HCPL2531TVM

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL2531TVM is a dual-channel high-speed transistor output optocoupler manufactured by Fairchild Semiconductor. It features an aluminum gallium arsenide LED optically coupled to phototransistor outputs, providing electrical isolation between input and signal circuits. The device supports a nominal data rate of 1 MBps and offers a maximum isolation voltage of 5000 Vrms. It is housed in an 8-pin DIP package with through-hole mounting capabilities. Key electrical parameters include a maximum forward current of 25 mA, a maximum collector current of 8 mA, and a typical response time of 450 ns.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration for simultaneous signal transmission
• High-speed operation supporting 1 MBps data rates
• Robust electrical isolation up to 5000 Vrms
• Compatible with TTL and CMOS logic families

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial process control systems
• Power supply feedback loops
• Pulse transformer replacement applications
• Data communication interface isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the manufacturer origin carefully, as Fairchild Semiconductor's semiconductor division was acquired by onsemi. Ensure the specific part number suffix matches the required package type and lead-free status. Confirm availability status, as some variants may be subject to obsolescence or discontinuation notices from the current manufacturer. Cross-reference datasheets to ensure compliance with specific isolation and speed requirements for the target application.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation with high-speed digital signaling is required. Compare against single-channel alternatives like the HCPL-2631 if only one channel is needed. Consider the operating temperature range and insulation voltage ratings relative to the system's safety standards. Evaluate the package style constraints, specifically the through-hole DIP format, against PCB layout requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the HCPL-2531 family of high-speed optocouplers. It shares architectural similarities with the HCPL-2530 and HCPL-4502 but provides two isolated channels instead of one. The technology utilizes AlGaAs LEDs for efficient light emission, ensuring reliable performance across industrial temperature ranges. It serves as a direct replacement for older discrete isolation solutions in legacy designs.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The HCPL-2531SD is a surface-mount variant offering similar electrical characteristics in an SMD package. For single-channel applications, the HCPL-2631 provides equivalent speed and isolation in a reduced pin count. Verify pin compatibility and thermal dissipation requirements when substituting with these alternatives.