SS8PH9HM3_A/H Equivalent & Substitute Parts

Part Overview

The SS8PH9HM3_A/H is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 90V DC reverse voltage and 8A average rectified current in a surface mount TO-277A (SMPC) package. This component is classified as an automotive-grade diode with AEC-Q101 qualification and is currently in active production status. Substitute parts are identified when equivalent electrical and mechanical specifications 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)	90	V
Current - Average Rectified (Io)	8	A
Voltage - Forward (Vf) (Max) @ If	900 mV @ 8 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	2	µA @ 90 V
Operating Temperature - Junction	-55 to 175	°C
Package / Case	TO-277, 3-PowerDFN	—
Mounting Type	Surface Mount	—
Technology	Schottky	—
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SS8PH9HM3_A/H are identified based on strict equivalence of the following critical parameters:

Voltage Rating: 90V DC reverse voltage (Vr)
Current Rating: 8A average rectified current (Io)
Forward Voltage Drop: 900 mV maximum at 8A forward current
Recovery Speed: Fast recovery ≤ 500ns for currents > 200mA
Reverse Leakage: 2 µA maximum at 90V
Package Type: TO-277, 3-PowerDFN surface mount configuration
Temperature Range: -55°C to 175°C junction operating temperature
Compliance: ROHS3 compliant, AEC-Q101 automotive qualification, MSL 1

All identified substitute parts maintain identical electrical performance characteristics and mechanical compatibility with the main part number. Substitutes are drawn from the same manufacturer base product family (SS8PH9) with variant designations reflecting different manufacturing batches or internal process revisions.

Parameter Comparison

Parameter	SS8PH9HM3_A/H	SS8PH9-M3/86A	SS8PH9-M3/87A
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Technology	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	90 V	90 V	90 V
Current - Average Rectified (Io)	8 A	8 A	8 A
Voltage - Forward (Vf) (Max) @ If	900 mV @ 8 A	900 mV @ 8 A	900 mV @ 8 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	2 µA @ 90 V	2 µA @ 90 V	2 µA @ 90 V
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
Supplier Device Package	TO-277A (SMPC)	TO-277A (SMPC)	TO-277A (SMPC)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
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 part numbers—SS8PH9HM3_A/H, SS8PH9-M3/86A, and SS8PH9-M3/87A—are active production components from Vishay General Semiconductor - Diodes Division with identical electrical and mechanical specifications. Each part maintains ROHS3 compliance, AEC-Q101 automotive qualification, and REACH unaffected status, making them suitable for automotive and industrial applications requiring 90V/8A Schottky rectification.

Selection between these parts is determined by availability and supply chain requirements rather than functional differences. The main part number SS8PH9HM3_A/H carries 1900 pieces in current inventory. The substitute SS8PH9-M3/86A offers significantly higher availability with 65100 pieces in stock. The substitute SS8PH9-M3/87A provides 1290 pieces in inventory.

All parts are packaged in Tape & Reel (TR) format for automated assembly and share identical TO-277A (SMPC) surface mount package geometry, enabling direct board-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can SS8PH9-M3/86A and SS8PH9-M3/87A be used interchangeably with SS8PH9HM3_A/H?

A: Yes. All three part numbers are parametrically equivalent across voltage rating (90V), current rating (8A), forward voltage drop (900 mV @ 8A), recovery speed (≤ 500ns), reverse leakage (2 µA @ 90V), and operating temperature range (-55°C to 175°C). They share identical TO-277A (SMPC) package geometry and surface mount configuration.

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

A: No. All three parts carry AEC-Q101 automotive qualification and are classified as automotive-grade components. Compliance certifications including ROHS3, REACH unaffected status, and MSL 1 (unlimited moisture sensitivity) are identical across all variants.

Q: What determines the part number suffix differences (HM3_A/H versus -M3/86A versus -M3/87A)?

A: The suffix designations reflect internal manufacturing batch or process revision codes assigned by Vishay. These do not indicate functional or electrical differences. All variants meet the same electrical specifications and are drawn from the same SS8PH9 base product family.

Q: Can these parts be used in both through-hole and surface mount applications?

A: No. All three parts are surface mount only, utilizing the TO-277, 3-PowerDFN package configuration. They are not suitable for through-hole mounting applications.

Q: Is there a capacitance specification difference between the main part and substitutes?

A: The main part SS8PH9HM3_A/H specifies capacitance at 140pF @ 4V, 1MHz. The substitute SS8PH9-M3/86A does not provide a capacitance specification in available documentation. The substitute SS8PH9-M3/87A specifies identical capacitance at 140pF @ 4V, 1MHz. For applications where capacitance is a critical parameter, SS8PH9-M3/87A provides documented equivalence.

Q: What is the moisture sensitivity level for these components?

A: All three parts are classified as MSL 1 (Unlimited), indicating unlimited floor life and no special moisture control requirements during storage or handling prior to reflow soldering.

Q: Are these parts suitable for high-temperature automotive applications?

A: Yes. All three parts support junction operating temperatures from -55°C to 175°C, meeting automotive thermal requirements for underhood and high-temperature environments.

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