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VLZ10-GS18 Equivalent & Substitute Parts
Part Overview
The VLZ10-GS18 is a Zener diode rated at 10 V nominal voltage with 500 mW maximum power dissipation, packaged in SOD-80 QuadroMELF surface mount configuration. Manufactured by Vishay General Semiconductor - Diodes Division, this component is classified as Automotive grade with AEC-Q101 qualification. The part is currently listed as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Zener (Nom) | 10 V |
| Power - Max | 500 mW |
| Impedance (Max) | 8 Ohms |
| Voltage - Forward (Vf) (Max) @ If | 1.5 V @ 200 mA |
| Operating Temperature Range | -65°C ~ 175°C |
| Mounting Type | Surface Mount |
| Package / Case | SOD-80 |
| Grade | Automotive |
| Qualification | AEC-Q101 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the VLZ10-GS18 is determined by electrical and mechanical parameter equivalence. The critical parameters governing substitution are:
- Zener voltage rating: 10 V nominal
- Maximum power dissipation: 500 mW
- Maximum impedance: 8 Ohms
- Forward voltage characteristics: 1.5 V maximum at 200 mA
- Operating temperature range: -65°C to 175°C
- Surface mount configuration with SOD-80 package compatibility
- Automotive grade classification with AEC-Q101 qualification
- RoHS3 compliance and MSL Level 1 rating
The TLZ10-GS18 meets all specified electrical parameters and maintains automotive qualification requirements. The primary distinction is the package variant designation (MiniMELF versus QuadroMELF) and product status transition from Obsolete to Active.
Parameter Comparison
| Parameter | VLZ10-GS18 | TLZ10-GS18 |
|---|---|---|
| Manufacturer | Vishay General Semiconductor - Diodes Division | Vishay General Semiconductor - Diodes Division |
| Category | Diodes, Zener | Diodes, Zener |
| Voltage - Zener (Nom) | 10 V | 10 V |
| Power - Max | 500 mW | 500 mW |
| Impedance (Max) | 8 Ohms | 8 Ohms |
| 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 QuadroMELF | SOD-80 MiniMELF |
| Grade | Automotive | Automotive |
| Qualification | AEC-Q101 | AEC-Q101 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The TLZ10-GS18 serves as the direct functional equivalent for the obsolete VLZ10-GS18. Both components share identical electrical specifications, automotive qualification, and compliance certifications. The transition from Obsolete to Active product status makes the TLZ10-GS18 the appropriate selection for new designs and ongoing production requirements.
The package variant difference (QuadroMELF to MiniMELF) represents a physical form factor change within the SOD-80 family. Both variants maintain the same electrical performance and thermal characteristics required for the 500 mW power rating. PCB layout modifications may be necessary to accommodate the dimensional differences between QuadroMELF and MiniMELF packages.
The TLZ10-GS18 is available in Tape & Reel packaging, suitable for automated assembly processes. Current inventory status indicates 882 pieces in stock, supporting production continuity.
Frequently Asked Questions (FAQ)
Q: Are the VLZ10-GS18 and TLZ10-GS18 electrically interchangeable?
A: Yes. Both components have identical zener voltage (10 V), power rating (500 mW), impedance (8 Ohms), forward voltage characteristics, and operating temperature range (-65°C to 175°C). Electrical performance is equivalent.
Q: What is the difference between QuadroMELF and MiniMELF packages?
A: Both are SOD-80 package variants with identical electrical specifications. The difference is physical form factor and footprint dimensions. MiniMELF (TLZ10-GS18) is the smaller variant. PCB layout and component placement must be adjusted accordingly.
Q: Can I use TLZ10-GS18 in existing designs specified for VLZ10-GS18?
A: Electrical substitution is direct. Physical substitution requires PCB footprint verification and modification if necessary due to package size differences between QuadroMELF and MiniMELF variants.
Q: Why is VLZ10-GS18 listed as Obsolete?
A: The VLZ10-GS18 has been discontinued by the manufacturer. The TLZ10-GS18 represents the active product line continuation with equivalent electrical specifications.
Q: Are both parts automotive qualified?
A: Yes. Both VLZ10-GS18 and TLZ10-GS18 carry Automotive grade classification and AEC-Q101 qualification, meeting automotive industry reliability and quality standards.
Q: What is the moisture sensitivity level for these components?
A: Both components have MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.
Q: Are these components RoHS compliant?
A: Yes. Both VLZ10-GS18 and TLZ10-GS18 are ROHS3 compliant and REACH unaffected.
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