Equivalent & Substitute Parts for 30BQ015

Part Overview

The 30BQ015 is a Schottky diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 15 V DC reverse voltage and 3 A average rectified current in a DO-214AB surface mount package. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design requirements and procurement needs. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with modified parameters suitable for specific application requirements.

Substiute Parts

30BQ015

Vishay General Semiconductor - Diodes DivisionIn Stock: 311930BQ015 Datasheet

Current PartRFQ

VS-30BQ015HM3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 5107VS-30BQ015HM3/9AT Datasheet

Parametric EquivalentRFQ

STPS340S

STMicroelectronicsIn Stock: 50815STPS340S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 30BQ015 Schottky diode is determined by the following critical parameters:

Parametric Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 15 V minimum
• Current - Average Rectified (Io): 3 A minimum
• Voltage - Forward (Vf) (Max) @ If: 350 mV @ 3 A maximum
• Package / Case: DO-214AB, SMC
• Technology: Schottky
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Substitute Part Criteria:

• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 15 V
• Current - Average Rectified (Io): Equal to or greater than 3 A
• Package / Case: DO-214AB, SMC compatible
• Technology: Schottky
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Parts meeting parametric equivalence criteria are direct replacements. Parts exceeding voltage or current ratings while maintaining package compatibility and electrical characteristics are functional substitutes suitable for applications where higher ratings provide design margin.

Parameter Comparison

Engineering Selection Recommendations

VS-30BQ015HM3/9AT (Parametric Equivalent):

The VS-30BQ015HM3/9AT is a parametric equivalent manufactured by Vishay General Semiconductor - Diodes Division. This part maintains identical electrical specifications to the 30BQ015 across all critical parameters: 15 V reverse voltage, 3 A average rectified current, 350 mV forward voltage at 3 A, and fast recovery characteristics. The part is classified as active with automotive-grade qualification (AEC-Q101) and is available in Tape & Reel packaging. This part is suitable for direct replacement in applications requiring the original 30BQ015 specifications.

STPS340S (Functional Substitute):

The STPS340S is a functional substitute manufactured by STMicroelectronics. This part exceeds the voltage rating of the 30BQ015 (40 V versus 15 V) while maintaining the 3 A current rating and fast recovery characteristics. The forward voltage specification is higher at 630 mV @ 3 A compared to 350 mV @ 3 A for the 30BQ015. The STPS340S is classified as active and RoHS3 compliant. This part is suitable for applications where higher reverse voltage rating provides design margin, provided the increased forward voltage drop is acceptable for the circuit design.

Frequently Asked Questions (FAQ)

Q: Can VS-30BQ015HM3/9AT be used as a direct replacement for 30BQ015?

A: Yes. The VS-30BQ015HM3/9AT is a parametric equivalent with identical electrical specifications: 15 V reverse voltage, 3 A current rating, 350 mV forward voltage at 3 A, and fast recovery characteristics. Both parts use the DO-214AB surface mount package. The primary difference is product status: 30BQ015 is obsolete while VS-30BQ015HM3/9AT is active.

Q: When should STPS340S be selected instead of VS-30BQ015HM3/9AT?

A: The STPS340S should be selected when the application circuit can accommodate a higher reverse voltage rating (40 V versus 15 V) and when the increased forward voltage drop (630 mV @ 3 A versus 350 mV @ 3 A) is acceptable. The STPS340S provides design margin for circuits operating near the 15 V limit of the original specification.

Q: Are all three parts compatible with the same PCB footprint?

A: Yes. All three parts use the DO-214AB surface mount package, ensuring mechanical and footprint compatibility on existing PCB designs.

Q: What is the difference between the packaging options for these parts?

A: The 30BQ015 is listed with unspecified packaging. The VS-30BQ015HM3/9AT is available in Cut Tape (CT) and Digi-Reel® formats, with Tape & Reel (TR) as the standard packaging. The STPS340S is available in Cut Tape (CT) and Digi-Reel® formats. Packaging selection depends on procurement volume and assembly requirements.

Q: Does the STPS340S have any compliance advantages?

A: Yes. The STPS340S is RoHS3 compliant, whereas the 30BQ015 is RoHS non-compliant. For applications requiring RoHS compliance, the STPS340S is the appropriate selection. The VS-30BQ015HM3/9AT RoHS status is not specified in the provided data.

Q: What is the temperature operating range difference between these parts?

A: The 30BQ015 and VS-30BQ015HM3/9AT both operate from -55°C to 125°C junction temperature. The STPS340S has a maximum junction temperature of 150°C, providing additional thermal margin in high-temperature applications.

Q: Are there any automotive qualification differences?

A: The VS-30BQ015HM3/9AT carries automotive-grade qualification (AEC-Q101). The 30BQ015 and STPS340S automotive qualification status is not specified in the provided data.