TLP185(E)

Overview

The TLP185(E) is a single-channel phototransistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It provides electrical isolation between input and output circuits with a rated insulation voltage of 3750 Vrms. The device features a maximum collector-emitter voltage of 80V and a maximum collector current of 50mA. Key electrical parameters include a forward voltage of 1.4V, a minimum current transfer ratio (CTR) of 50%, and a maximum CTR of 400%. Typical switching times are 2μs for rise time and 3μs for fall time. It operates within a temperature range of -55°C to +110°C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits
• Features a phototransistor output capable of driving moderate loads
• Offers fast switching performance with microsecond-level response times

Applications

• Industrial control system I/O interface isolation
• Feedback loop isolation in switching power supplies
• Microcontroller interfacing with high-voltage or noisy environments

Procurement Notes

Verify the specific suffix designation against official Toshiba documentation to confirm exact electrical characteristics, as variations exist within the TLP185 family. Confirm package type and reel/tube specifications required for your assembly process. Check for any product change notifications or lifecycle status updates directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a single channel of galvanic isolation is required with a phototransistor output. Ensure the application voltage does not exceed the 80V collector-emitter rating. Consider the current transfer ratio requirements for your specific load conditions. Verify that the operating temperature range meets the environmental demands of the target system.

Part Context

This component belongs to the TLP185 series of transistor output optocouplers designed for general-purpose isolation applications. The series offers various packaging options and current transfer ratio grades to suit different design needs. It is widely used in consumer electronics, industrial equipment, and communication devices requiring reliable signal transmission across isolated boundaries.

Replacement Considerations

Consult official Toshiba documentation for confirmed substitute part numbers. Generic equivalents may not match the specific insulation voltage or current transfer ratio characteristics.