Vishay Photoransistor Industry Standard Single Channel 6-Pin DIP Optocoupler User Manual
Summary
Discover high-performance optocouplers designed for critical signal isolation in various electronic systems. This comprehensive document details advanced phototransistor couplers (including 4N2x, H11Ax, and MCTx families) that deliver superior electrical isolation up to 5300 V RMS. The manual provides detailed specifications, performance graphs, and technical guidelines covering operating voltages, current ratings, and high-frequency stability. Ideal for engineers requiring reliable signal coupling in applications like AC mains detection, logic ground isolation, or motor control.
Page 1 Text Content
Phototransistor
Industry Standard Single Channel 6 Pin DIP Optocoupler
DEVICE TYPES
Dimensions in Inches (mm)
Part No. CTR % Min. Part No. CTR % Min. 4N25 MCT2 pin one ID 4N26 MCT2E
Anode
4N27 MCT270 .248 (6.30) .256 (6.50)
4N28 MCT271 45–90 Cathode Collector 4N35 MCT272 75–150
NC Emitter
4N36 MCT273 125–250
4N37 MCT274 225–400
4N38 MCT275 70–90 .300 (7.62)
H11A1 MCT276 15–60 (1.00) .022 (0.55)
H11A2 MCT277 .130 (3.30) .150 (3.81)
.031 (0.80) min. .130 (3.0)
.031 (0.80) typ.
FEATURES .300–.347
.100 (2.54) typ. (7.62–8.81)
Interfaces with Common Logic Families Input-output Coupling Capacitance < 0.5 p F Industry Standard Dual-in-line 6-pin Package DESCRIPTION Field Effect Stable by TRIOS
This data sheet presents five families of Vishay Industry Standard
5300 V Isolation Test Voltage Single Channel Phototransistor Couplers. These families include the RMS Underwriters Laboratory File #E52744 4N25/26/27/28 types, the 4N35/36/37/38 couplers, the H11A1/A2/ VDE #0884 Approval Available with Option 1 A3/A4/A5, the MCT2/2E, and MCT270/271/272/273/274/275/276/
277 devices.Each optocoupler consists of Gallium Arsenide infra-
APPLICATIONS
red LED and a silicon NPN phototransistor.
AC Mains Detection
These couplers are Underwriters Laboratories (UL) listed to comply
Reed Relay Driving
with a 5300 V Isolation Test Voltage. This isolation performance
Switch Mode Power Supply Feedback
is accomplished through Vishay double molding isolation manufac-
Telephone Ring Detection
turing process. Compliance to VDE 0884 partial discharge isolation
Logic Ground Isolation specification is available for these families by ordering option 1. Logic Coupling with High Frequency Noise Phototransistor gain stability, in the presence of high isolation volt- Rejection ages, is insured by incorporating a TRansparent l On Shield
(TRIOS) on the phototransistor substrate. These isolation pro-
Notes:
cesses and the Vishay IS09001 Quality program results in the high-
Designing with data sheet is covered in Application Note 45.
est isolation performance available for a commercial 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.
Document Number: 83717 www.vishay.com Revision 17-August-01 2–53
Page Summary Contents For Vishay Photoransistor Industry Standard Single Channel 6-Pin DIP Optocoupler User Manual
Manual Details
| Brand | Vishay |
|---|---|
| Pages | 7 |
| File Size | 415.94 KB |
| Published | July 16, 2026 |
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Frequently Asked Questions
What is the primary isolation rating of these optocouplers?
They are tested up to 5300 V RMS, meeting UL and VDE standards.
What temperature range can the device operate within?
The recommended operating temperature range is from –55°C to +100°C.
Are these devices suitable for common industrial applications?
Yes, they are listed for AC Mains Detection and Switching Mode Power Supply feedback.
In what formats are the optocouplers delivered for surface mounting?
They are available in lead formed configuration on tape and reel, or in standard tube shipping containers.