US5B-TP Equivalent & Substitute Parts

Part Overview

The US5B-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 100 V DC reverse voltage and 5 A average rectified current in a surface mount SMC (DO-214AB) package. This part is classified as "Not For New Designs," indicating it has reached end-of-life status. Organizations currently using US5B-TP in production or maintenance applications require qualified substitute components that maintain electrical and mechanical compatibility while offering active product status and continued availability.

Substiute Parts

US5B-TP

Micro Commercial CoIn Stock: 19638US5B-TP Datasheet

Current PartRFQ

S3B-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 12432S3B-E3/57T Datasheet

SimilarRFQ

ES5BC-HF

Comchip TechnologyIn Stock: 900ES5BC-HF Datasheet

Parametric EquivalentRFQ

HS5B

Taiwan Semiconductor CorporationIn Stock: 769HS5B Datasheet

Parametric EquivalentRFQ

HS5B V7G

Taiwan Semiconductor CorporationIn Stock: 1662HS5B V7G Datasheet

Parametric EquivalentRFQ

US5BC-HF

Comchip TechnologyIn Stock: 1032US5BC-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the US5B-TP are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 100 V minimum
• Current - Average Rectified (Io): 5 A minimum
• Package / Case: DO-214AB, SMC (surface mount)
• Mounting Type: Surface Mount
• Operating Temperature - Junction: -55°C to 150°C minimum range

Secondary Compatibility Factors:

• Voltage - Forward (Vf) (Max) @ If: 1 V or lower @ 5 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitutes are grouped into two categories:

Full Parametric Equivalents (100% Compatible): Parts meeting or exceeding all primary and secondary criteria with identical electrical performance specifications.

Functional Equivalents (Reduced Current Rating): Parts meeting voltage, package, and temperature requirements but with lower current ratings (3 A vs. 5 A), suitable only for applications where the full 5 A rating is not required.

Parameter Comparison

Engineering Selection Recommendations

Full Parametric Equivalents (Recommended for Direct Replacement):

ES5BC-HF (Comchip Technology) and US5BC-HF (Comchip Technology) are full parametric equivalents meeting all electrical specifications of the US5B-TP. Both parts are rated for 100 V, 5 A, feature fast recovery characteristics (≤ 500ns), and are housed in DO-214AB SMC packages. Both maintain ROHS3 compliance and MSL 1 rating. ES5BC-HF offers improved reverse recovery time (35 ns vs. 50 ns) and lower reverse leakage current (5 µA vs. 10 µA). Both parts carry Active product status with confirmed current inventory availability.

HS5B (Taiwan Semiconductor Corporation) is a full parametric equivalent with identical electrical ratings and performance characteristics to the US5B-TP. This part is Active and maintains all compliance certifications. HS5B is suitable for direct replacement in applications requiring the full 5 A rating and fast recovery characteristics.

HS5B V7G (Taiwan Semiconductor Corporation) is electrically equivalent to HS5B but carries Discontinued at DiGi Electronics status. This part should not be selected for new procurement due to limited availability and discontinued distribution status.

Functional Equivalent (Current-Limited Applications Only):

S3B-E3/57T (Vishay General Semiconductor - Diodes Division) is a functional equivalent with 100 V voltage rating and DO-214AB SMC package compatibility. However, this part is rated for 3 A average rectified current, not 5 A. Additionally, S3B-E3/57T features standard recovery characteristics (>500ns) rather than fast recovery (≤ 500ns). This part is suitable only for applications where the circuit design accommodates the reduced 3 A current rating and standard recovery speed. S3B-E3/57T is Active with confirmed inventory availability.

Compliance and Availability Summary:

All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with existing supply chain and assembly processes. ES5BC-HF, US5BC-HF, and S3B-E3/57T carry Active product status with current inventory. HS5B is Active with confirmed stock. HS5B V7G should be avoided due to discontinued distribution status.

Frequently Asked Questions (FAQ)

Q: Can ES5BC-HF or US5BC-HF be used as direct replacements for US5B-TP?

A: Yes. Both ES5BC-HF and US5BC-HF are full parametric equivalents rated for 100 V, 5 A, with fast recovery characteristics (≤ 500ns) and DO-214AB SMC packaging. Both maintain identical operating temperature ranges (-55°C to 150°C) and compliance certifications. These parts are suitable for direct replacement in all applications where US5B-TP was specified.

Q: What is the difference between ES5BC-HF and US5BC-HF?

A: Both parts are manufactured by Comchip Technology and share identical electrical ratings (100 V, 5 A, 1 V forward voltage @ 5 A, fast recovery ≤ 500ns). ES5BC-HF offers slightly improved performance with reverse recovery time of 35 ns and reverse leakage current of 5 µA @ 100 V, compared to US5BC-HF at 50 ns and 5 µA respectively. Both are suitable for direct replacement; ES5BC-HF provides marginal performance enhancement.

Q: Can HS5B be used instead of US5B-TP?

A: Yes. HS5B manufactured by Taiwan Semiconductor Corporation is a full parametric equivalent with identical 100 V, 5 A ratings, fast recovery characteristics (50 ns), and DO-214AB SMC packaging. HS5B is Active and maintains all required compliance certifications. This part is suitable for direct replacement.

Q: Why is S3B-E3/57T listed as a substitute if it has only 3 A rating?

A: S3B-E3/57T is listed as a functional equivalent for applications where the circuit design accommodates reduced current capacity. This part meets the 100 V voltage requirement and DO-214AB SMC package specification but is rated for 3 A instead of 5 A. S3B-E3/57T also features standard recovery characteristics (>500ns) rather than fast recovery. This part is suitable only when the application does not require the full 5 A current rating or fast recovery performance.

Q: Should HS5B V7G be considered for new designs?

A: No. HS5B V7G carries Discontinued at DiGi Electronics status, indicating limited availability and discontinued distribution. While electrically equivalent to HS5B, this part should not be selected for new procurement. Use HS5B (Active status) or ES5BC-HF/US5BC-HF instead.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (ES5BC-HF, HS5B, HS5B V7G, US5BC-HF, and S3B-E3/57T) are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with existing assembly and supply chain processes.

Q: What is the primary reason to substitute US5B-TP?

A: US5B-TP is classified as "Not For New Designs," indicating end-of-life status. Substitution is necessary to ensure continued availability, active manufacturer support, and compliance with current supply chain requirements. Active alternatives such as ES5BC-HF, US5BC-HF, and HS5B provide equivalent or superior performance with confirmed current inventory and ongoing manufacturer support.

Q: Do all substitute parts use the same DO-214AB SMC package?

A: Yes. All substitute parts listed (ES5BC-HF, HS5B, HS5B V7G, US5BC-HF, and S3B-E3/57T) use the DO-214AB SMC surface mount package, ensuring mechanical and footprint compatibility with existing PCB designs.

Q: What is the difference between fast recovery and standard recovery diodes?

A: Fast recovery diodes have reverse recovery time ≤ 500ns (US5B-TP: 50 ns, ES5BC-HF: 35 ns, HS5B: 50 ns, US5BC-HF: 50 ns), suitable for high-frequency switching applications. Standard recovery diodes have reverse recovery time >500ns (S3B-E3/57T: 2.5 µs), suitable for lower-frequency or linear applications. Select based on circuit switching frequency requirements.