6N137-500E

Overview

The 6N137-500E is a single-channel high-speed optocoupler manufactured by Broadcom Limited. It features a GaAsP LED input and an integrated high-gain photodetector with an open collector Schottky-clamped output. The device supports data rates up to 10 Mb/s with typical propagation delays of 75 ns, rise times of 24 ns, and fall times of 10 ns. It provides an isolation voltage of 3750 Vrms and a common-mode transient immunity of 15 kV/µs at Vcm=1000V. Operating parameters include a forward current of 20 mA max, output current of 50 mA, and supply voltage range of 4.5V to 5.5V. It operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a GaAsP light emitting diode with a high-gain photodetector for efficient signal transmission.
• Features an open collector output structure with Schottky clamping to prevent saturation and ensure fast switching.
• Provides high common-mode transient immunity through internal shielding design.

Applications

• Digital isolation in microprocessor-based systems
• Switching power supply control circuits
• Motor drive interface circuits

Procurement Notes

Verify the specific datasheet revision and package marking against the manufacturer's official documentation before procurement. Confirm that the 8-pin PDIP or SMD variant matches the intended PCB footprint. Ensure compliance with RoHS directives as specified in the product environmental classification. Cross-reference the part number suffix to confirm the exact insulation voltage rating and packaging type required for the application.

Selection Notes

Select this component when high-speed digital isolation is required between logic levels. The open collector output necessitates an external pull-up resistor; verify the resistor value aligns with the desired speed and voltage level. Ensure the input current does not exceed the maximum rating to maintain longevity. Consider the thermal dissipation limits if operating near the upper temperature boundary.

Part Context

This device belongs to the 6N137 series of high-speed optocouplers designed for robust digital signal isolation. It is engineered to replace slower optocouplers in applications requiring faster data throughput. The series is widely recognized for its compatibility with TTL and LSTTL logic families, providing reliable performance in noisy industrial environments.

Replacement Considerations

HCNW137-500E