Description

NEC Optocoupler 2701 – Specifications

Product Type:
Optocoupler / Photocoupler (Transistor Output Type)

Brand:
NEC

Model:
2701 (PS2701 series equivalent)

Function

Designed to provide electrical isolation between input and output circuits using optical coupling, typically used for signal isolation in control and power electronic systems.

Electrical Data

Input Type: Infrared LED (GaAs)
Output Type: NPN Phototransistor
Isolation Voltage: up to 3750 Vrms
Forward Current (LED): max approx. 50 mA
Collector-Emitter Voltage: min 40 V
Current Transfer Ratio (CTR): approx. 50% – 100% (depending on variant)
Operating Temperature: -55°C to +100°C

Performance Features

High isolation voltage for safe signal separation
High-speed switching capability
Low leakage current
Stable performance under industrial conditions
Suitable for digital and control signal transmission

Mechanical Data

Package Type: SOP-4 (Small Outline Package)
Mounting Type: Surface Mount (SMD)
Compact design for high-density PCB installation

Applications

Industrial automation systems
Power supply control circuits
PLC input/output isolation
Measurement and instrumentation systems
General electronic signal isolation applications