4N253S

Description：OPTOISO 5.3KV TRANS W/BASE 6-SMD
Series：-
Mfr：onsemi
Package：Tube

SKU:47e3a786c5ea Category: Transistor, Photovoltaic Output Optoisolators Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：OPTOISO 5.3KV TRANS W/BASE 6-SMD
Series：-
Mfr：onsemi
Package：Tube
Number of Channels：1
Voltage - Isolation：5300Vrms
Current Transfer Ratio (Min)：20% @ 10mA
Current Transfer Ratio (Max)：-
Turn On / Turn Off Time (Typ)：2µs, 2µs
Rise / Fall Time (Typ)：-
Input Type：DC
Output Type：Transistor with Base
Voltage - Output (Max)：30V
Current - Output / Channel：-
Voltage - Forward (Vf) (Typ)：1.18V
Current - DC Forward (If) (Max)：100 mA
Vce Saturation (Max)：500mV
Operating Temperature：-55°C ~ 100°C
Mounting Type：Surface Mount
Package / Case：6-SMD, Gull Wing
Supplier Device Package：6-SMD

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4N253S

Overview

The onsemi 4N253S is a single-channel phototransistor output optocoupler designed for surface-mount applications. It features a 6-SMD package and provides an isolation voltage of 5300 Vrms. The device incorporates an NPN phototransistor with a base terminal for enhanced switching speed control. Key electrical specifications include a maximum collector-emitter voltage of 30 V, a forward current rating of 100 mA, and a typical rise/fall time of 2 μs. It operates within a temperature range of -55°C to +100°C.

Feature Summary

Integrates a phototransistor with a dedicated base pin to facilitate faster turn-off times compared to standard configurations.
Provides high-voltage electrical isolation between input and output circuits via a robust dielectric barrier.
Utilizes a compact surface-mount DIP-style footprint suitable for automated assembly processes.

Applications

Industrial control systems requiring signal isolation
Solid-state relay driver circuits
Microcontroller interface isolation

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and performance variant. Check for obsolescence status as this part may be discontinued. Request original datasheets and certification documents prior to purchase to ensure compliance with project specifications.

Selection Notes

Select this component when surface-mount isolation is required with improved switching speed due to the base pin. Ensure the 30 V collector-emitter voltage meets the load requirements. Verify that the 5300 Vrms isolation rating satisfies safety standards for the application environment. Consider thermal management capabilities within the specified operating temperature range.

Part Context

The 4N253S belongs to the 4N25 series of optocouplers from onsemi. This series is widely recognized for general-purpose isolation tasks. The 4N253S specifically offers a surface-mount variant with a base-connected phototransistor, distinguishing it from through-hole versions like the 4N25M.