TLP185(BLL-TPR,E)

Overview

The TLP185(BLL-TPR,E) is a single-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It integrates an AlGaAs infrared LED with an NPN phototransistor in a compact SO-6 surface-mount package. The device provides high isolation voltage of 3750Vrms, ensuring reliable signal transmission across isolated circuits. Key electrical parameters include a collector-emitter voltage of 80V, maximum forward current of 50mA, and a minimum current transfer ratio of 50%. Operating temperature range spans from -55°C to +110°C, supporting diverse industrial environments.

Feature Summary

• High isolation voltage capability for safe circuit separation
• Compact surface-mount packaging for automated assembly
• Wide operating temperature range for industrial reliability
• Integrated infrared LED and NPN phototransistor design

Applications

• Programmable logic controller input modules
• AC/DC input interface circuits
• Telecommunications equipment signal isolation
• Office automation device control interfaces

Procurement Notes

Verify the specific suffix (BLL-TPR,E) against official Toshiba documentation to confirm exact binning and packaging configuration. Ensure compliance with RoHS directives and check for any product change notifications affecting this variant. Confirm availability status as some variants may be subject to lifecycle changes or discontinuation notices.

Selection Notes

Select this component when high isolation voltage and compact form factor are required for DC input applications. Consider the current transfer ratio specifications and switching speed characteristics relative to the target circuit requirements. Verify that the SO-6 package dimensions align with the PCB layout constraints and thermal management needs of the final design.

Part Context

This part belongs to the TLP185 series of small flat couplers designed for surface mounting. The series offers various isolation voltage ratings and CTR bins to suit different application needs. The TLP185 family is widely used in industrial and consumer electronics for signal isolation between microcontrollers and power stages.

Replacement Considerations

Direct substitutes include other Toshiba TLP185 variants with matching isolation and pinout, such as TLP185(GB-TPL,E). Cross-brand replacements require verification of pin compatibility, isolation voltage ratings, and current transfer ratios to ensure functional equivalence.