Data Sheet
PS2841-4A,PS2841-4B
R08DS0157EJ0101
Rev.1.01
Feb 25, 2020
WORLD’S SMALLEST CLASS, FOUR CHANNELS 12-PIN ULTRA SHRINK SOP PHOTOCOUPLER
DESCRIPTION
The PS2841-4A and PS2841-4B are optically coupled isolators containing GaAs light emitting diodes and
NPN silicon phototransistors.
These products include four channels in a single package for high-density mounting applications.
The PS2841-4A and PS2841-4B are the world's smallest class of photocouplers and realize about 50%
reduction in mounting area compared with the PS280x and PS281x Series.
FEATURES
• Ultra small and thin package
(12-pin ultra shrink SOP, Pin pitch 0.8 mm, 4.4 (L) 5.6 (W) 2.5 (H))
• Common lead PS2841-4A: cathode, collector common
PS2841-4B: anode, collector common
• High current transfer ratio (CTR = 200% TYP. @ IF = 1mA)
• High isolation voltage (BV = 1 500 Vr.m.s.)
• Pb-Free product
• Ordering number of tape product:
PS2841-4A-F3: 2 500 pcs/reel
PS2841-4B-F3: 2 500 pcs/reel
• Safety standards
• UL approved: UL1577, Single protecion
PIN CONNECTIONS
(Top View)
PS2841-4A
12 11 10 9 8 7
1 2 3 4
Channel Anode
1 ch
2
2 ch
3
3 ch
4
APPLICATIONS
• Programmable logic controllers (PLCs)
• Input and output for function automation
• Hybrid IC
4 ch
5
Cathode
1, 6 common
1, 6 common
1, 6 common
1, 6 common
5 6
Emitter
Collector
11
7, 12 common
10
7, 12 common
9
7, 12 common
8
7, 12 common
PIN CONNECTIONS
(Top View)
PS2841-4B
12 11 10 9 8 7
1 2 3 4 5 6
Channel
Anode
Cathode Emitter
Collector
1 ch
1, 6 common
2
11
7, 12 common
2 ch
3
10
1, 6 common
7, 12 common
3 ch
1, 6 common
4
9
7, 12 common
4 ch
1, 6 common
5
8
7, 12 common
R08DS0157EJ0101 Rev.1.01
Feb 25, 2020
Page 1 of 11
PS2841-4A, PS2841-4B
PACKAGE DIMENSIONS (UNIT: mm)
5.6±0.3
12
7
1
6
7.0±0.3
0.1±0.1
0.3
2.5 +– 0.2
0.10
0.15 +– 0.05
4.4
0.8
0.3±0.1
0.5±0.3
0.12
M
PHOTOCOUPLER CONSTRUCTION
Parameter
Unit (MIN.)
Air Distance
4.0 mm
Creepage Distance
4.0 mm
Isolation Thickness
0.4 mm
Weight (12-pin SSOP)：0.14 g (typ.)
MARKING EXAMPLE
R
Company Initial
2841A
NT601
Type Number
Assembly Lot
*1
No. 1 pin
Mark
N T 6 01
Week Assembled
*1 Applicable type numbers
are underlined below
PS2841-4A
PS2841-4B
R08DS0157EJ0101 Rev.1.01
Feb 25, 2020
Year Assembled
(Last 1 Digit)
In-house Code
(T:Pb-Free,Ni/Pd/Au Plating)
Rank Code
Page 2 of 11
PS2841-4A, PS2841-4B
ORDERING INFORMATION
Part Number
PS2841-4A
Order Number
PS2841-4A-AX
Solder Plating
Specification
Pb-Free
Packing Style
Safety Standard
Approval
Application
Part Number *1
20 pcs (Tape 20 pcs cut)
Standard products
PS2841-4A
(UL approved)
PS2841-4A-F3
PS2841-4A-F3-AX
Embossed Tape 2 500 pcs/reel
PS2841-4B
PS2841-4B-AX
20 pcs (Tape 20 pcs cut)
PS2841-4B-F3
PS2841-4B-F3-AX
Embossed Tape 2 500 pcs/reel
Note:
*1.
PS2841-4B
For the application of the Safety Standard, following part number should be used.
ABSOLUTE MAXIMUM RATINGS (TA = 25C, unless otherwise specified)
Parameter
Symbol
Ratings
Unit
Forward Current (DC)
IF
20
mA/ch
Reverse Voltage
VR
6
V
IF /C
0.2
mA /C
IFP
0.5
A/ch
Collector to Emitter Voltage
VCEO
70
V
Emitter to Collector Voltage
VECO
5
V
IC
20
mA/ch
PC/C
0.4
mW/C
PC
40
mW/ch
Isolation Voltage *2
BV
1 500
Vr.m.s.
Operating Ambient Temperature
TA
–40 to +100
C
Storage Temperature
Tstg
–55 to +125
C
Diode
Power Dissipation Derating
Peak Forward Current
Transistor
*1
Collector Current
Power Dissipation Derating
Power Dissipation
Notes:
*1.
*2.
PW = 100 s, Duty Cycle = 1%
AC voltage for 1 minute at TA = 25C, RH = 60% between input and output.
Pins 1-6 shorted together, 7-12 shorted together.
R08DS0157EJ0101 Rev.1.01
Feb 25, 2020
Page 3 of 11
PS2841-4A, PS2841-4B
ELECTRICAL CHARACTERISTICS (TA = 25C)
Diode
Parameter
Symbol
Conditions
Forward Voltage
VF
IF = 1 mA
Reverse Current
IR
VR = 5 V
Terminal Capacitance
Ct
V = 0 V, f = 1 MHz
Collector to Emitter Current
ICEO
IF = 0 mA, VCE = 24 V
Coupled
Current Transfer Ratio (IC/IF)
CTR
IF = 1 mA, VCE = 0.4 V
IL
IF = 5 mA, VCE = 24 V
VCE (sat)
IF = 1 mA, IC = 0.2 mA
Optical Leakage Current
TYP.
MAX.
Unit
0.9
1.1
1.2
V
10
A
15
Transistor
*1
MIN.
100
pF
200
100
nA
400
%
100
nA
0.3
V
(1 to 2-ch, 2 to 3-ch, 3 to 4-ch)
Collector Saturation Voltage
Isolation Resistance
RI-O
VI-O = 1 kVDC
Isolation Capacitance
0.13
1011
CI-O
V = 0 V, f = 1 MHz
0.4
pF
Turn-on Time
*2
ton
VCC = 5 V, IF = 1 mA, RL = 5 k
20
s
Turn-off Time
*2
toff
110
Notes: *1. The optically induced leakage current is current which can be measured at transistor if LED = ”ON” and
LED = ”OFF”.
LED of channel 1 is switched to ”ON”.
At Tr-output of channel 2 a voltage is applied and one can measure a current between emitter and collector.
This is leakage current (at IF = 5 mA, VCEO = 24 V).
Measurement circuits for optical leakage current
E.g. : In the case of 1 to 2-ch (PS2841-4A)
IF
*2.
1
12
2
11
3
10
A
4
9
IL
5
8
6
7
Test circuit for switching time
VCC
Pulse Input
Input
ton
td
PW = 100 μs
Duty cycle = 1/10
toff
ts
90%
IF
In monitor
VOUT
50 Ω
RL = 5 kΩ
Output
R08DS0157EJ0101 Rev.1.01
Feb 25, 2020
10%
tr
tf
Page 4 of 11
PS2841-4A, PS2841-4B
TYPICAL CHARACTERISTICS (TA = 25C, unless otherwise specified)
TRANSISTOR POWER DISSIPATION
vs. AMBIENT TEMPERATURE
MAXIMUM FORWARD CURRENT vs.
AMBIENT TEMPERATURE
70
30
20
0.2 mA/℃
10
0
25
50
75
100
Transistor Power Dissipation PC (mW)
Maximum Forward Current IF (mA)
40
60
50
40
0.4 mA/℃
30
20
10
0
25
Ambient Temperature T A (℃)
50
75
100
125
Ambient Temperature T A (℃)
FORWARD CURRENT vs.
FORWARD VOLTAGE
COLLECTOR CURRENT vs.
COLLECTOR TO EMITTER VOLTAGE
20
100
10
Collector Current I C (mA)
Forward Current IF (mA)
18
TA = +100 ℃
+60 ℃
+25 ℃
1
0℃
–25 ℃
–40 ℃
0.1
16 IF = 10 mA
14
12
10
5 mA
8
6
2 mA
4
1 mA
2
0.01
0.0
0.5
1.0
1.5
0
2.0
Forward Voltage V F (V)
1 000
Collector Current I C (mA)
Collector to Emitter Dark Current I CEO (nA)
100
VCE = 24 V
70 V
100
10
25
50
3
4
5
6
7
8
9
10
COLLECTOR CURRENT vs.
COLLECTOR SATURATION VOLTAGE
10 000
0
2
Collector to Emitter Voltage V CE (V)
COLLECTOR TO EMITTER DARK
CURRENT vs. AMBIENT TEMPERATURE
1
–25
0.5 mA
1
75
100
Ambient Temperature T A (℃)
CTR = 160%
10 mA
5 mA
10
2 mA
1 mA
1
0.1
0.0
IF = 0.5 mA
0.2
0.4
0.6
0.8
1.0
Collector Saturation Voltage V CE(sat) (V)
Remark The graphs indicate nominal characteristics.
R08DS0157EJ0101 Rev.1.01
Feb 25, 2020
Page 5 of 11
PS2841-4A, PS2841-4B
CURRENT TRANSFER RATIO vs.
FORWARD CURRENT
1.6
400
1.4
350
VCE = 0.4 V
Current Transfer Ratio CTR (%)
Normalized Current Transfer Ratio CTR
NORMALIZED CURRENT TRANSFER
RATIO vs. AMBIENT TEMPERATURE
1.2
1.0
0.8
0.6
0.4
0.2
Normalized to 1.0
at TA = 25°C,
IF = 1 mA, VCE = 0.4 V
0.0
–40
–25
0
25
50
75
300
250
200
150
100
50
0
0.01
100
Ambient Temperature T A (℃)
Switching Time t (μs)
Switching Time t (μs)
tf
tr
td
ts
1
50 100
500 1 k
tr
10
45
VCE = 70 V
40 V
24 V
Optical Leakage Current I L (nA)
Optical Leakage Current I L (nA)
10 k
50 k
100 k
OPTICAL LEAKAGE CURRENT
vs. AMBIENT TEMPERATURE
50
10 V
5V
10
15
5k
Load Resistance R L (Ω)
1 000
10
td
1
1k
5 k 10 k
tf
ts
OPTICAL LEAKAGE CURRENT
vs. FORWARD CURRENT
5
IF = 1 mA,
VCC = 5 V,
CTR = 160%
100
Load Resistance R L (Ω)
1
0
100
10 000
IC = 2 mA,
VCC = 5 V,
CTR = 160%
10
100
10
SWITCHING TIME vs.
LOAD RESISTANCE
1 000
0.1
10
1
Forward Current IF (mA)
SWITCHING TIME vs.
LOAD RESISTANCE
100
0.1
20
25
Forward Current I F (mA)
VCE = 24 V
40
35
30
25
IF = 5 mA
20
15
10
5
0
–30 –20–10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature T A (℃)
Remark The graphs indicate nominal characteristics.
R08DS0157EJ0101 Rev.1.01
Feb 25, 2020
Page 6 of 11
PS2841-4A, PS2841-4B
TAPING SPECIFICATIONS (UNIT: mm)
Tape Direction
PS2841-4A-F3
PS2841-4B-F3
Direction of feed
1.55± 0.05
7.4± 0.1
5.5± 0.05
1.5 +0.1
–0
12.0± 0.2
2.0± 0.05
4.0± 0.1
1.75± 0.1
Outline and Dimensions (Tape)
3.05 MAX.
2.85± 0.1
6.0± 0.1
8.0± 0.1
0.3
Outline and Dimensions (Reel)
2.0±0.5
2.0±0.5
100±1.0
R 1.0
330±2.0
13.0±0.2
21.0±0.8
13.5±1.0
17.5±1.0
Packing: 2 500 pcs/reel
R08DS0157EJ0101 Rev.1.01
Feb 25, 2020
Page 7 of 11
PS2841-4A, PS2841-4B
RECOMMENDED MOUNT PAD DIMENSIONS (UNIT: mm)
0.8
0.5
1.45
6.25
Remark All dimensions in this figure must be evaluated before use.
R08DS0157EJ0101 Rev.1.01
Feb 25, 2020
Page 8 of 11
PS2841-4A, PS2841-4B
NOTES ON HANDLING
1. Recommended soldering conditions
(1) Infrared reflow soldering
• Peak reflow temperature
260C or below (package surface temperature)
• Time of peak reflow temperature
10 seconds or less
• Time of temperature higher than 220C
60 seconds or less
• Time to preheat temperature from 120 to 180C 12030 s
• Number of reflows
Three
• Flux
Rosin flux containing small amount of chlorine
(The flux with a maximum chlorine content of
0.2 Wt% is recommended.)
Package Surface Temperature T (C)
Recommended Temperature Profile of Infrared Reflow
(heating)
to 10 s
260C MAX.
220C
to 60 s
180C
120C
120±30 s
(preheating)
Time (s)
(2) Wave soldering
• Temperature
• Time
• Preheating conditions
• Number of times
• Flux
260C or below (molten solder temperature)
10 seconds or less
120C or below (package surface temperature)
One (Allowed to be dipped in solder including plastic mold portion.)
Rosin flux containing small amount of chlorine (The flux with a maximum
chlorine content of 0.2 Wt% is recommended.)
(3) Soldering by Soldering Iron
• Peak Temperature (lead part temperature) 350C or below
• Time (each pins)
3 seconds or less
• Flux
Rosin flux containing small amount of chlorine
(The flux with a maximum chlorine content of 0.2 Wt% is recommended.)
(a) Soldering of leads should be made at the point 1.5 to 2.0 mm from the root of the lead
(b) Please be sure that the temperature of the package would not be heated over 100C
(4) Cautions
• Flux Cleaning
Avoid cleaning with Freon based or halogen-based (chlorinated etc.) solvents.
• Do not use fixing agents or coatings containing halogen-based substances.
R08DS0157EJ0101 Rev.1.01
Feb 25, 2020
Page 9 of 11
PS2841-4A, PS2841-4B
2. Cautions regarding noise
Be aware that when voltage is applied suddenly between the photocoupler’s input and output or between
collector-emitters at startup, the output transistor may enter the on state, even if the voltage is within the
absolute maximum ratings.
3. Measurement conditions of current transfer ratios (CTR), which differ according to photocoupler
Check the setting values before use, since the forward current conditions at CTR measurement differ
according to product.
When using products other than at the specified forward current, the characteristics curves may differ
from the standard curves due to CTR value variations or the like. Therefore, check the characteristics
under the actual operating conditions and thoroughly take variations or the like into consideration before
use.
USAGE CAUTIONS
1.
2.
3.
4.
Protect against static electricity when handling.
Avoid storage at a high temperature and high humidity.
Avoid cleaning with Freon based or halogen-based (chlorinated etc.) solvents.
Do not use fixing agents or coatings containing halogen-based substances.
R08DS0157EJ0101 Rev.1.01
Feb 25, 2020
Page 10 of 11
PS2841-4A, PS2841-4B
Caution
GaAs Products
This product uses gallium arsenide (GaAs).
GaAs vapor and powder are hazardous to human health if inhaled or ingested, so please observe
the following points.
• Follow related laws and ordinances when disposing of the product. If there are no applicable laws
and/or ordinances, dispose of the product as recommended below.
1. Commission a disposal company able to (with a license to) collect, transport and dispose of
materials that contain arsenic and other such industrial waste materials.
2. Exclude the product from general industrial waste and household garbage, and ensure that the
product is controlled (as industrial waste subject to special control) up until final disposal.
• Do not burn, destroy, cut, crush, or chemically dissolve the product.
• Do not lick the product or in any way allow it to enter the mouth.
All trademarks and registered trademarks are the property of their respective owners.
R08DS0157EJ0101 Rev.1.01
Feb 25, 2020
Page 11 of 11
Notice
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