AR3PDHM3/86A Equivalent & Substitute Parts

Part Overview

The AR3PDHM3/86A is an avalanche diode rated for 200 V DC reverse voltage with 1.8 A average rectified current, packaged in the TO-277A (SMPC) surface mount configuration. This component is manufactured by Vishay General Semiconductor - Diodes Division as part of the eSMP® series and is classified as discontinued at DiGi Electronics. The part exhibits fast recovery characteristics with a reverse recovery time of 140 ns, making it suitable for high-frequency switching applications requiring avalanche protection.

Due to the discontinued status of the AR3PDHM3/86A, equivalent substitute parts with identical electrical and mechanical specifications are available from the same manufacturer. These alternatives maintain full compatibility with the original design while offering active product status and improved supply chain availability.

Key Parameters

Parameter	Value
Technology	Avalanche
Voltage - DC Reverse (Vr) (Max)	200 V
Current - Average Rectified (Io)	1.8 A
Voltage - Forward (Vf) (Max) @ If	1.6 V @ 3 A
Reverse Recovery Time (trr)	140 ns
Current - Reverse Leakage @ Vr	10 µA @ 200 V
Capacitance @ Vr, F	44 pF @ 4 V, 1 MHz
Package / Case	TO-277, 3-PowerDFN
Mounting Type	Surface Mount
Operating Temperature - Junction	-55°C ~ 175°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the AR3PDHM3/86A is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 1.8 A
Voltage - Forward (Vf) (Max) @ If: 1.6 V @ 3 A
Reverse Recovery Time (trr): 140 ns
Current - Reverse Leakage @ Vr: 10 µA @ 200 V
Capacitance @ Vr, F: 44 pF @ 4 V, 1 MHz

Mechanical Equivalence Criteria:

Package / Case: TO-277, 3-PowerDFN
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C ~ 175°C

All substitute parts listed maintain identical electrical performance and mechanical compatibility with the original AR3PDHM3/86A. Differences in packaging format (Tape & Reel versus bulk) and product status (Active versus Discontinued) do not affect functional interchangeability in circuit applications.

Parameter Comparison

Parameter	AR3PDHM3/86A	AR3PDHM3_A/H	AR3PD-M3/86A	AR3PD-M3/87A	AR3PDHM3_A/I
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	1.8 A	1.8 A	1.8 A	1.8 A	1.8 A
Voltage - Forward (Vf) (Max) @ If	1.6 V @ 3 A	1.6 V @ 3 A	1.6 V @ 3 A	1.6 V @ 3 A	1.6 V @ 3 A
Reverse Recovery Time (trr)	140 ns	140 ns	140 ns	140 ns	140 ns
Current - Reverse Leakage @ Vr	10 µA @ 200 V	10 µA @ 200 V	10 µA @ 200 V	10 µA @ 200 V	10 µA @ 200 V
Capacitance @ Vr, F	44 pF @ 4 V, 1 MHz	44 pF @ 4 V, 1 MHz	44 pF @ 4 V, 1 MHz	44 pF @ 4 V, 1 MHz	44 pF @ 4 V, 1 MHz
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
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics	Active	Active	Active	Active
Packaging Format	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
Grade	Standard	Automotive	Standard	Standard	Automotive
Qualification	None Listed	AEC-Q101	None Listed	None Listed	AEC-Q101

Engineering Selection Recommendations

All substitute parts maintain complete electrical and mechanical equivalence to the AR3PDHM3/86A. Selection among the available alternatives is based on product status, supply availability, and application-specific requirements:

AR3PDHM3_A/H and AR3PDHM3_A/I are qualified to AEC-Q101 automotive standards and carry automotive-grade designation. These parts are suitable for applications requiring automotive-level reliability and traceability. Both are available in Tape & Reel packaging with active product status.

AR3PD-M3/86A is the highest-volume alternative with 9920 pieces in stock. This part carries standard-grade designation without automotive qualification. It is available in Tape & Reel packaging with active product status and represents the most readily available substitute.

AR3PD-M3/87A is available in Tape & Reel packaging with active product status and standard-grade designation. This part maintains full electrical and mechanical compatibility with the original design.

All substitute parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental compliance profile of the discontinued AR3PDHM3/86A.

Frequently Asked Questions (FAQ)

Q: Can AR3PDHM3_A/H be used as a direct replacement for AR3PDHM3/86A?

A: Yes. The AR3PDHM3_A/H maintains identical electrical specifications (200 V reverse voltage, 1.8 A average rectified current, 140 ns reverse recovery time) and mechanical compatibility (TO-277A surface mount package). The primary difference is product status (Active versus Discontinued) and packaging format (Tape & Reel versus bulk). The automotive qualification and AEC-Q101 certification of AR3PDHM3_A/H provide additional compliance documentation if required by application standards.

Q: What is the difference between AR3PD-M3/86A and AR3PDHM3_A/H?

A: Both parts are electrically and mechanically identical. AR3PDHM3_A/H carries automotive-grade designation and AEC-Q101 qualification, while AR3PD-M3/86A is standard-grade without automotive qualification. AR3PD-M3/86A has significantly higher inventory availability (9920 pieces versus 777 pieces). Selection depends on whether automotive-level traceability and qualification are required for the application.

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

A: The original AR3PDHM3/86A is supplied in bulk packaging. All substitute parts (AR3PDHM3_A/H, AR3PD-M3/86A, AR3PD-M3/87A, AR3PDHM3_A/I) are supplied in Tape & Reel (TR) format. This difference affects handling and assembly processes but does not impact electrical or mechanical performance.

Q: Do the substitute parts meet the same environmental compliance standards?

A: Yes. All substitute parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating, identical to the original AR3PDHM3/86A. Additionally, AR3PDHM3_A/H and AR3PDHM3_A/I carry AEC-Q101 automotive qualification, providing enhanced compliance documentation for automotive applications.

Q: Which substitute part should be selected for new designs?

A: AR3PD-M3/86A is recommended for standard applications due to highest inventory availability and active product status. For automotive applications or designs requiring automotive-level qualification, AR3PDHM3_A/H or AR3PDHM3_A/I are appropriate selections due to AEC-Q101 certification and automotive-grade designation.

Q: Is the reverse recovery time specification identical across all parts?

A: Yes. All parts, including the original AR3PDHM3/86A and all substitutes, specify 140 ns reverse recovery time. This parameter is critical for fast-switching applications and remains constant across all equivalent parts.

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