4N25-X, 4N26-X, 4N27-X, 4N28-X
www.vishay.com
Vishay Semiconductors
Optocoupler, Phototransistor Output, with Base Connection
FEATURES
• Isolation test voltage 5000 VRMS
• Interfaces with common logic families
A
1
6 B
C
2
5 C
NC
3
4 E
• 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
i179004-14
DESCRIPTION
• Switch mode power supply feedback
The 4N25 family is an Industry Standard Single Channel
Phototransistor Coupler. This family includes the 4N25, 4N26,
4N27, 4N28. 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 special Vishay
manufacturing process.
Compliance to DIN EN 60747-5-2 (VDE 0884)/
DIN EN 60747-5-5 pending partial discharge isolation
specification is available by ordering option 1.
These isolation processes and the Vishay ISO9001 quality
program results in the highest isolation performance available
for a commercial plastic phototransistor optocoupler.
The devices are also available in lead formed configuration
suitable for surface mounting and are available either on tape
and reel, or in standard tube shipping containers.
• Telephone ring detection
• Logic ground isolation
• Logic coupling with high frequency noise rejection
AGENCY APPROVALS
• UL file no. E52744
• cUL tested to CSA 22.2 bulletin 5A
• DIN EN 60747-5-2 (VDE 0884)/DIN EN 60747-5-5
(pending), available with option 1
• BSI: EN 60065, EN 60950-1
• FIMKO
• CQC
Note
• For additional design information see application note 45
normalized curves
ORDERING INFORMATION
4
N
2
x
-
PART NUMBER
AGENCY CERTIFIED/PACKAGE
UL, cUL, BSI, FIMKO
DIP-6
DIP-6, 400 mil, option 6
SMD-6, option 7
SMD-6, option 9
VDE, UL, cUL, BSI, FIMKO
DIP-6
DIP-6, 400 mil, option 6
SMD-6, option 7
X
0
#
#
PACKAGE OPTION
DIP-6
Option 6
7.62 mm
10.16 mm
Option 7
Option 9
> 8 mm
8 mm typ.
T
TAPE
AND
REEL
CTR (%)
≥ 20
4N25-X000
4N25-X006
4N25-X007T
4N25-X009T (1)
≥ 10
4N26-X006
4N26-X009T (1)
4N27-X000
4N27-X007
4N27-X009T (1)
4N26-X001
4N26-X016
4N26-X017T (1)
4N27-X017T
≥ 20
4N25-X001
4N25-X016
4N25-X017T (1)
4N28-X009T (1)
≥ 10
4N28-X001
-
Notes
• Additional options may be possible, please contact sales office.
(1) Also available in tubes; do not put T on end.
Document Number: 81864
1
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Rev. 1.2, 16-Jan-12
4N25-X, 4N26-X, 4N27-X, 4N28-X
www.vishay.com
Vishay Semiconductors
ABSOLUTE MAXIMUM RATINGS (Tamb = 25 °C, unless otherwise specified)
PARAMETER
INPUT
Reverse voltage
Forward current
Surge current
Power dissipation
OUTPUT
Collector emitter breakdown voltage
Emitter base breakdown voltage
Collector current
Collector peak current
Output power dissipation
COUPLER
Isolation test voltage
Creepage distance
Clearance distance
Isolation thickness between emitter and
detector
Comparative tracking index
Isolation resistance
Storage temperature
Operating temperature
Junction temperature
Soldering temperature (1)
TEST CONDITION
t ≤ 10 μs
tp/T = 0.5, tp ≤ 10 ms
DIN IEC 112/VDE0303, part 1
VIO = 500 V, Tamb = 25 °C
VIO = 500 V, Tamb = 100 °C
2 mm from case, ≤ 10 s
SYMBOL
VALUE
UNIT
VR
IF
IFSM
Pdiss
6
60
2.5
70
V
mA
A
mW
VCEO
VEBO
IC
ICM
Pdiss
70
7
50
100
150
V
V
mA
mA
mW
VISO
5000
≥7
≥7
VRMS
mm
mm
≥ 0.4
mm
≥ 175
≥ 1012
≥ 1011
- 55 to + 150
- 55 to + 100
100
260
Ω
Ω
°C
°C
°C
°C
RIO
RIO
Tstg
Tamb
Tj
Tsld
Notes
• 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.
(1) Refer to reflow profile for soldering conditions for surface mounted devices (SMD). Refer to wave profile for soldering conditions for through
hole devices (DIP).
ELECTRICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PARAMETER
INPUT
Forward voltage (1)
Reverse current (1)
Capacitance
OUTPUT
Collector base breakdown voltage (1)
Collector emitter breakdown voltage(1)
Emitter collector breakdown voltage (1)
ICEO(dark)
(1)
ICBO(dark) (1)
Collector emitter capacitance
COUPLER
Isolation test voltage (1)
Saturation voltage, collector emitter
Resistance, input output (1)
Capacitance, input output
TEST CONDITION
PART
SYMBOL
IF = 50 mA
VR = 3.0 V
VR = 0 V
VF
IR
CO
IC = 100 μA
IC = 1.0 mA
IE = 100 μA
BVCBO
BVCEO
BVECO
VCE = 10 V, (base open)
MIN.
CCE
Peak, 60 Hz
ICE = 2.0 mA, IF = 50 mA
VIO = 500 V
f = 1 MHz
VIO
VCE(sat)
RIO
CIO
MAX.
UNIT
1.36
0.1
25
1.5
100
V
μA
pF
70
30
7
4N25
4N26
4N27
4N28
VCB = 10 V,
(emitter open)
VCE = 0
TYP.
5
5
5
10
50
50
50
100
V
V
V
nA
nA
nA
nA
2.0
20
nA
6.0
pF
5000
0.5
100
0.5
V
V
GΩ
pF
Notes
• 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.
(1) JEDEC registered values are 2500 V, 1500 V, 1500 V and 500 V for the 4N25, 4N26, 4N27, and 4N28 respectively.
Document Number: 81864
2
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Rev. 1.2, 16-Jan-12
4N25-X, 4N26-X, 4N27-X, 4N28-X
www.vishay.com
Vishay Semiconductors
CURRENT TRANSFER RATIO (Tamb = 25 °C, unless otherwise specified)
PARAMETER
TEST CONDITION
IC/IF
VCE = 10 V, IF = 10 mA
PART
SYMBOL
MIN.
TYP.
4N25
CTRDC
20
50
MAX.
UNIT
%
4N26
CTRDC
20
50
%
4N27
CTRDC
10
30
%
4N28
CTRDC
10
30
%
Note
• Indicates JEDEC registered values.
SWITCHING CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PARAMETER
TEST CONDITION
SYMBOL
Rise time
VCC = 5 V, IF = 10 mA, RL = 100 Ω
tr
MIN.
TYP.
2.0
MAX.
UNIT
μs
Fall time
VCC = 5 V, IF = 10 mA, RL = 100 Ω
tf
2.0
μs
IF
IF
+5V
IF
0
0
tp
IC
t
100 %
90 %
R G = 50 Ω
tp
= 0.01
T
t p = 50 µs
Channel I
Channel II
50 Ω
Oscilloscope
R L = 1 MΩ
C L = 20 pF
10 %
0
tr
td
RL
95 10804-3
t off
t on
tp
td
tr
t on (= td + tr)
ts
tf
t off (= ts + tf)
Pulse duration
Delay time
Rise time
Turn-on time
Fig. 1 - Test Circuit, Non-Saturated Operation
t
tf
ts
Storage time
Fall time
Turn-off time
96 11698
Fig. 2 - Switching Times
1.8
1.7
Tamb = 0 °C
1.6
T
=
- 25 °C
amb
1.5
1.4
Tamb = - 40 °C
1.3 T = - 55 °C
amb
1.2
1.1
Tamb = 25 °C
1.0
T
amb = 50 °C
0.9
Tamb = 75 °C
0.8
0.7
Tamb = 100 °C
0.6
0.1
1
10
100
60
IC - Collector Current (mA)
VF - Forward Voltage (V)
TYPICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
IF = 30 mA
50
40
IF = 20 mA
30
IF = 15 mA
20
IF = 10 mA
10
IF = 5 mA
0
0
1
2
3
4
5
6
7
8
IF - Forward Current (mA)
VCE - Collector Emitter Voltage (NS) (V)
Fig. 3 - Forward Voltage vs. Forward Current
Fig. 4 - Collector Current vs. Collector Emitter Voltage (NS)
Document Number: 81864
3
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Rev. 1.2, 16-Jan-12
4N25-X, 4N26-X, 4N27-X, 4N28-X
www.vishay.com
Vishay Semiconductors
25
IC - Collector Current (mA)
20
15
IF = 10 mA
10
IF = 5 mA
5
IF = 1 mA
IF = 2 mA
CTRNorm - Normalized CTR (sat)
1.2
IF = 25 mA
0
0.1
0
0.2
0.3
IF = 5 mA
0.8
0.6
IF = 1 mA
0.4
0.2
0
- 60 - 40 - 20
0.4
VCE = 0.4 V
IF = 10 mA
1.0
0
20
40
60
80 100
VCE - Collector Emitter Voltage (sat) (V)
Tamb - Ambient Temperature (°C)
Fig. 5 - Collector Current vs. Collector Emitter Voltage (sat)
Fig. 8 - Normalized CTR (sat) vs. Ambient Temperature
10 000
ICE0 - Leakage Current (nA)
1000
VCE = 40 V
100
VCE = 24 V
10
1
VCE = 12 V
0.1
0.01
0.001
- 60 - 40 - 20
0
20
40
60
CTRNorm - Normalized CTR (NS)
1.2
IF = 0 mA
VCE = 5 V
1.0
Tamb = 25 °C
Tamb = 0 °C
0.8
0.6
Tamb = - 40 °C
Tamb = - 55 °C
Tamb = 50 °C
0.4
Tamb = 75 °C
0.2
Tamb = 100 °C
0
0.1
80 100
1
10
100
Tamb - Ambient Temperature (°C)
IF - Forward Current (mA)
Fig. 6 - Leakage Current vs. Ambient Temperature
Fig. 9 - Normalized CTR (NS) vs. Forward Current
1.2
VCE = 5 V
IF = 10 mA
1.0
IF = 5 mA
0.8
0.6
IF = 1 mA
0.4
0.2
0
- 60 - 40 - 20
0
20
40
60
80 100
CTRNorm - Normalized CTR (sat)
CTRNorm - Normalized CTR (NS)
1.2
VCE = 0.4 V
1.0
Tamb = 25 °C
Tamb = 0 °C
0.8
Tamb = - 40 °C
Tamb = - 55 °C
0.6
0.4
Tamb = 50 °C
Tamb = 75 °C
0.2
Tamb = 100 °C
0
0.1
1
10
100
Tamb - Ambient Temperature (°C)
IF - Forward Current (mA)
Fig. 7 - Normalized CTR (NS) vs. Ambient Temperature
Fig. 10 - Normalized CTR (sat) vs. Forward Current
Document Number: 81864
4
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Rev. 1.2, 16-Jan-12
4N25-X, 4N26-X, 4N27-X, 4N28-X
www.vishay.com
Vishay Semiconductors
0
VCE = 5 V
- 20
Phase (deg)
- 40
- 60
- 80
- 100
- 120
- 140
- 160
1
10
1000
100
f - Frequency (kHz)
Fig. 11 - CTR Frequency vs. Phase Angle
1000
fCTR - CTR Frequency (kHz)
VCC = 5 V
100
10
1
0.1
1
10
100
IC - Collector Current (mA)
Fig. 12 - CTR Frequency vs. Collector Current
1000
ton, toff - Switching Time (μs)
VCE = 5 V, IF = 10 mA
toff
100
10
ton
1
0.1
0.1
1
10
100
RL - Load Resistance (kΩ)
Fig. 13 - Switching Time vs. Load Resistance
Document Number: 81864
5
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Rev. 1.2, 16-Jan-12
4N25-X, 4N26-X, 4N27-X, 4N28-X
www.vishay.com
Vishay Semiconductors
PACKAGE DIMENSIONS in millimeters
6.5 ± 0.5
7.3 ± 0.5
7.62 ± 0.3
1.1 ± 0.1
3.5 ± 0.3
0.5 typ.
3.3 ± 0.5
2.8 ± 0.5
0.26
0.5 ± 0.1
2.54 ± 0.25
7.62 to 9.98
22530
Option 6
Option 7
7.62 typ.
7.62 typ.
3.5 ± 0.3
7.62 typ.
3.5 ± 0.3
0.35 ± 0.25
0.1 min.
Option 9
0.6 min.
8 min.
2.7 min.
10.16 typ.
0.1 ± 0.1
0.6 min.
3.5 ± 0.3
8.16 ± 0.8
10.16 ± 0.3
10.3 max.
0.76
R 0.25
2.54
0.76
2.54
R 0.25
1.78
20802-34
8 min.
11.05
1.52
1.78
8 min.
11.05
1.52
PACKAGE MARKING
4N26
V YWW 25
Notes
• VDE logo is only marked on option 1 parts. Option information is not marked on the part.
• Tape and reel suffix (T) is not part of the package marking.
Document Number: 81864
6
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Rev. 1.2, 16-Jan-12
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
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Statements regarding the suitability of products for certain types of applications are based on Vishay's knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer's responsibility to validate that a particular product
with the properties described in the product specification is suitable for use in a particular application. Parameters provided in
datasheets and / or specifications may vary in different applications and performance may vary over time. All operating
parameters, including typical parameters, must be validated for each customer application by the customer's technical experts.
Product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited
to the warranty expressed therein.
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Revision: 01-Jan-2022
1
Document Number: 91000