VLZ33-GS08 Equivalent & Substitute Parts

Part Overview

The VLZ33-GS08 is a Zener Diode rated at 33 V nominal voltage with 500 mW power dissipation, manufactured by Vishay General Semiconductor - Diodes Division. This component is packaged in SOD-80 QuadroMELF surface mount configuration and is qualified to AEC-Q101 automotive standards.

The VLZ33-GS08 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this Zener diode specification.

Substiute Parts

VLZ33-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 876VLZ33-GS08 Datasheet

Current PartRFQ

TLZ33-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 683TLZ33-GS08 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the VLZ33-GS08 are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match):

• Voltage - Zener (Nom): 33 V
• Power - Max: 500 mW
• Impedance (Max): 65 Ohms
• Voltage - Forward (Vf) (Max) @ If: 1.5 V @ 200 mA
• Operating Temperature Range: -65°C to 175°C

Mechanical Parameters (Must Match or Be Compatible):

• Mounting Type: Surface Mount
• Package / Case: SOD-80 variant
• Compliance: ROHS3 Compliant, REACH Unaffected

Regulatory & Quality Parameters:

• Grade: Automotive
• Qualification: AEC-Q101

The TLZ33-GS08 meets all electrical and mechanical substitution criteria. Differences in packaging designation (QuadroMELF vs. MiniMELF) and product status (Obsolete vs. Active) do not affect electrical equivalence when both conform to SOD-80 specifications.

Parameter Comparison

Engineering Selection Recommendations

The TLZ33-GS08 is a direct electrical equivalent to the VLZ33-GS08. Both components are manufactured by Vishay General Semiconductor - Diodes Division and share identical electrical specifications across all critical parameters: 33 V nominal Zener voltage, 500 mW maximum power dissipation, 65 Ohms maximum impedance, and -65°C to 175°C operating temperature range.

Both parts are ROHS3 compliant, REACH unaffected, and carry AEC-Q101 automotive qualification. The TLZ33-GS08 is currently in active production status, whereas the VLZ33-GS08 is obsolete. This makes the TLZ33-GS08 the preferred selection for new designs and ongoing production support.

The packaging difference between QuadroMELF and MiniMELF variants does not affect electrical performance, as both conform to SOD-80 specifications. PCB layout and footprint compatibility must be verified during design integration to accommodate the specific variant selected.

Frequently Asked Questions (FAQ)

Q: Can the TLZ33-GS08 be used as a direct replacement for the VLZ33-GS08 in existing designs?

A: Yes. The TLZ33-GS08 is electrically identical to the VLZ33-GS08 across all specified parameters. Both components meet the same electrical requirements and automotive qualification standards. PCB footprint compatibility must be confirmed, as QuadroMELF and MiniMELF variants may have different physical dimensions within the SOD-80 package family.

Q: What is the difference between SOD-80 QuadroMELF and SOD-80 MiniMELF packaging?

A: Both are SOD-80 package variants manufactured by Vishay. The primary difference is physical size and lead configuration. QuadroMELF and MiniMELF refer to different mechanical implementations of the SOD-80 standard. Electrical performance is identical. Component selection must account for PCB layout constraints and available footprint space.

Q: Are both parts automotive qualified?

A: Yes. Both the VLZ33-GS08 and TLZ33-GS08 carry AEC-Q101 qualification and are rated for automotive applications. Both operate across the -65°C to 175°C temperature range required for automotive environments.

Q: Why is the VLZ33-GS08 marked as obsolete?

A: The VLZ33-GS08 has been discontinued by the manufacturer. The TLZ33-GS08 represents the active production equivalent. For new designs and ongoing supply requirements, the TLZ33-GS08 should be specified.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant and REACH unaffected. Regulatory and environmental compliance status is identical.

Q: What inventory status should be considered when selecting between these parts?

A: The VLZ33-GS08 has 814 pieces in stock (obsolete status). The TLZ33-GS08 has 631 pieces in stock (active status). For long-term supply chain stability, the active TLZ33-GS08 is the recommended selection despite lower current inventory.