MM5Z6V8 Zener Diode Equivalent & Substitute Parts

Part Overview

The MM5Z6V8 is an active-status zener diode manufactured by Diotec Semiconductor, designed for voltage regulation and protection applications. This surface-mount component operates at a nominal zener voltage of 6.8 V with a maximum power dissipation of 200 mW. The part is packaged in SOD-523 (SC-79) form factor, suitable for compact electronic assemblies requiring precise voltage reference or transient suppression.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design standardization across manufacturing partners.

Substiute Parts

MM5Z6V8

Diotec SemiconductorIn Stock: 21293MM5Z6V8 Datasheet

Current PartRFQ

BZT52C6V8K RKG

Taiwan Semiconductor CorporationIn Stock: 7156BZT52C6V8K RKG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MM5Z6V8 is determined by strict equivalence across the following electrical and mechanical parameters:

• Zener Voltage (Vz): 6.8 V nominal
• Voltage Tolerance: ±5%
• Maximum Power Dissipation: 200 mW
• Maximum Impedance (Zzt): 15 Ohms
• Operating Temperature Range: -65°C to 150°C (TJ)
• Package Type: SOD-523 surface-mount form factor
• Mounting Configuration: Surface mount

The substitute part BZT52C6V8K RKG, manufactured by Taiwan Semiconductor Corporation, meets all specified electrical parameters and mechanical compatibility requirements. Both components operate within identical voltage and temperature ranges and share the same package designation, enabling direct functional substitution in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the MM5Z6V8 and BZT52C6V8K RKG are active-status components suitable for production use. Selection between these parts is based on the following factors:

MM5Z6V8 (Diotec Semiconductor): Recommended when Diotec supply chain integration is established or when RoHS compliance status requires vendor-specific documentation. Current inventory: 21,200 pieces.

BZT52C6V8K RKG (Taiwan Semiconductor Corporation): Recommended as a direct substitute when ROHS3 compliance certification is required or when Taiwan Semiconductor supply channels are preferred. This part carries explicit ROHS3 compliance and REACH Unaffected status. Current inventory: 7,057 pieces. Moisture Sensitivity Level (MSL) rating of 1 indicates unlimited shelf life under standard storage conditions.

Both components are classified under ECCN EAR99 and share identical HTSUS commodity codes (8541.10.0000 and 8541.10.0050 respectively), confirming regulatory equivalence for export and import purposes.

Frequently Asked Questions (FAQ)

Q: Can BZT52C6V8K RKG be used as a direct replacement for MM5Z6V8 in existing circuit designs?

A: Yes. Both components share identical zener voltage (6.8 V), tolerance (±5%), maximum power rating (200 mW), impedance specification (15 Ohms maximum), and operating temperature range (-65°C to 150°C). The SOD-523 package footprint is identical, enabling direct PCB substitution without layout modifications.

Q: What is the difference in reverse leakage current between these parts?

A: The MM5Z6V8 specifies 2 µA maximum reverse leakage at 4 V, while the BZT52C6V8K RKG specifies 500 nA maximum at 3.5 V. The substitute part exhibits lower reverse leakage, which is compatible with the original design specification and does not create functional incompatibility.

Q: Are there packaging differences between MM5Z6V8 and BZT52C6V8K RKG?

A: Both parts use the SOD-523 (SC-79) package. The supplier device package designation differs slightly (SOD-523 versus SOD-523F), but this represents a minor variant within the same package family with identical mechanical and electrical footprints. The "F" designation in SOD-523F indicates a specific manufacturing variant that does not affect interchangeability.

Q: What is the significance of the Tape & Reel (TR) packaging for BZT52C6V8K RKG?

A: Tape & Reel packaging indicates the component is supplied on continuous carrier tape suitable for automated pick-and-place assembly equipment. This is a supply format specification and does not affect the component's electrical performance or physical footprint compared to the MM5Z6V8.

Q: Which part should be selected for new designs requiring ROHS3 compliance?

A: The BZT52C6V8K RKG carries explicit ROHS3 compliance certification. If ROHS3 compliance documentation is required for design qualification or regulatory submission, this part is the appropriate selection.

Q: Are both parts suitable for the full operating temperature range of -65°C to 150°C?

A: Yes. Both the MM5Z6V8 and BZT52C6V8K RKG are rated for identical operating temperature ranges of -65°C to 150°C (junction temperature). No thermal derating or operational restrictions apply when substituting between these parts within this range.