AR3PDHM3_A/I Equivalent & Substitute Parts

Part Overview

The AR3PDHM3_A/I is an avalanche diode manufactured by Vishay General Semiconductor - Diodes Division, designed for surface mount applications in the TO-277A (SMPC) package. This component operates at 200 V DC reverse voltage with an average rectified current of 1.8 A and features fast recovery characteristics with a reverse recovery time of 140 ns. The part is classified as Active and carries automotive-grade qualification under AEC-Q101 standards. Substitute parts are identified when inventory constraints, lead time requirements, or supply chain considerations necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	1.8	A
Voltage - Forward (Vf) (Max) @ If	1.6 @ 3	V @ A
Reverse Recovery Time (trr)	140	ns
Current - Reverse Leakage @ Vr	10 @ 200	µA @ V
Capacitance @ Vr, F	44 @ 4, 1MHz	pF @ V, MHz
Package / Case	TO-277, 3-PowerDFN
Operating Temperature - Junction	-55 to 175	°C
Technology	Avalanche
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)

Substitute Part Grouping Explanation

Substitution of the AR3PDHM3_A/I is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

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
Speed Classification: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Mechanical Parameters:

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

Compliance & Qualification:

Technology: Avalanche
Series: eSMP®
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

Parts meeting all specified parameters are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Parameter	AR3PDHM3_A/I	AR3PD-M3/86A	Match
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	Yes
Current - Average Rectified (Io)	1.8 A	1.8 A	Yes
Voltage - Forward (Vf) (Max) @ If	1.6 V @ 3 A	1.6 V @ 3 A	Yes
Reverse Recovery Time (trr)	140 ns	140 ns	Yes
Current - Reverse Leakage @ Vr	10 µA @ 200 V	10 µA @ 200 V	Yes
Capacitance @ Vr, F	44 pF @ 4 V, 1 MHz	44 pF @ 4 V, 1 MHz	Yes
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Yes
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	Yes
Supplier Device Package	TO-277A (SMPC)	TO-277A (SMPC)	Yes
Mounting Type	Surface Mount	Surface Mount	Yes
Operating Temperature - Junction	-55°C to 175°C	-55°C to 175°C	Yes
Technology	Avalanche	Avalanche	Yes
Series	eSMP®	eSMP®	Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Yes
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Yes
REACH Status	REACH Unaffected	REACH Unaffected	Yes

Engineering Selection Recommendations

The AR3PD-M3/86A is a direct parametric equivalent to the AR3PDHM3_A/I. Both components are manufactured by Vishay General Semiconductor - Diodes Division and share identical electrical specifications, mechanical packaging, and compliance certifications.

Selection Basis:

Both parts maintain Active product status and carry AEC-Q101 automotive-grade qualification. Both are ROHS3 compliant with REACH Unaffected status, suitable for applications requiring regulatory compliance in automotive and industrial environments.

The AR3PD-M3/86A offers higher inventory availability (9920 pcs vs. 783 pcs), making it suitable for applications where supply continuity is a consideration. The identical electrical and mechanical parameters ensure direct substitution without circuit redesign or board layout modification.

Selection between these parts should be based on availability, lead time, and supply chain requirements rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can AR3PD-M3/86A be used as a direct replacement for AR3PDHM3_A/I?

A: Yes. Both parts are parametric equivalents with identical electrical specifications (200 V reverse voltage, 1.8 A average rectified current, 140 ns reverse recovery time), identical mechanical packaging (TO-277A SMPC), and identical compliance certifications (AEC-Q101, ROHS3, REACH Unaffected). No circuit or board modifications are required.

Q: Are there any differences in the TO-277A (SMPC) package between these parts?

A: No. Both parts use the identical TO-277, 3-PowerDFN package designation with TO-277A (SMPC) supplier device package specification. Pin configuration, footprint, and mounting requirements are identical.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both AR3PDHM3_A/I and AR3PD-M3/86A carry AEC-Q101 automotive-grade qualification and are ROHS3 compliant with REACH Unaffected status.

Q: What is the difference between these part numbers?

A: The part numbers reflect different manufacturing batches or distribution channels from Vishay General Semiconductor - Diodes Division. The electrical performance, packaging, and compliance certifications are identical.

Q: Can these parts be mixed in the same production run?

A: Yes. The identical electrical specifications, package dimensions, and compliance certifications allow these parts to be used interchangeably within the same circuit design and production environment.

Q: What is the operating temperature range for both parts?

A: Both parts operate across a junction temperature range of -55°C to 175°C, suitable for automotive and industrial applications.

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