CMLZDA6V2 TR Equivalent & Substitute Parts

Part Overview

The CMLZDA6V2 TR is a Zener diode array manufactured by Central Semiconductor Corp, designed for voltage regulation and protection applications. This component features a 1 Pair Common Anode configuration with a nominal Zener voltage of 6.2 V and maximum power dissipation of 250 mW in a SOT-563 surface mount package.

The CMLZDA6V2 TR is classified as Obsolete. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this component.

Substiute Parts

CMLZDA6V2 TR

Central Semiconductor CorpIn Stock: 1059CMLZDA6V2 TR Datasheet

Current PartRFQ

AZ23C6V2-7-F

Diodes IncorporatedIn Stock: 8701AZ23C6V2-7-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CMLZDA6V2 TR is determined by strict equivalence of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Zener (Nom): 6.2 V
• Configuration: 1 Pair Common Anode
• Operating Temperature Range: -65°C ~ 150°C
• Mounting Type: Surface Mount
• Impedance (Max): 10 Ohms

Allowable Variation Parameters:

• Power - Max: Equal or greater than 250 mW
• Tolerance: Equal or tighter than ±6.45%
• Package / Case: Alternative surface mount packages acceptable if electrical performance is maintained

The substitute part AZ23C6V2-7-F from Diodes Incorporated meets all critical matching parameters and demonstrates improved specifications in power dissipation (300 mW) and tolerance (±5%), while maintaining identical Zener voltage, configuration, operating temperature range, and impedance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The AZ23C6V2-7-F is the qualified substitute for the CMLZDA6V2 TR based on the following engineering criteria:

Electrical Equivalence: All critical electrical parameters match or exceed the original specification. The Zener voltage (6.2 V), configuration (1 Pair Common Anode), impedance (10 Ohms), and operating temperature range (-65°C ~ 150°C) are identical. The substitute demonstrates superior tolerance (±5% versus ±6.45%) and increased power dissipation capability (300 mW versus 250 mW).

Product Status and Availability: The CMLZDA6V2 TR is classified as Obsolete with no active manufacturing. The AZ23C6V2-7-F is Active with confirmed inventory of 8605 pieces in stock, ensuring supply chain continuity.

Compliance and Certifications: The AZ23C6V2-7-F is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements. The original part status does not specify compliance certifications.

Package Consideration: The substitute uses SOT-23-3 packaging (also designated TO-236-3, SC-59) instead of SOT-563. Both are industry-standard surface mount packages with compatible pinout for this diode array configuration. PCB layout modification may be required to accommodate the different package footprint.

Frequently Asked Questions (FAQ)

Q: Can the AZ23C6V2-7-F directly replace the CMLZDA6V2 TR without circuit modification?

A: Electrical substitution is valid. All critical electrical parameters are equivalent or superior. However, the package change from SOT-563 to SOT-23-3 requires PCB footprint modification. Verify pinout compatibility and physical placement constraints in your specific application before implementation.

Q: What is the significance of the tolerance difference (±6.45% versus ±5%)?

A: The AZ23C6V2-7-F provides tighter tolerance, meaning the actual Zener voltage will remain closer to the nominal 6.2 V specification across the production range. This represents improved performance and is acceptable for applications designed around the original ±6.45% tolerance.

Q: Does the increased power rating (300 mW versus 250 mW) affect circuit operation?

A: No negative effects result from higher power rating. The substitute can safely dissipate more power without degradation. This provides additional thermal margin and reliability in applications operating near the original 250 mW limit.

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

A: The AZ23C6V2-7-F is ROHS3 Compliant and REACH Unaffected. The original CMLZDA6V2 TR does not specify compliance status. For applications requiring environmental compliance certification, the substitute meets current regulatory standards.

Q: What package considerations apply to this substitution?

A: The original SOT-563 package and substitute SOT-23-3 package are both surface mount configurations with three leads. Physical dimensions and footprints differ. Verify that your PCB design can accommodate the SOT-23-3 footprint, or request a custom layout modification from your manufacturing partner.

Q: Is the Common Anode configuration identical between both parts?

A: Yes. Both the CMLZDA6V2 TR and AZ23C6V2-7-F feature 1 Pair Common Anode configuration, ensuring identical circuit functionality and pinout compatibility at the electrical level.