AS4PDHM3/86A Equivalent & Substitute Parts

Part Overview

The AS4PDHM3/86A is an avalanche diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V DC reverse voltage and 2.4 A average rectified current in a surface mount TO-277A (SMPC) package. This component is part of the eSMP® series and is classified as a standard recovery rectifier diode.

The AS4PDHM3/86A has been discontinued at DiGi Electronics. Equivalent and substitute parts are available from the same manufacturer with identical or compatible electrical and mechanical specifications, ensuring functional replacement in circuit applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	2.4	A
Voltage - Forward (Vf) (Max) @ If	962 mV @ 2 A	mV @ A
Reverse Recovery Time (trr)	1.8	µs
Current - Reverse Leakage @ Vr	10	µA @ 200 V
Capacitance @ Vr, F	60	pF @ 4V, 1MHz
Operating Temperature - Junction	-55 to 175	°C
Package / Case	TO-277, 3-PowerDFN
Mounting Type	Surface Mount
Technology	Avalanche

Substitute Part Grouping Explanation

Substitution of the AS4PDHM3/86A is determined by the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 2.4 A
Reverse Recovery Time (trr): 1.8 µs
Current - Reverse Leakage @ Vr: 10 µA @ 200 V
Capacitance @ Vr, F: 60 pF @ 4V, 1MHz
Operating Temperature - Junction: -55°C to 175°C
Technology: Avalanche

Mechanical Equivalence Criteria:

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

Compliance Criteria:

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

Substitute parts maintain all critical electrical parameters and mechanical form factor. Variations in forward voltage characteristics and packaging format (Tape & Reel versus bulk) do not affect functional substitution.

Parameter Comparison

Parameter	AS4PDHM3/86A (Main)	AS4PDHM3_A/H	AS4PD-M3/86A	AS4PD-M3/87A
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	2.4 A	2.4 A	2.4 A	2.4 A
Voltage - Forward (Vf) (Max) @ If	962 mV @ 2 A	1.1 V @ 4 A	962 mV @ 2 A	962 mV @ 2 A
Reverse Recovery Time (trr)	1.8 µs	1.8 µs	1.8 µs	1.8 µs
Current - Reverse Leakage @ Vr	10 µA @ 200 V	10 µA @ 200 V	10 µA @ 200 V	10 µA @ 200 V
Capacitance @ Vr, F	60 pF @ 4V, 1MHz	60 pF @ 4V, 1MHz	60 pF @ 4V, 1MHz	60 pF @ 4V, 1MHz
Operating Temperature - Junction	-55°C to 175°C	-55°C to 175°C	-55°C to 175°C	-55°C to 175°C
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Discontinued at DiGi Electronics	Active	Active	Active
Inventory Availability	855 Pcs	777 Pcs	4300 Pcs	998 Pcs
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

AS4PD-M3/86A is the primary parametric equivalent. This part maintains identical electrical specifications to the AS4PDHM3/86A, including forward voltage characteristics at 962 mV @ 2 A. The AS4PD-M3/86A is currently in active product status with the highest inventory availability (4300 Pcs), ensuring supply continuity. Both parts are ROHS3 compliant and carry MSL 1 rating.

AS4PD-M3/87A is a secondary parametric equivalent with identical electrical performance to AS4PDHM3/86A. This part is active and available with 998 Pcs in stock. Selection between AS4PD-M3/86A and AS4PD-M3/87A depends on procurement lead times and inventory requirements.

AS4PDHM3_A/H is a direct manufacturer equivalent with automotive-grade qualification (AEC-Q101). This part differs in forward voltage specification (1.1 V @ 4 A versus 962 mV @ 2 A) and includes automotive qualification. The AS4PDHM3_A/H is supplied in Tape & Reel packaging format and is active with 777 Pcs available. Selection of this part is appropriate for automotive applications requiring AEC-Q101 compliance.

All substitute parts are surface mount TO-277A (SMPC) package components with identical mechanical form factor and mounting requirements. All parts maintain the same operating temperature range (-55°C to 175°C) and reverse recovery time (1.8 µs).

Frequently Asked Questions (FAQ)

Q: Can AS4PD-M3/86A directly replace AS4PDHM3/86A?

A: Yes. AS4PD-M3/86A is a parametric equivalent with identical electrical specifications across all critical parameters: 200 V reverse voltage, 2.4 A average rectified current, 1.8 µs reverse recovery time, and 962 mV forward voltage @ 2 A. Both use the same TO-277A (SMPC) surface mount package.

Q: What is the difference between AS4PDHM3_A/H and AS4PDHM3/86A?

A: AS4PDHM3_A/H includes automotive-grade qualification (AEC-Q101) and differs in forward voltage specification (1.1 V @ 4 A versus 962 mV @ 2 A). All other electrical parameters remain identical. The AS4PDHM3_A/H is supplied in Tape & Reel packaging.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use the TO-277, 3-PowerDFN package with TO-277A (SMPC) supplier device package designation. All are surface mount components with identical mechanical form factor and PCB footprint compatibility.

Q: Which substitute part has the best availability?

A: AS4PD-M3/86A has the highest inventory availability with 4300 Pcs in stock, compared to 998 Pcs for AS4PD-M3/87A and 777 Pcs for AS4PDHM3_A/H.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and REACH unaffected status.

Q: What is the difference between AS4PD-M3/86A and AS4PD-M3/87A?

A: Both parts are parametric equivalents with identical electrical specifications. The difference is in the part number suffix (/86A versus /87A). Both maintain 200 V reverse voltage, 2.4 A current rating, and 962 mV forward voltage @ 2 A. Selection between these parts depends on procurement availability and lead time requirements.

Q: Can AS4PDHM3_A/H be used in non-automotive applications?

A: Yes. AS4PDHM3_A/H meets

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