BAV202-GS18 Equivalent & Substitute Parts

Part Overview

The BAV202-GS18 is a general-purpose fast recovery rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode is rated for 150 V DC reverse voltage with 250 mA average rectified current and features a 50 ns reverse recovery time. The device is packaged in SOD-80 QuadroMELF format and is supplied in Cut Tape (CT) packaging. The BAV202-GS18 holds Active product status and carries automotive-grade qualification (AEC-Q101), making it suitable for demanding applications requiring high reliability. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across different packaging formats or from alternative manufacturers while preserving critical functional parameters.

Substiute Parts

BAV202-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 9525BAV202-GS18 Datasheet

Current PartRFQ

BAV202-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 25136BAV202-GS08 Datasheet

Parametric EquivalentRFQ

BAV102

onsemiIn Stock: 586714BAV102 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BAV202-GS18 are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Parameters for Substitution:

• Voltage - DC Reverse (Vr) (Max): 150 V minimum
• Current - Average Rectified (Io): 250 mA minimum
• Package / Case: SOD-80 variant (mechanical and thermal compatibility)
• Mounting Type: Surface Mount
• Reverse Recovery Time (trr): 50 ns or faster

Substitution Categories:

Parametric Equivalent (BAV202-GS08): Identical electrical specifications and package type. Difference is limited to packaging format (Tape & Reel versus Cut Tape). Both parts share the same base product number (BAV202), manufacturer, and all critical electrical parameters. This substitution is direct and interchangeable at the component level.

Manufacturer Recommended Substitute (BAV102): Meets the core voltage and reverse recovery time requirements with the same SOD-80 package. The BAV102 operates at 200 mA average rectified current, which is lower than the BAV202-GS18 specification. This part is suitable for applications where the 250 mA current rating is not fully utilized. The BAV102 is manufactured by onsemi and carries equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

BAV202-GS08 Selection: This part is the direct parametric equivalent to the BAV202-GS18. Both devices are manufactured by Vishay with identical electrical specifications, automotive-grade qualification (AEC-Q101), and SOD-80 QuadroMELF packaging. The only difference is the supply format: BAV202-GS08 is supplied in Tape & Reel (TR) packaging while BAV202-GS18 is supplied in Cut Tape (CT). Selection between these two parts depends solely on procurement and assembly requirements. Both parts maintain full compatibility with circuit designs specified for the BAV202-GS18.

BAV102 Selection: The BAV102 from onsemi is suitable as a substitute when the application does not require the full 250 mA current rating of the BAV202-GS18. The BAV102 is rated for 200 mA average rectified current and maintains the same 150 V reverse voltage rating and 50 ns reverse recovery time. The forward voltage drop is slightly higher (1.25 V @ 200 mA versus 1 V @ 100 mA), and the maximum junction temperature is higher (200°C versus 150°C). The BAV102 carries ROHS3 compliance and MSL-1 rating. Note that automotive-grade qualification and AEC-Q101 certification are not specified for the BAV102. Selection of the BAV102 is appropriate for non-automotive applications or where the lower current rating is acceptable.

Frequently Asked Questions (FAQ)

Q: Can BAV202-GS08 be used as a direct replacement for BAV202-GS18?

A: Yes. The BAV202-GS08 is a parametric equivalent with identical electrical specifications, package type, and manufacturer. The parts differ only in supply packaging format (Tape & Reel versus Cut Tape). Both are suitable for the same circuit applications without modification.

Q: What is the primary difference between BAV202-GS18 and BAV102?

A: The BAV102 has a lower average rectified current rating (200 mA versus 250 mA). Both parts share the same 150 V reverse voltage rating, 50 ns reverse recovery time, and SOD-80 package. The BAV102 is suitable for applications where the full 250 mA current is not required.

Q: Are there automotive qualification differences between the substitute parts?

A: Yes. The BAV202-GS18 and BAV202-GS08 both carry automotive-grade qualification and AEC-Q101 certification. The BAV102 does not specify automotive-grade qualification or AEC-Q101 certification. For automotive applications, the BAV202-GS08 is the appropriate substitute for BAV202-GS18.

Q: Can BAV102 be used in applications designed for BAV202-GS18?

A: The BAV102 can be used only if the application circuit does not require the full 250 mA current capacity and if automotive qualification is not a requirement. The BAV102 meets the voltage and speed specifications but operates at a lower current rating.

Q: What are the packaging considerations when substituting these parts?

A: All three parts use SOD-80 surface mount packages with identical mechanical footprints and thermal characteristics. Substitution between these parts does not require PCB layout changes. The difference between BAV202-GS18 (Cut Tape) and BAV202-GS08 (Tape & Reel) affects only the supply format and assembly handling, not the component itself.

Q: Are all substitute parts RoHS compliant?

A: Yes. The BAV202-GS18, BAV202-GS08, and BAV102 are all ROHS3 compliant with MSL-1 (Unlimited) moisture sensitivity rating.