Equivalent & Substitute Parts for SS32HE3_A/I

Part Overview

The Vishay General Semiconductor SS32HE3_A/I is a Schottky rectifier diode specified for 20 V maximum DC reverse voltage and 3 A average rectified current, in a DO-214AB (SMC) surface-mount package. It is an automotive grade, AEC-Q101 qualified component, compliant with ROHS3 and designed for fast recovery applications. This part is discontinued at Digi-Key, making it necessary for engineers to identify strictly equivalent or substitute parts based on identical or compatible electrical and mechanical parameters.

Key Parameters

Parameter	Value
Manufacturer	Vishay General Semiconductor - Diodes Division
Category	Diodes, Rectifiers
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	20 V
Current - Average Rectified (Io)	3A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 1 A
Speed	Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	200 µA @ 20 V
Package / Case	DO-214AB, SMC
Mounting Type	Surface Mount
Grade / Qualification	Automotive / AEC-Q101
RoHS Status	ROHS3 Compliant
Operating Temperature - Junction	-65°C ~ 125°C
Product Status	Discontinued at Digi-Key

Substitute Part Grouping Explanation

Substitution suitability is determined exclusively by matching these electrical and mechanical parameters: Schottky technology, 20 V maximum DC reverse voltage, 3 A average rectified current, maximum forward voltage within the specified range, fast recovery speed, compatible surface-mount DO-214AB (SMC) or DO-214AB package, automotive or equivalent grade/qualification, and RoHS or equivalent compliance. Only substitute parts meeting these criteria are considered.

Parameter Comparison

Parameter	SS32HE3_A/I	SS32HE3_B/I	5820SMJ/TR13
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Microchip Technology
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Technology	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	20 V	20 V	20 V
Current - Average Rectified (Io)	3A	3A	3A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 1 A	500 mV @ 3 A	460 mV @ 3 A
Speed	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	200 µA @ 20 V	500 µA @ 20 V	1.5 mA @ 20 V
Package / Case	DO-214AB, SMC	DO-214AB, SMC	DO-214AB
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Grade / Qualification	Automotive / AEC-Q101	Automotive / AEC-Q101	-
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant
Operating Temperature - Junction	-65°C ~ 125°C	-55°C ~ 150°C	-55°C ~ 150°C
Product Status	Discontinued at Digi-Key	Active	Active

Engineering Selection Recommendations

The SS32HE3_B/I from Vishay General Semiconductor is active, with matching voltage, current, package, and automotive AEC-Q101 qualification. It is ROHS3 compliant, aligning with environmental requirements. The Microchip Technology 5820SMJ/TR13 is active and matches voltage, current, and package but is RoHS non-compliant and lacks automotive/AEC-Q101 qualification data. Selection should be based on product status, compliance, and qualification as provided.

Frequently Asked Questions (FAQ)

Q1: What are the main criteria for selecting a substitute for the SS32HE3_A/I Schottky diode?
A1: The substitute part must match the key electrical parameters (voltage, current, forward voltage drop, speed, and reverse leakage), package type (DO-214AB/SMC), mounting type, and, where necessary, grade/qualification and compliance status.

Q2: Can package differences affect compatibility?
A2: Only DO-214AB (SMC) or DO-214AB packages are allowed for substitution, as they ensure mechanical and pad compatibility for surface-mount assembly.

Q3: Is AEC-Q101 qualification mandatory for substitutes?
A3: For applications requiring automotive grade, the substitute must explicitly list AEC-Q101 qualification.

Q4: Why is RoHS compliance important in selection?
A4: RoHS compliance ensures the part meets environmental regulations. Selection must match the compliance status as specified.

Q5: How does product status influence substitute selection?
A5: Only active parts should be selected to ensure ongoing availability and support, as reflected in the provided product status field.

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