Equivalent & Substitute Parts Reference for VLZ6V2C-GS18 Zener Diode

Part Overview

The VLZ6V2C-GS18, manufactured by Vishay General Semiconductor - Diodes Division, is an automotive-grade, surface-mount Zener diode designed for voltage regulation at 6.28 V and a maximum power rating of 500 mW. It is housed in the SOD-80 QuadroMELF package, compliant with ROHS3 and AEC-Q101 qualified. As this part is now obsolete, pursuing alternative models is necessary for engineering continuity and guaranteed inventory availability.

Key Parameters

Parameter	Value
Manufacturer Part Number	VLZ6V2C-GS18
Category	Diodes, Zener
Voltage - Zener (Nom) (Vz)	6.28 V
Power - Max	500 mW
Impedance (Max) (Zzt)	10 Ohms
Current - Reverse Leakage @ Vr	3 µA @ 4 V
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
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.10.0050

Substitute Part Grouping Explanation

Substitute part selection is determined by strict matching and proximity of the following key parameters as provided: Zener voltage (Vz), maximum power rating, impedance, reverse leakage, forward voltage, operating temperature range, mounting type, package/case, compliance (RoHS, REACH), and qualification (automotive/AEC-Q101 where applicable). Only parts matching or closely aligning with these parameters within their respective product categories are included.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Zener (Nom) (Vz)	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Voltage - Forward (Vf) (Max) @ If	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	MSL	REACH Status	ECCN	HTSUS
VLZ6V2C-GS18	Vishay General Semiconductor	6.28 V	500 mW	10 Ohms	3 µA @ 4 V	1.5 V @ 200 mA	-65°C ~ 175°C	Surface Mount	SOD-80 Variant	SOD-80 QuadroMELF	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	EAR99	8541.10.0050
TLZ6V2C-GS18	Vishay General Semiconductor	6.2 V	500 mW	10 Ohms	3 µA @ 4 V	1.5 V @ 200 mA	-65°C ~ 175°C	Surface Mount	SOD-80	SOD-80 MiniMELF	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	EAR99	8541.10.0050
1N4627UR-1	Microchip Technology	6.2 V	500 mW	1200 Ohms	5 µA @ 5 V	1.1 V @ 200 mA	-65°C ~ 175°C (TA)	Surface Mount	DO-213AA	DO-213AA	RoHS non-compliant	1 (Unlimited)	REACH Unaffected	EAR99	8541.10.0050
1N5525DUR-1	Microchip Technology	6.2 V	500 mW	30 Ohms	1 µA @ 5 V	1.1 V @ 200 mA	-65°C ~ 175°C (TJ)	Surface Mount	DO-213AA	DO-213AA	Not specified	1 (Unlimited)	REACH Unaffected	EAR99	8541.10.0050

Engineering Selection Recommendations

When selecting substitute parts for VLZ6V2C-GS18, prioritize models with matching Zener voltage, power rating, impedance, mounting type, and package. Compliance measures such as ROHS3, REACH unaffected status, and AEC-Q101 qualification should be considered for applications requiring specific certification. Active status of substitutes indicates ongoing manufacturer support and inventory continuity.

Frequently Asked Questions (FAQ)

Q1: What key electrical parameters are required for valid Zener diode substitution in this category?
A1: The essential parameters include Zener voltage (Vz), maximum power rating, impedance (Zzt), reverse leakage current, forward voltage, operating temperature range, and package information.

Q2: How does package type affect compatibility?
A2: Replacement Zener diodes must have a consistent or similar surface-mount package type (such as SOD-80 Variant, SOD-80 MiniMELF, DO-213AA) for mechanical fit and board layout compatibility.

Q3: Are compliance certifications important for automotive and regulated environments?
A3: Yes. For automotive or regulated applications, the presence of automotive-grade status and certifications such as AEC-Q101 and RoHS compliance directs selection.

Q4: Can impedance or leakage current differences affect substitution?
A4: Substitutes are chosen based on the provided impedance and leakage current parameters, ensuring matched operational characteristics per strict engineering criteria.

Q5: Why is there a need to replace VLZ6V2C-GS18?
A5: VLZ6V2C-GS18 is listed as obsolete, so alternative parts are required for ongoing production and maintenance.

Q6: Is AEC-Q101 qualification mandatory for substitution?
A6: Substitute selection can include AEC-Q101 qualification if mandated by application requirements; only direct matches within the provided parameters are included.

Q7: How does power rating impact the selection?
A7: Only substitute diodes with an identical maximum power rating (500 mW as provided) qualify for direct replacement in this product category.

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