4N26S

$0.34

Description：OPTOISO 1.5KV TRANS W/BASE 6-SMD
Series：4N2X
Mfr：Lite-On Inc.
Package：Tube

SKU:e2155d01d384 Category: Transistor, Photovoltaic Output Optoisolators Brand: Lite-On Inc.

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Product introduction

Product Detailed Parameters

Description：OPTOISO 1.5KV TRANS W/BASE 6-SMD
Series：4N2X
Mfr：Lite-On Inc.
Package：Tube
Number of Channels：1
Voltage - Isolation：1500Vrms
Current Transfer Ratio (Min)：20% @ 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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4N26S

Overview

The Lite-On 4N26S is a single-channel transistor output optocoupler designed for surface-mount applications. It features an NPN phototransistor output with a base connection, providing electrical isolation between input and output circuits. The device supports a maximum collector-emitter voltage of 30V and a peak forward current of 80mA. It offers a minimum current transfer ratio of 20% at a forward current of 10mA. The component is housed in a 6-pin SMD package and operates within a temperature range of -55°C to +110°C.

Feature Summary

Provides high-voltage electrical isolation between input LED and output phototransistor
Includes base terminal on the phototransistor for improved switching speed control
Compliant with RoHS standards and lead-free manufacturing processes

Applications

Signal isolation in industrial control systems
Interface circuits for microprocessors and logic devices
Power supply feedback loops

Procurement Notes

Verify that the specific order matches the 4N26S variant rather than the 4N25 or 4N27 series, as isolation voltages differ significantly. Confirm the package type is surface-mount (SMD) and not through-hole. Ensure the supplier provides documentation confirming UL and VDE approvals if safety certification is required for the end application. Check for the presence of the base pin configuration which distinguishes it from standard variants.

Selection Notes

Select this component when a surface-mount footprint is required for signal isolation. The 4N26S is suitable for applications needing moderate switching speeds where base drive capability is beneficial. Compare against the 4N25 series if higher isolation voltage (2500Vrms) is necessary, noting that the 4N26S provides 1500Vrms. Consider thermal management requirements given the operating temperature range up to 110°C.

Part Context

The 4N26S belongs to the broader 4N2x family of transistor output optocouplers manufactured by Lite-On. This family includes various packages and isolation ratings. The 'S' suffix typically denotes the surface-mount package style. It shares functional similarities with other industry-standard single-channel optocouplers but is distinct in its specific pinout and isolation characteristics defined by Lite-On.