AS1PDHM3/84A Equivalent & Substitute Parts

Part Overview

The AS1PDHM3/84A is an avalanche diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V DC reverse voltage and 1.5 A average rectified current in a surface mount DO-220AA package. This component is classified as Active product status and carries AEC-Q101 automotive qualification. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and compliance certifications are maintained across the same product series and package designation.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.15 @ 1.5 A	V
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	5 @ 200 V	µA
Capacitance @ Vr, F	10.4 @ 4V, 1MHz	pF
Operating Temperature - Junction	-55 to 175	°C
Package / Case	DO-220AA
Technology	Avalanche
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution of the AS1PDHM3/84A is determined by strict equivalence across the following critical parameters:

Reverse Voltage Rating: 200 V maximum DC reverse voltage
Forward Current Rating: 1.5 A average rectified current
Forward Voltage Drop: 1.15 V maximum at 1.5 A
Reverse Recovery Time: 1.5 µs
Reverse Leakage Current: 5 µA at 200 V
Package Type: DO-220AA surface mount
Technology Classification: Avalanche diode
Series Designation: eSMP®
Compliance Status: ROHS3 Compliant, REACH Unaffected, AEC-Q101 qualified

Substitute parts must maintain identical electrical specifications, package footprint, and automotive qualification status. Parts are grouped within the same manufacturer series to ensure design compatibility and performance consistency.

Parameter Comparison

Parameter	AS1PDHM3/84A	AS1PD-M3/84A	Unit
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Category	Diodes, Rectifiers	Diodes, Rectifiers
Series	eSMP®	eSMP®
Technology	Avalanche	Avalanche
Voltage - DC Reverse (Vr) (Max)	200	200	V
Current - Average Rectified (Io)	1.5	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.15 @ 1.5 A	1.15 @ 1.5 A	V
Reverse Recovery Time (trr)	1.5	1.5	µs
Current - Reverse Leakage @ Vr	5 @ 200 V	5 @ 200 V	µA
Capacitance @ Vr, F	10.4 @ 4V, 1MHz	10.4 @ 4V, 1MHz	pF
Package / Case	DO-220AA	DO-220AA
Mounting Type	Surface Mount	Surface Mount
Operating Temperature - Junction	-55 to 175	-55 to 175	°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Active	Active

Engineering Selection Recommendations

Both the AS1PDHM3/84A and AS1PD-M3/84A are Active product status components from Vishay's eSMP® avalanche diode series. Selection between these parts is based on inventory availability and supply chain considerations, as all electrical parameters, package specifications, and compliance certifications are identical.

The AS1PDHM3/84A maintains 9400 pieces in stock inventory, while the AS1PD-M3/84A maintains 9100 pieces. Both components carry ROHS3 compliance, REACH Unaffected status, and AEC-Q101 automotive qualification, making either suitable for applications requiring automotive-grade reliability and environmental compliance.

The DO-220AA surface mount package ensures consistent PCB footprint compatibility across both part numbers. Operating temperature range of -55°C to 175°C junction temperature supports extended automotive and industrial applications.

Frequently Asked Questions (FAQ)

Q: What determines if AS1PD-M3/84A can substitute for AS1PDHM3/84A?

A: Substitution is valid when all electrical parameters match exactly: 200 V reverse voltage rating, 1.5 A average rectified current, 1.15 V forward voltage drop at 1.5 A, 1.5 µs reverse recovery time, and 5 µA reverse leakage current at 200 V. Both parts must use identical DO-220AA surface mount packaging and maintain the same operating temperature range of -55°C to 175°C.

Q: Are there package compatibility concerns between these parts?

A: No. Both AS1PDHM3/84A and AS1PD-M3/84A use the DO-220AA (SMP) surface mount package. PCB footprint, solder pad layout, and mounting requirements are identical, allowing direct substitution without circuit board redesign.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the AS1PDHM3/84A and AS1PD-M3/84A carry AEC-Q101 automotive qualification from Vishay General Semiconductor - Diodes Division. Both are ROHS3 compliant and REACH Unaffected, meeting automotive and industrial compliance standards.

Q: What is the difference between these two part numbers?

A: The AS1PDHM3/84A and AS1PD-M3/84A are parametrically equivalent parts within the same eSMP® series. Differences are limited to internal manufacturing designations and inventory tracking. All functional and electrical specifications are identical.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The identical electrical specifications, package type, temperature range, and compliance certifications allow direct interchangeability in circuit designs. No circuit modifications or re-qualification are required when substituting between these part numbers.

Q: What is the Moisture Sensitivity Level (MSL) for these components?

A: Both parts carry MSL 1 (Unlimited) classification, indicating unlimited shelf life without moisture control requirements during storage and handling.

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