6N135 Datasheet – Photocoupler, Photodetector, DIP 8

Part Number : 6N135

Function : High Speed Transistor Optocoupler

Package : DIP 8 Pin Type

Manufacturers : Fairchild Semiconductor

Pinouts :

6N135 datasheet


Description :

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.


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)

Applications :

1. Line receivers

2. Pulse transformer replacement

3. Output interface to CMOS-LSTTL-TTL

4. Wide bandwidth analog coupling


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

6N135 Datasheet PDF Download

6N135 pdf

6N138 Datasheet – Darlington Optocoupler (Photodetector)

Part Number : 6N138


Package : DIP 8 Pin Type

Manufacturers : Fairchild Semiconductor

Pinouts :

6N138 datasheet


Description :

The 6N138 / 6N139 and HCPL2730/HCPL2731 optocouplers consist of an AlGaAs LED optically coupled to a high gain split darlington photodetector. The split darlington configuration separating the input photodiode and the first stage gain from the output transistor permits lower output saturation voltage and higher speed operation than possible with conventional darlington phototransistor optocoupler. In the dual channel devices, HCPL2730/HCPL2731, an integrated emitter-base resistor provides superior stability over temperature.

The combination of a very low input current of 0.5mA and a high current transfer ratio of 2000% makes this family particularly useful for input interface to MOS, CMOS, LSTTL and EIA RS232C, while output compatibility is ensured to CMOS as well as high fan-out TTL
requirements. An internal noise shield provides exceptional common mode rejection of 10 kV/µs.


1. Low current – 0.5mA

2. Superior CTR-2000%

3. Superior CMR-10kV/µs

4. CTR guaranteed 0–70°C

5. Dual Channel – HCPL2730, HCPL2731

Applications :

1. Digital logic ground isolation

2. Telephone ring detector

3. EIA-RS-232C line receiver

4. High common mode noise line receiver

Other data sheets within the file : 6N139, HCPL2730, HCPL2731

6N138 Datasheet PDF Download

6N138 pdf