AS1PJHM3/85A Equivalent & Substitute Parts

Part Overview

The AS1PJHM3/85A is an avalanche diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 600V DC reverse voltage and 1.5A 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 and mechanical parameters are required for design flexibility, inventory management, or supply chain continuity while maintaining identical functional performance in the application circuit.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.15 @ 1.5	V @ A
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	5 @ 600	µA @ V
Capacitance @ Vr, F	10.4 @ 4V, 1MHz	pF
Package / Case	DO-220AA	—
Operating Temperature - Junction	-55 to 175	°C
Technology	Avalanche	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitute parts for the AS1PJHM3/85A are identified based on strict equivalence across the following critical parameters:

Reverse Voltage Rating: 600V DC maximum
Forward Current Rating: 1.5A average rectified current
Forward Voltage Drop: 1.15V maximum at 1.5A
Reverse Recovery Time: 1.5 µs
Reverse Leakage Current: 5 µA at 600V
Junction Capacitance: 10.4 pF at 4V, 1MHz
Package Type: DO-220AA surface mount
Operating Temperature Range: -55°C to 175°C
Technology Classification: Avalanche diode

The substitute part AS1PJ-M3/84A meets all specified electrical and mechanical parameters, enabling direct functional replacement in circuit applications without design modification.

Parameter Comparison

Parameter	AS1PJHM3/85A	AS1PJ-M3/84A	Match
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	✓
Current - Average Rectified (Io)	1.5 A	1.5 A	✓
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 1.5 A	1.15 V @ 1.5 A	✓
Reverse Recovery Time (trr)	1.5 µs	1.5 µs	✓
Current - Reverse Leakage @ Vr	5 µA @ 600 V	5 µA @ 600 V	✓
Capacitance @ Vr, F	10.4 pF @ 4V, 1MHz	10.4 pF @ 4V, 1MHz	✓
Package / Case	DO-220AA	DO-220AA	✓
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C	✓
Technology	Avalanche	Avalanche	✓
Mounting Type	Surface Mount	Surface Mount	✓
Series	eSMP®	eSMP®	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓

Engineering Selection Recommendations

Both AS1PJHM3/85A and AS1PJ-M3/84A are Active product status components manufactured by Vishay General Semiconductor - Diodes Division. Both parts carry AEC-Q101 automotive qualification and comply with ROHS3 and REACH regulatory requirements. Selection between these parts is based on availability and supply chain requirements, as all electrical performance characteristics, thermal operating range, and package specifications are identical. Both components are suitable for applications requiring 600V avalanche diode functionality with 1.5A current handling in surface mount DO-220AA configuration.

Frequently Asked Questions (FAQ)

Q: Can AS1PJ-M3/84A be used as a direct replacement for AS1PJHM3/85A?

A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters including voltage rating, current capacity, forward voltage drop, reverse recovery time, leakage current, junction capacitance, package type, and operating temperature range. No circuit design modification is required.

Q: Are there any differences in automotive qualification between these parts?

A: No. Both AS1PJHM3/85A and AS1PJ-M3/84A carry AEC-Q101 automotive qualification and are classified as Active product status.

Q: Do these parts have identical moisture sensitivity levels?

A: Yes. Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Are the RoHS and REACH compliance statuses the same?

A: Yes. Both parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards.

Q: What is the significance of the DO-220AA package for these diodes?

A: The DO-220AA is a surface mount package designed for high-current rectifier applications. Both substitute parts use this identical package, ensuring compatibility with existing PCB layouts and assembly processes.

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

A: Yes. Both parts operate across the identical junction temperature range of -55°C to 175°C, supporting equivalent thermal performance in extreme temperature environments.

Q: Is there a difference in reverse recovery characteristics between these parts?

A: No. Both parts specify identical reverse recovery time of 1.5 µs and standard recovery speed classification of >500ns at >200mA, ensuring equivalent switching performance.

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