AR4PDHM3_A/H Equivalent & Substitute Parts

Part Overview

The AR4PDHM3_A/H is an avalanche diode manufactured by Vishay General Semiconductor - Diodes Division, classified as a fast recovery rectifier diode. This component operates at 200 V DC reverse voltage with a 2 A average rectified current rating and is housed in a TO-277A surface mount package. The device is qualified to AEC-Q101 automotive standards and maintains active product status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or packaging format preferences.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.6 @ 4	V @ A
Reverse Recovery Time (trr)	140	ns
Current - Reverse Leakage @ Vr	10 @ 200	µA @ V
Capacitance @ Vr, F	77 @ 4V, 1MHz	pF
Operating Temperature - Junction	-55 to 175	°C
Package / Case	TO-277, 3-PowerDFN
Technology	Avalanche
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)

Substitute Part Grouping Explanation

Substitution of the AR4PDHM3_A/H is determined by strict equivalence across all critical electrical parameters and mechanical compatibility. The substitute part AR4PD-M3/86A qualifies as a parametric equivalent based on the following criteria:

Electrical Parameter Equivalence:

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 2 A
Voltage - Forward (Vf) (Max) @ If: 1.6 V @ 4 A
Reverse Recovery Time (trr): 140 ns
Current - Reverse Leakage @ Vr: 10 µA @ 200 V
Capacitance @ Vr, F: 77 pF @ 4V, 1MHz
Operating Temperature - Junction: -55°C to 175°C

Mechanical Compatibility:

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

Compliance & Certification:

Series: eSMP®
Technology: Avalanche
RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected
Base Product Number: AR4

The primary difference between the main part and substitute is the packaging format: AR4PDHM3_A/H is supplied in Tape & Reel (TR) format, while AR4PD-M3/86A is supplied in Cut Tape (CT) format. Both formats contain identical die and electrical characteristics.

Parameter Comparison

Parameter	AR4PDHM3_A/H	AR4PD-M3/86A	Match
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	✓
Current - Average Rectified (Io)	2 A	2 A	✓
Voltage - Forward (Vf) (Max) @ If	1.6 V @ 4 A	1.6 V @ 4 A	✓
Reverse Recovery Time (trr)	140 ns	140 ns	✓
Current - Reverse Leakage @ Vr	10 µA @ 200 V	10 µA @ 200 V	✓
Capacitance @ Vr, F	77 pF @ 4V, 1MHz	77 pF @ 4V, 1MHz	✓
Operating Temperature - Junction	-55°C to 175°C	-55°C to 175°C	✓
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	✓
Supplier Device Package	TO-277A (SMPC)	TO-277A (SMPC)	✓
Mounting Type	Surface Mount	Surface Mount	✓
Series	eSMP®	eSMP®	✓
Technology	Avalanche	Avalanche	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Different

Engineering Selection Recommendations

Both AR4PDHM3_A/H and AR4PD-M3/86A are active products manufactured by Vishay General Semiconductor - Diodes Division and carry identical electrical specifications. Selection between these parts is based on packaging and supply requirements rather than electrical performance.

AR4PDHM3_A/H is appropriate for high-volume automated assembly operations requiring Tape & Reel packaging format. Current inventory is 884 pieces.

AR4PD-M3/86A is appropriate for manual assembly, lower-volume production runs, or applications where Cut Tape format is preferred. Current inventory is 1129 pieces.

Both parts satisfy AEC-Q101 automotive qualification requirements, maintain ROHS3 compliance, and operate across the full -55°C to 175°C junction temperature range. The Moisture Sensitivity Level (MSL) of 1 (Unlimited) applies to both parts, indicating no moisture-related storage restrictions.

Frequently Asked Questions (FAQ)

Q: Can AR4PD-M3/86A be used as a direct replacement for AR4PDHM3_A/H in automated pick-and-place assembly?

A: No. AR4PDHM3_A/H is supplied in Tape & Reel (TR) format, which is compatible with automated assembly equipment. AR4PD-M3/86A is supplied in Cut Tape (CT) format, which requires manual handling or different feeder systems. The electrical performance is identical, but the packaging format determines assembly compatibility.

Q: Are the electrical characteristics identical between these two parts?

A: Yes. Both parts share identical electrical specifications including voltage rating (200 V), current rating (2 A), forward voltage (1.6 V @ 4 A), reverse recovery time (140 ns), reverse leakage current (10 µA @ 200 V), and capacitance (77 pF @ 4V, 1MHz). The only difference is the packaging format.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both AR4PDHM3_A/H and AR4PD-M3/86A are qualified to AEC-Q101 automotive standards and carry active product status from Vishay General Semiconductor - Diodes Division.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on a continuous reel suitable for automated assembly equipment with tape feeders. Cut Tape (CT) packaging supplies components on tape that has been cut into smaller sections, typically used for manual assembly or lower-volume applications.

Q: Are there any compliance or environmental differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited). Environmental and regulatory compliance is equivalent.

Q: Can these parts be used interchangeably in the same circuit design?

A: Yes, from an electrical and thermal perspective. Both parts operate identically within the circuit. However, assembly process compatibility depends on whether your manufacturing process uses automated equipment (requiring Tape & Reel format) or manual assembly (compatible with Cut Tape format).

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