PHOTOCOUPLER
PS2521-1,-2,-4,PS2521L-1,-2,-4
LARGE FORWARD INPUT TYPE
HIGH ISOLATION VOLTAGE
MULTI PHOTOCOUPLER SERIES −NEPOC Series−
DESCRIPTION
The PS2521-1, -2, -4 and PS2521L-1, -2, -4 are optically coupled isolators containing a GaAs light emitting diode
and an NPN silicon phototransistor.
The PS2521-1, -2, -4 are in a plastic DIP (Dual In-line Package) and the PS2521L-1, -2, -4 are lead bending type
(Gull-wing) for surface mount.
FEATURES
• Large forward input current (IF = 150 mA)
• High Isolation voltage (BV = 5 000 Vr.m.s.)
• High collector to emitter voltage (VCEO = 80 V)
• High-speed switching (tr = 3
µ
s TYP., tf = 5
µ
s TYP.)
• Ordering number of tape product: PS2521L-1-E3, E4, F3, F4, PS2521L-2-E3, E4
• Safety standards
• UL approved: File No. E72422 (S)
• CSA approved: No. CA 101391
APPLICATIONS
• Exchange equipment
• FAX/MODEM
• LCR adapter
The mark shows major revised points.
Document No. PN10230EJ01V0DS (1st edition)
(Previous No. P11432EJ4V0DS00)
Date Published February 2003 CP(K)
PS2521-1,-2,-4,PS2521L-1,-2,-4
PACKAGE DIMENSIONS (Unit : mm)
DIP Type
PS2521-4
PS2521-1TOP VIEW
TOP VIEW
9.7±0.5
6.5±0.5
3.5±0.3
4.15±0.4
3.3±0.5
2.54
1.25±0.15 0.50±0.10
0.25 M
0 to 15˚
7.62
0.25
+0.1
–0.05
PS2521-2
4.6±0.5
6.5±0.5
3.5±0.3
4.15±0.4
3.3±0.5
2.54
1.25±0.15 0.50±0.10
0.25 M
0 to 15˚
7.62
0.25
+0.1
–0.05
19.8±0.5
6.5±0.5
0 to 15˚
7.62
0.25
+0.1
–0.05
3.5±0.3
4.15±0.4
3.3±0.5
2.54
1.25±0.15 0.50±0.10
0.25 M
TOP VIEW
12
43
12345678
16 15 14 13 12 11 10 9
1234
8765 1, 3. Anode
2, 4. Cathode
5, 7. Emitter
6, 8. Collector
1. Anode
2. Cathode
3. Emitter
4. Collector
1, 3, 5, 7. Anode
2, 4, 6, 8. Cathode
9, 11, 13, 15. Emitter
10, 12, 14, 16. Collector
Data Sheet PN10230EJ01V0DS
2
PS2521-1,-2,-4,PS2521L-1,-2,-4
Lead Bending Type
PS2521L-2
TOP VIEW
PS2521L-1
TOP VIEW
PS2521L-4 TOP VIEW
4.6±0.5
6.5±0.5
0.25 M
3.5±0.3
2.54
1.25±0.15
0.15
0.9±0.25
9.60±0.4
0.25
+0.1
–0.05
0.1
+0.1
–0.05
9.7±0.5
6.5±0.5
2.54
1.25±0.15
0.25 M0.15
3.5±0.3
0.9±0.25
9.60±0.4
0.25
+0.1
–0.05
0.1
+0.1
–0.05
19.8±0.5
6.5±0.5
2.54
1.25±0.15
0.25 M
3.5±0.3
0.15
0.9±0.25
9.60±0.4
0.25
+0.1
–0.05
0.1
+0.1
–0.05
12
43
12345678
16 15 14 13 12 11 10 9
1234
8765 1, 3. Anode
2, 4. Cathode
5, 7. Emitter
6, 8. Collector
1. Anode
2. Cathode
3. Emitter
4. Collector
1, 3, 5, 7. Anode
2, 4, 6, 8. Cathode
9, 11, 13, 15. Emitter
10, 12, 14, 16. Collector
Data Sheet PN10230EJ01V0DS 3
PS2521-1,-2,-4,PS2521L-1,-2,-4
MARKING EXAMPLE
2521
M 003 PS2521-2
M 003
PS2521-1 PS2521-2, -4
Assembly Lot
Week Assembled
Year Assembled
(Last 1 Digit)
In-house Code
CTR Rank Code
No. 1 pin
Mark
Package
New PKG
Standard PKG
Made in Japan Made in Taiwan
No. 1 pin
Mark
M
Week Assembled
Year Assembled
(Last 1 Digit)
In-house Code
CTR Rank Code
Package
New PKG
Standard PKG
Made in Japan Made in Taiwan
003
M003
Blank Blank
Country Assembled
Type Number
Assembly Lot
ORDERING INFORMATION (Solder Contains Lead)
Part Number Package Packing Style Application Part Number*1
PS2521-1 4-pin DIP Magazine case 100 pcs PS2521-1
PS2521L-1
PS2521L-1-E3 Embossed Tape 1 000 pcs/reel
PS2521L-1-E4
PS2521L-1-F3 Embossed Tape 2 000 pcs/reel
PS2521L-1-F4
PS2521-2 8-pin DIP Magazine case 45 pcs PS2521-2
PS2521L-2
PS2521L-2-E3 Embossed Tape 1 000 pcs/reel
PS2521L-2-E4
PS2521-4 16-pin DIP Magazine case 20 pcs PS2521-4
PS2521L-4
*1 For the application of the Safety Standard, following part number should be used.
Data Sheet PN10230EJ01V0DS
4
PS2521-1,-2,-4,PS2521L-1,-2,-4
ORDERING INFORMATION (Pb-Free)
Part Number Package Packing Style Application Part Number*1
PS2521-1-A 4-pin DIP Magazine case 100 pcs PS2521-1
PS2521L-1-A
PS2521L-1-E3-A Embossed Tape 1 000 pcs/reel
PS2521L-1-E4-A
PS2521L-1-F3-A Embossed Tape 2 000 pcs/reel
PS2521L-1-F4-A
PS2521-2-A 8-pin DIP Magazine case 45 pcs PS2521-2
PS2521L-2-A
PS2521L-2-E3-A Embossed Tape 1 000 pcs/reel
PS2521L-2-E4-A
PS2521-4-A 16-pin DIP Magazine case 20 pcs PS2521-4
PS2521L-4-A
*1 For the application of the Safety Standard, following part number should be used.
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C, unless otherwise specified)
Ratings
Parameter Symbol
PS2521-1,
PS2521L-1 PS2521-2, -4,
PS2521L-2, -
4
Unit
Diode Forward Current (DC) IF 150 mA
Reverse Voltage VR 6.0 V
Power Dissipation Derating
∆
PD/°C 2.5 2.0 mW/°C
Power Dissipation PD 250 200 mW/ch
Peak Forward Current *1 IFP 1 A
Transistor Collector to Emitter Voltage VCEO 80 V
Emitter to Collector Voltage VECO 6 V
Collector Current IC 50 mA/ch
Power Dissipation Derating
∆
PC/°C 1.5 1.2 mW/°C
Power Dissipation PC 150 120 mW/ch
Isolation Voltage*2 BV 5 000 Vr.m.s.
Operating Ambient Temperature TA −55 to +100 °C
Storage Temperature Tstg −55 to +150 °C
*1 PW = 100
µ
s, Duty Cycle = 1 %
*2 AC voltage for 1 minute at TA = 25 °C, RH = 60 % between input and output
Data Sheet PN10230EJ01V0DS 5
PS2521-1,-2,-4,PS2521L-1,-2,-4
ELECTRICAL CHARACTERISTICS (TA = 25 °C)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Diode Forward Voltage VF IF = 100 mA 1.3 1.7 V
Reverse Current IR VR = 5 V 5
µ
A
Terminal Capacitance Ct V = 0 V, f = 1.0 MHz 70 pF
Transistor Collector to Emitter
Dark Current ICEO VCE = 80 V, IF = 0 mA 100 nA
Coupled Current Transfer Ratio
(IC/IF) CTR IF = 100 mA, VCE = 3 V 20 80 %
Collector Saturation
Voltage VCE(sat) IF = 100 mA, IC = 4 mA 0.3 V
Isolation Resistance RI-O VI-O = 1.0 kVDC 1011
Ω
Isolation Capacitance CI-O V = 0 V, f = 1.0 MHz 0.6 pF
Rise Time *1 tr VCC = 10 V, IC = 2 mA, RL = 100 Ω 3
µ
s
Fall Time *1 tf 5
*1 Test circuit for switching time
(PW = 100 s,
Duty cycle = 1/10)
µ
Pulse input V
CC
V
OUT
R
L
= 100 Ω50 Ω
I
F
Data Sheet PN10230EJ01V0DS
6
PS2521-1,-2,-4,PS2521L-1,-2,-4
TYPICAL CHARACTERISTICS (TA = 25 °C, unless otherwise specified)
250
100
50
0
200
150
25 75 100 12550
Ambient Temperature T
A
(˚C)
Diode Power Dissipation P
D
(mW)
DIODE POWER DISSIPATION vs.
AMBIENT TEMPERATURE
PS2521-1
PS2521L-1
PS2521-2, -4
PS2521L-2, -4 2.5 mW/˚C
2.0 mW/˚C
150
0
100
50
25 10075 12550
Ambient Temperature T
A
(˚C)
Transistor Power Dissipation P
C
(mW)
TRANSISTOR POWER DISSIPATION vs.
AMBIENT TEMPERATURE
PS2521-1
PS2521L-1
PS2521-2, -4
PS2521L-2, -4
1.5 mW/˚C
1.2 mW/˚C
100
0.1
1
0.01
10
0.4 1.0 1.4 1.60.8 1.20.6
Forward Voltage V
F
(V)
Forward Current I
F
(mA)
FORWARD CURRENT vs.
FORWARD VOLTAGE
+25 ˚C
0 ˚C
–25 ˚C
–55 ˚C
T
A
= +100 ˚C
+75 ˚C
+50 ˚C
70
0
60
20
50
40
30
10
6124 8
Collector to Emitter Voltage V
CE
(V)
Collector Current I
C
(mA)
COLLECTOR CURRENT vs.
COLLECTOR TO EMITTER VOLTAGE
0
I
F
= 50 mA
20 mA
10 mA
5 mA
10 000
0.1
100
1 000
10
1
–60 0 40 80–40 –20 20 60 100
Ambient Temperature T
A
(˚C)
COLLECTOR TO EMITTER DARK
CURRENT vs. AMBIENT TEMPERATURE
Collector to Emitter Dark Current I
CEO
(nA)
V
CE
= 80 V
40 V
24 V
10 V
5 V
50
0.01
10
0.1
1
5
0.5
0.05
0.2 0.6 1.00.0 0.4 0.8
Collector Saturation Voltage V
CE (sat)
(V)
Collector Current I
C
(mA)
COLLECTOR CURRENT vs.
COLLECTOR SATURATION VOLTAGE
5 mA
2 mA
1 mA
I
F
= 50 mA
20 mA
10 mA
Data Sheet PN10230EJ01V0DS 7
PS2521-1,-2,-4,PS2521L-1,-2,-4
Normalized to 1.0
at T
A
= 25 ˚C,
I
F
= 100 mA,
V
CE
= 3 V
1.4
0.6
0.0
0.8
1.0
0.4
0.2
1.2
02550 100
–50 –25 75
Ambient Temperature T
A
(˚C)
NORMALIZED CURRENT TRANSFER
RATIO vs. AMBIENT TEMPERATURE
Normalized Current Transfer Ratio CTR
;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;
V
CC
= 10 V,
I
C
= 2 mA
100
5
1
50
10
50 200 1 k 2 k
100 500
Load Resistance R
L
(Ω)
SWITCHING TIME vs.
LOAD RESISTANCE
Switching Time t ( s)
µ
t
on
t
off
t
f
t
r
250
150
50
0
200
100
0.5 5 50
0.1 1 10 100
Forward Current I
F
(mA)
Current Transfer Ratio CTR (%)
CURRENT TRANSFER RATIO vs.
FORWARD CURRENT
V
CE
= 3 V
Sample A
B
C
–6
0
–3
–9
–12
5 k 500 k
500 100 k100 10 k 50 k1 k
Frequency f (Hz)
Normalized Gain G
V
FREQUENCY RESPONSE
330
F
µ
1 kΩV
CC
= 5 V
I
C
=
2 mA
R
L
50 Ω
R
L
= 100 Ω500 Ω
1.2
1.0
0.0
0.4
0.2
0.8
0.6
10
2
10
3
110
4
10
5
10
6
Time (Hr)
LONG TERM CTR DEGRADATION
CTR (Relative Value)
CTR Test condition
I
F
= 5 mA, V
CE
= 5 V
I
F
= 5 mA
20 mA
40 mA
Remark The graphs indicate nominal characteristics.
Data Sheet PN10230EJ01V0DS
8
PS2521-1,-2,-4,PS2521L-1,-2,-4
TAPING SPECIFICATIONS (Unit : mm)
Tape Direction
Outline and Dimensions (Tape)
Outline and Dimensions (Reel)
PS2521L-1-E3 PS2521L-1-E4
1.55±0.1
2.0±0.1
4.0±0.1
1.75±0.1
4.5 MAX.
4.0±0.1
0.4
5.3±0.1
8.0±0.1
7.5±0.1
16.0±0.3
10.3±0.1
1.5+0.1
–0
φ
Packing: 1 000 pcs/reel
2.0±0.5
R 1.0
13.0±0.2
φ
21.0±0.8
φ
254±2.0
80.0±1.0
2.0±0.5
φ
φ
15.9 to 19.4
Outer edge of
flange
21.5±1.0
17.5±1.0
Data Sheet PN10230EJ01V0DS 9
PS2521-1,-2,-4,PS2521L-1,-2,-4
Tape Direction
PS2521L-1-F3 PS2521L-1-F4
Outline and Dimensions (Tape)
1.55±0.1
2.0±0.1
4.0±0.1
1.75±0.1
4.5 MAX.
4.0±0.1
0.4
5.3±0.1
8.0±0.1
7.5±0.1
16.0±0.3
10.3±0.1
1.5+0.1
–0
Outline and Dimensions (Reel)
Packing: 2 000 pcs/reel
2.0±0.5
R 1.0
13.0±0.2
φ
21.0±0.8
φ
330±2.0
100±1.0
2.0±0.5
φ
φ
15.9 to 19.4
Outer edge of
flange
21.5±1.0
17.5±1.0
Data Sheet PN10230EJ01V0DS
10
PS2521-1,-2,-4,PS2521L-1,-2,-4
Tape Direction
PS2521L-2-E3 PS2521L-2-E4
Outline and Dimensions (Tape)
1.55±0.1
2.0±0.1
4.0±0.1
1.75±0.1
4.5 MAX.
10.4±0.1
12.0±0.1
Outline and Dimensions (Reel)
Packing: 1 000 pcs/reel
330±2.0
100±1.0
2.0±0.5
13.0±0.2
R 1.0 21.0±0.8
2.0±0.5
1.5 +0.1
–0
7.5±0.1
10.3±0.1
16.0±0.3
4.0±0.1
0.3
15.9 to 19.4
Outer edge of
flange
17.5±1.0
21.5±1.0
Data Sheet PN10230EJ01V0DS 11
PS2521-1,-2,-4,PS2521L-1,-2,-4
NOTES ON HANDLING
1. Recommended soldering conditions
(1) Infrared reflow soldering
• Peak reflow temperature 260°C or below (package surface temperature)
• Time of peak reflow temperature 10 seconds or less
• Time of temperature higher than 220°C 60 seconds or less
• Time to preheat temperature from 120 to 180°C 120±30 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.)
120±30 s
(preheating)
220˚C
180˚C
Package Surface Temperature T (˚C)
Time (s)
Recommended Temperature Profile of Infrared Reflow
(heating)
to 10 s
to 60 s
260˚C MAX.
120˚C
(2) Wave soldering
• Temperature 260°C or below (molten solder temperature)
• Time 10 seconds or less
• Preheating conditions 120°C or below (package surface temperature)
• Number of times One (Allowed to be dipped in solder including plastic mold portion.)
• Flux Rosin flux containing small amount of chlorine (The flux with a maximum chlorine
content of 0.2 Wt% is recommended.)
(3) Cautions
• Fluxes
Avoid removing the residual flux with freon-based and chlorine-based cleaning solvent.
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 side may enter the on state, even if the voltage is within the absolute
maximum ratings.
Data Sheet PN10230EJ01V0DS
12
PS2521-1,-2,-4,PS2521L-1,-2,-4
USAGE CAUTIONS
1. Protect against static electricity when handling.
2. Avoid storage at a high temperature and high humidity.
Data Sheet PN10230EJ01V0DS 13
4590 Patrick Henry Drive
Santa Clara, CA 95054-1817
Telephone: (408) 919-2500
Facsimile:
(
408
)
988-0279
Subject: Compliance with EU Directives
CEL certifies, to its knowledge, that semiconductor and laser products detailed below are compliant
with the requirements of European Union (EU) Directive 2002/95/EC Restriction on Use of Hazardous
Substances in electrical and electronic equipment (RoHS) and the requirements of EU Directive
2003/11/EC Restriction on Penta and Octa BDE.
CEL Pb-free products have the same base part number with a suffix added. The suffix –A indicates
that the device is Pb-free. The –AZ suffix is used to designate devices containing Pb which are
exempted from the requirement of RoHS directive (*). In all cases the devices have Pb-free terminals.
All devices with these suffixes meet the requirements of the RoHS directive.
This status is based on CEL’s understanding of the EU Directives and knowledge of the materials that
go into its products as of the date of disclosure of this information.
Restricted Substance
per RoHS Concentration Limit per RoHS
(values are not yet fixed) Concentration contained
in CEL devices
-A -AZ
Lead (Pb) < 1000 PPM Not Detected (*)
Mercury < 1000 PPM Not Detected
Cadmium < 100 PPM Not Detected
Hexavalent Chromium < 1000 PPM Not Detected
PBB < 1000 PPM Not Detected
PBDE < 1000 PPM Not Detected
If you should have any additional questions regarding our devices and compliance to environmental
standards, please do not hesitate to contact your local representative.
Important Information and Disclaimer: Information provided by CEL on its website or in other communications concerting the substance
content of its products represents knowledge and belief as of the date that it is provided. CEL bases its knowledge and belief on information
provided by third parties and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better
integrate information from third parties. CEL has taken and continues to take reasonable steps to provide representative and accurate
information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. CEL and CEL
suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for
release.
In no event shall CEL’s liability arising out of such information exceed the total purchase price of the CEL part(s) at issue sold by CEL to
customer on an annual basis.
See CEL Terms and Conditions for additional clarification of warranties and liability.
