FEATURES
• HIGH ISOLATION VOLTAGE:
(BV = 5 000 Vr.m.s.)
• ORDERING NUMBER OF TAPING PRODUCT:
PS2561AL-1-E3, E4, F3, F4, PS2561AL2-1-E3, E4,
PS2561AL-1-1-E3,E4
• UL, BSI, CSA, NEMKO, DEMKO, SEMKO, FIMKO,
APPROVED
• VDE0884 APPROVED (OPTION)
PS2561A-1
PS2561AL-1
PS2561AL1-1
PS2561AL2-1
HIGH ISOLATION VOLTAGE
SINGLE TRANSISTOR TYPE
MULTI PHOTOCOUPLER SERIES
California Eastern Laboratories
DESCRIPTION
NEC’s PS2561A-1 is an optically coupled isolator containing a
GaAs light emitting diode and an NPN silicon phototransistor.
The PS2561A-1 is in a plastic DIP (Dual In-line Package) and
the PS2561AL-1 is lead bending type (Gull-wing) for surface
mount.
The PS2561AL1-1 is lead bending L1 type for wide creepage
through hole mounting and the PS2561AL2-1 is lead bending L2
type for wide creepage surface mount. (Gull-wing).
APPLICATIONS
• Power supply
• Telephone/FAX.
• FA/OA equipment
• Programmable logic controller
PACKAGE DIMENSIONS (UNIT : mm)
DIP Type Long Creepage Distance
Lead Bending Type Long Creepage Distance (Gull-Wing)
PS2561A-1,PS2561AL-1, PS2561AL1-1,PS2561AL2-1
1. Anode
2. Cathode
3. Emitter
4. Collector
PS2561A-1 TOP VIEW
3.5±0.3
4.15±0.43.2±0.4
2.54
1.25±0.15 0.50±0.10
0.25 M
4.6±0.35
6.5±0.5
0 to 15˚
7.62
0.25
+0.1
–0.05
12
43
PS2561AL1-1
0 to 15˚
0.25+0.1
–0.05
10.16
2.54
0.25 M
0.50±0.1
1.25±0.15
3.85
±0.4
3.15
±0.35
3.5
±0.3 6.5±0.5
4.6±0.35
1. Anode
2. Cathode
3. Emitter
4. Collector
TOP VIEW
12
43
PS2561AL-1
TOP VIEW
0.25
M
4.6±0.35
6.5±0.5
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
12
43
1. Anode
2. Cathode
3. Emitter
4. Collector
PS2561AL2-1
0.25M
0.25
2.54
1.25±0.15
3.5±0.3 6.5±0.5
4.6±0.35
11.8+0.2
–0.5
0.25+0.1 
–0.05
0.25±0.2
0.9±0.25
10.16
TOP VIEW
12
43
1. Anode
2. Cathode
3. Emitter
4. Collector
Lead Bend for Through Hole Mount
Lead Bend for Surface Mountfor Surface Mount
PS2561A-1,PS2561AL-1, PS2561AL1-1,PS2561AL2-1
2561A
N 301
E
Assembly Lot
Week Assembled
Year Assembled
(Last 1 Digit)
In-house Code
CTR Rank Code
No. 1 pin
Mark
Package
New PKG
Made in Japan Made in Taiwan
N301
H
MARKING EXAMPLE
ORDERING INFORMATION
Part Number Package Packing Style Safety Standard
Approval Appliction Part
Number *1
PS2561A-1 4-pin DIP Magazine case 100 pcs Standard products
(UL, CSA, BSI,
NEMKO, SEMKO,
DEMKO, FIMKO
approved)
PS2561A-1
PS2561AL-1
PS2561AL1-1
PS2561AL2-1
PS2561AL-1-E3 Embossed Tape 1 000 pcs/reel
PS2561AL-1-E4
PS2561AL2-1-E3 Embossed Tape 1 000 pcs/reel
PS2561AL2-1-E4
PS2561AL-1-F3 Embossed Tape 2 000 pcs/reel
PS2561AL-1-F4
PS2561A-1-V Magazine case 100 pcs VDE0884 approved
products (option)
PS2561AL-1-V
PS2561AL1-1-V
PS2561AL2-1-V
PS2561AL-1-V-E3 Embossed Tape 1 000 pcs/reel
PS2561AL-1-V-E4
PS2561AL2-1-V-E3 Embossed Tape 1 000 pcs/reel
PS2561AL2-1-V-E4
PS2561AL-1-V-F3 Embossed Tape 2 000 pcs/reel
PS2561AL-1-V-F4
*1 For the application of the Safety Standard, following part number should be used.
PS2561A-1,PS2561AL-1, PS2561AL1-1,PS2561AL2-1
ABSOLUTE MAXIMUM RATINGS (TA = 25°C, unless otherwise specifi ed)
Parameter Symbol Ratings Unit
Diode Reverse Voltage VR6V
Forward Current (DC) IF30 mA
Power Dissipation Derating PD/°C 1.5 mW/°C
Power Dissipation PD150 mW
Peak Forward Current*1 IFP 0.5 A
Transistor Collector to Emitter Voltage VCEO 70 V
Emitter to Collector Voltage VECO 5V
Collector Current IC30 mA
Power Dissipation Delay PC/°C 1.5 mW/°C
Power Dissipation PC150 mW
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 s, Duty Cycle = 1%
*2 AC voltage for 1 minute at TA = 25°C, RH = 60% between input and output
PS2561A-1,PS2561AL-1, PS2561AL1-1,PS2561AL2-1
ELECTRICAL CHARACTERISTICS (TA = 25°C)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Diode Forward Voltage VFIF = 10 mA 1.2 1.4 V
Reverse Current IRVR = 5 V 5 A
Terminal Capacitance CtV = 0 V, f = 1.0 MHz 10 pF
Transistor Collector to Emitter Dark
Current ICEO VCE = 70 V, IF = 0 mA 100 nA
Coupled Current T ransfer Ratio
(IC/IF)*1 CTR IF = 5 mA, VCE = 5 V 50 300 %
Collector Saturation
Voltage VCE (sat) IF = 10 mA, IC = 2 mA 0.13 0.3 V
Isolation Resistance RI-O VI-O = 1.0 kVDC 1011
Isolation Capacitance CI-O V = 0 V, f = 1.0 MHz 0.4 pF
Rise T ime*2 trVCC = 10 V, IC = 2 mA, RL = 100 5s
Fall T ime*2 tf7
*1 CTR rank
N : 50 to 300 (%)
H : 80 to 160 (%)
Q : 100 to 200 (%)
W : 130 to 260 (%)
*2 Test circuit for switching time
PS2561A-1,PS2561AL-1, PS2561AL1-1,PS2561AL2-1
PW = 100 s
Duty Cycle = 1/10
VCC
VOUT
RL = 100 Ω
50 Ω
IF
Pulse Input
µ
TYPICAL CHARACTERISTICS (TA = 25 °C, unless otherwise specifi ed)
Remark The graphs indicate nominal characteristics.
PS2561A-1,PS2561AL-1, PS2561AL1-1,PS2561AL2-1
200
150
100
50
025 50 75 100 125
1.5 mW/˚C
Diode Power Dissipation PD (mW)
Ambient Temperature TA (˚C)
DIODE POWER DISSIPATION vs.
AMBIENT TEMPERATURE 200
150
100
50
025 50 75 100 125
1.5 mW/˚C
Transistor Power Dissipation PC (mW)
Ambient Temperature TA (˚C)
TRANSISTOR POWER DISSIPATION
vs. AMBIENT TEMPERATURE
100
1.51.41.31.21.11.00.90.80.7
50
10
5
1
0.5
0.1
0˚C
–25˚C
–55˚C
+60˚C
+25˚C
T
A
= +100˚C
Forward Current IF (mA)
Forward Voltage VF (V)
FORWARD CURRENT vs.
FORWARD VOLTAGE
0.05
Collector Current IC (mA)
Collector to Emitter Voltage VCE (V)
COLLECTOR CURRENT vs.
COLLECTOR TO EMITTER VOLTAGE
25
10
20
02
468
IF = 1 mA
15
5
10
IF = 2 mA
IF = 5 mA
IF = 10 mA
C
o
ll
ector to
E
m
i
tter
D
ar
k
C
urrent
I
CEO
(
n
A)
Ambient Tem
p
erature TA
(
˚C
)
COLLECTOR TO EMITTER DARK
CURRENT vs. AMBIENT TEMPERATURE
1
10
100
1 000
10 000
0255075100
VCE = 70 V
VCE = 24 V
Collector Saturation Volta
g
e VCE(sat)
(
V
)
COLLECTOR CURRENT vs.
COLLECTOR SATURATION VOLTAGE
Collector Current IC (mA)
0.1
1
10
00.20.4 0.6 0.8 1.0
IF = 1mA
IF = 2mA
IF = 5mA
IF = 10mA
TYPICAL CHARACTERISTICS (TA = 25 °C, unless otherwise specifi ed)
Remark The graphs indicate nominal characteristics.
PS2561A-1,PS2561AL-1, PS2561AL1-1,PS2561AL2-1
Normalized to 1.0
at TA = 25˚C,
IF = 5 mA, VCE = 5 V
Ambient Temperature TA (˚C)
Normalized Current Transfer Ratio CTR
NORMALIZED CURRENT TRANSFER
RATIO vs. AMBIENT TEMPERATURE
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
–
50
–
25 0 25 50 75 100
CTR:270%
CTR:130%
Load Resistance RL (Ω)
Switching Time t ( s)
µ
SWITCHING TIME vs.
LOAD RESISTANCE
0.1
1
10
100
10 100 1 000 10 000
t
f
t
r
t
d
t
s
IC = 2 mA, VCC = 10 V,
CTR = 216%
Fre
q
uenc
y
f
(
kHz
)
Normalized Gain GV
FREQUENCY RESPONSE
RL = 1 kΩ
300 Ω
100 Ω
I
F
= 5 mA,
V
CE
= 5 V
5
0
–
5
–
10
–
15
–
20
–
25
0.1 1 10 100 1 000
Load Resistance RL (kΩ)
SWITCHING TIME vs.
LOAD RESISTANCE
Switching Time t ( s)
µ
1
10
100
1 000
110100
t
r
t
d
t
s
t
f
IF = 5 mA, VCC = 5 V,
CTR = 216%
T
A
= 25˚C
T
A
= 60˚C
I
F
= 5 mA (TYP.)
1.2
1.0
0.8
0.6
0.4
0.2
010
2
10
3
10
4
10
5
Time
(
Hr
)
CTR (Relative Value)
LONG TERM CTR DEGRADATION
10
T
A
= 25˚C
T
A
= 60˚C
1.2
1.0
0.8
0.6
0.4
0.2
010
2
10
3
10
4
10
5
10
0
50
100
150
200
250
300
0.01 0.1 1 10 100
VCE = 5 V,
n = 2
B
Sample A
Forward Current IF (mA)
Current Transfer Ratio CTR (%)
CURRENT TRANSFER RATIO vs.
FORWARD CURRENT
TAPING SPECIFICATIONS (UNIT : mm)
Tape Direction
Outline and Dimensions (Tape)
Outline and Dimensions (Reel)
Packing: 1 000 pcs/reel
2.0±0.5
R 1.0
13.0±0.2
φ
21.0±0.8
φ
PS2561AL-1-E3
PS2561AL-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
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
PS2561A-1,PS2561AL-1, PS2561AL1-1,PS2561AL2-1
PS2561A-1,PS2561AL-1, PS2561AL1-1,PS2561AL2-1
Tape Direction
Outline and Dimensions (Tape)
Outline and Dimensions (Reel)
PS2561AL-1-F3 PS2561AL-1-F4
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: 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
TAPING SPECIFICATIONS (UNIT : mm)
NOTES ON HANDLING
(1) Infrared refl ow soldering
• Peak refl ow temperature 260°C or below (package surface temperature)
• Time of peak refl ow 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 refl ows Three
• Flux Rosin fl ux containing small amount of chlorine (The fl ux with a
maximum chlorine content of 0.2 Wt% is recommended.)
(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 fl ux containing small amount of chlorine (The fl ux with a maximum chlorine content of 0.2
Wt% is recommended.)
(3) Cautions
• Fluxes
Avoid removing the residual fl ux with freon-based and chlorine-based cleaning solvent.
USAGE CAUTIONS
1. Protect against static electricity when handling.
2. Avoid storage at a high temperature and high humidity.
PS2561A-1,PS2561AL-1, PS2561AL1-1,PS2561AL2-1
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
Life Support Applications
These NEC products are not intended for use in life support devices, appliances, or systems where the malfunction of these products can reasonably
be expected to result in personal injury. The customers of CEL using or selling these products for use in such applications do so at their own risk and
agree to fully indemnify CEL for all damages resulting from such improper use or sale.
A Business Partner of NEC Compound Semiconductor Devices, Ltd.
03/16/2004