Description
The 4N35 is a popular optocoupler device that consists of an infrared LED and a silicon NPN phototransistor housed in a 6-pin DIP package. This device is designed to provide electrical isolation between input and output circuits, making it ideal for preventing high voltages from affecting the system receiving the signal. The optocoupler works by using the LED to transmit infrared light to the phototransistor, which then switches in response to the light intensity, effectively transferring the input signal to the output side while maintaining isolation.
Specifications
. Electrical Characteristics:
- LED Forward Voltage (V_F): 1.2V typical, 1.4V maximum (at IF = 10mA)
- LED Reverse Voltage (V_R): 6V maximum
- LED Forward Current (I_F): 60mA maximum
- Phototransistor Collector-Emitter Voltage (V_CE): 30V maximum
- Collector Current (I_C): 50mA maximum
- Current Transfer Ratio (CTR): 20% to 300% (depending on the model and test conditions)
2. Isolation Characteristics:
- Isolation Voltage: 5000 VRMS (for 1 minute)
- Creepage Distance: ≥7mm
- Clearance Distance: ≥7mm
3. Dynamic Characteristics:
- Rise Time (t_r): 3 µs typical
- Fall Time (t_f): 2 µs typical
- Turn-On Time (t_on): 3 µs typical
- Turn-Off Time (t_off): 2 µs typical
4. Package Information:
- Package Type: 6-Pin DIP (Dual In-line Package)
- Pin Configuration:
- Pin 1: Anode (LED)
- Pin 2: Cathode (LED)
- Pin 3: No Connection
- Pin 4: Emitter (Phototransistor)
- Pin 5: Collector (Phototransistor)
- Pin 6: No Connection
Note
* Product Images are shown for illustrative purposes only and may differ from actual product
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