TLP281-4(TP,J,F)

Transistor, Photovoltaic Output Optoisolators Overview

The TLP281-4(TP,J,F) is a four-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It integrates an infrared emitting diode with a phototransistor for each channel, providing electrical isolation between input and output circuits. The device features a 16-SOP surface-mount package with a lead pitch of 1.27 mm. Key electrical specifications include a collector-emitter voltage of 80 V minimum, an isolation voltage of 2500 Vrms, and a forward current rating of 50 mA. The current transfer ratio ranges from 50% to 600%, depending on the specific rank classification. Operating temperatures span from -55°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four independent channels provide simultaneous signal isolation within a compact footprint.
• High insulation voltage ensures reliable separation between low-voltage control logic and high-voltage power circuits.
• Surface-mount SOP-16 packaging facilitates automated assembly in space-constrained designs.
• Fast switching characteristics support efficient data transmission in digital communication interfaces.

Transistor, Photovoltaic Output Optoisolators Applications

• Programmable controller AC/DC input modules
• PCMCIA fax modems
• Data communication equipment

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designations (TP, J, F) against the manufacturer's datasheet to confirm the exact current transfer ratio rank and packaging configuration. Ensure that the requested variant matches the required isolation standards and thermal ratings for the target application environment. Cross-reference official Toshiba documentation to validate component authenticity and compliance with specified electrical limits before integration into production systems.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multi-channel isolation is required in small form-factor applications. Consider the current transfer ratio requirements and operating temperature range during circuit design. Ensure that the input forward current does not exceed maximum ratings to maintain longevity. Evaluate the package dimensions against PCB layout constraints to ensure proper mechanical fit and thermal dissipation capabilities for the intended operational conditions.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP281 series of photocouplers, which are designed for general-purpose isolation tasks. The series utilizes gallium arsenide infrared LEDs coupled with silicon phototransistors. The TLP281-4 variant specifically offers four channels in a single package, distinguishing it from single-channel counterparts like the TLP281. This configuration reduces board space and simplifies routing in complex digital systems requiring multiple isolated signals.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers: IS281-4

Transistor, Photovoltaic Output Optoisolators FAQ

What is the minimum isolation voltage for the TLP281-4(TP,J,F)?

The device provides a minimum isolation voltage of 2500 Vrms.

Does the TLP281-4 support surface-mount technology?

Yes, it is available in a 16-SOP surface-mount package with a 1.27 mm lead pitch.