LTV-814S-TA1-A

Transistor, Photovoltaic Output Optoisolators Overview

The LTV-814S-TA1-A is a single-channel transistor output optocoupler manufactured by Lite-On Inc. It features an NPN phototransistor output with a maximum collector-emitter voltage of 35 V and a collector current rating of 50 mA. The device provides 5000 Vrms isolation voltage and operates within a temperature range of -30°C to 110°C. Key electrical parameters include a forward voltage of 1.2 V, a power dissipation of 200 mW, and a typical rise/fall time of 4 µs / 3 µs. The current transfer ratio ranges from 20% to 300%. It is supplied in a 4-SMD鸥翼 (gull-wing) surface-mount package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using optical transmission.
• Utilizes an NPN phototransistor output stage for digital signal switching applications.
• Designed for surface-mount assembly with gull-wing lead configuration.

Transistor, Photovoltaic Output Optoisolators Applications

• Digital signal isolation in microprocessor systems
• Switching power supply feedback loops
• Solid-state relay driver circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'TA1' corresponds to the required tape-and-reel packaging format rather than tube or cut-tape options. Confirm RoHS compliance status as indicated in official datasheets. Ensure the ordering part number matches the exact pinout and package dimensions required for the target PCB footprint. Cross-reference manufacturer documentation for any recent changes in certification or material composition.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel transistor output is required for low-speed digital isolation. The 5000 Vrms isolation rating suits general industrial applications. Verify that the 35 V collector-emitter voltage and 50 mA current limits meet the load requirements. Consider the 4 µs propagation delay if timing constraints are critical compared to faster logic gate outputs.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the LTV-814 series of transistor output optocouplers from Lite-On. The series includes variations such as LTV-814S and LTV-814S-TP, differing primarily in packaging and reel specifications. The LTV-814S-TA1 variant specifically denotes the 1-channel type with tape-and-reel packaging suitable for automated surface-mount placement processes.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The HCPL-814-50AE from Broadcom Limited is listed as a similar replacement option. Verify pin compatibility and electrical parameter equivalence before substitution.

Transistor, Photovoltaic Output Optoisolators FAQ

What is the maximum isolation voltage of the LTV-814S-TA1-A?

The device supports an isolation voltage of 5000 Vrms.

Does the LTV-814S-TA1-A support AC input signals?

Yes, the input section accepts both AC and DC signals.