SM4F48A-TP Equivalent & Substitute Parts

Part Overview

The SM4F48A-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose transient voltage protection applications. This surface-mount component operates with a 48V reverse standoff voltage and provides 77.4V maximum clamping voltage at peak pulse current. The part is currently in active production status and carries ROHS3 compliance certification. Substitute parts are identified when equivalent electrical performance parameters and mechanical compatibility requirements are met within the same product category.

Substiute Parts

SM4F48A-TP

Micro Commercial CoIn Stock: 1002SM4F48A-TP Datasheet

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SMF48A

MeritekIn Stock: 22729SMF48A Datasheet

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SMF48A-T13

Littelfuse Inc.In Stock: 19727SMF48A-T13 Datasheet

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TV02W480-G

Comchip TechnologyIn Stock: 15323TV02W480-G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SM4F48A-TP are qualified based on the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 48V
• Voltage - Breakdown (Min): 53.3V
• Voltage - Clamping (Max) @ Ipp: 77.4V
• Unidirectional channel configuration (1 channel)
• Surface mount technology
• Operating temperature range: -55°C to 150°C
• RoHS3 compliance
• Zener diode type classification

All identified substitute parts maintain identical voltage specifications and thermal operating range. Variations in peak pulse current (Ipp) and power dissipation do not disqualify substitution when the clamping voltage and standoff voltage parameters remain constant, as these reflect different device geometries within the same electrical class. Package variations (SOD-123F vs SOD-123) are mechanically compatible for standard PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain active production status and ROHS3 compliance certification, meeting regulatory requirements equivalent to the SM4F48A-TP. The primary distinction among substitute options relates to peak pulse current and power dissipation ratings. The SM4F48A-TP provides 5.2A peak pulse current and 400W power dissipation, while substitute parts (SMF48A, SMF48A-T13, TV02W480-G) provide 2.58A to 2.6A peak pulse current and 200W power dissipation. Selection between the main part and substitutes depends on application-specific transient energy requirements. All parts share identical voltage protection parameters (48V standoff, 77.4V clamping), ensuring equivalent circuit protection performance in applications where peak pulse current does not exceed substitute part ratings. Package compatibility across SOD-123F and SOD-123 variants is maintained for standard surface-mount PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can SMF48A replace SM4F48A-TP in my circuit?

A: Yes, if your application's transient pulse current does not exceed 2.58A. Both parts provide identical voltage protection at 48V standoff and 77.4V clamping. The primary difference is peak pulse current capacity (5.2A vs 2.58A) and power dissipation (400W vs 200W).

Q: What is the difference between SOD-123F and SOD-123 packages?

A: Both are surface-mount packages with compatible PCB footprints for standard assembly processes. SOD-123F and SOD-123 variants are mechanically interchangeable in typical circuit board layouts.

Q: Are all substitute parts RoHS compliant?

A: Yes. SM4F48A-TP, SMF48A, SMF48A-T13, and TV02W480-G all carry ROHS3 compliance certification.

Q: Which substitute part should I choose if I need maximum availability?

A: SMF48A (Meritek) offers 22,648 pieces in stock, providing the highest inventory availability among substitute options.

Q: Do substitute parts have the same operating temperature range?

A: Yes. All parts operate across -55°C to 150°C junction temperature range, ensuring thermal compatibility in equivalent applications.

Q: Can I use TV02W480-G as a direct replacement?

A: Yes, provided your circuit tolerates 2.58A peak pulse current. Voltage protection parameters are identical to SM4F48A-TP. The SOD-123 package is mechanically compatible with standard surface-mount assembly.