TLP127(MBS-TPL,F) Equivalent & Substitute Parts

Part Overview

The TLP127(MBS-TPL,F) is a photocoupler optoisolator with Darlington output manufactured by Toshiba Semiconductor and Storage. This component provides galvanic isolation up to 2500Vrms with a single channel configuration in a 6-MFSOP surface mount package. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

TLP127(MBS-TPL,F)

Toshiba Semiconductor and StorageIn Stock: 1179TLP127(MBS-TPL,F) Datasheet

Current PartRFQ

TLP187(TPL,E

Toshiba Semiconductor and StorageIn Stock: 2269TLP187(TPL,E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLP127(MBS-TPL,F) is determined by the following critical parameters:

• Single Channel Configuration: Both main and substitute parts maintain 1-channel architecture
• Darlington Output Stage: Output topology must remain Darlington type
• Isolation Voltage: Substitute must meet or exceed 2500Vrms isolation requirement
• Current Transfer Ratio: Minimum 1000% @ 1mA specification must be maintained
• Maximum Output Voltage: 300V rating must be supported
• Output Current Capability: 150mA per channel minimum requirement
• Surface Mount Technology: Package must be surface mount compatible
• Operating Temperature Range: Substitute must cover the specified temperature envelope

The TLP187(TPL,E) qualifies as a direct substitute based on these parameters while offering enhanced isolation voltage (3750Vrms) and extended temperature range (-55°C ~ 110°C).

Parameter Comparison

Engineering Selection Recommendations

The TLP187(TPL,E) is the qualified substitute for the obsolete TLP127(MBS-TPL,F). Selection is based on the following engineering criteria:

Product Status: The TLP187(TPL,E) maintains active product status with full manufacturer support, whereas the TLP127(MBS-TPL,F) is obsolete and subject to availability constraints.

Compliance & Certifications: The TLP187(TPL,E) is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components in most markets.

Electrical Compatibility: The substitute part exceeds the isolation voltage specification (3750Vrms vs. 2500Vrms) while maintaining identical current transfer ratio, output voltage, and output current ratings. The extended operating temperature range (-55°C ~ 110°C) provides additional thermal margin.

Package Consideration: The TLP187(TPL,E) uses a 6-SOIC package versus the 6-MFSOP gull wing package of the original part. PCB layout modifications are required to accommodate the different package footprint.

Frequently Asked Questions (FAQ)

Q: Can the TLP187(TPL,E) directly replace the TLP127(MBS-TPL,F) without circuit modifications?

A: Electrical parameters are compatible. However, the package footprint differs (6-SOIC vs. 6-MFSOP), requiring PCB layout changes. Verify pin assignment compatibility before implementation.

Q: What is the significance of the higher isolation voltage in the TLP187(TPL,E)?

A: The 3750Vrms isolation rating of the TLP187(TPL,E) exceeds the 2500Vrms requirement of the TLP127(MBS-TPL,F). This provides additional safety margin and is fully backward compatible for applications requiring the lower isolation voltage.

Q: Are there any thermal performance differences between these parts?

A: The TLP187(TPL,E) supports operation to 110°C versus 100°C for the TLP127(MBS-TPL,F). Both parts maintain identical Vce saturation and forward voltage characteristics within specified tolerances.

Q: What packaging formats are available for the TLP187(TPL,E)?

A: The TLP187(TPL,E) is supplied in Cut Tape (CT) and Digi-Reel® packaging options, supporting both manual and automated assembly processes.

Q: Is the TLP187(TPL,E) suitable for new designs?

A: Yes. The active product status, ROHS3 compliance, and enhanced electrical specifications make the TLP187(TPL,E) appropriate for new design implementations where the TLP127(MBS-TPL,F) is no longer available.