VS-30CTQ080PBF Equivalent & Substitute Parts

Part Overview

The VS-30CTQ080PBF is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 80 V DC reverse voltage and 15 A average rectified current per diode in a Through Hole TO-220-3 package. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design requirements and production needs.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	80 V
Current - Average Rectified (Io) (per Diode)	15 A
Voltage - Forward (Vf) (Max) @ If	860 mV @ 15 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	550 µA @ 80 V
Operating Temperature - Junction	-55°C ~ 175°C
Mounting Type	Through Hole
Package / Case	TO-220-3
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the VS-30CTQ080PBF are classified based on the following substitution criteria:

Direct Manufacturer Equivalent: Parts sharing identical electrical specifications, diode configuration, voltage rating, current rating, and package type. These substitutes maintain full functional and mechanical compatibility.

Parametric Equivalent: Parts meeting or exceeding the core electrical requirements (Vr, Io, Vf, temperature range) with identical diode configuration and package compatibility. These may include automotive-grade variants with additional qualification standards.

MFR Recommended Substitute: Parts from alternative manufacturers that satisfy the primary electrical requirements with potential variations in secondary parameters such as reverse leakage current or forward voltage characteristics. These require verification of application-specific tolerance requirements.

The critical parameters determining substitution eligibility are:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): ≥ 80 V
Current - Average Rectified (Io) (per Diode): ≥ 15 A
Mounting Type: Through Hole
Package / Case: TO-220-3 or compatible variant

Parameter Comparison

Parameter	VS-30CTQ080PBF	VS-30CTQ080-M3	VS-30CTQ080HN3	STPS30H100CT
Manufacturer	Vishay	Vishay	Vishay	STMicroelectronics
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	80 V	80 V	80 V	100 V
Current - Average Rectified (Io) (per Diode)	15 A	15 A	15 A	15 A
Voltage - Forward (Vf) (Max) @ If	860 mV @ 15 A	1.05 V @ 30 A	860 mV @ 15 A	800 mV @ 15 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	550 µA @ 80 V	550 µA @ 80 V	550 µA @ 80 V	5 µA @ 100 V
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C	-40°C ~ 175°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Product Status	Discontinued	Active	Active	Active
RoHS Status	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

VS-30CTQ080-M3 (Direct Manufacturer Equivalent)

The VS-30CTQ080-M3 is the primary direct equivalent, manufactured by Vishay General Semiconductor - Diodes Division. This part maintains identical electrical specifications to the VS-30CTQ080PBF with matching diode configuration, voltage rating, and current rating. The primary distinction is packaging format (Tube versus unspecified for the original part). Product status is Active, ensuring continued availability. This substitute provides the highest level of functional and mechanical compatibility.

VS-30CTQ080HN3 (Parametric Equivalent with Automotive Qualification)

The VS-30CTQ080HN3 is a parametric equivalent manufactured by Vishay with identical core electrical specifications. This variant includes automotive-grade qualification (AEC-Q101) and is suitable for applications requiring automotive compliance standards. The package designation is TO-220AB, which is mechanically compatible with TO-220-3 applications. Product status is Active. This substitute is appropriate for designs requiring automotive-grade components.

STPS30H100CT (MFR Recommended Substitute)

The STPS30H100CT is manufactured by STMicroelectronics and represents a higher voltage-rated alternative. This part exceeds the voltage requirement with a 100 V DC reverse rating compared to the 80 V specification of the original part. Current rating remains at 15 A per diode. Forward voltage is slightly lower at 800 mV @ 15 A. Reverse leakage current is significantly lower at 5 µA @ 100 V compared to 550 µA @ 80 V. Operating temperature range is -40°C to 175°C, with the lower bound 15°C higher than the original specification. Product status is Active with substantial inventory availability. This substitute is applicable where higher voltage margin and lower leakage characteristics are acceptable within the application design envelope.

Frequently Asked Questions (FAQ)

Q: Can VS-30CTQ080-M3 be used as a direct replacement for VS-30CTQ080PBF?

A: Yes. The VS-30CTQ080-M3 is a direct manufacturer equivalent with identical electrical specifications, diode configuration, voltage rating, current rating, and package type. The only difference is the packaging format (Tube). Both parts are manufactured by Vishay General Semiconductor - Diodes Division and are functionally interchangeable.

Q: What is the difference between VS-30CTQ080HN3 and VS-30CTQ080PBF?

A: The VS-30CTQ080HN3 shares identical core electrical specifications with the VS-30CTQ080PBF. The key differences are: (1) VS-30CTQ080HN3 includes automotive-grade qualification (AEC-Q101), (2) package designation is TO-220AB versus TO-220-3, and (3) product status is Active versus Discontinued. Both are mechanically and functionally compatible for standard applications.

Q: Is STPS30H100CT a suitable replacement for VS-30CTQ080PBF?

A: STPS30H100CT can serve as a substitute where the application design permits higher voltage rating. The part exceeds the 80 V requirement with 100 V rating and maintains the 15 A current specification. However, the lower operating temperature minimum (-40°C versus -55°C) and different reverse leakage characteristics (5 µA versus 550 µA) must be evaluated against specific application requirements.

Q: Are all substitute parts RoHS3 compliant?

A: VS-30CTQ080-M3 compliance status is not specified in available documentation. VS-30CTQ080HN3 and STPS30H100CT are both ROHS3 Compliant. Verification of RoHS compliance should be confirmed with the component supplier for the specific production lot.

Q: What are the package compatibility considerations?

A: All substitute parts use TO-220-3 or TO-220AB package types, which are mechanically compatible for Through Hole mounting applications. TO-220AB is a variant designation of TO-220-3 and maintains identical pin configuration and mounting footprint. No PCB redesign is required for package substitution.

Q: Can these parts be used interchangeably in automotive applications?

A: VS-30CTQ080HN3 includes AEC-Q101 automotive qualification and is suitable for automotive applications. VS-30CTQ080-M3 and STPS30H100CT do not specify automotive qualification. Application of non-automotive-qualified parts in automotive designs requires design review and approval per applicable automotive standards.

Q: What is the significance of the reverse leakage current difference in STPS30H100CT?

A: STPS30H100CT exhibits significantly lower reverse leakage current (5 µA @ 100 V) compared to the original part (550 µA @ 80 V). This characteristic may provide advantages in low-power or high-impedance circuit applications. However, the application circuit design must accommodate this parameter difference to ensure proper operation.

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