QTH217T1

$0.43

Description：OPTOISO 3.75KV TRANS 4-MINI-FLAT
Series：Optocoupler
Mfr：QT Brightek (QTB)
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:1c58f482f81a Category: Transistor, Photovoltaic Output Optoisolators Brand: QT Brightek (QTB)

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Product introduction

Product Detailed Parameters

Description：OPTOISO 3.75KV TRANS 4-MINI-FLAT
Series：Optocoupler
Mfr：QT Brightek (QTB)
Package：Tape & Reel (TR),Cut Tape (CT)
Number of Channels：1
Voltage - Isolation：3750Vrms
Current Transfer Ratio (Min)：50% @ 5mA
Current Transfer Ratio (Max)：600% @ 5mA
Turn On / Turn Off Time (Typ)：-
Rise / Fall Time (Typ)：6µs, 8µs
Input Type：DC
Output Type：Transistor
Voltage - Output (Max)：80V
Current - Output / Channel：50mA
Voltage - Forward (Vf) (Typ)：1.24V
Current - DC Forward (If) (Max)：50 mA
Vce Saturation (Max)：200mV
Operating Temperature：-55°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：4-SOIC (0.173", 4.40mm Width)
Supplier Device Package：4-Mini-Flat
Grade：-
Qualification：-

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QTH217T1

Overview

The QTH217T1 is a photovoltaic output optoisolator manufactured by QT Brightek. It features a Mini-Flat package with four pins and provides an isolation voltage of 3750Vrms. The device operates within a temperature range of -55°C to 125°C. Key electrical specifications include a minimum current transfer ratio of 50% at 5mA input, a maximum CTR of 600%, and a maximum collector-emitter saturation voltage of 200mV. The output voltage rating is 80V.

Feature Summary

Photovoltaic output configuration for high isolation
Mini-Flat surface mount packaging
Wide operating temperature range

Applications

Industrial control systems
Power supply feedback loops
Signal isolation in measurement equipment

Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturers may update pinout definitions or mechanical dimensions over time. Confirm that the Mini-Flat package footprint matches your PCB design requirements precisely. Ensure the selected component meets the required isolation voltage standards for your specific application safety regulations.

Selection Notes

Select this component when high isolation voltage is required with a compact form factor. The photovoltaic output type offers distinct advantages for zero-drift applications compared to transistor outputs. Consider the wide temperature range suitability for harsh environments. Evaluate the current transfer ratio requirements against your circuit's sensitivity needs.

Part Context

This part belongs to QT Brightek's optocoupler portfolio, which includes various LED displays and discrete LEDs. The Mini-Flat package allows for space-efficient designs in modern electronics. QT Brightek specializes in optoelectronics, providing components for both consumer and industrial markets.

Replacement Considerations

Check for direct substitutes from other manufacturers offering similar photovoltaic output characteristics and Mini-Flat packages. Verify compatibility regarding isolation voltage ratings and physical dimensions before substitution.