4N35 General Purpose Optocoupler Phototransistor 7V 80mA IC DIP-6
The 4N35 is a widely used optocoupler that provides safe electrical isolation between low-voltage control circuits and high-voltage or noisy signals.
8.50 EGP
Buy Now4N35 General Purpose Optocoupler Phototransistor 7V 80mA IC DIP-6
The 4N35 Optocoupler is a general-purpose opto-isolator that combines an infrared LED and a phototransistor in a single 6-pin DIP package. By transferring signals optically instead of electrically, it effectively isolates input and output sections, helping protect sensitive electronics from voltage spikes, ground loops, and electrical noise.
This component is commonly used in digital interfaces, microcontroller inputs, and power control circuits where signal integrity and safety are critical. Its simple operating principle, reliable performance, and long-standing industry adoption make the 4N35 a trusted choice for hobbyists, students, and professional engineers alike.
Features:
- Provides electrical isolation between input and output.
- Infrared LED coupled with phototransistor output.
- Suitable for logic level signal interfacing.
- Reduces noise and ground loop problems.
- Compatible with microcontrollers and digital circuits.
- Through-hole package for easy PCB mounting.
- Reliable and widely supported industry standard.
Specifications:
| Parameter | Value |
|---|---|
| Input Type | Infrared LED |
| Output Type | Phototransistor |
| Isolation Voltage | 5000 Vrms |
| Package Type | DIP-6 |
| Operating Temperature Range | -55°C to +110°C |
| Current Transfer Ratio (CTR) | ≥ 100% |
| Collector-Emitter Voltage | 80V |
| Forward Current (LED) | Up to 60mA |
Pinout:
| Pin No. | Pin Name | Description |
|---|---|---|
| 1 | Anode | LED anode |
| 2 | Cathode | LED cathode |
| 3 | NC | Not connected |
| 4 | Emitter | Phototransistor emitter |
| 5 | Collector | Phototransistor collector |
| 6 | Base | Phototransistor base |
Footprint:
Applications:
- Microcontroller input isolation.
- Digital logic signal isolation.
- Power supply feedback circuits.
- Relay and TRIAC driver circuits.
- Industrial control interfaces.
- Noise-sensitive signal transmission.
Packages:
- 1x 4N35 General Purpose Optocoupler Phototransistor 7V 80mA IC DIP-6.