SS6P4CHM3_A/I Equivalent & Substitute Parts

Part Overview

The SS6P4CHM3_A/I is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 40 V DC reverse voltage and 3 A average rectified current per diode. The device is housed in a TO-277, 3-PowerDFN surface mount package and is qualified to AEC-Q101 automotive standards. The part is currently in active production status with 914 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

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)	3 A
Voltage - Forward (Vf) (Max) @ If	650 mV @ 3 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	200 µA @ 40 V
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 SS6P4CHM3_A/I are identified based on electrical and mechanical parameter equivalence. The substitution criteria are strictly limited to the following parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io) (per Diode): 3 A
Voltage - Forward (Vf) (Max) @ If: 650 mV @ 3 A
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr: 200 µA @ 40 V
Operating Temperature - Junction: -55°C ~ 150°C
Package / Case: TO-277, 3-PowerDFN
Mounting Type: Surface Mount

Parts meeting all of these criteria are classified as parametric equivalents and direct substitutes. Variations in manufacturer part number suffix or date code do not affect functional equivalence when all electrical and mechanical parameters remain identical.

Parameter Comparison

Parameter	SS6P4CHM3_A/I	SS6P4C-M3/86A
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Category	Diodes, Rectifiers	Diodes, Rectifiers
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	40 V	40 V
Current - Average Rectified (Io) (per Diode)	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	650 mV @ 3 A	650 mV @ 3 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	200 µA @ 40 V	200 µA @ 40 V
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
Mounting Type	Surface Mount	Surface Mount
Series	eSMP®	eSMP®
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both the SS6P4CHM3_A/I and SS6P4C-M3/86A are active production parts manufactured by Vishay General Semiconductor - Diodes Division. Both components carry identical electrical specifications, mechanical packaging, and regulatory compliance certifications. The SS6P4C-M3/86A offers higher current inventory availability at 1437 units compared to 914 units for the SS6P4CHM3_A/I. Both parts are AEC-Q101 qualified for automotive applications, ROHS3 compliant, and REACH unaffected. Selection between these parts is based on procurement requirements, inventory availability, and lead time considerations, as all functional and compliance parameters are equivalent.

Frequently Asked Questions (FAQ)

Q: Are SS6P4CHM3_A/I and SS6P4C-M3/86A direct substitutes?

A: Yes. Both parts are parametric equivalents with identical electrical ratings, diode configuration, package type, and operating temperature range. All key specifications including voltage, current, forward voltage drop, and reverse leakage are identical.

Q: What does the part number suffix difference indicate?

A: The suffix variation (CHM3_A/I versus C-M3/86A) reflects different manufacturing date codes or internal Vishay part numbering conventions. These suffixes do not indicate functional differences when all electrical and mechanical parameters remain identical.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Both parts use the identical TO-277, 3-PowerDFN surface mount package with the same pinout and land pattern. No PCB redesign or layout modification is required for substitution.

Q: Are both parts suitable for automotive applications?

A: Yes. Both SS6P4CHM3_A/I and SS6P4C-M3/86A carry AEC-Q101 qualification and automotive grade designation, meeting automotive industry reliability and quality standards.

Q: What is the difference in inventory availability?

A: SS6P4C-M3/86A has 1437 units in stock, while SS6P4CHM3_A/I has 914 units in stock. Inventory levels may influence procurement decisions for high-volume production requirements.

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

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity level (MSL 1 - Unlimited). Regulatory and environmental compliance status is identical.

Q: What is the maximum operating temperature for these diodes?

A: The maximum junction operating temperature is 150°C for both parts. The minimum operating temperature is -55°C, providing a total operating range of -55°C to 150°C.

Q: What is the reverse voltage rating?

A: Both parts are rated for a maximum DC reverse voltage (Vr) of 40 V. Reverse leakage current is specified at 200 µA when 40 V is applied.

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