TZMB36-GS08 Equivalent & Substitute Parts

Part Overview

The TZMB36-GS08 is a Zener diode manufactured by Vishay General Semiconductor - Diodes Division, rated at 36 V nominal with 500 mW power dissipation capability. This component operates in the active product status and is qualified to AEC-Q101 automotive standards. The device is packaged in SOD-80 MiniMELF surface mount configuration and complies with ROHS3 and REACH requirements.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the critical parameters that define the functional application of this Zener diode. Substitutes must satisfy the voltage regulation, power handling, and thermal operating requirements of the original design.

Substiute Parts

TZMB36-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 1449TZMB36-GS08 Datasheet

Current PartRFQ

BZV55-B36,115

NXP SemiconductorsIn Stock: 773538BZV55-B36,115 Datasheet

MFR RecommendedRFQ

MMSZ5258B_R1_00001

Panjit International Inc.In Stock: 9826MMSZ5258B_R1_00001 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TZMB36-GS08 is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Voltage - Zener (Nom): 36 V
• Power - Max: 500 mW
• Mounting Type: Surface Mount

Mechanical Compatibility Requirements:

• Package / Case: DO-213AC, MINI-MELF, SOD-80 or compatible surface mount package

Compliance Requirements:

• Product Status: Active
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Substitute parts must maintain the 36 V zener voltage specification and 500 mW power rating. Tolerance variations and impedance differences are acceptable provided the electrical performance remains within the application's design margins. Operating temperature range and packaging format are secondary considerations that may vary based on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

BZV55-B36,115 (NXP Semiconductors)

This substitute maintains identical zener voltage (36 V) and power rating (500 mW) with matching ±2% tolerance. The package format is compatible (DO-213AC, MINI-MELF, SOD-80). Operating temperature range extends to 200°C, providing enhanced thermal margin compared to the original part. Impedance specification (90 Ohms) is within acceptable variance. Product status is active with REACH compliance confirmed. This substitute is suitable for direct replacement in applications where the extended temperature range does not create design conflicts.

MMSZ5258B_R1_00001 (Panjit International Inc.)

This substitute maintains the 36 V zener voltage and 500 mW power rating. Tolerance is specified at ±5%, representing a wider specification window than the original ±2%. Impedance (70 Ohms) is lower than the original specification. Operating temperature range is -55 to 150°C, which is narrower than the original -65 to 175°C specification. Package format is SOD-123, which differs from the original SOD-80 MiniMELF. This substitute requires PCB layout modification due to package incompatibility. Product status is active with ROHS3 compliance and REACH unaffected status confirmed. Selection of this substitute is contingent upon PCB redesign capability and acceptance of the reduced temperature operating range.

Frequently Asked Questions (FAQ)

Q: Can BZV55-B36,115 be used as a direct replacement for TZMB36-GS08 without PCB modification?

A: Yes. Both parts use identical package formats (DO-213AC, MINI-MELF, SOD-80) and maintain the same pinout. No PCB layout changes are required for this substitution.

Q: What is the significance of the tolerance difference between TZMB36-GS08 (±2%) and MMSZ5258B_R1_00001 (±5%)?

A: Tolerance defines the acceptable variation range of the zener voltage from the nominal 36 V specification. The ±2% tolerance on TZMB36-GS08 restricts voltage variation to 35.28 V to 36.72 V. The ±5% tolerance on MMSZ5258B_R1_00001 allows variation from 34.2 V to 37.8 V. Applications requiring tighter voltage regulation must use parts with ±2% tolerance.

Q: Why does MMSZ5258B_R1_00001 require PCB modification?

A: MMSZ5258B_R1_00001 uses SOD-123 package format, while TZMB36-GS08 uses SOD-80 MiniMELF. These packages have different physical dimensions and pad layouts. PCB footprints must be redesigned to accommodate the SOD-123 package.

Q: Is the extended temperature range of BZV55-B36,115 (-65 to 200°C) a disadvantage?

A: No. An extended temperature range provides additional operational margin and does not create design conflicts. The part remains functional across the original operating range (-65 to 175°C) and beyond.

Q: Can MMSZ5258B_R1_00001 be used in automotive applications?

A: MMSZ5258B_R1_00001 does not carry AEC-Q101 qualification. TZMB36-GS08 is AEC-Q101 qualified for automotive applications. If automotive qualification is a design requirement, MMSZ5258B_R1_00001 is not suitable. BZV55-B36,115 should be evaluated for automotive qualification status before selection.

Q: What does impedance (Zzt) represent in zener diode specifications?

A: Impedance (Zzt) is the dynamic impedance of the zener diode in the reverse breakdown region. Lower impedance indicates better voltage regulation characteristics. MMSZ5258B_R1_00001 (70 Ohms) has lower impedance than TZMB36-GS08 (80 Ohms), resulting in improved voltage stability under load variations.

Q: Are all three parts RoHS compliant?

A: TZMB36-GS08 and MMSZ5258B_R1_00001 are explicitly ROHS3 compliant. BZV55-B36,115 specifies REACH Unaffected status. Verify specific RoHS compliance requirements with your procurement or quality department before final selection.