SMA6F5.0A-TP Equivalent & Substitute Parts

Part Overview

The SMA6F5.0A-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection applications. This component features a 5V reverse standoff voltage with a 9.2V maximum clamping voltage and 68A peak pulse current capability in a surface-mount DO-221AC (SMA Flat Leads) package. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

SMA6F5.0A-TP

Micro Commercial CoIn Stock: 1127SMA6F5.0A-TP Datasheet

Current PartRFQ

SMA6J5.0AFL-TP

Micro Commercial CoIn Stock: 16721SMA6J5.0AFL-TP Datasheet

MFR RecommendedRFQ

SM4T6V7AY

STMicroelectronicsIn Stock: 2494SM4T6V7AY Datasheet

SimilarRFQ

SMA6J5.0A-TR

STMicroelectronicsIn Stock: 29049SMA6J5.0A-TR Datasheet

SimilarRFQ

SMA6L5.0A

Littelfuse Inc.In Stock: 92498SMA6L5.0A Datasheet

SimilarRFQ

SMAJ5.0A-TR

STMicroelectronicsIn Stock: 100175SMAJ5.0A-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMA6F5.0A-TP is determined by strict alignment of electrical parameters and mechanical compatibility. The critical substitution criteria are:

Electrical Parameters (Must Match or Exceed):

• Voltage - Reverse Standoff: 5V (exact match required)
• Voltage - Breakdown (Min): 6.4V (exact match required)
• Voltage - Clamping (Max) @ Ipp: 9.2V or lower (equal or superior clamping performance)
• Current - Peak Pulse: 68A or higher (equal or superior current handling)
• Power - Peak Pulse: 600W or higher (equal or superior power dissipation)

Mechanical Parameters (Must Match):

• Package / Case: DO-221AC, SMA Flat Leads (physical and electrical footprint compatibility)
• Mounting Type: Surface Mount (assembly process compatibility)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (regulatory requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (handling and storage compatibility)

Substitute parts are grouped into two categories: MFR Recommended (direct replacement from original manufacturer) and Similar (alternative manufacturers meeting all electrical and mechanical criteria).

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SMA6J5.0AFL-TP

The SMA6J5.0AFL-TP is the manufacturer-recommended direct replacement for the obsolete SMA6F5.0A-TP. Both parts are manufactured by Micro Commercial Co and share identical electrical specifications: 5V reverse standoff voltage, 6.4V minimum breakdown voltage, 9.2V maximum clamping voltage, and 600W peak pulse power rating. The SMA6J5.0AFL-TP maintains active product status with 16,698 units in stock. The primary electrical difference is a marginal reduction in peak pulse current from 68A to 65.2A, which remains within acceptable tolerance for general-purpose overvoltage protection applications. Both parts utilize the DO-221AC (SMA Flat Leads) package, ensuring mechanical and electrical footprint compatibility. The SMA6J5.0AFL-TP is supplied in Tape & Reel packaging and is ROHS3 compliant with MSL 1 rating.

Secondary Recommendations: SMA6L5.0A

The SMA6L5.0A, manufactured by Littelfuse Inc., provides an alternative from a different supplier while maintaining identical electrical performance to the original part. This part features the same 5V reverse standoff voltage, 6.4V minimum breakdown voltage, 9.2V maximum clamping voltage, and 600W peak pulse power rating. The peak pulse current specification is 65.3A, comparable to the SMA6J5.0AFL-TP. The SMA6L5.0A uses the DO-221AC (SMA Flat Leads) package and is supplied in Tape & Reel format with 92,400 units in stock. This part is ROHS3 compliant with MSL 1 rating and extends the lower operating temperature limit to -65°C.

Alternative Considerations: SM4T6V7AY, SMA6J5.0A-TR, SMAJ5.0A-TR

The parts SM4T6V7AY, SMA6J5.0A-TR, and SMAJ5.0A-TR are manufactured by STMicroelectronics and feature higher clamping voltages (13.4V) and significantly higher peak pulse currents (174A to 298A). These parts utilize the DO-214AC (SMA) package rather than the DO-221AC (SMA Flat Leads) package of the original part. While these alternatives provide superior electrical performance characteristics, the package difference (DO-214AC versus DO-221AC) requires PCB layout verification and may necessitate design modifications. These parts are suitable only when the application circuit can accommodate the different package footprint and when the higher clamping voltage and current ratings are acceptable for the protection scheme.

Frequently Asked Questions (FAQ)

Q: Can SMA6J5.0AFL-TP directly replace SMA6F5.0A-TP without PCB modifications?

A: Yes. The SMA6J5.0AFL-TP is the manufacturer-recommended replacement and shares the identical DO-221AC (SMA Flat Leads) package footprint. No PCB layout modifications are required. The electrical specifications are equivalent, with the peak pulse current specification (65.2A versus 68A) representing a negligible difference for general-purpose applications.

Q: What is the difference between DO-221AC and DO-214AC packages?

A: DO-221AC (SMA Flat Leads) and DO-214AC (SMA) are distinct surface-mount packages with different physical dimensions and lead configurations. Parts using DO-214AC packages (SM4T6V7AY, SMA6J5.0A-TR, SMAJ5.0A-TR) cannot be directly substituted for DO-221AC parts without PCB redesign. Verify package compatibility before selection.

Q: Why do some substitute parts have higher clamping voltages (13.4V) than the original (9.2V)?

A: Higher clamping voltages indicate different protection characteristics. Parts with 13.4V clamping voltages (SM4T6V7AY, SMA6J5.0A-TR, SMAJ5.0A-TR) provide less aggressive voltage suppression. These are suitable only when the application circuit design permits higher transient voltages. For direct functional replacement, select parts with 9.2V clamping voltage (SMA6J5.0AFL-TP or SMA6L5.0A).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of the original SMA6F5.0A-TP.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging is supplied on continuous reels suitable for automated pick-and-place assembly. Cut Tape & Digi-Reel packaging is supplied in shorter tape segments or alternative reel formats. Both are surface-mount compatible; selection depends on assembly equipment and volume requirements.

Q: Can SMA6L5.0A be used in applications requiring the full -55°C to 175°C temperature range?

A: The SMA6L5.0A operating temperature range is -65°C to 150°C (TJ), which does not extend to the original part's upper limit of 175°C. Verify application temperature requirements before selection. For applications requiring the full 175°C upper limit, use SMA6J5.0A-TR, which specifies -55°C to 175°C (TJ).