SS8P4CHM3_A/H Equivalent & Substitute Parts

Part Overview

The SS8P4CHM3_A/H is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration with a maximum reverse voltage rating of 40 V and average rectified current of 4 A per diode. The device is housed in a Surface Mount TO-277, 3-PowerDFN package and is qualified to AEC-Q101 automotive standards. The product maintains Active status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same package and configuration specifications.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io) (per Diode)	4 A
Voltage - Forward (Vf) (Max) @ If	580 mV @ 4 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Operating Temperature - Junction	-55°C ~ 150°C
Package / Case	TO-277, 3-PowerDFN
Mounting Type	Surface Mount
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SS8P4CHM3_A/H are identified based on strict equivalence of the following critical parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io) (per Diode): 4 A
Voltage - Forward (Vf) (Max) @ If: 580 mV @ 4 A
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
Operating Temperature - Junction: -55°C ~ 150°C
Package / Case: TO-277, 3-PowerDFN
Mounting Type: Surface Mount
Series: eSMP®
Product Status: Active
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute parts SS8P4C-M3/86A and SS8P4C-M3/87A maintain all critical electrical and mechanical parameters required for direct substitution in applications utilizing the SS8P4CHM3_A/H.

Parameter Comparison

Parameter	SS8P4CHM3_A/H	SS8P4C-M3/86A	SS8P4C-M3/87A
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	40 V	40 V	40 V
Current - Average Rectified (Io) (per Diode)	4 A	4 A	4 A
Voltage - Forward (Vf) (Max) @ If	580 mV @ 4 A	580 mV @ 4 A	580 mV @ 4 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	300 µA @ 30 V	300 µA @ 40 V	300 µA @ 40 V
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Series	eSMP®	eSMP®	eSMP®
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99
HTSUS	8541.10.0080	8541.10.0080	8541.10.0080

Engineering Selection Recommendations

All three parts—SS8P4CHM3_A/H, SS8P4C-M3/86A, and SS8P4C-M3/87A—are Active products manufactured by Vishay General Semiconductor - Diodes Division within the eSMP® series. Each part maintains identical electrical specifications for voltage, current, and thermal operating ranges. All parts are AEC-Q101 qualified for automotive applications, ROHS3 compliant, and carry REACH Unaffected status.

The substitute parts SS8P4C-M3/86A and SS8P4C-M3/87A are direct parametric equivalents suitable for applications currently utilizing the SS8P4CHM3_A/H. Selection between substitute parts may be based on inventory availability and supply chain considerations, as all three parts share identical functional and compliance characteristics.

Frequently Asked Questions (FAQ)

Q: Can SS8P4C-M3/86A and SS8P4C-M3/87A be used interchangeably with SS8P4CHM3_A/H?

A: Yes. All three parts share identical electrical parameters including reverse voltage rating (40 V), average rectified current (4 A per diode), forward voltage (580 mV @ 4 A), and operating temperature range (-55°C ~ 150°C). All are housed in the same TO-277, 3-PowerDFN package with Surface Mount configuration.

Q: Are there differences in reverse leakage current specifications?

A: The SS8P4CHM3_A/H specifies reverse leakage current at 30 V, while SS8P4C-M3/86A and SS8P4C-M3/87A specify the same leakage value at 40 V. This represents a more stringent specification at the maximum rated voltage for the substitute parts.

Q: Do all parts meet automotive qualification requirements?

A: Yes. The SS8P4CHM3_A/H carries AEC-Q101 qualification. The substitute parts SS8P4C-M3/86A and SS8P4C-M3/87A maintain equivalent automotive-grade specifications and compliance status.

Q: Are there any package or mounting differences?

A: No. All three parts utilize the identical TO-277, 3-PowerDFN package with Surface Mount configuration. PCB layout and assembly processes remain unchanged.

Q: What is the difference between the three part numbers?

A: The parts are variants within the same product family with identical electrical and mechanical specifications. Differences are limited to internal manufacturing codes and supply chain designations.

Q: Are all parts RoHS3 compliant?

A: Yes. SS8P4CHM3_A/H, SS8P4C-M3/86A, and SS8P4C-M3/87A are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

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