TZMC11-GS18 Equivalent & Substitute Parts

Part Overview

The TZMC11-GS18 is an 11 V, 500 mW Zener diode manufactured by Vishay General Semiconductor - Diodes Division, designed for surface mount applications in the SOD-80 MiniMELF package. This component is classified as an active product with automotive-grade qualification (AEC-Q101) and ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, packaging format preferences, or tolerance specifications that better suit application requirements.

Substiute Parts

TZMC11-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 1044TZMC11-GS18 Datasheet

Current PartRFQ

TZMB11-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 18008TZMB11-GS08 Datasheet

Parametric EquivalentRFQ

TZMC11-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 55172TZMC11-GS08 Datasheet

Parametric EquivalentRFQ

BZV55-C11,115

Nexperia USA Inc.In Stock: 5661BZV55-C11,115 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TZMC11-GS18 are classified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Parameters for Substitution:

• Zener voltage: 11 V (nominal)
• Maximum power dissipation: 500 mW
• Package type: SOD-80 MiniMELF (DO-213AC)
• Mounting type: Surface Mount
• Operating temperature range: -65°C minimum to 175°C minimum
• Impedance (maximum): 20 Ohms
• Reverse leakage current: 100 nA @ specified voltage

Substitution Categories:

Parametric Equivalents maintain identical electrical specifications and automotive qualification. These parts differ only in packaging format (Tape & Reel versus Cut Tape) or tolerance specification (±2% versus ±5%), allowing direct functional replacement.

Upgrade Substitutes provide equivalent core electrical performance with enhanced operating temperature range or alternative package designations from different manufacturers, while maintaining compliance certifications and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

TZMB11-GS08 (Parametric Equivalent - Tighter Tolerance)

The TZMB11-GS08 is a direct parametric equivalent with identical electrical specifications and automotive AEC-Q101 qualification. The primary distinction is the ±2% tolerance specification compared to the ±5% tolerance of the TZMC11-GS18. This part is suitable for applications requiring tighter voltage regulation. Both parts maintain the same operating temperature range (-65°C to 175°C), impedance characteristics, and reverse leakage performance. Packaging format is Tape & Reel (TR), consistent with the main part.

TZMC11-GS08 (Parametric Equivalent - Alternative Packaging)

The TZMC11-GS08 provides identical electrical performance and tolerance specification (±5%) to the TZMC11-GS18, with automotive AEC-Q101 qualification maintained. The distinction is the packaging format: Cut Tape (CT) & Digi-Reel® versus Tape & Reel (TR). This part is suitable for applications where alternative tape formats or reel configurations are preferred or required by assembly processes. All electrical parameters, operating temperature range, and compliance certifications remain unchanged.

BZV55-C11,115 (Upgrade Substitute - Extended Temperature Range)

The BZV55-C11,115 is manufactured by Nexperia USA Inc. and provides equivalent core electrical specifications (11 V nominal, 500 mW maximum power, ±5% tolerance, 20 Ohms maximum impedance). This part extends the maximum operating temperature to 200°C compared to 175°C for the TZMC11-GS18, providing enhanced thermal performance for high-temperature applications. The part maintains SOD-80 MiniMELF package compatibility and ROHS3 compliance. Note that automotive grade and AEC-Q101 qualification are not specified for this part. The forward voltage characteristic differs (900 mV @ 10 mA versus 1.5 V @ 200 mA), reflecting different measurement conditions rather than functional incompatibility.

Frequently Asked Questions (FAQ)

Q: Can TZMB11-GS08 be used as a direct replacement for TZMC11-GS18?

A: Yes. The TZMB11-GS08 is a parametric equivalent with identical zener voltage (11 V), maximum power (500 mW), impedance (20 Ohms), reverse leakage current (100 nA @ 8.2 V), and operating temperature range (-65°C to 175°C). The ±2% tolerance of the TZMB11-GS08 is tighter than the ±5% tolerance of the TZMC11-GS18, making it suitable for applications requiring more precise voltage regulation. Both parts carry automotive AEC-Q101 qualification and are packaged in SOD-80 MiniMELF format.

Q: What is the difference between TZMC11-GS18 and TZMC11-GS08?

A: Both parts are manufactured by Vishay General Semiconductor with identical electrical specifications and ±5% tolerance. The primary difference is packaging format: TZMC11-GS18 is supplied in Tape & Reel (TR) format, while TZMC11-GS08 is supplied in Cut Tape (CT) & Digi-Reel® format. Selection between these parts depends on assembly equipment compatibility and tape reel configuration requirements.

Q: Is BZV55-C11,115 compatible with automotive applications?

A: The BZV55-C11,115 provides equivalent electrical performance for the zener function (11 V nominal, 500 mW maximum power). However, automotive grade designation and AEC-Q101 qualification are not specified for this part. Applications requiring automotive-grade components should use TZMC11-GS18, TZMB11-GS08, or TZMC11-GS08. The BZV55-C11,115 is suitable for non-automotive applications or where extended temperature range (-65°C to 200°C) is the primary requirement.

Q: Are all substitute parts in the same SOD-80 MiniMELF package?

A: Yes. All substitute parts (TZMB11-GS08, TZMC11-GS08, and BZV55-C11,115) are packaged in SOD-80 MiniMELF format (DO-213AC), ensuring mechanical and footprint compatibility with the TZMC11-GS18. Supplier device package designations may vary (SOD-80 MiniMELF versus LLDS MiniMelf), but these refer to the same physical package format.

Q: What are the key electrical parameters that must match for substitution?

A: The critical parameters for zener diode substitution are: zener voltage (11 V nominal), maximum power dissipation (500 mW), impedance (20 Ohms maximum), reverse leakage current (100 nA), and operating temperature range (minimum -65°C to 175°C). Tolerance specification (±2% or ±5%) and forward voltage characteristics may vary between substitutes without affecting functional compatibility, provided the core parameters remain within specification.

Q: Can TZMC11-GS18 be substituted with BZV55-C11,115 in automotive applications?

A: The BZV55-C11,115 provides equivalent electrical performance but does not carry automotive grade designation or AEC-Q101 qualification. For automotive applications requiring these certifications, use TZMC11-GS18, TZMB11-GS08, or TZMC11-GS08. The BZV55-C11,115 is suitable for non-automotive applications where extended temperature range (up to 200°C) is beneficial.

Q: What is the inventory status of substitute parts?

A: TZMC11-GS08 has the highest inventory availability at 55,100 pieces. TZMB11-GS08 has 17,984 pieces in stock. BZV55-C11,115 has 5,605 pieces available. The original TZMC11-GS18 has 988 pieces in stock. Inventory levels should be confirmed with the supplier for current availability.