TLP185(GRH,SE

Overview

The TLP185(GRH,SE is a single-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It integrates an aluminum gallium arsenide infrared emitting diode optically coupled to a phototransistor within a compact 6-SOP surface-mount package. The device provides high isolation voltage of 3750Vrms and supports a maximum collector-emitter voltage of 80V with a collector current capacity of 50mA. Key electrical parameters include a minimum current transfer ratio of 150% at 5mA input, typical rise and fall times of 2µs and 3µs respectively, and a forward voltage of approximately 1.25V. It operates reliably across a wide temperature range from -55°C to +110°C.

Feature Summary

• High isolation voltage capability of 3750Vrms for safe signal transmission between isolated circuits.
• Compact 6-SOP surface-mount package design suitable for space-constrained PCB layouts.
• Fast switching performance with typical rise time of 2µs and fall time of 3µs.
• Wide operating temperature range extending from -55°C to +110°C for robust environmental stability.

Applications

• Signal isolation in industrial automation control systems
• Input/output interface modules for programmable logic controllers
• Power supply feedback loops for voltage regulation
• Communication interface isolation in telecommunications equipment

Procurement Notes

Verify the specific suffix GRH against official Toshiba documentation to confirm exact binning and packaging configuration. Confirm RoHS compliance status and lead times directly with authorized distributors as availability fluctuates. Ensure the ordering part number matches the required tape-and-reel or cut-tape format specified in the datasheet to avoid assembly discrepancies.

Selection Notes

Select this component when high-speed digital isolation is required alongside standard transistor output characteristics. The 150% minimum CTR ensures reliable switching at low drive currents. Consider the 6-SOP footprint compatibility during PCB layout. Verify that the 80V Vceo rating meets the load requirements of the isolated side circuitry before finalizing the design.

Part Context

This device belongs to the TLP185 series of small flat couplers designed for surface mounting. It represents a general-purpose optocoupler solution offering a balance of speed, isolation strength, and physical size. The series is widely used in applications requiring galvanic isolation between microcontroller domains and higher voltage power stages.

Replacement Considerations

Direct replacements may include other Toshiba TLP185 variants such as TLP185(GB,SE or TLP185(GR,SE depending on specific CTR binning and packaging needs. Cross-manufacturer equivalents require careful verification of pinout, isolation voltage ratings, and switching speeds to ensure functional compatibility without redesigning the host circuit.