ACPL-M61T-500E

Overview

The ACPL-M61T-500E is a single-channel logic output optocoupler from Broadcom. It features an open collector, Schottky-clamped phototransistor output and operates at data rates up to 10 MBd. The device provides 4000 Vrms isolation voltage and exhibits a common-mode transient immunity of 15 kV/µs. Electrical characteristics include a typical forward voltage of 1.85 V, maximum forward current of 10 mA, and propagation delays of 24 ns rise and 10 ns fall times. It functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates Schottky clamping on the output to minimize storage time and enhance switching speed.
• Provides high common-mode transient immunity for reliable operation in noisy environments.
• Offers robust electrical isolation between input and output circuits.

Applications

• Industrial automation control systems
• Power supply feedback loops
• Communication interface isolation

Procurement Notes

Verify the specific suffix 'T' confirms tape-and-reel packaging requirements against your assembly line specifications. Confirm that the 4000 Vrms isolation rating meets your safety certification standards. Ensure the 10 mA maximum forward current aligns with your drive circuit capabilities. Validate the 5-SO package dimensions for PCB footprint compatibility.

Selection Notes

Select this component when high-speed digital isolation is required alongside moderate current sinking capability. The open-collector output allows for flexible pull-up voltage selection. Consider the 15 kV/µs CMTI rating for applications with rapid voltage transients. Compare against the ACPL-M61M variant if push-pull output topology is preferred over open-collector.

Part Context

This part belongs to the ACPL-M61 series of high-speed optocouplers designed for demanding industrial and commercial applications. The series emphasizes signal integrity through advanced internal circuitry. The M61T variant specifically utilizes a 5-pin SOIC package to balance performance with compact board space requirements.

Replacement Considerations

The ACPL-M61M-500E is a confirmed substitute within the same family, offering identical isolation and speed but with a push-pull output instead of open-collector. Verify pinout compatibility before substitution.