open contacts )
8.4
● Dielectric strength:
2,000 Vrms ( Between contact and coil )
TYPICAL APPLICATIONS
（Unit：mm）
● Air conditioning control ( solenoid )
● Other high capacity control
ORDERING INFORMATION ( PART NO. : Ordering part number for Japanese market )
ATX 2
Terminal shape / Operating function
0： Standard PC board terminal type or
Surface-mount terminal
Single side stable
1： Standard PC board terminal type or
Surface-mount terminal
1 coil latching
2： Standard PC board terminal type or
Surface-mount terminal
2 coil latching (L2)*5
6： Standard PC board terminal type or
Surface-mount terminal
2 coil latching (LT)
TH
Packing style*3
Nil : Tube packing
X : Tape and reel (picked from 1/3/4/5-pin side)
Z : Tape and reel packing (picked from the 8/9/10/12-pin side)
W : Tape and reel packing (picked from the 1/3/4/5-pin side)
With humidity indicator and silica gel in moisture proof bag*4
Y : Tape and reel packing (picked from the 8/9/10/12-pin side)
With humidity indicator and silica gel in moisture proof bag*4
Contact material
TH：Power type
（Ag+Au clad/stationary, movable）
Rated coil voltage (DC)*1, *2
0 : 1.5 V, A : 2.4 V, 1 : 3 V, 2 : 6 V,
4 : 24 V, 5 : 48 V, 6 : 4.5 V, 7 : 9 V,
3 : 12 V,
9:5V
Surface-mount type
Nil：Standard PC board terminal type
SA：SA type
SS：SS type
Contact arrangement
2：2 Form C
*1: 48 V coil type：Single side stable only.
*2: In case of 5 V transistor drive circuit, it is recommended to use 4.5 V type relay.
*3: The“W”and“Y”at the end of the part number only appears on the inner and outer packing.
It does not appear on the relay itself.
*4: Each reel is packed with humidity indicators and silica gel in the moisuture proof pack.
*5: Please contact our sales representative for detailed specifications when using L2 of the operation function.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
ー1ー
Panasonic Industry Co., Ltd. 2022
ASCTB20E 202210
Signal Relays ( 2 A or less ) TX RELAYS TH types
ORDERING INFORMATION ( TYPE NO. : Ordering part number for non Japanese market )
TX 2
TH
Surface-mount type
Nil：Standard PC board terminal type
SA：SA type
SS：SS type
Contact arrangement
2：2 Form C
Contact material
Packing style*3
TH：Power type
Nil : Tube packing
（Ag+Au clad/stationary, movable） X : Tape and reel (picked from 1/3/4/5-pin side)
Z : Tape and reel packing (picked from the 8/9/10/12-pin side)
W : Tape and reel packing (picked from the 1/3/4/5-pin side)
With humidity indicator and silica gel in moisture proof bag*4
Rated coil voltage（DC）*1, *2
Y : Tape and reel packing (picked from the 8/9/10/12-pin side)
1.5, 3, 4.5, 5, 6, 9, 12, 24, 48 V
With humidity indicator and silica gel in moisture proof bag*4
Operating function
Nil：Single side stable
L ：1 coil latching
L2：2 coil latching (SET = 1.6 Pin)*5
LT ：2 coil latching (SET = 1.12 Pin)
*1: 48 V coil type：Single side stable only, 2.4 V type：lathing only.
*2: In case of 5 V transistor drive circuit, it is recommended to use 4.5 V type relay.
*3: The“W”and“Y”at the end of the part number only appears on the inner and outer packing.
It does not appear on the relay itself.
*4: Each reel is packed with humidity indicators and silica gel in the moisuture proof pack.
*5: Please contact our sales representative for detailed specifications when using L2 of the operation function.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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ー2ー
Panasonic Industry Co., Ltd. 2022
ASCTB20E 202210
Signal Relays ( 2 A or less ) TX RELAYS TH types
TYPES
" Type No. " is ordering part number for non Japanese market. " Part No. " is ordering part number for Japanese market.
■ PC board terminal
● Tube packing
Contact
arrangement
2 coil latching ( LT )
Type No.
Part No.
Type No.
1.5 V DC
TX2-1.5V-TH
ATX200TH
TX2-LT-1.5V-TH
ATX260TH
2.4 V DC
−
−
TX2-LT-2.4V-TH
ATX26ATH
3
2 Form C
Single side stable
Rated coil
voltage
V DC
Part No.
TX2-3V-TH
ATX201TH
TX2-LT-3V-TH
ATX261TH
4.5 V DC
TX2-4.5V-TH
ATX206TH
TX2-LT-4.5V-TH
ATX266TH
5
V DC
TX2-5V-TH
ATX209TH
TX2-LT-5V-TH
ATX269TH
6
V DC
TX2-6V-TH
ATX202TH
TX2-LT-6V-TH
ATX262TH
9
V DC
TX2-9V-TH
ATX207TH
TX2-LT-9V-TH
ATX267TH
12
V DC
TX2-12V-TH
ATX203TH
TX2-LT-12V-TH
ATX263TH
24
V DC
TX2-24V-TH
ATX204TH
TX2-LT-24V-TH
ATX264TH
48
V DC
TX2-48V-TH
ATX205TH
−
−
Standard packing
Carton
( 1 Tube packing )
Outer
carton
40 pcs.
1,000 pcs.
■ Surface-mount terminal
● SA Type: Tube packing
Contact
arrangement
Rated coil
voltage
2 coil latching ( LT )
Type No.
Part No.
Type No.
1.5 V DC
TX2SA-1.5V-TH
ATX200THSA
TX2SA-LT-1.5V-TH
ATX260THSA
2.4 V DC
−
−
TX2SA-LT-2.4V-TH
ATX26ATHSA
3
2 Form C
Single side stable
V DC
Part No.
TX2SA-3V-TH
ATX201THSA
TX2SA-LT-3V-TH
ATX261THSA
4.5 V DC
TX2SA-4.5V-TH
ATX206THSA
TX2SA-LT-4.5V-TH
ATX266THSA
5
V DC
TX2SA-5V-TH
ATX209THSA
TX2SA-LT-5V-TH
ATX269THSA
6
V DC
TX2SA-6V-TH
ATX202THSA
TX2SA-LT-6V-TH
ATX262THSA
9
V DC
TX2SA-9V-TH
ATX207THSA
TX2SA-LT-9V-TH
ATX267THSA
12
V DC
TX2SA-12V-TH
ATX203THSA
TX2SA-LT-12V-TH
ATX263THSA
24
V DC
TX2SA-24V-TH
ATX204THSA
TX2SA-LT-24V-TH
ATX264THSA
48
V DC
TX2SA-48V-TH
ATX205THSA
−
−
Standard packing
Carton
( 1 Tube packing )
Outer
carton
40 pcs.
1,000 pcs.
● SA Type: Tape and reel packing: Z
Contact
arrangement
Rated coil
voltage
2 coil latching ( LT )
Type No.
Part No.
Type No.
1.5 V DC
TX2SA-1.5V-TH-Z
ATX200THSAZ
TX2SA-LT-1.5V-TH-Z
ATX260THSAZ
2.4 V DC
−
−
TX2SA-LT-2.4V-TH-Z
ATX26ATHSAZ
3
2 Form C
Single side stable
V DC
Part No.
TX2SA-3V-TH-Z
ATX201THSAZ
TX2SA-LT-3V-TH-Z
ATX261THSAZ
4.5 V DC
TX2SA-4.5V-TH-Z
ATX206THSAZ
TX2SA-LT-4.5V-TH-Z
ATX266THSAZ
5
V DC
TX2SA-5V-TH-Z
ATX209THSAZ
TX2SA-LT-5V-TH-Z
ATX269THSAZ
6
V DC
TX2SA-6V-TH-Z
ATX202THSAZ
TX2SA-LT-6V-TH-Z
ATX262THSAZ
9
V DC
TX2SA-9V-TH-Z
ATX207THSAZ
TX2SA-LT-9V-TH-Z
ATX267THSAZ
12
V DC
TX2SA-12V-TH-Z
ATX203THSAZ
TX2SA-LT-12V-TH-Z
ATX263THSAZ
24
V DC
TX2SA-24V-TH-Z
ATX204THSAZ
TX2SA-LT-24V-TH-Z
ATX264THSAZ
48
V DC
TX2SA-48V-TH-Z
ATX205THSAZ
−
−
Standard packing
Carton
( 1 Reel packing )
Outer
carton
500 pcs.
1,000 pcs.
Notes) 1: For taping packaging X, W, and Y, change " Z " at the end of the part number to " X ", " W ", and " Y ".
2: If you need the PC board terminal, 1 coil latching and 2 coil latching ( L2 ) of surface-mount terminal, please inquire our sales representative for details.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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ー3ー
Panasonic Industry Co., Ltd. 2022
ASCTB20E 202210
Signal Relays ( 2 A or less ) TX RELAYS TH types
RATING
■ Coil data
• Operating characteristics such as " Operate voltage " and " Release voltage " are influenced by mounting conditions or
ambient temperature, etc.
Therefore, please use the relay within ±5 % of rated coil voltage.
• " Initial " means the condition of products at the time of delivery.
● Single side stable
Rated coil
voltage
Operate
voltage*
( at 20 ℃ )
Release
voltage*
( at 20 ℃ )
Rated operating
current
( ±10 %, at 20 ℃ )
Coil resistance
( ±10 %, at 20 ℃ )
1.5 V DC
93.8 mA
16
3
46.7 mA
64.3 Ω
V DC
4.5 V DC
5
V DC
6
V DC
31
Max. 75 % V
of rated coil
voltage
( Initial )
Min. 10 % V
of rated coil
voltage
( Initial )
Rated operating
power
Max. allowable
voltage
( at 20 ℃ )
140 mW
150 % V of
rated coil voltage
270 mW
120 % V of
rated coil voltage
Ω
mA
145
Ω
28.1 mA
178
Ω
23.3 mA
257
Ω
15.5 mA
579
Ω
11.7 mA
1,028
Ω
9
V DC
12
V DC
24
V DC
5.8 mA
4,114
Ω
48
V DC
5.6 mA
8,533
Ω
* square, pulse drive ( JIS C 5442 )
● 2 coil latching
Rated coil
voltage
Set voltage*
( at 20 ℃ )
Reset
voltage*
( at 20 ℃ )
Rated operating
current
( ±10 %, at 20 ℃ )
Coil resistance
( ±10 %, at 20 ℃ )
Set coil
Reset coil
1.5 V DC
93.8 mA
93.8 mA
16
2.4 V DC
58.3 mA
58.3 mA
41.1 Ω
3
46.7 mA
46.7 mA
64.3 Ω
31
31
V DC
4.5 V DC
Max. 75 % V
of rated coil
voltage
( Initial )
Max. 75 % V
of rated coil
voltage
( Initial )
mA
Set coil
Ω
Reset coil
16
Rated operating
power
Set coil
Reset coil
140 mW
140 mW
Max. allowable
voltage
( at 20 ℃ )
Ω
41.1 Ω
64.3 Ω
mA
145
Ω
145
Ω
28.1 mA
28.1 mA
178
Ω
178
Ω
5
V DC
6
V DC
23.3 mA
23.3 mA
257
Ω
257
Ω
9
V DC
15.5 mA
15.5 mA
579
Ω
579
Ω
12
V DC
11.7 mA
11.7 mA
1,028
Ω
1,028
Ω
24
V DC
5.8 mA
5.8 mA
4,114
Ω
4,114
Ω
150 % V of
rated coil voltage
* square, pulse drive ( JIS C 5442 )
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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ー4ー
Panasonic Industry Co., Ltd. 2022
ASCTB20E 202210
Signal Relays ( 2 A or less ) TX RELAYS TH types
■ Specifications
Item
Contact data
Specifications
Contact arrangement
2 Form C
Contact resistance
( initial )
Max. 100 mΩ ( by voltage drop 6 V DC 1 A )
Contact material
Ag ＋ Au plating
Contact rating
( resistive )
2 A 30 V DC, 0.5 A 125 V AC
Max. switching power
( resistive )
60 W ( DC ), 62.5 VA ( AC )
Max. switching voltage
220 V DC, 250 V AC
Max. switching current*1
Inrush current: 7.5 A
Steady state current: 2 A
Min. switching load
( reference value )*2
10 µA 10 mV DC
Insulation resistance ( initial )
Dielectric
strength
(initial)
Min. 1,000 MΩ ( at 500 V DC, Measured portion is the same as the case of dielectric strength. )
Between open contacts
1,000 Vrms for 1 min ( detection current: 10 mA )
Between contact and coil
2,000 Vrms for 1 min ( detection current: 10 mA )
Between contact sets
1,000 Vrms for 1 min ( detection current: 10 mA )
Surge
withstand
voltage
(initial)
Between open contacts
1,500 V 10 × 160 µs
Between contact and coil
2,500 V 2 × 10 µs
Time
characteristics
(initial)
Operate [ Set ] time
Max. 4 ms at rated coil voltage ( at 20 ℃, without bounce )
[ Max. 4 ms ( at 20 ℃, without bounce ) ]
Release [ Reset ] time
Max. 4 ms at rated coil voltage ( at 20 ℃, without bounce, without diode )
[ Max. 4 ms ( at 20 ℃, without bounce ) ]
Functional
750 m/s2 ( half-sine shock pulse: 6 ms, detection time: 10 µs )
Destructive
1,000 m/s2 ( half-sine shock pulse: 6 ms )
Vibration
resistance
Functional
10 to 55 Hz ( at double amplitude of: 3.3 mm, detection time: 10 µs )
Destructive
10 to 55 Hz ( at double amplitude of: 5 mm )
Expected life
Mechanical life
Min. 100 × 106 ope. ( Switching frequency: at 180 times/min )
Conditions
Conditions for usage,
transport and storage*3
Ambient temperature: −40 to ＋85 ℃ ( 1.5 to 24 V DC ), −40 to ＋70℃ ( 48 V DC ),
( Allowable temperature is from −40 to ＋70 ℃ at our standard packing condition. )
Humidity: 5 to 85 % RH ( Avoid icing and condensation )
Shock
resistance
Unit weight
Approx. 2 g
*1: When using at 7.5 A, please refer to " GUIDELINES FOR USAGE, Max. switching current ".
*2: This value is a rough indication of the lower limit at which switching is possible at micro load level.
This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the
actual load.
*3: For ambient temperature, please refer to the " GUIDELINES FOR RELAY USAGE ".
■ Electrical life
Conditions: resistive load, switching frequency at 20 times / minute
Type
Load
Resistive load
2 Form C
Inrush load*
Switching capacity
Number of operations
1
A 30 V DC
Min. 500 x 103 ope.
2
A 30 V DC
Min. 100 x 103 ope.
0.5 A 125 V AC
Min. 100 x 103 ope.
Inrush current
: 7.5 A 30 V AC ( 250 ms time )
Steady state current: 1.5 A 30 V AC ( cosφ＝0.4 )
Min. 200 x 103 ope.
( Switching frequency ON : OFF＝1s : 9s )
* When using at 7.5 A, please refer to " GUIDELINES FOR USAGE, Max. switching current ".
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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Panasonic Industry Co., Ltd. 2022
ASCTB20E 202210
Signal Relays ( 2 A or less ) TX RELAYS TH types
REFERENCE DATA
1. Electrical life test ( 200 × 103 operation is possible )
Condition：30 V AC
Inrush current 7.5 A（execution value）, inrush time 250 ms
Normal current 1.5 A（execution value）,
（inductive load cosφ = 0.4）
Tested sample：TX2SA-24V-TH, 6 pcs.
Switching frequency：ON:OFF = 1s:9s
C
Ambient temperature：25°
Circuit：
Inrush current wave form vs time
NO2
COM1
NO1
30V AC
60Hz
12
Contact current, A
COM2
Contact
Weld
Min 0.5s
−
24VDC
Miss
Contact
after 0.2s
＋
8
4
0
-4
-8
G
-12
Time（ms）, Interval（200ms）
DIMENSIONS ( Unit: mm )
CAD The CAD data of the products with a " CAD " mark can be downloaded from our Website.
■ PC board terminal
● Single side stable
External dimensions
Recommended PC board pattern
( BOTTOM VIEW )
7.4
CAD
Schematic
( BOTTOM VIEW )
( De-energize )
10.16
2.54
4
5
12
10 9
Direction indication
8
＋
1
3
5.08
15
−
0.5
1.15
5.08
3.5
0.65
8.2
8 φ1
2.54
Tolerance：±0.1
0.25
5.08
General tolerance : ±0.3
● 2 coil latching
External dimensions
Recommended PC board pattern
( BOTTOM VIEW )
7.4
CAD
12.7
2.54
4
5
6
12
10 9
Direction indication
8
7
＋
5.08
15
Schematic
( BOTTOM VIEW )
( Reset )
( Operation function LT )
0.5
1.15
5.08
2.54
3.5
0.65
8.2
10 φ1
1
3
−
Tolerance：±0.1
＋
−
( Operation function L2 )
0.25
5.08
1
General tolerance : ±0.3
3 4 5 6
＋
＋
−
−
12
10 9 8 7
Direction indication
Note) If you need the recommended PC board pattern and schematic, please inquire our sales representative for details.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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Panasonic Industry Co., Ltd. 2022
ASCTB20E 202210
Signal Relays ( 2 A or less ) TX RELAYS TH types
■ Surface-mount terminal
CAD
Type
Recommended
PC board pattern
( TOP VIEW )
External dimensions
Schematic
( TOP VIEW )
3.16
5.08
1
2.54
10 9
8
3 4
1
Direction indication
5
−
12
0.5
1.15
5.08
＋
8.4
0.65
8.2
7.24
15
0.25
Single side stable
7.4
( De-energize )
Tolerance：±0.1
5.08
9.4±0.5
2.54
General tolerance : ±0.3
SA
( Reset )
7.4
( Operation function LT )
10 9
8
7
1
3 4
Direction indication
5
6
−
12
−
0.5
1.15
5.08
1
2.54
＋
7.24
8.4
0.65
8.2
3.16
15
0.25
2 coil latching
5.08
( Operation function L2 )
Tolerance：±0.1
5.08
9.4±0.5
2.54
＋
General tolerance : ±0.3
12
10 9 8 7
＋
＋
−
−
1
3 4 5 6
Direction indication
Note) If you need the recommended PC board pattern and schematic for 1 coil latching, please inquire our sales representative for details.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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Panasonic Industry Co., Ltd. 2022
ASCTB20E 202210
Signal Relays ( 2 A or less ) TX RELAYS TH types
PACKING STYLE ( Unit: mm )
■ Tube packing
Orientation（indicates PIN No.1）stripe
1) The relay is packing in a tube with the relay orientation
mark on the left side,as shown in the figure below.
Be sure to maintain relays in the correct orientation
when mounting on PC boards.
2) Conditions for operation, transport and storage: −40 to 70 ℃.
Stopper（gray）
Stopper（green）
■ Taping packaging
1) Tape dimensions
SA Type
16
0.4
2±0.5
φ80±1
4
15.5
2
9.2±0.2
φ380±2
TX relays
TH type
φ21±0.8
0.1
φ1.5 ＋
0
11.5 1.75
24±0.3
Relay polarity bar
（Z type）
2) Dimensions of plastic reel
Tape coming out direction
φ13±0.2
24.4+ 20
2±0.2
3) Conditions for operation, transport and storage: ‒40 to 70 ℃.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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Panasonic Industry Co., Ltd. 2022
ASCTB20E 202210
Signal Relays ( 2 A or less ) TX RELAYS TH types
EXAMPLE OF RECOMMENDED SOLDERING CONDITIONS
■ For cautions for use, please read " Relay Soldering and Cleaning Guidelines " and " SMT Soldering
Guidelines ".
■ PC board terminal
In case of hand soldering, the following conditions should be observed.
The effect on the relay depends on the PC board used. Please verify the actual PC board to be used.
● Automatic soldering ( Flow )
Recommended
conditions
Temperature
Preheating
Soldering
● Hand soldering
Time
Measurement
location
Recommended
conditions
Temperature
Time
Measurement
location
Max. 120 ℃
Within
120 seconds
Solder surface
terminal
Soldering
Max. 350 ℃
Within
3 seconds
Tip
temperature
260 ℃ ±5 ℃
Within
6 seconds
Solder
temperature
■ Surface-mount terminal
In case of automatic soldering ( reflow ), the following conditions should be observed.
● IRS ( infrared reflow soldering method ) heating conditions
Recommend conditions
Number of reflow
1 time
Measuring position
Surface of PC board where relay is mounted.
t4
T3
T2
T1
t1
t2
t3
t 1=60s to 120s
t 2=within 20s
t 3=within 30s
C）
t 4=within 10s（245 to 250°
T1=150 to 180°
C
C and higher
T2=230°
C max
T3=250°
● Mounting cautions
Cautions to observe when mounting temperature
increases in the relay are greatly dependent on the way
different parts are located a PC board and the heating
method of the reflow device. Therefore, please conduct
testing on the actual device beforehand after making sure
the parts soldered on the relay terminals and the top of
the relay case are within the temperature conditions.
Measuring position of temperature profile
Note
Note：7KHVROGHULQJWHPSHUDWXUHSURŏOH
indicates the pad temperature. In
some cases, the ambient
temperature may be greatly
LQFUHDVHG&KHFNIRUWKHVSHFLŏF
mounting condition.
■ Other things to observe
• Exceeding the stipulated conditions when soldering may
affect coaxial switch performance. Be sure to consult us
beforehand.
• Since thermal stress on a relay will depend on the PC
board and process conditions, please be sure to test using
the actual PC board.
• Creep-up, wettability and solder strength will differ
depending on changes in the mounting conditions and
type of solder. Please evaluate based on actual production
conditions.
• Only apply coating after the relay has returned to room
temperature.
SAFETY STANDARDS
Each standard may be updated at any time, so please check our Website for the latest information.
■ UL/C-UL ( Approved )
File No.
Contact rating
Operations
A 30 V DC Resistive
100 × 103
40 ℃
0.5 A 125 V AC Resistive
100 × 103
40 ℃
0.3 A 110 V DC Resistive
100 × 103
40 ℃
2
E43149
■ CSA ( Approved )
Ambient
temperature
CSA standard approved by C-UL.
■ BSI ( Approved )
BSI standard approved by File No. VC659956
( basic insulation ).
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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Panasonic Industry Co., Ltd. 2022
ASCTB20E 202210
Signal Relays ( 2 A or less ) TX RELAYS TH types
GUIDELINES FOR USAGE
■ For cautions for use, please read " GUIDELINES FOR SIGNAL RELAYS USAGE " and " GUIDELINES FOR
RELAY USAGE ".
■ Cautions for usage of TX relay TH type
● Latching
• Use latching when conditions involve continuous
carrying current.
• Regarding the set and reset pulse time, for the purpose
of reliable operation under ambient temperature
fluctuations and different operating conditions, we
recommend setting the coil applied set and reset pulse
time to 10 ms or more at the rated coil voltage.
• The relay is shipped in the reset position. But jolts
during transport or impacts during installation can
change the reset position. It is, therefore, advisable to
build a circuit in which the relay can be initialized ( set
and reset ) just after turning on the power.
● External magnetic field
Since TX relay TH types are highly sensitive polarized
relays, their characteristics will be affected by a strong
external magnetic field. Avoid using the relay under that
condition.
● Precautions for usage of automatic insertion machine
Set the chucking pressure of the pick-up mechanism
by the automatic mounting machine with the pressure
shown in table 1 to maintain the internal function of the
relay.
E
A
D
C
B
Please chuck the portion.
Avoid chucking the center of the
relay. In addition, excessive
chucking pressure to the pinpoint of
the relay should be also avoided.
Table 1: Chucking pressure
A, B and D direction
Max. 9.8 N ( 1 kgf )
C and E direction
Max. 4.9 N ( 500 gf )
● Max. switching current
When using at 7.5 A, connection of NO ( pin #5 and #8 )
and COM ( pin #4 and #9 ) in the circuit is required.
Pin layout and schematic
（BOTTOM VIEW）1 coil latching
1
3
4
5
12
10 9
8
Load
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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ー 10 ー
Panasonic Industry Co., Ltd. 2022
ASCTB20E 202210
GUIDELINES FOR SIGNAL RELAYS USAGE
■ For cautions for use, please read " GUIDELINES FOR RELAY USAGE ".
https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp
PRECAUTIONS FOR COIL INPUT
■ Long term current carrying
■ Coil connection
A circuit that will be carrying a current continuously for
long periods without relay switching operation. ( circuits for
emergency lamps, alarm devices and error inspection that,
for example, revert only during malfunction and output
warnings with form B contacts )
Continuous,long-term current to the coil will facilitate
deterioration of coil insulation and characteristics due to
heating of the coil itself. For circuits such as these, please
use a magnetic-hold type latching relay. If you need to use
a single stable relay, use a sealed type relay that is not easily
affected by ambient conditions and make a failsafe circuit
design that considers the possibility of contact failure or
disconnection.
When connecting coils of polarized relays, please check coil
polarity ( ＋, − ) at the internal connection diagram
( Schematic ).
If any wrong connection is made, it may cause unexpected
malfunction, like abnormal heat, fire and so on, and circuit
do not work.
Avoid impressing voltages to the set coil and reset coil at the
same time.
■ DC Coil operating power
Steady state DC current should be applied to the coil.
The wave form should be rectangular. If it includes ripple,
the ripple factor should be less than 5 %. However,
please check with the actual circuit since the electrical
characteristics may vary.
The rated coil voltage should be applied to the coil and the
set/reset pulse time of latching type relay differs for each
relays, please refer to the relay's individual specifications.
■ Maximum allowable voltage and temperature rise
Proper usage requires that the rated coil voltage be
impressed on the coil.
Note, however, that if a voltage greater than or equal to the
maximum continuous voltage is impressed on the coil, the
coil may burn or its layers short due to the temperature rise.
Furthermore, do not exceed the usable ambient temperature
range listed in the catalog.
● Operate voltage change due to coil temperature rise
( hot start )
In DC relays, after continuous passage of current in the
coil, if the current is turned OFF, then immediately turned
ON again, due to the temperature rise in the coil, the
operate voltage will become somewhat higher. Also,
it will be the same as using it in a higher temperature
atmosphere.
The resistance/temperature relationship for copper wire is
about 0.4 % for 1 ℃, and with this ratio the coil resistance
increases.
That is, in order to operate of the relay, it is necessary
that the voltage be higher than the operate voltage and
the operate voltage rises in accordance with the increase
in the resistance value.
However, for some polarized relays, this rate of change is
considerably smaller.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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ー 11 ー
Panasonic Industry Co., Ltd. 2022
ASCTB414E 202210
GUIDELINES FOR SIGNAL RELAYS USAGE
NOTES
■ Usage, Storage, and Transport Conditions
During usage, storage, or transportation, avoid locations
subject to direct sunlight and maintain normal temperature,
humidity, and pressure conditions.
The allowable specifications for environments suitable for
usage, storage, and transportation are given below.
1) Temperature:
The allowable temperature range differs for each relay,
so refer to the relay's individual specifications.
In addition, when transporting or storing relays while
they are tube packaged, there are cases when the
temperature may differ from the allowable range.
In this situation, be sure to consult the individual
specifications.
2) Humidity: 5 to 85% RH
The humidity range varies with the temperature.
Use within the range indicated in the graph.
( The allowable temperature depends on the relays. )
● Condensation
Condensation occurs when the ambient temperature
drops suddenly from a high temperature and humidity,
or the relay and microwave device is suddenly transferred
from a low ambient temperature to a high temperature
and humidity.
Condensation causes the failures like insulation
deterioration, wire disconnection and rust etc.
Panasonic Industry Co., Ltd. does not guarantee the
failures caused by condensation.
The heat conduction by the equipment may accelerate
the cooling of device itself, and the condensation may
occur.
Please conduct product evaluations in the worst condition
of the actual usage. ( Special attention should be paid
when high temperature heating parts are close to the
device. Also please consider the condensation may occur
inside of the device. )
Humidity (％ RH)
● Icing
Condensation or other moisture may freeze on relays
when the temperature become lower than 0 ℃.
This icing causes the sticking of movable portion, the
operation delay and the contact conduction failure etc.
Panasonic Industry Co., Ltd. does not guarantee the
failures caused by the icing.
The heat conduction by the equipment may accelerate
the cooling of relay itself and the icing may occur.
Please conduct product evaluations in the worst condition
of the actual usage.
85
Allowable range
Avoid icing
when used at
temperatures
lower than 0°C
Avoid condensation when
used at temperatures higher
than 0°C
5
-40
0
85
Ambient temperature (℃)
3) Pressure: 86 to 106 kPa
● Low temperature and low humidity
The plastic becomes brittle if the switch is exposed to
a low temperature, low humidity environment for long
periods of time.
● High temperature and high humidity
Storage for extended periods of time ( including
transportation periods ) at high temperature or high
humidity levels or in atmospheres with organic gases
or sulfide gases may cause a sulfide film or oxide film
to form on the surfaces of the contacts and/or it may
interfere with the functions.
Check out the atmosphere in which the units are to be
stored and transported.
● Package
In terms of the packing format used, make every effort
to keep the effects of moisture, organic gases and sulfide
gases to the absolute minimum.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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ー 12 ー
Panasonic Industry Co., Ltd. 2022
ASCTB414E 202210
GUIDELINES FOR SIGNAL RELAYS USAGE
● Storage requirements
Since the surface-mount terminal type is sensitive to
humidity it is packaged with tightly sealed anti-humidity
packaging. However, when storing, please be careful of
the following.
1) Please use promptly once the anti-humidity pack is
opened. ( within 72 hours, Max. 30 ℃ / 70% RH ).
If left with the pack open, the relay will absorb
moisture which will cause thermal stress when reflow
mounting and thus cause the case to expand. As a
result, the seal may break.
2) If relays will not be used within 72 hours, please store
relays in a humidity controlled desiccator or in an antihumidity bag to which silica gel has been added.
4 ) The following cautionary label is affixed to the antihumidity pack.
* If the relay is to be soldered after it has been exposed to excessive
humidity atmosphere, cracks and leaks can occur.
Be sure to mount the relay under the required mounting conditions.
3) When relays ( which is packaged with humidity
indicator and silica gel ) meeting one of below criteria,
please bake ( dry ) before use.
• When the storage conditions specified in 1) are
exceeded.
• When humidity indicator is in Ⅲ or Ⅳ status according
to judgement standard.
Please check humidity indicator color and decide if
baking is necessary or not.
●: indicate brown, ○: Other than brown ( blueish color )
5％
10％
60％
Bake treatment
necessity judgment
Ⅰ
●
●
●
No need to bake
Ⅱ
○
●
●
No need to bake
Ⅲ
○
○
●
Need to bake
Ⅳ
○
○
○
Need to bake
Spot
5%
10%
● Silicon
When a source of silicone substances ( silicone rubber,
silicone oil,silicone coating materials and silicone filling
materials etc. ) is used around the relay, the silicone gas
( low molecular siloxane etc. ) may be produced
This silicone gas may penetrate into the inside of the
relay. When the relay is kept and used in this condition,
silicone compound may adhere to the relay contacts
which may cause the contact failure.
Do not use any sources of silicone gas around the relay
( Including plastic seal types ).
● NOx Generation
When relay is used in an atmosphere high in humidity
to switch a load which easily produces an arc, the NOx
created by the arc and the water absorbed from outside
the relay combine to produce nitric acid.
This corrodes the internal metal parts and adversely
affects operation.
Avoid use at an ambient humidity of 85 % RH or higher
( at 20 ℃ ).
If use at high humidity is unavoidable, please contact our
sales representative.
60%
Humidity indicator card
＜Baking ( Drying ) conditions＞
• With reel : 45 ℃, 96 hours or more.
• Without reel ( including relay only ): 60 ℃, 35 hours
or more.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
ー 13 ー
Panasonic Industry Co., Ltd. 2022
ASCTB414E 202210
GUIDELINES FOR SIGNAL RELAYS USAGE
OTHERS
■ Cleaning
• Although the environmentally sealed type relay (plastic
sealed type,etc. ) can be cleaned, avoid immersing
the relay into cold liquid ( such as cleaning solvent )
immediately after soldering.
Doing so may deteriorate the sealing performance.
• Surface-mount terminal type relay is sealed type and it
can be cleaned by immersion.
Use pure water or alcohol-based cleaning solvent.
• Cleaning with the boiling method is recommended ( The
temperature of cleaning liquid should be 40℃ or lower ).
Avoid ultrasonic cleaning on relays.
Use of ultrasonic cleaning may cause breaks in the coil
or slight sticking of the contacts due to the ultrasonic
energy.
Please refer to "the latest product specifications"
when designing your product.
•Requests to customers:
https://industrial.panasonic.com/ac/e/salespolicies/
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
ー 14 ー
Panasonic Industry Co., Ltd. 2022
ASCTB414E 202210
■ Global Sales Network Information: industrial.panasonic.com/ac/e/salesnetwork
Electromechanical Control Business Division
1006, Oaza Kadoma, Kadoma-shi, Osaka 571-8506, Japan
industrial.panasonic.com/ac/e/
©Panasonic Industry Co., Ltd. 2022
Specifications are subject to change without notice.
モヴヤヵャビパユチチチビパビビヒパ
2022.10
