US5BC-HF Equivalent & Substitute Parts

Part Overview

The US5BC-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 100 V DC reverse voltage and 5 A average rectified current in a surface mount DO-214AB (SMC) package. This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when the primary part becomes unavailable due to inventory constraints, manufacturer discontinuation, or supply chain disruptions. The parts listed below maintain electrical and mechanical compatibility with the US5BC-HF within the specified parameter tolerances for this rectifier diode category.

Substiute Parts

US5BC-HF

Comchip TechnologyIn Stock: 1032US5BC-HF Datasheet

Current PartRFQ

HS5B V7G

Taiwan Semiconductor CorporationIn Stock: 1662HS5B V7G Datasheet

Parametric EquivalentRFQ

US5B-TP

Micro Commercial CoIn Stock: 19638US5B-TP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the US5BC-HF is determined by the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 100 V
• Current - Average Rectified (Io): 5 A
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 5 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Reverse Recovery Time (trr): 50 ns
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Operating Temperature - Junction: -55°C to 150°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Allowable Parameter Variations:

• Current - Reverse Leakage @ Vr: Tolerance range 5 µA to 10 µA @ 100 V
• Capacitance @ Vr, F: Tolerance range 50 pF to 80 pF @ 4V, 1MHz (or unspecified)

The substitute parts listed below satisfy all mandatory matching parameters and fall within allowable variations for reverse leakage current and capacitance specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: US5BC-HF

The US5BC-HF maintains Active product status and is the recommended primary choice for new designs and ongoing production. This part is manufactured by Comchip Technology and is available in Tape & Reel packaging suitable for automated assembly processes.

Secondary Selection: US5B-TP

The US5B-TP, manufactured by Micro Commercial Co, is electrically equivalent to the US5BC-HF and is available in Tape & Reel packaging. However, this part carries a "Not For New Designs" product status designation. The US5B-TP is suitable for replacement and maintenance applications where existing inventory or supply chain continuity is required. Current reverse leakage is specified at 10 µA @ 100 V, which is within acceptable tolerance for this rectifier category.

Tertiary Selection: HS5B V7G

The HS5B V7G, manufactured by Taiwan Semiconductor Corporation, is electrically equivalent to the US5BC-HF with identical electrical performance specifications. This part is currently listed as Discontinued at DiGi Electronics. The HS5B V7G exhibits higher capacitance (80 pF @ 4V, 1MHz) compared to the US5BC-HF (50 pF @ 4V, 1MHz) and higher reverse leakage current (10 µA @ 100 V). These variations remain within acceptable operating parameters for general-purpose rectifier applications. Packaging format is not specified for this part.

Compliance Considerations:

All three parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity level, ensuring compatibility with standard surface mount assembly and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the HS5B V7G be used as a direct replacement for the US5BC-HF?

A: The HS5B V7G is electrically equivalent to the US5BC-HF across all critical parameters including voltage rating, current rating, forward voltage, and recovery time. The part is currently discontinued at DiGi Electronics, which may limit availability. Higher capacitance (80 pF vs. 50 pF) and reverse leakage current (10 µA vs. 5 µA) are within acceptable tolerance ranges for general-purpose rectifier applications.

Q: What is the difference between US5B-TP and US5BC-HF?

A: The US5B-TP and US5BC-HF are electrically equivalent across all critical electrical parameters. Both are rated for 100 V reverse voltage, 5 A average rectified current, and feature identical forward voltage and recovery time specifications. The primary difference is product status: US5BC-HF is Active, while US5B-TP is designated "Not For New Designs." Both are available in Tape & Reel packaging.

Q: Are all substitute parts available in the same packaging format?

A: The US5BC-HF and US5B-TP are both available in Tape & Reel (TR) packaging. The HS5B V7G packaging format is not specified in available documentation. For automated assembly applications requiring Tape & Reel format, the US5B-TP is the confirmed alternative to US5BC-HF.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching voltage rating (100 V), current rating (5 A), forward voltage (1 V @ 5 A), recovery time classification (Fast Recovery ≤ 500ns), reverse recovery time (50 ns), package type (DO-214AB, SMC), mounting type (Surface Mount), operating temperature range (-55°C to 150°C), and compliance certifications (ROHS3, MSL 1). Reverse leakage current and capacitance specifications allow for minor variations within the ranges specified.

Q: Can the US5B-TP be used in new product designs?

A: The US5B-TP carries a "Not For New Designs" product status designation. For new product designs, the US5BC-HF is the recommended choice as it maintains Active status. The US5B-TP is suitable for replacement, maintenance, and legacy system applications.

Q: What is the significance of the reverse leakage current difference between these parts?

A: The US5BC-HF specifies 5 µA @ 100 V reverse leakage, while both HS5B V7G and US5B-TP specify 10 µA @ 100 V. This difference is within acceptable tolerance for general-purpose rectifier diodes and does not affect functional compatibility in standard rectification applications. The higher leakage current in substitute parts remains negligible for typical circuit operation.

Q: Are all parts RoHS3 compliant?

A: Yes, all three parts (US5BC-HF, HS5B V7G, and US5B-TP) are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity level, ensuring compatibility with standard surface mount assembly processes and storage requirements.