Equivalent & Substitute Parts for US5AC-HF

Part Overview

The US5AC-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 50 V DC reverse voltage and 5 A average rectified current in a DO-214AB (SMC) surface mount package. This component is classified as Active product status and is currently in stock with 1,072 pieces available.

Substitute parts become necessary when the primary component reaches end-of-life status, experiences supply chain constraints, or when design flexibility requires alternative qualified sources. The substitute parts listed maintain electrical and mechanical compatibility within the specified parameter ranges for this rectifier diode category.

Substiute Parts

US5AC-HF

Comchip TechnologyIn Stock: 1146US5AC-HF Datasheet

Current PartRFQ

HS5A R7G

Taiwan Semiconductor CorporationIn Stock: 877HS5A R7G Datasheet

Parametric EquivalentRFQ

HS5A V7G

Taiwan Semiconductor CorporationIn Stock: 2172HS5A V7G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the US5AC-HF are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 50 V
• Current - Average Rectified (Io): 5 A
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C
• Technology: Standard (Fast Recovery)
• Reverse Recovery Time (trr): 50 ns

Allowable Variations:

• Voltage - Forward (Vf) (Max) @ If: 1 V @ 5 A (matched)
• Current - Reverse Leakage @ Vr: Up to 10 µA @ 50 V (slight increase acceptable)
• Capacitance @ Vr, F: Up to 80 pF @ 4V, 1MHz (slight increase acceptable)
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT) formats are interchangeable for surface mount assembly

The substitute parts HS5A R7G and HS5A V7G, both manufactured by Taiwan Semiconductor Corporation, meet all critical electrical parameters and package requirements. Both parts maintain ROHS3 compliance and identical operating temperature specifications.

Parameter Comparison

Engineering Selection Recommendations

US5AC-HF (Primary Component): The US5AC-HF maintains Active product status with current inventory availability of 1,072 pieces. This component is the preferred selection for new designs and ongoing production when supply is available. ROHS3 compliance and EAR99 export classification are confirmed.

HS5A R7G (Substitute - Cut Tape Packaging): The HS5A R7G is electrically equivalent to the US5AC-HF with identical voltage, current, and thermal specifications. This part is listed as Discontinued at DiGi Electronics but maintains 860 pieces in current inventory. The Cut Tape (CT) packaging format is suitable for automated assembly processes. ROHS3 compliance and REACH Unaffected status are confirmed. Selection of this substitute is appropriate when US5AC-HF availability is constrained and Cut Tape format is compatible with assembly equipment.

HS5A V7G (Substitute - Unspecified Packaging): The HS5A V7G is electrically equivalent to the US5AC-HF with identical voltage, current, and thermal specifications. This part is listed as Discontinued at DiGi Electronics but maintains the highest inventory availability at 2,075 pieces. ROHS3 compliance and REACH Unaffected status are confirmed. Selection of this substitute is appropriate when US5AC-HF availability is constrained and packaging format flexibility exists.

Compliance Considerations: All three parts maintain ROHS3 compliance, EAR99 export classification, and MSL Level 1 (Unlimited) moisture sensitivity rating. No additional environmental or regulatory constraints differentiate these components.

Frequently Asked Questions (FAQ)

Q: Can HS5A R7G and HS5A V7G be used interchangeably with US5AC-HF?

A: Yes. Both substitute parts meet all critical electrical parameters: 50 V reverse voltage rating, 5 A average rectified current, 50 ns reverse recovery time, and DO-214AB surface mount package. Operating temperature range, forward voltage, and RoHS compliance are identical. The primary difference is packaging format (Cut Tape versus unspecified), which does not affect electrical performance or circuit compatibility.

Q: What are the differences between the substitute parts?

A: HS5A R7G is supplied in Cut Tape (CT) format, while HS5A V7G packaging format is not specified in the provided data. Both parts are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications. Inventory availability differs: HS5A R7G has 860 pieces available, while HS5A V7G has 2,075 pieces available.

Q: Are there any performance differences in reverse leakage current?

A: The US5AC-HF specifies 5 µA reverse leakage at 50 V, while both substitute parts specify 10 µA at 50 V. This represents a 5 µA increase in leakage current. For most general-purpose rectifier applications, this variation remains within acceptable operating margins and does not affect circuit functionality.

Q: Are there any performance differences in capacitance?

A: The US5AC-HF specifies 50 pF capacitance at 4 V and 1 MHz, while both substitute parts specify 80 pF at the same conditions. This 30 pF increase may affect high-frequency circuit behavior in sensitive applications. Verification of circuit performance is necessary if the design operates at frequencies where diode capacitance is a critical parameter.

Q: What is the significance of the product status "Discontinued at DiGi Electronics" for the substitute parts?

A: This status indicates that the substitute parts are no longer actively distributed through DiGi Electronics but remain available through current inventory. The US5AC-HF maintains Active status, making it the preferred long-term selection. Substitute parts should be selected only when primary component availability is insufficient.

Q: Are all three parts suitable for surface mount assembly?

A: Yes. All three parts use the DO-214AB (SMC) surface mount package and are classified as Surface Mount components. The packaging format differences (Tape & Reel versus Cut Tape) relate to supply and handling methods, not to assembly compatibility.

Q: Do all parts meet RoHS compliance requirements?

A: Yes. The US5AC-HF, HS5A R7G, and HS5A V7G are all ROHS3 compliant. The substitute parts additionally carry REACH Unaffected status. All parts are suitable for applications requiring RoHS compliance.