Vishay VLZ16-GS18 Equivalent & Substitute Parts Reference

Part Overview

The Vishay VLZ16-GS18 is a surface mount automotive-grade Zener diode designed for voltage regulation applications. It offers a nominal Zener voltage of 16V, maximum power dissipation of 500 mW, and is qualified to AEC-Q101. Provided in the SOD-80 QuadroMELF package, the VLZ16-GS18 is compliant with RoHS3 and REACH requirements. This part is currently obsolete, making it necessary to find alternative models with matching electrical and mechanical characteristics for continued design support or replacement needs.

Key Parameters

Parameter	Value
Voltage - Zener (Nom) (Vz)	16 V
Power - Max	500 mW
Impedance (Max) (Zzt)	18 Ohms
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA
Operating Temperature	-65°C ~ 175°C
Mounting Type	Surface Mount
Package / Case	SOD-80 Variant
Supplier Device Package	SOD-80 QuadroMELF
Automotive Grade	Yes (AEC-Q101)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

The substitute list for the VLZ16-GS18 includes parts that match all critical performance and regulatory parameters provided. Substitution is strictly based on the following key factors:

Zener Voltage (Vz): 16 V
Maximum Power Dissipation: 500 mW
Maximum Zener Impedance (Zzt): 18 Ohms
Forward Voltage (Vf) at Specified Current: 1.5 V @ 200 mA
Operating Temperature Range: -65°C to 175°C
Mounting Type: Surface Mount
Package Type: SOD-80 family (QuadroMELF/MiniMELF)
Compliance: RoHS3, REACH
Automotive Grade/AEC-Q101 Qualification

Only parts that exactly match the above criteria are considered suitable substitutes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Zener (Nom) (Vz)	Power - Max	Impedance (Max) (Zzt)	Voltage - Forward (Vf) (Max) @ If	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	Automotive Grade	RoHS Status	REACH Status
VLZ16-GS18	Vishay General Semiconductor - Diodes Division	16 V	500 mW	18 Ohms	1.5 V @ 200 mA	-65°C ~ 175°C	Surface Mount	SOD-80 Variant	SOD-80 QuadroMELF	Yes (AEC-Q101)	ROHS3 Compliant	REACH Unaffected
TLZ16-GS18	Vishay General Semiconductor - Diodes Division	16 V	500 mW	18 Ohms	1.5 V @ 200 mA	-65°C ~ 175°C	Surface Mount	DO-213AC, MINI-MELF, SOD-80	SOD-80 MiniMELF		ROHS3 Compliant	REACH Unaffected

Engineering Selection Recommendations

The VLZ16-GS18 is obsolete, and the TLZ16-GS18 is active, maintaining identical electrical parameters, compliance with RoHS3 and REACH, and the same power rating, voltage characteristics, and mounting type. Both devices are supplied in the SOD-80 family footprint, supporting compatibility in surface mount applications. Automotive grade (AEC-Q101) certification is specified for the VLZ16-GS18; this information is not present for the TLZ16-GS18 in the provided data.

Frequently Asked Questions (FAQ)

Q: What key parameters are essential when selecting a substitute for the VLZ16-GS18?
A: Essential parameters include Zener voltage (16V), power rating (500 mW), maximum Zener impedance (18 Ohms), forward voltage (1.5 V @ 200 mA), operating temperature range (-65°C to 175°C), mounting type (surface mount), package (SOD-80 family), and environmental compliance (RoHS3, REACH).

Q: Is the TLZ16-GS18 compatible with the same PCB footprint as VLZ16-GS18?
A: Both parts use SOD-80 family packages (QuadroMELF and MiniMELF). Compatibility depends on PCB land pattern matching the specific package variant.

Q: Does the TLZ16-GS18 meet automotive grade requirements?
A: Automotive (AEC-Q101) qualification status is only specified for VLZ16-GS18. No such status is indicated for TLZ16-GS18 based on the provided information.

Q: Are the electrical parameters of VLZ16-GS18 and TLZ16-GS18 identical?
A: Yes, Zener voltage, power rating, Zener impedance, forward voltage, and operating temperature are the same.

Q: What regulatory and compliance standards are supported?
A: Both parts are RoHS3 compliant and REACH unaffected per the provided specifications.

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