S4PGHM3_A/I Equivalent & Substitute Parts

Part Overview

The S4PGHM3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 400 V DC reverse voltage and 4 A average rectified current in a surface mount TO-277A (SMPC) package. This component is part of the eSMP® series and carries automotive-grade qualification (AEC-Q101).

The S4PGHM3_A/I is classified as obsolete. Equivalent and substitute parts are available to maintain design continuity and ensure supply chain availability for applications requiring 400 V, 4 A general-purpose rectification in the TO-277A package format.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	4	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 4 A	V
Reverse Recovery Time (trr)	2.5	µs
Current - Reverse Leakage @ Vr	10 @ 400 V	µA
Capacitance @ Vr, F	30 @ 4V, 1MHz	pF
Operating Temperature - Junction	-55 to 150	°C
Package / Case	TO-277, 3-PowerDFN
Mounting Type	Surface Mount
Technology	Standard
Grade	Automotive
Qualification	AEC-Q101

Substitute Part Grouping Explanation

Substitute parts for the S4PGHM3_A/I are qualified based on electrical and mechanical parameter equivalence within the following criteria:

Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 4 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 4 A
Reverse Recovery Time (trr): 2.5 µs
Current - Reverse Leakage @ Vr: 10 µA @ 400 V
Capacitance @ Vr, F: 30 pF @ 4V, 1MHz
Operating Temperature - Junction: -55°C to 150°C

Mechanical Parameters (Must Match):

Package / Case: TO-277, 3-PowerDFN
Mounting Type: Surface Mount
Supplier Device Package: TO-277A (SMPC)

Compliance & Certification (Must Match):

Technology: Standard
Grade: Automotive
Qualification: AEC-Q101
RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

All substitute parts listed maintain identical electrical performance and mechanical compatibility with the original S4PGHM3_A/I component.

Parameter Comparison

Parameter	S4PGHM3_A/I	S4PGHM3_B/I	S4PG-M3/86A	S4PG-M3/87A	S4PGHM3_A/H
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V	400 V	400 V
Current - Average Rectified (Io)	4 A	4 A	4 A	4 A	4 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 4 A	1.1 V @ 4 A	1.1 V @ 4 A	1.1 V @ 4 A	1.1 V @ 4 A
Reverse Recovery Time (trr)	2.5 µs	2.5 µs	2.5 µs	2.5 µs	2.5 µs
Current - Reverse Leakage @ Vr	10 µA @ 400 V	10 µA @ 400 V	10 µA @ 400 V	10 µA @ 400 V	10 µA @ 400 V
Capacitance @ Vr, F	30 pF @ 4V, 1MHz	30 pF @ 4V, 1MHz	30 pF @ 4V, 1MHz	30 pF @ 4V, 1MHz	30 pF @ 4V, 1MHz
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Technology	Standard	Standard	Standard	Standard	Standard
Grade	Automotive	Automotive	Not specified	Not specified	Automotive
Qualification	AEC-Q101	Not specified	Not specified	Not specified	AEC-Q101
RoHS Status	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Obsolete
Packaging Type	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT)

Engineering Selection Recommendations

Primary Recommendation: S4PGHM3_B/I

The S4PGHM3_B/I is the manufacturer-recommended substitute for the obsolete S4PGHM3_A/I. This part maintains full electrical and mechanical equivalence with identical ratings across all critical parameters. The S4PGHM3_B/I carries active product status, ensuring long-term availability and supply chain continuity. Packaging is supplied in Tape & Reel (TR) format, suitable for automated assembly processes.

Secondary Recommendations: S4PG-M3/86A and S4PG-M3/87A

Both S4PG-M3/86A and S4PG-M3/87A are parametric equivalents with active product status. These parts deliver identical electrical performance and mechanical compatibility. Both are supplied in Tape & Reel (TR) format. These options provide alternative sourcing channels while maintaining full design compatibility.

Alternative Option: S4PGHM3_A/H

The S4PGHM3_A/H is a parametric equivalent with automotive-grade qualification and AEC-Q101 certification matching the original part. This component is classified as obsolete but maintains full electrical and mechanical equivalence. Packaging is supplied in Cut Tape (CT) format. This option is suitable for applications where cut tape packaging is acceptable.

Compliance Considerations

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status. The S4PGHM3_B/I, S4PGHM3_A/H, S4PG-M3/86A, and S4PG-M3/87A are all manufactured by Vishay General Semiconductor - Diodes Division and are classified under ECCN EAR99 with HTSUS code 8541.10.0080.

Frequently Asked Questions (FAQ)

Q: Can S4PGHM3_B/I be used as a direct replacement for S4PGHM3_A/I?

A: Yes. The S4PGHM3_B/I is electrically and mechanically equivalent to the S4PGHM3_A/I across all specified parameters. Both components share identical voltage ratings (400 V), current ratings (4 A), forward voltage characteristics (1.1 V @ 4 A), reverse recovery time (2.5 µs), and operating temperature range (-55°C to 150°C). Both use the TO-277A (SMPC) package with surface mount technology.

Q: What is the difference between S4PGHM3_A/I and S4PGHM3_B/I?

A: The primary difference is product status and packaging format. The S4PGHM3_A/I is obsolete and supplied in bulk packaging, while the S4PGHM3_B/I is active and supplied in Tape & Reel (TR) format. All electrical and mechanical specifications are identical.

Q: Are S4PG-M3/86A and S4PG-M3/87A suitable replacements?

A: Yes. Both S4PG-M3/86A and S4PG-M3/87A are parametric equivalents with active product status. They maintain identical electrical performance and mechanical compatibility with the S4PGHM3_A/I. Both are supplied in Tape & Reel (TR) format.

Q: What packaging formats are available for these substitute parts?

A: Substitute parts are available in three packaging formats: Tape & Reel (TR) for S4PGHM3_B/I, S4PG-M3/86A, and S4PG-M3/87A; Cut Tape (CT) for S4PGHM3_A/H; and bulk for the original S4PGHM3_A/I. Selection depends on assembly process requirements and volume specifications.

Q: Do all substitute parts meet automotive qualification requirements?

A: The S4PGHM3_B/I, S4PGHM3_A/H, S4PG-M3/86A, and S4PG-M3/87A are all manufactured to automotive-grade standards. The S4PGHM3_A/H and S4PGHM3_A/I carry explicit AEC-Q101 certification. Automotive qualification status for S4PGHM3_B/I, S4PG-M3/86A, and S4PG-M3/87A should be confirmed with the manufacturer for applications requiring formal automotive compliance documentation.

Q: Are these parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected. The S4PGHM3_A/I, S4PGHM3_A/H, S4PG-M3/86A, and S4PG-M3/87A all carry explicit ROHS3 compliance certification.

Q: Can I use S4PGHM3_A/H as a replacement for S4PGHM3_A/I?

A: Yes. The S4PGHM3_A/H is a parametric equivalent with identical electrical specifications and mechanical compatibility. Both components carry automotive-grade qualification and AEC-Q101 certification. The primary difference is packaging format: S4PGHM3_A/I is supplied in bulk, while S4PGHM3_A/H is supplied in Cut Tape (CT) format. Both are classified as obsolete.

Q: What is the moisture sensitivity level for these diodes?

A: The S4PGHM3_A/I, S4PGHM3_A/H, S4PG-M3/86A, and S4PG-M3/87A all carry Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.

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