Equivalent & Substitute Parts Reference: VLZ36C-GS08

Part Overview

VLZ36C-GS08 is a Zener diode by Vishay General Semiconductor - Diodes Division, designed for automotive-grade voltage regulation in surface mount applications. Key functional parameters include a nominal Zener voltage of 34.27 V, maximum power dissipation of 500 mW, and compliance with AEC-Q101 standards. As the product status is listed as obsolete, sourcing alternatives is required for continued manufacturing and design-in purposes.

Key Parameters

Parameter	VLZ36C-GS08
Category	Diodes, Zener
Voltage - Zener (Nom) (Vz)	34.27 V
Power - Max	500 mW
Impedance (Max) (Zzt)	75 Ohms
Current - Reverse Leakage @ Vr	40 µA @ 31.7 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA
Operating Temperature	-65°C ~ 175°C
Grade	Automotive
Qualification	AEC-Q101
Mounting Type	Surface Mount
Package / Case	SOD-80 Variant
Supplier Device Package	SOD-80 QuadroMELF
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts are selected by matching the specified key electrical and mechanical parameters: Zener voltage, maximum power dissipation, impedance, leakage current, forward voltage, operating temperature, compliance ratings, mounting type, and package form. Substitution eligibility requires direct alignment with these explicit criteria.

Parameter Comparison

Parameter	VLZ36C-GS08	TLZ36C-GS08
Category	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom) (Vz)	34.27 V	36 V
Power - Max	500 mW	500 mW
Impedance (Max) (Zzt)	75 Ohms	75 Ohms
Current - Reverse Leakage @ Vr	40 µA @ 31.7 V	40 nA @ 31.7 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA	1.5 V @ 200 mA
Operating Temperature	-65°C ~ 175°C	-65°C ~ 175°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	SOD-80 Variant	DO-213AC, MINI-MELF, SOD-80
Supplier Device Package	SOD-80 QuadroMELF	SOD-80 MiniMELF
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Selection between VLZ36C-GS08 and TLZ36C-GS08 is determined by product status (VLZ36C-GS08 is obsolete; TLZ36C-GS08 is active), identical compliance marks (ROHS3, REACH, AEC-Q101 for main part), and matching moisture sensitivity levels. Substitute part TLZ36C-GS08 aligns with the compliance, environmental, and certification standards required for automotive and industrial use.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters for selecting a Zener diode substitute?
A1: Voltage - Zener (Nom), Power - Max, Impedance (Max), Reverse Leakage Current, Forward Voltage, operating temperature range, mounting type, package, and certification/compliance statuses.

Q2: Does TLZ36C-GS08 match the SOD-80 package requirement?
A2: TLZ36C-GS08 specifies SOD-80 MiniMELF; main part is SOD-80 QuadroMELF; review mechanical compatibility for specific PCB outlines.

Q3: Are there any compliance differences between VLZ36C-GS08 and TLZ36C-GS08?
A3: Both are ROHS3 compliant and REACH unaffected. Main part grade and qualification are automotive/AEC-Q101.

Q4: Is there a difference in maximum power handling?
A4: Both Zener diodes have a maximum power rating of 500 mW.

Q5: Can TLZ36C-GS08 be used as a substitute if the main part is obsolete?
A5: TLZ36C-GS08 meets the required regulatory and electrical specifications for substitution.

Q6: Are there notable differences in electrical characteristics between the main and substitute parts?
A6: Zener voltage differs (34.27 V vs 36 V); reverse leakage current specification is lower for TLZ36C-GS08. Review application requirements for exact voltage value.

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