Equivalent & Substitute Parts Reference for AS1FKHM3/I

Part Overview

The Vishay General Semiconductor AS1FKHM3/I is an automotive-grade avalanche diode in the Diodes, Rectifiers category. Supplied in tape & reel packaging, it features a maximum reverse voltage of 800 V, average rectified current of 1.5A, and is housed in a DO-219AB surface mount package. The part is qualified per AEC-Q101 standards and is RoHS3 compliant, with an operating junction temperature from -55°C to 175°C. Identifying parametric equivalents and substitute part numbers is necessary to maintain supply chain flexibility or address needs for alternative packaging forms while ensuring electrical and mechanical compatibility.

Substiute Parts

AS1FKHM3/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 940AS1FKHM3/I Datasheet

Current PartRFQ

AS1FK-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 18753AS1FK-M3/H Datasheet

Parametric EquivalentRFQ

AS1FKHM3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 19020AS1FKHM3/H Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for AS1FKHM3/I are determined strictly based on identical electrical and mechanical parameters. The key criteria are:

• Avalanche diode technology
• Maximum reverse voltage of 800 V
• Average rectified current of 1.5A
• Maximum forward voltage of 1.15 V @ 1.5A
• Reverse recovery time of 1.3 µs
• Reverse leakage current at 5 µA @ 800 V
• Capacitance at 8.8pF @ 4V, 1MHz
• Automotive grade and AEC-Q101 qualification
• Surface mount configuration with DO-219AB package
• Operating temperature range: -55°C to 175°C
• RoHS3 and REACH compliance
• ECCN and HTSUS code matching

Only parts meeting all provided key parameters are included as substitutes.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed, including AS1FK-M3/H and AS1FKHM3/H, match the main part AS1FKHM3/I in electrical ratings, mechanical package, automotive qualification, and regulatory compliance (RoHS3 and REACH). Selection can be made based on identical functional and certification parameters and packaging requirements (Tape & Reel vs. Cut Tape) as provided.

Frequently Asked Questions (FAQ)

Q1: What parameters must match for substitution between automotive-grade diodes in the DO-219AB package?
A1: Key matching parameters are technology type (Avalanche), voltage and current ratings, reverse recovery time, leakage and capacitance values, automotive qualification, mounting type, mechanical package, operating temperature range, and regulatory compliance.

Q2: Can AS1FK-M3/H or AS1FKHM3/H be used directly in place of AS1FKHM3/I?
A2: Yes, provided the application's packaging requirements align with Cut Tape (CT) instead of Tape & Reel (TR). All key electrical, mechanical, and qualification parameters are equivalent.

Q3: Are there differences in performance or qualification between AS1FKHM3/I and its substitutes?
A3: No differences are present in the explicitly provided parameters. Automotive grade, AEC-Q101 qualification, and all electrical characteristics are matched.

Q4: What packaging considerations are relevant when substituting?
A4: AS1FKHM3/I is supplied in Tape & Reel packaging, while substitutes are provided in Cut Tape. Selection should reflect production line compatibility or inventory handling requirements.

Q5: Are all substitutes compliant with RoHS3 and REACH directives?
A5: All listed substitutes are ROHS3 compliant and REACH unaffected as per the provided data.