TLP127(OME-TPR,F) Equivalent & Substitute Parts

Part Overview

The TLP127(OME-TPR,F) is a single-channel optoisolator with Darlington output manufactured by Toshiba Semiconductor and Storage. This component provides 2500Vrms isolation voltage and is designed for DC input applications requiring galvanic isolation. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

TLP127(OME-TPR,F)

Toshiba Semiconductor and StorageIn Stock: 761TLP127(OME-TPR,F) Datasheet

Current PartRFQ

TLP187(TPR,E

Toshiba Semiconductor and StorageIn Stock: 3734TLP187(TPR,E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

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

• Single-channel configuration
• Darlington output topology
• Minimum 2500Vrms isolation voltage capability
• 1000% minimum current transfer ratio at 1mA
• 150mA maximum output current per channel
• 300V maximum output voltage
• DC input type
• Surface mount technology
• Operating temperature range compatibility

The TLP187(TPR,E) qualifies as a direct substitute based on these parameters. While it offers enhanced isolation voltage (3750Vrms) and extended operating temperature range (-55°C ~ 110°C), all critical electrical and mechanical specifications meet or exceed the requirements of the original component.

Parameter Comparison

Engineering Selection Recommendations

The TLP187(TPR,E) is the qualified substitute for the obsolete TLP127(OME-TPR,F). Selection is supported by the following factors:

• All critical electrical parameters match or exceed the original specification
• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance of the substitute meets current environmental regulations
• Enhanced isolation voltage provides additional design margin
• Extended operating temperature range accommodates broader application requirements

Package form factor differs between the two components. The TLP127(OME-TPR,F) uses 6-SMD (4 Leads) Gull Wing packaging, while the TLP187(TPR,E) uses 6-SOIC (0.173", 4.40mm Width) packaging. PCB layout and footprint modifications are required for implementation of the substitute component.

Frequently Asked Questions (FAQ)

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

A: Electrical substitution is valid. All critical parameters—isolation voltage, current transfer ratio, output current, and timing characteristics—are compatible. However, the different package form factor (6-SMD Gull Wing versus 6-SOIC) requires PCB footprint redesign and layout adjustment.

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

A: The TLP187(TPR,E) provides 3750Vrms isolation compared to 2500Vrms in the original part. This represents a 50% increase in isolation capability and provides additional design margin for high-voltage isolation applications without compromising compatibility.

Q: Does the extended operating temperature range of the TLP187(TPR,E) affect substitution suitability?

A: The TLP187(TPR,E) operates from -55°C to 110°C, extending the upper limit by 10°C compared to the TLP127(OME-TPR,F) range of -55°C to 100°C. This enhancement does not create incompatibility and supports applications requiring broader temperature operation.

Q: What packaging considerations apply when implementing the TLP187(TPR,E) substitute?

A: The TLP187(TPR,E) uses 6-SOIC packaging with 0.173" width and 4 leads, differing from the original 6-SMD Gull Wing package. PCB footprint, land pattern, and assembly process parameters must be updated accordingly. Pin configuration remains compatible at the functional level.

Q: Is the TLP187(TPR,E) available in the same packaging format as the original part?

A: No. The TLP187(TPR,E) is supplied in 6-SOIC packaging, while the TLP127(OME-TPR,F) was available in 6-SMD Gull Wing format. The substitute requires PCB redesign to accommodate the different package geometry.

Q: What compliance advantages does the TLP187(TPR,E) offer?

A: The TLP187(TPR,E) is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The original TLP127(OME-TPR,F) compliance status is not specified in available documentation.