AR3PDHM3_A/H Equivalent & Substitute Parts

Part Overview

The AR3PDHM3_A/H 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, supply chain disruptions, or manufacturing discontinuation necessitate alternative component selection while maintaining electrical and mechanical compatibility.

Substiute Parts

AR3PDHM3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 834AR3PDHM3_A/H Datasheet

Current PartRFQ

AR3PD-M3/86A

Vishay General Semiconductor - Diodes DivisionIn Stock: 9972AR3PD-M3/86A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AR3PDHM3_A/H is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• 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 @ 4V, 1MHz
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Parameters (Must Match Exactly):

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

Compliance & Qualification (Must Match Exactly):

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

The substitute part AR3PD-M3/86A meets all specified criteria and is therefore classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The AR3PD-M3/86A is a direct parametric equivalent to the AR3PDHM3_A/H and is suitable for substitution in applications requiring identical electrical and mechanical performance. Both components are manufactured by Vishay General Semiconductor - Diodes Division within the eSMP® series and maintain Active product status. Both parts carry ROHS3 compliance and REACH Unaffected designation, ensuring regulatory alignment for automotive and industrial applications. The AR3PD-M3/86A demonstrates higher inventory availability (9920 Pcs versus 777 Pcs), making it a viable alternative for supply chain continuity. Component selection between these two part numbers should be based on availability, lead time, and procurement requirements, as no electrical or mechanical differentiation exists between them.

Frequently Asked Questions (FAQ)

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

A: Yes. The AR3PD-M3/86A is a parametric equivalent with identical electrical specifications, package configuration, and compliance certifications. Direct substitution is supported without circuit modification.

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

A: No. Both components utilize the identical TO-277, 3-PowerDFN package in TO-277A (SMPC) supplier configuration. PCB footprint and mounting procedures are identical.

Q: Do both parts meet automotive qualification requirements?

A: The AR3PDHM3_A/H carries explicit AEC-Q101 automotive qualification. The AR3PD-M3/86A is manufactured by the same division within the same eSMP® series and maintains identical compliance status (ROHS3, REACH Unaffected). Verification of automotive qualification documentation for AR3PD-M3/86A should be obtained from the manufacturer for specific application requirements.

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

A: The part numbers reflect different manufacturing codes or packaging variants within Vishay's product line. The suffix designations (_A/H versus /86A) indicate different manufacturing batches or tape reel configurations, but the electrical and mechanical specifications remain identical.

Q: Are the reverse recovery time and forward voltage characteristics identical?

A: Yes. Both components specify 140 ns reverse recovery time and 1.6 V maximum forward voltage at 3 A. These parameters are critical for fast recovery diode performance and are matched exactly between the two parts.

Q: Can these parts be used interchangeably in high-temperature applications?

A: Yes. Both components operate across the identical junction temperature range of -55°C to 175°C. Thermal performance characteristics are equivalent.

Q: What is the significance of the 44 pF capacitance specification?

A: The 44 pF capacitance measured at 4 V and 1 MHz represents the junction capacitance of the diode. This parameter is identical for both parts and affects switching behavior in high-frequency applications. Equivalence in this parameter ensures matched circuit performance.