Optoisolator with NPN Output, 4-Pin DIP

High-Reliability Optocoupler for Signal Isolation

The NTE3222 optoisolator is engineered for reliable signal transmission and galvanic isolation. Featuring a GaAs infrared LED optically coupled to a silicon NPN phototransistor, this optocoupler is housed in a compact 4-pin DIP package, ideal for through-hole PCB mounting. Designed for electronic systems that demand robust electrical isolation and stable performance, the NTE3222 is a preferred choice among engineers and OEMs.

Key Technical Features of the NTE3222 Optoisolator

• Optical Isolation: Electrically isolates input and output circuits to protect against high-voltage transients and ground loop faults.
• Output: NPN Silicon Phototransistor
• Input: Gallium Arsenide (GaAs) Infrared LED
• Package: 4-pin DIP, standard 0.300" (7.62mm) lead spacing

Technical Specifications

• Isolation Voltage: Up to 5,000Vrms (input-to-output)
• Maximum Collector-Emitter Voltage (V_CEO): 80V
• Maximum Collector Current (I_C): 50mA
• Typical Current Transfer Ratio (CTR): 80% to 600% (@ I_F = 5mA, V_CE = 5V)
• Maximum Forward Current (I_F): 80mA
• Typical LED Forward Voltage (V_F): 1.17V
• Collector-Emitter Saturation Voltage (V_CE(sat)): 0.3V (max)
• Switching Speed: Rise time ≈ 3µs, Fall time ≈ 5µs

Applications

• Switching power supplies
• Telecom and data interface equipment
• Industrial process control
• Programmable logic controllers (PLCs)
• Signal isolation in measurement and sensor circuitry

Usage Instructions

• Mounts directly to standard through-hole PCBs using 4-pin DIP footprint.
• Ensure correct pin orientation: connect input LED side to signal source/current-limited input, and output NPN transistor to receiving circuit.
• Observe maximum ratings for input forward current and output collector voltage/current to maintain device reliability.

Part Number: NTE3222
Quantity Per Package: 1

This part is the equivalent replacement for the following:

2000465, NTE3222, PS2501-1, SFH615A-1, SFH615A-2, SFH615A-3