TZMC56-GS18 Equivalent & Substitute Parts

Part Overview

The TZMC56-GS18 is an automotive-grade Zener diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at a nominal Zener voltage of 56 V with a maximum power dissipation of 500 mW in the SOD-80 MiniMELF package. The device is classified as Active product status and carries AEC-Q101 automotive qualification, making it suitable for regulated voltage applications in automotive and industrial environments. Substitute parts are identified to address inventory availability, supply chain continuity, or equivalent functional requirements in circuit designs.

Substiute Parts

TZMC56-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 753TZMC56-GS18 Datasheet

Current PartRFQ

TZMC56-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 135186TZMC56-GS08 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TZMC56-GS18 is determined by electrical and mechanical parameter equivalence within the TZM series. The substitute part TZMC56-GS08 is classified as a parametric equivalent based on the following critical parameters:

Electrical Parameters (Must Match):

• Nominal Zener voltage: 56 V
• Tolerance: ±5%
• Maximum power dissipation: 500 mW
• Maximum impedance: 135 Ohms
• Reverse leakage current: 100 nA @ 43 V
• Forward voltage: 1.5 V @ 200 mA
• Operating temperature range: -65°C ~ 175°C

Mechanical & Compliance Parameters (Must Match):

• Package type: SOD-80 MiniMELF (DO-213AC)
• Mounting type: Surface Mount
• Automotive grade classification
• AEC-Q101 qualification
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Both parts belong to the TZM series and maintain identical electrical specifications and package configurations, establishing full parametric equivalence for circuit design purposes.

Parameter Comparison

Engineering Selection Recommendations

The TZMC56-GS08 is a direct parametric equivalent to the TZMC56-GS18 and is suitable for substitution in all applications where the primary part is specified. Both components share identical electrical characteristics, package configuration, and automotive qualification status.

Selection Basis:

Both parts maintain Active product status and carry AEC-Q101 automotive qualification, confirming suitability for regulated voltage applications in automotive circuits. The ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1) ensure compatibility with modern manufacturing processes and storage requirements.

The parametric equivalence across all electrical parameters—including Zener voltage, power rating, impedance, leakage current, and forward voltage—establishes functional interchangeability at the circuit level. The identical SOD-80 MiniMELF package and surface mount configuration ensure mechanical and thermal compatibility with existing PCB layouts and assembly processes.

Selection between TZMC56-GS18 and TZMC56-GS08 is determined by inventory availability and supply chain considerations rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can TZMC56-GS08 be used as a direct replacement for TZMC56-GS18 in automotive applications?

A: Yes. Both parts are AEC-Q101 qualified automotive-grade Zener diodes with identical electrical specifications, package type, and operating temperature range. They are parametrically equivalent and interchangeable at the circuit design level.

Q: Are there any differences in the SOD-80 MiniMELF package between these parts?

A: No. Both parts use the identical SOD-80 MiniMELF package (DO-213AC designation). PCB footprints, soldering requirements, and thermal characteristics are equivalent.

Q: What is the significance of the ±5% tolerance specification?

A: The ±5% tolerance applies to the nominal Zener voltage of 56 V, establishing the acceptable voltage regulation range. Both substitute parts maintain this tolerance specification, ensuring consistent voltage regulation performance across production batches.

Q: Do both parts meet the same compliance and qualification standards?

A: Yes. Both TZMC56-GS18 and TZMC56-GS08 are ROHS3 compliant, carry AEC-Q101 automotive qualification, and maintain MSL 1 (Unlimited) moisture sensitivity rating. They satisfy identical regulatory and quality requirements.

Q: What determines whether a Zener diode can substitute for another in a circuit?

A: Substitution is determined by matching nominal Zener voltage, power rating, impedance, leakage current, forward voltage characteristics, operating temperature range, and package type. All these parameters are identical between TZMC56-GS18 and TZMC56-GS08.

Q: Is the 500 mW power rating the same for both parts?

A: Yes. Both parts are rated for maximum power dissipation of 500 mW, establishing equivalent thermal performance and current handling capability in voltage regulation circuits.