SS6P4CHM3/86A Equivalent & Substitute Parts

Part Overview

The SS6P4CHM3/86A is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division, configured as 1 pair common cathode with 40 V reverse voltage rating and 3 A average rectified current per diode. The device is packaged in TO-277, 3-PowerDFN surface mount configuration and operates across a junction temperature range of -55°C to 150°C.

This part is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available to maintain design continuity and ensure component availability for production and repair applications.

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
Mounting Type	Surface Mount
Package / Case	TO-277, 3-PowerDFN
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SS6P4CHM3/86A is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io) (per Diode): 3 A
Voltage - Forward (Vf) (Max) @ If: 650 mV @ 3 A
Current - Reverse Leakage @ Vr: 200 µA @ 40 V
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Mechanical Parameters (Must Match):

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Package / Case: TO-277, 3-PowerDFN
Mounting Type: Surface Mount

Compliance Parameters (Must Match):

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

All substitute parts listed maintain identical electrical and mechanical specifications. Differences in product status, packaging format (Tape & Reel vs. standard), and automotive qualification do not affect functional interchangeability in applications where the main part was originally specified.

Parameter Comparison

Parameter	SS6P4CHM3/86A (Main)	SS6P4CHM3_A/H	SS6P4C-M3/86A	SS6P4C-M3/87A	SS6P4CHM3_A/I
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	40 V	40 V	40 V	40 V	40 V
Current - Average Rectified (Io) (per Diode)	3 A	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	650 mV @ 3 A	650 mV @ 3 A	650 mV @ 3 A	650 mV @ 3 A	650 mV @ 3 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	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	200 µA @ 40 V	200 µA @ 40 V	200 µA @ 40 V	200 µA @ 40 V	200 µA @ 40 V
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-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	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status):

SS6P4C-M3/86A and SS6P4C-M3/87A are parametric equivalents with active product status and current inventory availability. Both parts maintain identical electrical and mechanical specifications to the main part and are suitable for direct replacement in new designs and production applications.

Automotive-Qualified Alternatives:

SS6P4CHM3_A/H and SS6P4CHM3_A/I are automotive-grade variants qualified to AEC-Q101 standard. These parts are functionally equivalent to the main part and provide additional qualification for automotive applications where such certification is required. Both maintain active product status.

Inventory Considerations:

SS6P4C-M3/86A offers the highest current inventory (1437 pcs), followed by SS6P4CHM3_A/I (914 pcs), SS6P4C-M3/87A (734 pcs), and SS6P4CHM3_A/H (830 pcs). Selection should account for project lead time requirements and supply chain continuity.

Compliance Status:

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage processes.

Frequently Asked Questions (FAQ)

Q: Can SS6P4C-M3/86A be used as a direct replacement for SS6P4CHM3/86A?

A: Yes. SS6P4C-M3/86A is a parametric equivalent with identical electrical specifications (40 V reverse voltage, 3 A average rectified current, 650 mV forward voltage at 3 A), identical package configuration (TO-277, 3-PowerDFN), and identical compliance ratings (ROHS3, MSL 1). The part is functionally interchangeable.

Q: What is the difference between SS6P4CHM3_A/H and SS6P4C-M3/86A?

A: Both parts are parametrically equivalent with identical electrical and mechanical specifications. SS6P4CHM3_A/H carries automotive-grade qualification (AEC-Q101) and is supplied in Tape & Reel packaging, while SS6P4C-M3/86A is a standard industrial-grade variant. Selection depends on application requirements and packaging format needs.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts are supplied in Tape & Reel (TR) packaging format. The main part SS6P4CHM3/86A does not specify a packaging format in the provided data. Tape & Reel packaging is standard for surface mount diode arrays and is compatible with automated assembly processes.

Q: Do the automotive-qualified variants (SS6P4CHM3_A/H and SS6P4CHM3_A/I) have different electrical performance?

A: No. Automotive qualification (AEC-Q101) certifies manufacturing and reliability processes but does not alter electrical specifications. SS6P4CHM3_A/H and SS6P4CHM3_A/I maintain identical electrical parameters to all other substitutes: 40 V reverse voltage, 3 A average rectified current, 650 mV forward voltage at 3 A, and 200 µA reverse leakage at 40 V.

Q: Can these parts be used in applications requiring fast recovery characteristics?

A: Yes. All parts in this substitution group, including the main part and all substitutes, are specified as Fast Recovery diodes with recovery time ≤ 500 ns at currents > 200 mA (Io). This specification is maintained across all variants.

Q: What is the significance of the part number suffix variations (e.g., /86A, /87A, _A/H, _A/I)?

A: The suffixes indicate manufacturing date codes and packaging variants assigned by Vishay. These designations do not affect electrical or mechanical specifications. All variants with the same base part number (SS6P4) and identical electrical ratings are functionally equivalent.

Q: Are there any temperature rating differences between the substitute parts?

A: No. All parts maintain identical operating junction temperature range of -55°C to 150°C. Temperature performance is consistent across all variants.

Q: Which substitute part should be selected for new design implementation?

A: SS6P4C-M3/86A is recommended for new designs requiring standard industrial-grade components with active product status and high inventory availability. SS6P4CHM3_A/H or SS6P4CHM3_A/I should be selected if automotive-grade qualification (AEC-Q101) is a design requirement.

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