Document Number: 83717 For technical questions, contact: optocoupleranswers@vishay.com www.vishay.com
Rev. 1.7, 13-Oct-09 153
Optocoupler, Phototransistor Output, with Base Connection
4N35-X, 4N36-X, 4N37-X, 4N38
Vishay Semiconductors
DESCRIPTION
This data sheet presents five families of Vishay industry
standard single channel phototransistor couplers. These
families include the 4N35, 4N36, 4N37, 4N38 couplers.
Each optocoupler consists of gallium arsenide infrared LED
and a silicon NPN phototransistor.
These couplers are Underwriters Laboratories (UL) listed to
comply with a 5300 VRMS isolation test voltage.
This isolation performance is accomplished through Vishay
double molding isolation manufacturing process. Comliance
to DIN EN 60747-5-5 partial discharge isolation specification
is available for these families by ordering option 1.
These isolation processes and the Vishay ISO9001 quality
program results in the highest isolation performance
available for a commecial plastic phototransistor
optocoupler.
The devices are available in lead formed configuration
suitable for surface mounting and are available either on
tape and reel, or in standard tube shipping containers.
Note:
For additional design information see application note 45 normalized
curves
FEATURES
Isolation test voltage 5300 VRMS
Interfaces with common logic families
Input-output coupling capacitance < 0.5 pF
Industry standard dual-in-line 6 pin package
Compliant to RoHS directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
APPLICATIONS
AC mains detection
Reed relay driving
Switch mode power supply feedback
Telephone ring detection
Logic ground isolation
Logic coupling with high frequency noise rejection
AGENCY APPROVALS
Underwriters laboratory file no. E52744
DIN EN 60747-5-5 (VDE 0884) available with option 1
Note
For additional information on the available options refer to option information.
i179004-2
1
2
3
6
5
4
B
C
E
A
C
NC
V
DE
i179004-1
ORDER INFORMATION
PART REMARKS
4N35-X000 CTR > 100 %, DIP-6
4N36-X000 CTR > 100 %, DIP-6
4N37-X000 CTR > 100 %, DIP-6
4N38 CTR > 20 %, DIP-6
4N35-X006 CTR > 100 %, DIP-6 400 mil (option 6)
4N35-X007 CTR > 100 %, SMD-6 (option 7)
4N35-X009 CTR > 100 %, SMD-6 (option 9)
4N36-X007 CTR > 100 %, SMD-6 (option 7)
4N36-X009 CTR > 100 %, SMD-6 (option 9)
4N37-X006 CTR > 100 %, DIP-6 400 mil (option 6)
4N38-X009 CTR > 100 %, SMD-6 (option 9)
www.vishay.com For technical questions, contact: optocoupleranswers@vishay.com Document Number: 83717
154 Rev. 1.7, 13-Oct-09
4N35-X, 4N36-X, 4N37-X, 4N38
Vishay Semiconductors Optocoupler, Phototransistor Output,
with Base Connection
Notes
(1) Tamb = 25 °C, unless otherwise specified.
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Functional operation of the device is not
implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute maximum
ratings for extended periods of the time can adversely affect reliability.
(2) Refer to reflow profile for soldering conditions for surface mounted devices (SMD). Refer to wave profile for soldering condditions for through
hole devices (DIP).
ABSOLUTE MAXIMUM RATINGS (1)
PARAMETER TEST CONDITION SYMBOL VALUE UNIT
INPUT
Reverse voltage VR6V
Forward current IF60 mA
Surge current t 10 µs IFSM 2.5 A
Power dissipation Pdiss 100 mW
OUTPUT
Collector emitter breakdown voltage VCEO 70 V
Emitter base breakdown voltage VEBO 7V
Collector current IC50 mA
t 1 ms IC100 mA
Power dissipation Pdiss 150 mW
COUPLER
Isolation test voltage VISO 5300 VRMS
Creepage 7mm
Clearance 7mm
Isolation thickness between emitter
and detector 0.4 mm
Comparative tracking index DIN IEC 112/VDE 0303, part 1 175
Isolation resistance VIO = 500 V, Tamb = 25 °C RIO 1012 Ω
VIO = 500 V, Tamb = 100 °C RIO 1011 Ω
Storage temperature Tstg - 55 to + 150 °C
Operating temperature Tamb - 55 to + 100 °C
Junction temperature Tj100 °C
Soldering temperature (2)
max.10 s dip soldering:
distance to seating plane
1.5 mm
Tsld 260 °C
ELECTRICAL CHARACTERISTICS (1)
PARAMETER TEST CONDITION PART SYMBOL MIN. TYP. MAX. UNIT
INPUT
Junction capacitance VR = 0 V, f = 1 MHz Cj50 pF
Forward voltage (2) IF = 10 mA VF1.3 1.5 V
IF = 10 mA, Tamb = - 55 °C VF0.9 1.3 1.7 V
Reverse current (2) VR = 6 V IR0.1 10 µA
Capacitance VR = 0 V, f = 1 MHz CO25 pF
OUTPUT
Collector emitter breakdown
voltage (2) IC = 1 mA
4N35 BVCEO 30 V
4N36 BVCEO 30 V
4N37 BVCEO 30 V
4N38 BVCEO 80 V
Emitter collector breakdown
voltage (2) IE = 100 µA BVECO 7V
Document Number: 83717 For technical questions, contact: optocoupleranswers@vishay.com www.vishay.com
Rev. 1.7, 13-Oct-09 155
4N35-X, 4N36-X, 4N37-X, 4N38
Optocoupler, Phototransistor Output,
with Base Connection Vishay Semiconductors
Notes
(1) Tamb = 25 °C, unless otherwise specified.
Minimum and maximum values are testing requirements. Typical values are characteristics of the device and are the result of engineering
evaluation. Typical values are for information only and are not part of the testing requirements.
(2) Indicates JEDEC registered value.
Note
(1) Indicates JEDEC registered values.
Note
(1) Indicates JEDEC registered values.
OUTPUT
Collector base breakdown
voltage (2) IC = 100 µA, IB = 1 µA
4N35 BVCBO 70 V
4N36 BVCBO 70 V
4N37 BVCBO 70 V
4N38 BVCBO 80 V
Collector emitter leakage current (2)
VCE = 10 V, IF = 0 4N35 ICEO 550nA
4N36 ICEO 550nA
VCE = 10 V, IF = 0 4N37 ICEO 550nA
VCE = 60 V, IF = 0 4N38 ICEO 50 nA
VCE = 30 V, IF = 0,
Tamb = 100 °C
4N35 ICEO 500 µA
4N36 ICEO 500 µA
4N37 ICEO 500 µA
VCE = 60 V, IF = 0,
Tamb = 100 °C 4N38 ICEO A
Collector emitter capacitance VCE = 0 CCE 6pF
COUPLER
Resistance, input output (2) VIO = 500 V RIO 1011 Ω
Capacitance, input output f = 1 MHz CIO 0.5 pF
CURRENT TRANSFER RATIO
PARAMETER TEST CONDITION PART SYMBOL MIN TYP. MAX UNIT
DC current transfer ratio(1)
VCE = 10 V, IF = 10 mA
4N35 CTRDC 100 %
4N36 CTRDC 100 %
4N37 CTRDC 100 %
VCE = 10 V, IF = 20 mA 4N38 CTRDC 20 %
VCE = 10 V, IF = 10 mA,
TA = - 55 °C to + 100 °C
4N35 CTRDC 40 50 %
4N36 CTRDC 40 50 %
4N37 CTRDC 40 50 %
4N38 CTRDC 30 %
SWITCHING CHARACTERISTICS
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
Switching time (1) VCC = 10 V, IC = 2 mA, RL = 100 Ωton, toff 10 µs
ELECTRICAL CHARACTERISTICS (1)
PARAMETER TEST CONDITION PART SYMBOL MIN. TYP. MAX. UNIT
www.vishay.com For technical questions, contact: optocoupleranswers@vishay.com Document Number: 83717
156 Rev. 1.7, 13-Oct-09
4N35-X, 4N36-X, 4N37-X, 4N38
Vishay Semiconductors Optocoupler, Phototransistor Output,
with Base Connection
TYPICAL CHARACTERISTICS
Tamb = 25 °C, unless otherwise specied
Fig. 1 - Forward Voltage vs. Forward Current
Fig. 2 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
Fig. 3 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
Fig. 4 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
Fig. 5 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
Fig. 6 - Collector Emitter Current vs.
Temperature and LED Current
i4n25_01
1001010.1
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
IF - Forward Current (mA)
VF -Forward Voltage (V)
TA = - 55 °C
TA = 25 °C
TA = 85 °C
i4n25_02
0.0
0.5
1.0
1.5
0 10 100
I
F
- LED Current (mA)
NCTR
NCTR(SAT)
NCTR - Normalized CTR
CTR
CE(sat)
= 0.4 V
V
CE
= 10 V, I
F
= 10 mA, T
A
= 25 °C
T
A
= 25 °C
Normalized to:
1
i4n25_03
1001010.1
0.0
0.5
1.0
1.5
I
F
- LED Current (mA)
N
CTR
- Normalized CTR
CTRCE(sat) VCE = 0.4 V
NCTR
NCTR(SAT)
TA = 50 °C
Normalized to:
VCE = 10 V, IF = 10 mA, TA = 25 °C
i4n25_04
1001010.1
0.0
0.5
1.0
1.5
IF - LED Current (mA)
NCTR - Normalized CTR
NCTR
NCTR(SAT)
TA = 70 °C
Normalized to:
CTRCE(sat) VCE = 0.4 V
VCE = 10 V, IF = 10 mA, TA = 25 °C
i4n25_05
1001010.1
0.0
0.5
1.0
1.5
IF - LED Current (mA)
NCTR - Normalized CTR
NCTR
NCTR(SAT)
TA = 85 °C
Normalized to:
CTRCE(sat) VCE = 0.4 V
VCE = 10 V, IF = 10 mA, TA = 25 °C
i4n25_06
6050403020100
0
5
10
15
20
25
30
35
50 °C
70 °C
85 °C
IF - LED Current (mA)
ICE - Collector Current (mA)
25 °C
Document Number: 83717 For technical questions, contact: optocoupleranswers@vishay.com www.vishay.com
Rev. 1.7, 13-Oct-09 157
4N35-X, 4N36-X, 4N37-X, 4N38
Optocoupler, Phototransistor Output,
with Base Connection Vishay Semiconductors
Fig. 7 - Collector Emitter Leakage Current vs. Temperature
Fig. 8 - Normalized CTRcb vs. LED Current and Temperature
Fig. 9 - Normalized Photocurrent vs. IF and Temperature
Fig. 10 - Normalized Non-Saturated hFE vs.
Base Current and Temperature
Fig. 11 - Normalized hFE vs. Base Current and Temperature
Fig. 12 - Propagation Delay vs. Collector Load Resistor
i4n25_07
100806040200- 20
10- 2
10- 1
100
101
102
103
104
105
Tamb- Ambient Temperature (°C)
ICEO - Collector Emitter (nA)
Typical
VCE = 10 V
i4n25_08
0.0
0.5
1.0
1.5
25 °C
50 °C
70 °C
IF - LED Current (mA)
NCTRcb - Normalized CTRcb
0.1 1 10 100
Normalized to:
VCB = 9.3 V, IF = 10 mA, TA = 25 °C
i4n25_09
0.
0.01
1
1
10
IF - LED Current (mA)
Normalized Photocurrent
0.1 1 10 100
IF = 10 mA, TA = 25 °C
Nib, TA = - 20 °C
Normalized to:
Nib, TA = 20 °C
Nib, TA = 50 °C
Nib, TA = 70 °C
i4n25_10
0.4
0.6
1.0
1.2
I
b
- Base Current (µA)
1 10 100 1000
IB = 20 µA, VCE = 10 V,
TA = 25 °C
25 °C
70 °C
- 20 °C
Nh
FE
- Normalized h
FE
0.8
Normalized to:
i4n25_11
0.0
0.5
1.0
1.5
25 °C
- 20 °C
50 °C
70 °C
Nh
FE(sat)
- Normalized Saturated h
FE
1 10 100 1000
VCE = 10 V, Ib = 20 µA
TA = 25 °C
VCE = 0.4 V
Ib - Base Current (µA)
Normalized to:
i4n25_12
1
10
100
1000
RL - Collector Load Resistor (kΩ)
tPLH- Propagation Delay (µs)
2.5
2.0
1.5
1.0
0.1 1 10 100
IF = 10 mA, TA = 25 °C
VCC = 5.0 V, Vth = 1.5 V
tPLH
tPHL
tPHL - Propagation Delay (µs)
www.vishay.com For technical questions, contact: optocoupleranswers@vishay.com Document Number: 83717
158 Rev. 1.7, 13-Oct-09
4N35-X, 4N36-X, 4N37-X, 4N38
Vishay Semiconductors Optocoupler, Phototransistor Output,
with Base Connection
Fig. 13 - Switching Timing Fig. 14 - Switching Schematic
PACKAGE DIMENSIONS in millimeters
PACKAGE MARKING
i4n25_13
I
F
t
R
= 1.5 V
V
O
t
D
t
S
t
F
t
PHL
t
PLH
V
TH
i4n25_14
VCC = 5 V
f = 10 kHz
DF = 50 %
RL
VO
IF = 10 mA
i178004
0.25 typ.
2.9
3
3.30
3.81
0.8 min.
7.62 typ.
0.8
0.9
2.54 typ.
1 min.
0.45
0.55
0.55
6.3
6.5
8.5
8.7
Pin one ID
6
5
4
12
3
18°
3° to 9°
7.62 to 8.81
4° typ.
ISO method A
0.45
8 min.
0.51
1.02
7.62 ref.
9.53
10.03
0.25 typ.
0.102
0.249
15° max.
Option 9
0.35
0.25
10.16
10.92
7.8
7.4
10.36
9.96
Option 6
8 min.
7.62 typ.
4.6
4.1
8.4 min.
10.3 max.
0.7
Option 7
18450
21764-23
4N35
X017T
V YWW H 68
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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