6N135 Datasheet – Photocoupler, Photodetector, DIP 8

Part Number: 6N135

Function: High Speed Transistor Optocoupler

Package: DIP 8 Pin Type

Manufacturer: Fairchild Semiconductor

Image and Pinouts:

6N135 datasheet



The HCPL4502, HCPL2503, 6N135, 6N136, HCPL2530 and HCPL2531 optocouplers consist of an AlGaAs LED optically coupled to a high speed photodetector transistor.

A separate connection for the bias of the photodiode improves the speed by several orders of magnitude over conventional phototransistor optocouplers by reducing
the base-collector capacitance of the input transistor. An internal noise shield provides superior common mode rejection of 10kV/µs. An improved package allows superior insulation permitting a 480V working voltage compared to industry standard of 220V.

A photocoupler, also known as an optocoupler or an optical isolator, is an electronic component that provides electrical isolation between two circuits while allowing them to communicate with each other optically. It typically consists of an LED and a photodetector, such as a photodiode or a phototransistor, housed in a single package. The LED transmits an optical signal to the photodetector, which converts it into an electrical signal that can be used to trigger or switch another circuit.

A photodetector, also known as a photosensor or light sensor, is an electronic device that detects and measures the intensity or presence of light. It converts light energy into an electrical signal that can be processed or used in various applications.

Photodetectors play a vital role in capturing and converting light into electrical signals, enabling numerous applications in diverse fields such as telecommunications, consumer electronics, industrial automation, medical devices, and scientific research.


1. High speed –1 MBit/s

2. Superior CMR – 10kV/µs

3. Dual-Channel HCPL2530/HCPL2531

4. Double working voltage – 480V RMS

5. CTR guaranteed 0–70°C

6. U.L. recognized (File # E90700)



1. Line receivers

2. Pulse transformer replacement

3. Output interface to CMOS-LSTTL-TTL

4. Wide bandwidth analog coupling

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Other data sheets are available within the file: 6N136, HCPL2503, HCPL2530, HCPL2531

6N135 Datasheet PDF Download

6N135 pdf