VLZ3V6-GS18 Equivalent & Substitute Parts

Part Overview

The VLZ3V6-GS18 is a Zener Diode rated at 3.6 V with 500 mW power dissipation in a Surface Mount SOD-80 QuadroMELF package, manufactured by Vishay General Semiconductor - Diodes Division. This component is classified as Obsolete, which necessitates identification of equivalent substitute parts for ongoing design requirements and production continuity. The part carries Automotive grade qualification (AEC-Q101) and is ROHS3 compliant.

Substiute Parts

VLZ3V6-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 928VLZ3V6-GS18 Datasheet

Current PartRFQ

TLZ3V6-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 944TLZ3V6-GS18 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VLZ3V6-GS18 is determined by electrical and mechanical parameter equivalence. The critical parameters that define substitutability are:

• Zener Voltage (Vz): 3.6 V nominal
• Power Dissipation: 500 mW maximum
• Impedance (Zzt): 60 Ohms maximum
• Forward Voltage (Vf): 1.5 V maximum at 200 mA
• Operating Temperature Range: -65°C to 175°C
• Package Type: SOD-80 Surface Mount
• Compliance Standards: ROHS3, AEC-Q101 Automotive qualification

The substitute part TLZ3V6-GS18 meets all electrical specifications identically. The primary distinction is the package variant designation (QuadroMELF versus MiniMELF) and product status (Obsolete versus Active). Both variants utilize the SOD-80 form factor and are mechanically compatible in surface mount applications.

Parameter Comparison

Engineering Selection Recommendations

The TLZ3V6-GS18 is a direct electrical equivalent to the VLZ3V6-GS18 with identical performance specifications across all rated parameters. Selection of the substitute part is supported by:

• Electrical Equivalence: All voltage, power, impedance, and temperature specifications are identical
• Compliance Alignment: Both parts maintain ROHS3 compliance and AEC-Q101 Automotive qualification
• Product Status: The substitute part is Active, ensuring continued availability and supply chain stability
• Package Compatibility: Both parts utilize SOD-80 Surface Mount technology with compatible mechanical footprints
• Moisture Sensitivity: Both parts carry MSL 1 (Unlimited) rating

The transition from VLZ3V6-GS18 to TLZ3V6-GS18 presents no functional or compliance barriers for applications requiring a 3.6 V, 500 mW Zener Diode in automotive-grade surface mount configuration.

Frequently Asked Questions (FAQ)

Q: Are the VLZ3V6-GS18 and TLZ3V6-GS18 electrically identical?

A: Yes. Both parts share identical electrical specifications: 3.6 V nominal Zener voltage, 500 mW maximum power dissipation, 60 Ohms maximum impedance, and 1.5 V maximum forward voltage at 200 mA. Operating temperature range is -65°C to 175°C for both parts.

Q: What is the difference between QuadroMELF and MiniMELF package variants?

A: Both variants are SOD-80 Surface Mount packages. The designation difference reflects internal package geometry variations within the SOD-80 standard. Both are mechanically compatible for surface mount PCB assembly applications.

Q: Can I use TLZ3V6-GS18 as a direct replacement in existing designs?

A: Yes. The TLZ3V6-GS18 is a direct substitute with identical electrical performance and compatible surface mount packaging. No circuit redesign is required.

Q: Are both parts compliant with automotive standards?

A: Yes. Both VLZ3V6-GS18 and TLZ3V6-GS18 carry AEC-Q101 Automotive qualification and ROHS3 compliance.

Q: Why is the VLZ3V6-GS18 marked as Obsolete?

A: The VLZ3V6-GS18 has reached end-of-life status. The TLZ3V6-GS18 remains in active production and serves as the current equivalent for new designs and production continuity.

Q: What is the moisture sensitivity level for these parts?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.