ACFRA102-HF Equivalent & Substitute Parts

Part Overview

The ACFRA102-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 100 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 necessary when the primary part becomes unavailable due to supply constraints, manufacturing discontinuation, or procurement optimization across multiple suppliers. The substitute parts listed maintain electrical and mechanical compatibility through identical or equivalent parametric specifications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 1 A	V
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the ACFRA102-HF is determined by the following critical parameters:

Voltage Rating: DC reverse voltage must equal 100 V maximum
Current Rating: Average rectified current must equal 1 A
Forward Voltage: Maximum forward voltage at 1 A must equal 1.3 V
Recovery Characteristics: Fast recovery with reverse recovery time of 150 ns
Package: DO-214AC (SMA) surface mount package required
Temperature Range: Operating junction temperature range -55°C to 150°C
Compliance: RoHS3 compliance and MSL 1 rating

All substitute parts listed meet these electrical and mechanical requirements. Variations in capacitance (10 pF to 12 pF @ 4V, 1MHz) and reverse leakage current (1 µA to 5 µA @ 100 V) remain within acceptable tolerance for general-purpose rectification applications and do not disqualify substitution.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	trr	Ir @ Vr	Package	Product Status	Packaging Type
ACFRA102-HF	Comchip Technology	100 V	1 A	1.3 V @ 1 A	150 ns	5 µA @ 100 V	DO-214AC, SMA	Active	Tape & Reel (TR)
RS1B R3G	Taiwan Semiconductor Corporation	100 V	1 A	1.3 V @ 1 A	150 ns	5 µA @ 100 V	DO-214AC, SMA	Discontinued at DiGi Electronics	Cut Tape (CT)
RS1B-E3/5AT	Vishay General Semiconductor - Diodes Division	100 V	1 A	1.3 V @ 1 A	150 ns	5 µA @ 100 V	DO-214AC, SMA	Active	Tape & Reel (TR)
RS1B-E3/61T	Vishay General Semiconductor - Diodes Division	100 V	1 A	1.3 V @ 1 A	150 ns	5 µA @ 100 V	DO-214AC, SMA	Active	Tape & Reel (TR)
RS1B_R1_00001	Panjit International Inc.	100 V	1 A	1.3 V @ 1 A	150 ns	1 µA @ 100 V	DO-214AC, SMA	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Primary Substitutes (Active Status, Tape & Reel Packaging)

RS1B-E3/5AT and RS1B-E3/61T, both manufactured by Vishay General Semiconductor - Diodes Division, are the preferred substitutes. Both parts maintain Active product status, are supplied in Tape & Reel packaging matching the original ACFRA102-HF format, and carry RoHS3 compliance with REACH unaffected status. These parts are suitable for direct replacement in production environments requiring consistent packaging and supply chain continuity.

Secondary Substitute (Active Status, Alternative Packaging)

RS1B_R1_00001, manufactured by Panjit International Inc., is an Active product with identical electrical specifications. This part features lower reverse leakage current (1 µA versus 5 µA), which may provide improved performance in low-leakage applications. Tape & Reel packaging is available. RoHS3 compliance and REACH unaffected status are confirmed.

Discontinued Substitute (Reference Only)

RS1B R3G, manufactured by Taiwan Semiconductor Corporation, is listed as Discontinued at DiGi Electronics and is supplied in Cut Tape packaging. This part is not recommended for new designs or production procurement due to discontinued status, though it remains electrically equivalent.

All substitute parts are RoHS3 compliant with MSL 1 (Unlimited) rating, ensuring compatibility with standard surface mount assembly processes and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can RS1B-E3/5AT be used as a direct replacement for ACFRA102-HF?

A: Yes. RS1B-E3/5AT meets all critical electrical parameters: 100 V reverse voltage, 1 A average rectified current, 1.3 V forward voltage at 1 A, and 150 ns reverse recovery time. Both parts use DO-214AC (SMA) surface mount packaging and are supplied in Tape & Reel format. RoHS3 compliance is confirmed for both parts.

Q: What is the difference between RS1B-E3/5AT and RS1B-E3/61T?

A: Both parts are manufactured by Vishay General Semiconductor - Diodes Division and share identical electrical specifications and packaging. The difference lies in the part number suffix, which typically indicates different manufacturing date codes or internal lot tracking. Both are suitable substitutes for ACFRA102-HF.

Q: Why is RS1B_R1_00001 listed as a substitute if it has different reverse leakage current?

A: RS1B_R1_00001 has lower reverse leakage current (1 µA versus 5 µA at 100 V). This represents improved performance rather than degradation, as lower leakage is beneficial in rectification applications. The part remains electrically compatible and is suitable for substitution.

Q: Can I use RS1B R3G in new production designs?

A: RS1B R3G is listed as Discontinued at DiGi Electronics and should not be selected for new production designs. Use RS1B-E3/5AT, RS1B-E3/61T, or RS1B_R1_00001 instead, all of which maintain Active product status.

Q: Are there packaging differences between the substitute parts?

A: ACFRA102-HF and the recommended substitutes (RS1B-E3/5AT, RS1B-E3/61T, RS1B_R1_00001) are all supplied in Tape & Reel (TR) packaging, ensuring compatibility with automated assembly equipment. RS1B R3G is supplied in Cut Tape (CT) packaging and requires different handling.

Q: Do all substitute parts have the same moisture sensitivity level?

A: Yes. ACFRA102-HF and all substitute parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard storage and handling procedures apply to all parts.

Q: What compliance certifications apply to the substitute parts?

A: All substitute parts are RoHS3 compliant. RS1B-E3/5AT, RS1B-E3/61T, and RS1B_R1_00001 carry REACH Unaffected status. ACFRA102-HF carries RoHS3 compliance. All parts are classified under ECCN EAR99 and HTSUS 8541.10.0080.

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