VS-8TQ080SPBF Equivalent & Substitute Parts

Part Overview

The VS-8TQ080SPBF is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 80 V DC reverse voltage and 8 A average rectified current in a Surface Mount TO-263AB (D2PAK) package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	80 V
Current - Average Rectified (Io)	8 A
Voltage - Forward (Vf) (Max) @ If	720 mV @ 8 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	550 µA @ 80 V
Capacitance @ Vr, F	500 pF @ 5 V, 1 MHz
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type	Surface Mount
Operating Temperature - Junction	-55°C ~ 175°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the VS-8TQ080SPBF is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Parameters for Substitution:

Technology: Schottky rectifier diode
Voltage - DC Reverse (Vr) (Max): 80 V minimum
Current - Average Rectified (Io): 8 A
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C ~ 175°C minimum range

Substitute Categories:

Direct Manufacturer Equivalents (Vishay): Parts with identical electrical specifications and packaging, differing only in packaging format (Tube vs. Tape & Reel) or automotive qualification.

Parametric Equivalents (Vishay Automotive Grade): Parts meeting or exceeding all electrical parameters with AEC-Q101 automotive qualification, available in Tape & Reel packaging.

Cross-Manufacturer Equivalent (STMicroelectronics): Part with equivalent or superior electrical performance and identical mechanical compatibility, though with higher voltage rating (100 V vs. 80 V).

Parameter Comparison

Parameter	VS-8TQ080SPBF	VS-8TQ080S-M3	VS-8TQ080STRLHM3	VS-8TQ080STRRHM3	STPS8H100G-TR
Manufacturer	Vishay	Vishay	Vishay	Vishay	STMicroelectronics
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	80 V	80 V	80 V	80 V	100 V
Current - Average Rectified (Io)	8 A	8 A	8 A	8 A	8 A
Voltage - Forward (Vf) (Max) @ If	720 mV @ 8 A	720 mV @ 8 A	720 mV @ 8 A	720 mV @ 8 A	710 mV @ 8 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA	Fast Recovery ≤ 500 ns, > 200 mA	Fast Recovery ≤ 500 ns, > 200 mA	Fast Recovery ≤ 500 ns, > 200 mA	Fast Recovery ≤ 500 ns, > 200 mA
Current - Reverse Leakage @ Vr	550 µA @ 80 V	550 µA @ 80 V	550 µA @ 80 V	550 µA @ 80 V	4.5 µA @ 100 V
Capacitance @ Vr, F	500 pF @ 5 V, 1 MHz	500 pF @ 5 V, 1 MHz	500 pF @ 5 V, 1 MHz	500 pF @ 5 V, 1 MHz	Not specified
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C	175°C (Max)
Product Status	Discontinued	Active	Active	Active	Active
Packaging Format	Not specified	Tube	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®
Automotive Grade	No	No	AEC-Q101	AEC-Q101	Not specified
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

VS-8TQ080S-M3 (Vishay - Direct Equivalent, Tube Packaging)

This part is a direct electrical and mechanical equivalent to the VS-8TQ080SPBF with identical specifications. It is currently in active production status with 1262 pieces in stock. Selection of this part is appropriate for applications requiring standard industrial-grade Schottky rectification without automotive qualification requirements. The Tube packaging format differs from the original part specification but maintains full electrical compatibility.

VS-8TQ080STRLHM3 (Vishay - Automotive Grade, Tape & Reel)

This part meets all electrical specifications of the VS-8TQ080SPBF and adds AEC-Q101 automotive qualification. It is available in Tape & Reel packaging with 886 pieces in stock and active production status. Selection of this part is appropriate for applications requiring automotive-grade reliability or for designs transitioning to automotive-qualified component libraries. The automotive qualification provides additional process and reliability documentation.

VS-8TQ080STRRHM3 (Vishay - Automotive Grade, Tape & Reel)

This part is electrically and mechanically identical to VS-8TQ080STRLHM3, with AEC-Q101 automotive qualification and Tape & Reel packaging. It has 808 pieces in stock and active production status. Selection between this part and VS-8TQ080STRLHM3 is determined by packaging reel specifications and supplier availability.

STPS8H100G-TR (STMicroelectronics - Higher Voltage Rating)

This part exceeds the electrical specifications of the VS-8TQ080SPBF with a 100 V DC reverse voltage rating (versus 80 V) and lower reverse leakage current (4.5 µA @ 100 V versus 550 µA @ 80 V). It maintains identical 8 A current rating, forward voltage performance, and D2PAK package compatibility. It is available in Cut Tape & Digi-Reel® packaging with 7000 pieces in stock and active production status. Selection of this part is appropriate for applications where higher voltage margin is beneficial or where STMicroelectronics supply chain preference exists. The higher voltage rating does not degrade performance in 80 V applications.

Frequently Asked Questions (FAQ)

Q: Can VS-8TQ080S-M3 be used as a direct replacement for VS-8TQ080SPBF?

A: Yes. VS-8TQ080S-M3 is electrically and mechanically identical to VS-8TQ080SPBF. Both are Schottky rectifier diodes with 80 V reverse voltage, 8 A current rating, and TO-263AB (D2PAK) Surface Mount packaging. The only difference is packaging format (Tube versus unspecified original format). PCB layout and circuit performance are unaffected.

Q: What is the difference between the Vishay automotive-grade parts (VS-8TQ080STRLHM3 and VS-8TQ080STRRHM3) and the standard-grade part (VS-8TQ080S-M3)?

A: The automotive-grade parts carry AEC-Q101 qualification, indicating compliance with automotive industry reliability and testing standards. Electrical and mechanical specifications are identical. Automotive qualification is required for automotive applications or designs using automotive-qualified component libraries. For non-automotive applications, standard-grade parts are functionally equivalent.

Q: Why does STPS8H100G-TR have a higher voltage rating (100 V) than the original part (80 V)?

A: STPS8H100G-TR is a higher-voltage variant from STMicroelectronics. The 100 V rating provides additional voltage margin in the same package. This part is electrically compatible with 80 V applications and provides improved reverse leakage performance (4.5 µA versus 550 µA). Higher voltage rating does not degrade performance in lower-voltage circuits.

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

A: No. VS-8TQ080SPBF packaging format is not specified in available data. VS-8TQ080S-M3 is supplied in Tube format. VS-8TQ080STRLHM3 and VS-8TQ080STRRHM3 are supplied in Tape & Reel (TR) format. STPS8H100G-TR is supplied in Cut Tape (CT) & Digi-Reel® format. All parts use identical TO-263AB (D2PAK) Surface Mount package, ensuring PCB footprint compatibility. Packaging format selection depends on assembly process requirements.

Q: Which substitute part should be selected for new designs?

A: For new designs, VS-8TQ080S-M3 provides direct equivalence with active production status and adequate inventory. For automotive applications or designs requiring automotive qualification, VS-8TQ080STRLHM3 or VS-8TQ080STRRHM3 are appropriate. For applications benefiting from higher voltage margin and improved leakage performance, STPS8H100G-TR is suitable. Selection depends on application requirements, supply chain preference, and qualification status.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (VS-8TQ080S-M3, VS-8TQ080STRLHM3, VS-8TQ080STRRHM3, and STPS8H100G-TR) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the operating temperature range for each substitute part?

A: VS-8TQ080S-M3, VS-8TQ080STRLHM3, and VS-8TQ080STRRHM3 all operate from -55°C to 175°C junction temperature. STPS8H100G-TR specifies 175°C maximum junction temperature without lower limit specification in provided data. For applications requiring full -55°C to 175°C range, Vishay parts provide explicit specification.

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