Equivalent & Substitute Parts for VLZ8V2-GS18 Zener Diode

Part Overview

VLZ8V2-GS18 is a Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It is a surface mount component in the SOD-80 QuadroMELF package with an 8.2 V nominal Zener voltage and 500 mW power rating, suitable for automotive applications and qualified to AEC-Q101. The part is RoHS3 compliant and has an unlimited Moisture Sensitivity Level (MSL 1). Its product status is listed as obsolete, making it necessary to identify alternative models to ensure continued availability for current and future designs.

Substiute Parts

VLZ8V2-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 944VLZ8V2-GS18 Datasheet

Current PartRFQ

TLZ8V2-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 750TLZ8V2-GS18 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are selected strictly based on matching the following key electrical and mechanical parameters: Zener voltage (8.2 V nominal), maximum power dissipation (500 mW), maximum impedance (8 Ohms), forward voltage (1.5 V @ 200 mA), operating temperature range (-65°C ~ 175°C), mounting type (surface mount), and comparable SOD-80 package form. Additional compliance requirements, including Automotive Grade (AEC-Q101), RoHS3 status, and MSL 1, are also considered. Only parts matching these fields are considered valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

Selection of substitute parts should be based on active product status, ROHS3 compliance, and the same environmental and qualification status (such as REACH unaffected, MSL 1 [unlimited]). The substitute TLZ8V2-GS18 matches all listed compliance criteria and qualification fields.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters when selecting a substitute for VLZ8V2-GS18?
A: Key parameters for substitution are Zener voltage (8.2 V), maximum power dissipation (500 mW), maximum impedance (8 Ohms), forward voltage (1.5 V @ 200 mA), operating temperature range (-65°C ~ 175°C), mounting type (surface mount), and package form (SOD-80 or equivalent).

Q: Is the package compatibility between VLZ8V2-GS18 and TLZ8V2-GS18 sufficient for direct replacement?
A: Both parts use SOD-80 type packages; VLZ8V2-GS18 is specified as SOD-80 QuadroMELF, while TLZ8V2-GS18 is specified as SOD-80 MiniMELF/DO-213AC. They share package dimensions within the SOD-80 category.

Q: Are there any differences in compliance or qualification between the main and substitute part?
A: Both parts are ROHS3 compliant, MSL 1 (Unlimited), and REACH unaffected. Both are from the same manufacturer and product category.

Q: Can the substitute be used in automotive applications?
A: Both devices are automotive grade and AEC-Q101 qualified.

Q: Does the substitute maintain the required electrical characteristics?
A: TLZ8V2-GS18 maintains identical electrical characteristics as the main part for all provided parameters.