HFK A/H FK A- T
AUTOMOTIVE RELAY
Features
● 25A motor locked load
● Extremely small relay
● Change-over contact version
Single
● Single and twin version available
Twin
● Coil wire insulation class H (180 )
Typical Applications
● HFKA-T (reflow soldering version) available
Central door lock, Power doors and windows,
Indicator lamp control, Seat adjustment, Sunroof motor control,
Mirror adjustment, Wiper control
● RoHS & ELV compliant
CHARACTERISTICS
1Z (Single), 2Z (Twin)
Contact arrangement
Typ.: 1.2ms
Max.: 10ms
HFKA: -40 to 85
HFKA-T: -40 to 125
10Hz to 500Hz 49m/s2
98m/s2
PCB 7)
Plastic sealed
Flux proofed
Single relay: Approx. 4g
Twin relay: Approx. 8g
Release time 5)
1H (Single), 2H (Twin)
Typ.: 50mV (at 10A)
Voltage drop (initial) 1)
Typ.: 250mV (at 10A)
33.8A 10min/25A long-term (@23 )
Max. continuous current
2)
31A 10min (@ 85 )
HFKA-T:29A 10min (@ 125 )
30A
Max. switching current
Max. switching voltage
3)
16VDC
1A 6VDC
Min. contact load
See "CONTACT DATA"
Electrical endurance
1 x 107 OPS (300OPS/min)
Mechanical endurance
100M (at 500VDC)
Initial insulation resistance
between contacts: 500VAC
Dielectric strength 4)
between coil & contacts: 500VAC
Typ.: 2.5ms (at nomi. vol.)
Operate time
Max.: 10ms (at nomi. vol.)
Ambient temperature
Vibration resistance 6)
Shock resistance 6)
Termination
Construction
Unit weight
1)Initial value,Equivalent to the max. initial contact resistance is 100m
(at 1A 6VDC).
2) Test under the following conditions:
a. The relay is mounted on the PCB, the coil is applied with 100% rated
voltage;
b. The PCB board is a double layer board. The thickness of the copper
foil is 4 oz (140 µm),the width of each copper foil is 3.76×(1±5%)mm,
the length of the copper foil is 50 mm±1 mm, and the Tg value of
the PCB board is 150 °C.
c. Not suitable for double relay adding load simultaneously.
3) See "Load limit curve" for details.
4) 1min, leakage current less than 1mA.
5) The value is measured when voltage drops suddenly from nominal
voltage to 0 VDC and coil is not paralleled with suppression circuit.
6) When non-energized,close time of NO contacts shall not exceed 10µs,
When energized, opening time of closed NO contacts shall not exceed
10µs.
7) Since it is an environmental friendly product, please select lead-free
solder when welding. The recommended soldering temperature and
time is (260 3) , (5 0.3)s.
CONTACT DATA 3)
Load
voltage
at 23
Load current A
Load type
2)
Make
Motor
13.5VDC
Simulate
window
operation
Simulate
motor
free
operation
1Z, 2Z
1)
Break
Make
1)
NO
NC
25
---
25
---
25
---
On/Off ratio
On
s
Off
s
0.5
9.5
Electrical
endurance
OPS
5
1 × 10
Contact
material
AgSnO2
RL-1
0.2
N.O.
Stable
10
---
2.3
Break
25
---
0.5
27
---
0.02
Make
1)
Transient
17
---
0.03
Break
8
---
0.15
4
5
1 × 10
AgSnO2
N.C.
M
N.O.
N.C.
RL-2
1.8
5
1 × 10
AgSnO2
HONGFA RELAY
ISO9001, ISO/TS16949 , ISO14001, OHSAS18001, IECQ QC 080000 CERTIFIED
29
Load wiring
diagram
2018 Rev. 1.00
1) Corresponds to the peak inrush current on initial actuation (motor).
2) When applied in flasher, a special silver alloy (AgSnO 2) contact material should be used and the customer special code should be (170) as a
suffix. Please heed the anode and cathode's request when wired, common terminal should connect with anode.
3) When the load requirement is different from content of the table above, please contact Hongfa for relay application support.
COIL DATA
Nominal
Pick-up voltage
VDC
voltage
23
VDC
85
125
Coil resistance
x(1 10%)
Drop-out voltage
VDC
23
85
125
23
85
Power consumption
W
125
23
Standard
12
≤7.2 ≤9.0 ≤10.2 ≥1.0 ≥1.2
≥1.4
225
280.8 316.8
0.64
Low pick-up voltage
12
≤6.5 ≤8.2 ≤9.2 ≥1.0 ≥1.2
≥1.4
180
224.6 253.4
0.8
1) Max. allowable overdrive voltage is stated with no load applied.
ORDERING INFORMATION
HF KA /
Type
01 2 -1 Z
S
P
T
C (XXX)
HFKA: Standard
HFKA-T: Reflow soldering version/
High-temperature version
Coil voltage
012: 12VDC
Contact arrangement
1H:
2H:
1Z:
2Z:
1 Form A (Single version)
2 Form A (Twin version)
1 Form C (Single version)
2 Form C (Twin version)
1)
Construction
S: Plastic sealed
Coil power
P: Low pick-up voltage
Contact material
T: AgSnO2
Packing style
C: Tape and reel packing
Special code2)
XXX: Customer special requirement
Nil: Flux proofed
Nil: Standard
Nil: Tube packing
Nil: Standard
Notes: 1) Contact is recommended for suitable condition and specifications if water cleaning or surface process is involved in assembling relays
on PCB.
2) The customer special requirement express as special code after evaluating by Hongfa. e.g. (170) stands for flasher load.
OUTLINE DIMENSIONS, WIRING DIAGRAM AND PC BOARD LAYOUT
Unit: mm
Outline Dimensions
HFKA (Standard)
1Z: 1 Form C (Single version)
14
0.3
2x(0.3 +- 00 .. 13 )x(0.5 +- 00 .. 13 )
7.2
2Z: 2 Form C (Twin version)
0.3
3x(1.2+- 00 .. 13 )x(0.3 +- 00 .. 13 )
14
15.4
0.3
+0.3
4x(0.3 +- 00 .. 13 )x(0.5 - 0 . 1 )
0.3
6x(1.2+- 00 .. 13 )x(0.3 +- 00 .. 31)
30
OUTLINE DIMENSIONS, WIRING DIAGRAM AND PC BOARD LAYOUT
Unit: mm
Outline Dimensions
1H: 1 Form A (Single version)
14
0.3
7.2
0.3
2x(1.2 +- 00 .. 13 )x(0.3 +- 00 .. 13 )
2x(0.3+- 00 .. 13 )x(0.5 +- 00 .. 13 )
2H: 2 Form A (Twin version)
14
15.4
0.3
+0.3
4x(0.3 +- 00 .. 13 )x(0.5 - 0 . 1 )
0.3
4x(1.2+- 00 .. 13 )x(0.3 +- 00 .. 31)
Remark: * The additional tin top is max. 1mm.
HFKA-T (Reflow soldering version / High-temperature version)
1Z: 1 Form C (Single version)
14
0.3
7.2
0.3
3x(1.2+-00 .. 13 )x(0.3 +- 00 .. 13 )
2x(0.3 +- 00 .. 13 )x(0.5 +-00 .. 13 )
2Z: 2 Form C (Twin version)
14
+0.3
4x(0.3 +- 00 .. 13 )x(0.5 - 0 . 1 )
1H: 1 Form A (Single version)
14
0.3
2x(0.3+- 00 .. 13 )x(0.5 +- 00 .. 13 )
7.2
0.3
2x(1.2+- 00 .. 13 )x(0.3 +- 00 .. 13 )
Remark: * The additional tin top is max. 1mm.
31
15.4
0.3
0.3
6x(1.2 +- 00 .. 13 )x(0.3 +- 00 .. 31)
2H: 2 Form A (Twin version)
14
15.4
0.3
+0.3
4x(0.3 +- 00 .. 13 )x(0.5 - 0 . 1 )
0.3
4x(1.2+- 00 .. 13 )x(0.3 +- 00 .. 31)
OUTLINE DIMENSIONS, WIRING DIAGRAM AND PC BOARD LAYOUT
Unit: mm
PCB Layout (Bottom view)
1Z: 1 Form C (Single version)
4
8.4
0.1
2Z: 2 Form C (Twin version)
0.1
4
8.4
0.1
0.1
3 × 1.6 +0.2
0
0.8
6 × 1.6 +0.2
0
2 × 1 +0.2
0
0.3
4 × 1 +0.2
0
(0.8±0.3)
1H: 1 Form A (Single version)
4
8.4
0.1
2H: 2 Form A (Twin version)
0.1
4
0.1
8.4
0.1
2 × 1.6 +0.2
0
0.8
0.3
4 × 1.6 +0.2
0
2 × 1 +0.2
0
4 × 1 +0.2
0
(0.8±0.3)
Wiring Diagram (Bottom view)
1Z: 1 Form C (Single version)
2Z: 2 Form C (Twin version)
1H: 1 Form A (Single version)
2H: 2 Form A (Twin version)
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TAPE AND REEL PACKING
Unit: mm
Direction of Relay Insertion
I
Reel
4:1
Cover tape
Embossed
carrier tape
I
adhesive tape
Cover tape
adhesive tape
Feed direction
during customer usage
at least 2 empty
relay positions
at least 3 empty
relay positions
Cover tape
Reel Dimensions
2
3-R1
32.4
38.4
33
0.6
1
TAPE AND REEL PACKING
Unit: mm
Tape Dimensions
4
2
L*
Remark: * For Single relay, L is 20mm; for Twin relay, L is 28mm.
CHARACTERISTIC CURVES
1. Coil operating voltage range
225
coil resistance
24
22
Umax.
1) There should be no contact load applied when maximum
continuous operation voltage is applied on coil.
2) The operating voltage is connected with coil preenergized time and voltage. After pre-energized, the
operating voltage will increase.
3) The maximum allowable coil temperature is 180 . For
the coil temperature rise which is measured by
resistance is average value, we recommend the coil
temperature should be below 170 under the different
application ambient, different coil voltage and different
load etc.
4) If the actual operating coil voltage is out of the specified
range, please contact Hongfa for further details.
20
18
16
14
Upick-up (after pre-energization under Unomi.)
12
10
8
6
Upick-up (initial)
4
2
0
-60
-40
-20
0
20
40
60
80
100
Ambient temperature ( )
180
coil resistance
24
22
1) There should be no contact load applied when maximum
continuous operation voltage is applied on coil.
2) The operating voltage is connected with coil preenergized time and voltage. After pre-energized, the
operating voltage will increase.
3) The maximum allowable coil temperature is 180 . For
the coil temperature rise which is measured by
resistance is average value, we recommend the coil
temperature should be below 170 under the different
application ambient, different coil voltage and different
load etc.
4) If the actual operating coil voltage is out of the specified
range, please contact Hongfa for further details.
Umax.
20
18
16
14
12
Upick-up (after pre-energization under Unomi.)
10
8
6
Upick-up (initial)
4
2
0
-60
-40
-20
0
20
40
60
80
100
Ambient temperature ( )
34
CHARACTERISTIC CURVES
2. Load limit curve (at 23 )
18
16
14
12
10
1) This chart takes NO contact, resistive load as example.
2) The load and electrical endurance tests are made
according to “CONTACT DATA” parameters’ table.
If actual load voltage, current or operate frequency
is different from “CONTACT DATA” table, please
arrange corresponding tests for confirmation.
8
6
4
2
0
0
5
10
20
25
30
35
Switching current (A)
3. Reflow soldering, temperature on PCB board.
(Recommended soldering temperature, only for reflow soldering version)
Temperature
( )
Soldering
max.250
230
180
150
Preheating
30max
120max
35
Time(s)
CHARACTERISTIC CURVES
4. Coil temperature rise
(1) Coil
temperature rise(85℃)
Experiment:HFKA/012-1ZSPT
(2) Coil
temperature rise(23℃)
Experiment:HFKA/012-1ZSPT
Amount:three
Amount:three
Carrying current:0A,15A,25A
Carrying current:0A,15A,25A
Ambient temp:23℃
Ambient temp:85℃
160
160
25A
140
140
120
120
15A
15A
100
100
10A
0A
80
80
60
60
0A
40
40
20
20
0
0
10
12
14
16
18
Time (min)
10
12
14
16
18
Time (min)
Disclaimer
The specification is for reference only. See to "Terminology and Guidelines" for more information. Specifications subject to change without notice.
In case there is specific criterion (such as mission profile, technical specification, PPAP etc.) checked and agreed by and between customer and Hongfa,
this specific criterion should be taken as standard regarding any requirement on Hongfa product.
We could not evaluate all the performance and all the parameters for every possible application. Thus the user should be in a right position to choose
the suitable product for their own application. If there is any query, please contact Hongfa for the technical service. However, it is the user’s responsibility
to determine which product should be used only.
© Xiamen Hongfa Electroacoustic Co., Ltd. All rights of Hongfa are reserved.
35