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VLZ3V3-GS08 Equivalent & Substitute Parts
Part Overview
The VLZ3V3-GS08 is a Zener Diode rated at 3.3 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, indicating it is no longer in active production. Finding equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where this diode specification is required.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Zener (Nom) | 3.3 | V |
| Power - Max | 500 | mW |
| Impedance (Max) | 70 | Ohms |
| Voltage - Forward (Vf) (Max) @ If | 1.5 V @ 200 mA | V @ mA |
| Operating Temperature Range | -65 to 175 | °C |
| Mounting Type | Surface Mount | |
| Package / Case | SOD-80 | |
| Grade | Automotive | |
| Qualification | AEC-Q101 | |
| RoHS Status | ROHS3 Compliant | |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the VLZ3V3-GS08 are identified based on electrical and mechanical compatibility within the Zener Diode category. The substitution criteria are strictly defined by the following parameters:
- Zener Voltage (Vz): 3.3 V nominal
- Power Dissipation (Max): 500 mW
- Impedance (Max): 70 Ohms
- Forward Voltage (Vf): 1.5 V maximum at 200 mA
- Operating Temperature Range: -65°C to 175°C
- Mounting Type: Surface Mount
- Package Type: SOD-80 variant
- Compliance: ROHS3 Compliant, REACH Unaffected
Substitute parts must match all electrical parameters and maintain compatibility with the SOD-80 package family. Package variants within the SOD-80 classification (QuadroMELF, MiniMELF) are considered mechanically compatible for substitution purposes.
Parameter Comparison
| Parameter | VLZ3V3-GS08 (Main Part) | TLZ3V3-GS08 (Substitute) |
|---|---|---|
| Manufacturer | Vishay General Semiconductor - Diodes Division | Vishay General Semiconductor - Diodes Division |
| Category | Diodes, Zener | Diodes, Zener |
| Voltage - Zener (Nom) | 3.3 V | 3.3 V |
| Power - Max | 500 mW | 500 mW |
| Impedance (Max) | 70 Ohms | 70 Ohms |
| Voltage - Forward (Vf) (Max) @ If | 1.5 V @ 200 mA | 1.5 V @ 200 mA |
| Operating Temperature Range | -65°C to 175°C | -65°C to 175°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | SOD-80 QuadroMELF | SOD-80 MiniMELF |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The TLZ3V3-GS08 is a direct electrical equivalent to the VLZ3V3-GS08 with identical electrical specifications across all critical parameters. The primary distinction is the package variant: the main part uses SOD-80 QuadroMELF while the substitute uses SOD-80 MiniMELF. Both variants are within the SOD-80 package family and are mechanically compatible for surface mount applications.
The TLZ3V3-GS08 holds Active product status, ensuring ongoing availability and supply chain continuity. Both parts maintain identical compliance certifications including ROHS3 compliance, REACH unaffected status, and automotive-grade qualification (AEC-Q101 for the main part). The substitute part is available in Tape & Reel packaging, supporting high-volume production requirements.
Selection of the TLZ3V3-GS08 as a substitute is appropriate for applications requiring the 3.3 V, 500 mW Zener Diode specification with surface mount delivery and automotive-grade reliability.
Frequently Asked Questions (FAQ)
Q: Are the VLZ3V3-GS08 and TLZ3V3-GS08 electrically interchangeable?
A: Yes. Both parts have identical electrical specifications: 3.3 V nominal Zener voltage, 500 mW maximum power dissipation, 70 Ohms maximum impedance, and 1.5 V maximum forward voltage at 200 mA. Operating temperature ranges are identical at -65°C to 175°C.
Q: What is the difference between SOD-80 QuadroMELF and SOD-80 MiniMELF packages?
A: Both are SOD-80 package variants used for surface mount Zener diodes. The QuadroMELF and MiniMELF designations refer to different physical form factors within the SOD-80 classification. Both are mechanically compatible for PCB assembly in surface mount applications.
Q: Why is the VLZ3V3-GS08 marked as Obsolete?
A: Obsolete status indicates the part is no longer manufactured by Vishay General Semiconductor - Diodes Division. The TLZ3V3-GS08 is the active equivalent that maintains all electrical and functional specifications.
Q: Can I use the TLZ3V3-GS08 in existing designs specified for VLZ3V3-GS08?
A: Yes. The TLZ3V3-GS08 meets all electrical parameter requirements and operates within the same temperature range. PCB layout considerations for the different SOD-80 package variants should be evaluated during design review.
Q: Are both parts automotive-grade qualified?
A: The VLZ3V3-GS08 carries AEC-Q101 automotive qualification. Both parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for automotive and industrial applications.
Q: What packaging options are available for the substitute part?
A: The TLZ3V3-GS08 is available in Tape & Reel (TR) packaging, supporting automated assembly and high-volume production workflows.
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