4N28S-TA1

Description：OPTOISO 0.5KV TRANS W/BASE 6-SMD
Series：4N2X
Mfr：Lite-On Inc.
Package：Tape & Reel (TR)

SKU:e41716c6b4ce Category: Transistor, Photovoltaic Output Optoisolators Brand: Lite-On Inc.

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Product introduction

Product Detailed Parameters

Description：OPTOISO 0.5KV TRANS W/BASE 6-SMD
Series：4N2X
Mfr：Lite-On Inc.
Package：Tape & Reel (TR)
Number of Channels：1
Voltage - Isolation：500Vrms
Current Transfer Ratio (Min)：10% @ 10mA
Current Transfer Ratio (Max)：-
Turn On / Turn Off Time (Typ)：-
Rise / Fall Time (Typ)：3µs, 3µs
Input Type：DC
Output Type：Transistor with Base
Voltage - Output (Max)：30V
Current - Output / Channel：100mA
Voltage - Forward (Vf) (Typ)：1.2V
Current - DC Forward (If) (Max)：80 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
Grade：-
Qualification：-

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4N28S-TA1

Overview

The Lite-On 4N28S-TA1 is a general-purpose NPN phototransistor output optocoupler in a SMD/SMT PDIP-6 gull wing package. It features an isolation voltage of 500 Vrms and a minimum current transfer ratio of 10%. The device supports a maximum forward current of 80 mA with a forward voltage of 1.5 V. Electrical characteristics include a maximum collector-emitter voltage of 30 V, a maximum collector current of 100 mA, and a collector-emitter saturation voltage of 500 mV. Switching performance is defined by rise and fall times of 3 µs each.

Feature Summary

Provides electrical isolation between input and output circuits using an NPN phototransistor architecture.
Designed for reliable signal transmission in general electronic applications requiring DC input interfaces.

Applications

I/O interfaces for computers
System appliances
Measuring instruments

Procurement Notes

Verify the specific suffix TA1 to confirm surface-mount packaging and reel distribution. Ensure the required isolation voltage and current transfer ratio meet circuit design specifications. Cross-reference datasheet parameters for thermal management and operating temperature ranges before integration.

Selection Notes

Select this component for applications requiring standard switching speeds and moderate isolation requirements. Compare against other 4N28 variants if through-hole mounting or different CTR grades are needed. Confirm that the 30 V collector-emitter voltage rating aligns with load conditions.

Part Context

This part belongs to the Lite-On 4N28 series of general-purpose photocouplers. It shares functional similarities with the 4N27 and 4N28M but differs in packaging and specific electrical tolerances. The TA1 suffix indicates a specific tape-and-reel configuration for automated assembly.