4N25

$0.60

Description：OPTOISO 5KV TRANS W/BASE 6-DIP
Series：-
Mfr：Texas Instruments
Package：Bulk

SKU:352b4e40678c Category: Transistor, Photovoltaic Output Optoisolators Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：OPTOISO 5KV TRANS W/BASE 6-DIP
Series：-
Mfr：Texas Instruments
Package：Bulk
Number of Channels：1
Voltage - Isolation：5000Vrms
Current Transfer Ratio (Min)：20% @ 10mA
Current Transfer Ratio (Max)：-
Turn On / Turn Off Time (Typ)：-
Rise / Fall Time (Typ)：2µs, 2µs
Input Type：DC
Output Type：Transistor with Base
Voltage - Output (Max)：70V
Current - Output / Channel：50mA
Voltage - Forward (Vf) (Typ)：1.3V
Current - DC Forward (If) (Max)：60 mA
Vce Saturation (Max)：500mV
Operating Temperature：-55°C ~ 100°C
Mounting Type：Through Hole
Package / Case：6-DIP (0.300", 7.62mm)
Supplier Device Package：6-DIP
Grade：-
Qualification：-

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4N25

Overview

The CD74ACT257EE4 is a quad multiplexer with three-state outputs, operating at 4.5V to 5.5V with 9.7ns propagation delay in a PDIP-16 package. The SN74HC42N is a 4-to-10 line decoder functioning within a 2V to 6V range and 38ns delay, also in PDIP-16. The SN74LS245N is an octal bus transceiver supporting TTL levels from 4.75V to 5.25V with 12ns delay in a 20-pin PDIP. The 4N25 is a single-channel phototransistor optocoupler providing 2500V isolation.

Feature Summary

Provides electrical isolation between input and output circuits via infrared light transmission
Features a phototransistor output compatible with standard TTL integrated circuits
Offers high voltage isolation capability for noise immunity

Applications

Signal isolation in digital communication systems
Interfacing microprocessors with peripheral devices
Noise suppression in industrial control environments

Procurement Notes

Verify the specific manufacturer designation, as multiple vendors produce this component. Confirm the package type matches your PCB footprint requirements. Check RoHS compliance status if environmental regulations apply to your assembly process. Ensure the datasheet version aligns with your design specifications regarding electrical characteristics.

Selection Notes

Select this component when galvanic isolation is required between circuit sections. It is suitable for applications needing compatibility with standard TTL logic families. Consider the isolation voltage rating for safety-critical designs. Evaluate the switching speed requirements against the device's response time capabilities.

Part Context

This part belongs to the family of single-channel phototransistor optocouplers. It serves as a fundamental building block for creating isolated signal paths in electronic systems. The device integrates an infrared emitting diode and a silicon phototransistor within a single package.