ACFRA101-HF Equivalent & Substitute Parts

Part Overview

The ACFRA101-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 50 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1). Substitute parts are identified based on matching electrical specifications, package compatibility, and thermal operating range to ensure functional equivalence in circuit applications.

Substiute Parts

ACFRA101-HF

Comchip TechnologyIn Stock: 771ACFRA101-HF Datasheet

Current PartRFQ

RS1A

Taiwan Semiconductor CorporationIn Stock: 22861RS1A Datasheet

Parametric EquivalentRFQ

RS1A-E3/5AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 7704RS1A-E3/5AT Datasheet

Parametric EquivalentRFQ

RS1A-E3/61T

Vishay General Semiconductor - Diodes DivisionIn Stock: 5314RS1A-E3/61T Datasheet

Parametric EquivalentRFQ

RS1A_R1_00001

Panjit International Inc.In Stock: 2851RS1A_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ACFRA101-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): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1 A
• Reverse Recovery Time (trr): 150 ns
• Current - Reverse Leakage @ Vr: 5 µA @ 50 V
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Operating Temperature - Junction: -55°C to 150°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts meet these electrical specifications and package requirements. Minor variations in capacitance (10 pF to 12 pF @ 4V, 1MHz) and reverse leakage current (1 µA to 5 µA @ 50 V) remain within acceptable tolerance ranges for general-purpose rectifier applications and do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts are Active product status and maintain full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1) equivalent to the ACFRA101-HF. Selection among substitute parts may be based on:

Availability and Lead Time: RS1A (Taiwan Semiconductor Corporation) offers the highest inventory level at 22,800 pieces, followed by RS1A-E3/5AT (Vishay) at 7,690 pieces, RS1A-E3/61T (Vishay) at 5,232 pieces, and RS1A_R1_00001 (Panjit International Inc.) at 2,823 pieces.

Packaging Format: RS1A-E3/5AT and RS1A-E3/61T are supplied in Cut Tape (CT) & Digi-Reel® format, while RS1A and RS1A_R1_00001 are supplied in standard Tape & Reel (TR) format. The original ACFRA101-HF is supplied in Tape & Reel (TR).

Reverse Leakage Specification: RS1A_R1_00001 (Panjit) specifies 1 µA @ 50 V reverse leakage current, which is lower than the 5 µA specification of other substitutes and the original part. This represents improved performance in low-leakage applications.

Capacitance Specification: ACFRA101-HF and RS1A_R1_00001 specify 12 pF @ 4V, 1MHz, while RS1A and both Vishay variants specify 10 pF @ 4V, 1MHz. Both values are acceptable for general-purpose rectifier applications.

Frequently Asked Questions (FAQ)

Q: Can RS1A (Taiwan Semiconductor Corporation) be used as a direct replacement for ACFRA101-HF?

A: Yes. RS1A meets all critical electrical parameters including 50 V reverse voltage rating, 1 A average rectified current, 1.3 V forward voltage drop at 1 A, 150 ns reverse recovery time, and identical operating temperature range (-55°C to 150°C). Both components use the DO-214AC (SMA) surface mount package and are RoHS3 compliant with MSL 1 rating.

Q: What is the difference between RS1A-E3/5AT and RS1A-E3/61T?

A: Both parts are manufactured by Vishay General Semiconductor - Diodes Division and share identical electrical specifications. The primary difference is the packaging format designation (E3/5AT versus E3/61T), which reflects different tape and reel configurations. Both are supplied in Cut Tape (CT) & Digi-Reel® format and are functionally equivalent.

Q: Does RS1A_R1_00001 offer any advantage over other substitutes?

A: RS1A_R1_00001 (Panjit International Inc.) specifies a reverse leakage current of 1 µA @ 50 V, which is lower than the 5 µA specification of the original ACFRA101-HF and other substitutes. This lower leakage characteristic may provide improved performance in applications sensitive to reverse leakage current. All other electrical parameters remain identical.

Q: Are all substitute parts available in the same package as the original ACFRA101-HF?

A: Yes. All substitute parts use the DO-214AC (SMA) surface mount package with identical mechanical dimensions and pin configuration. Surface mount assembly equipment and PCB footprints designed for ACFRA101-HF are compatible with all identified substitutes.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity level rating, matching the original ACFRA101-HF. All parts are classified as Active product status. RS1A, RS1A-E3/5AT, RS1A-E3/61T, and RS1A_R1_00001 carry REACH Unaffected status where specified.

Q: Can I mix different substitute part manufacturers in the same production batch?

A: All substitute parts meet identical electrical specifications and package requirements. Mixing manufacturers within a single production batch is permissible from an electrical and mechanical compatibility standpoint. However, procurement and quality assurance procedures should follow standard component management practices for traceability and documentation.