LTV-352T

Transistor, Photovoltaic Output Optoisolators Overview

The LTV-352T is a single-channel transistor output optocoupler manufactured by Lite-On Inc., featuring a photodarlington output configuration. It utilizes a compact SOP-4 surface-mount package with a 2.0mm body width, designated as Mini-Flat. The device provides high isolation capability with an insulation voltage of 3750 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 300V and a maximum collector current of 150mA. The forward current rating is 50mA, with a typical forward voltage of 1.2V. The current transfer ratio ranges from 1000% to 5000%. Saturation voltage is limited to 1.2V maximum. Switching characteristics include a rise time of 100µs and a fall time of 20µs. The component operates within a temperature range of -55°C to +110°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High current transfer ratio for efficient signal transmission
• Compact Mini-Flat SOP-4 package design
• High input-output isolation voltage capability
• Photodarlington output structure

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial signal isolation
• Power supply feedback circuits
• Solid-state relay driver interfaces

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation when ordering, as variants such as LTV-352T-A or LTV-352T-B may exist with different reverse voltage or packaging specifications. Confirm that the required current transfer ratio bin matches the application needs, as the standard part covers a wide range. Ensure the SOP-4 footprint aligns with the PCB layout constraints. Check RoHS compliance status if environmental regulations apply to the final assembly. Cross-reference the datasheet revision date to ensure all electrical limits are current.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high gain is required in a small form factor. The photodarlington output offers higher sensitivity compared to standard transistor outputs but exhibits slower switching speeds. Evaluate the thermal dissipation requirements, as power dissipation is typically rated at 150mW. Consider the 300V collector-emitter voltage limit for load switching applications. Compare against faster optocouplers if propagation delay exceeds system timing budgets. Verify compatibility with control logic levels due to the forward voltage drop.

Transistor, Photovoltaic Output Optoisolators Part Context

The LTV-352T belongs to the LTV-352 series of optocouplers produced by Lite-On Inc. This series focuses on providing high current transfer ratios in miniature packages suitable for space-constrained designs. Related models include variations like LTV-352T-A and LTV-352T-B, which may differ in specific electrical tolerances or packaging options. The component is part of a broader family of transistor-output isolators designed for general-purpose isolation tasks.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers include PC452J00000F from Sharp/Socle Technology, which shares similar Darlington output and isolation characteristics.