SS3P4HE3/84A Equivalent & Substitute Parts

Part Overview

The SS3P4HE3/84A is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 40 V DC reverse voltage and 3 A average rectified current in a DO-220AA surface mount package. This diode is classified as Active product status and meets automotive-grade specifications under AEC-Q100 qualification. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or specific packaging requirements.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io)	3 A
Voltage - Forward (Vf) (Max) @ If	600 mV @ 3 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	150 µA @ 40 V
Capacitance @ Vr, F	130pF @ 4V, 1MHz
Package / Case	DO-220AA (SMP)
Operating Temperature - Junction	-55°C ~ 150°C
Technology	Schottky
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution of the SS3P4HE3/84A is determined by strict equivalence across the following electrical and mechanical parameters:

Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io): 3 A
Voltage - Forward (Vf) (Max) @ If: 600 mV @ 3 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 150 µA @ 40 V
Package / Case: DO-220AA (SMP)
Operating Temperature - Junction: -55°C ~ 150°C
Technology: Schottky
Mounting Type: Surface Mount

All identified substitute parts maintain identical electrical ratings and mechanical compatibility. Variations in packaging format (Tape & Reel versus bulk), automotive qualification level (AEC-Q100 versus AEC-Q101), and series designation do not affect functional interchangeability in circuit applications.

Parameter Comparison

Parameter	SS3P4HE3/84A	SS3P4-M3/84A	SS3P4HM3/84A	SS3P4HM3/85A
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Technology	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	40 V	40 V	40 V	40 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	600 mV @ 3 A	600 mV @ 3 A	600 mV @ 3 A	600 mV @ 3 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	150 µA @ 40 V	150 µA @ 40 V	150 µA @ 40 V	150 µA @ 40 V
Capacitance @ Vr, F	130pF @ 4V, 1MHz	130pF @ 4V, 1MHz	130pF @ 4V, 1MHz	Not specified
Package / Case	DO-220AA (SMP)	DO-220AA (SMP)	DO-220AA (SMP)	DO-220AA (SMP)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Product Status	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Grade	Automotive	Not specified	Automotive	Automotive
Qualification	AEC-Q100	Not specified	AEC-Q101	AEC-Q101

Engineering Selection Recommendations

All four diode part numbers are Active products manufactured by Vishay General Semiconductor - Diodes Division and maintain full electrical and mechanical equivalence for circuit applications requiring 40 V, 3 A Schottky rectification in DO-220AA surface mount packages.

SS3P4HE3/84A carries AEC-Q100 automotive qualification and is suitable for applications requiring this specific certification level.

SS3P4-M3/84A provides equivalent electrical performance without specified automotive grade or qualification designation, offering an alternative when automotive qualification is not a circuit requirement.

SS3P4HM3/84A carries AEC-Q101 automotive qualification, providing an alternative automotive-qualified option with enhanced qualification requirements compared to AEC-Q100.

SS3P4HM3/85A carries AEC-Q101 automotive qualification and is functionally equivalent, with the exception that capacitance at rated voltage and frequency is not specified in available documentation.

All parts are ROHS3 compliant, REACH unaffected, and feature unlimited moisture sensitivity level (MSL 1). Selection between these parts is determined by specific automotive qualification requirements, packaging format preferences (Tape & Reel versus bulk), and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can SS3P4-M3/84A be used as a direct replacement for SS3P4HE3/84A?

A: SS3P4-M3/84A is electrically and mechanically equivalent to SS3P4HE3/84A across all specified parameters. The primary difference is that SS3P4-M3/84A does not carry an automotive grade or qualification designation. Direct substitution is permissible in applications where automotive qualification is not required.

Q: What is the difference between AEC-Q100 and AEC-Q101 qualifications?

A: Both qualifications are automotive standards. AEC-Q100 and AEC-Q101 represent different qualification levels established by the Automotive Electronics Council. Selection between SS3P4HE3/84A (AEC-Q100) and SS3P4HM3/84A or SS3P4HM3/85A (AEC-Q101) depends on specific circuit and application requirements.

Q: Are all substitute parts available in the same packaging format?

A: SS3P4HE3/84A is supplied in bulk packaging. SS3P4-M3/84A, SS3P4HM3/84A, and SS3P4HM3/85A are supplied in Tape & Reel (TR) format. Both packaging formats contain identical diode components; packaging format selection is determined by assembly process requirements and inventory management practices.

Q: Is the capacitance specification critical for substitution?

A: Capacitance at rated voltage and frequency is specified as 130pF @ 4V, 1MHz for SS3P4HE3/84A, SS3P4-M3/84A, and SS3P4HM3/84A. SS3P4HM3/85A does not include capacitance specification in available documentation. For applications where junction capacitance is a critical design parameter, SS3P4HE3/84A, SS3P4-M3/84A, or SS3P4HM3/84A are preferred.

Q: Do all substitute parts operate across the same temperature range?

A: All four diode part numbers operate across the identical junction temperature range of -55°C to 150°C, ensuring thermal compatibility in circuit applications.

Q: What is the base product number for these diodes?

A: The base product number for all four parts is SS3P4. Variations in the full part number designate packaging format, qualification level, and manufacturing date code.

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