MM5Z24VT1 Zener Diode Equivalent & Substitute Parts

Part Overview

The MM5Z24VT1 is a 24V zener diode manufactured by onsemi, rated for 100mW power dissipation in a SOD-523 surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The MM5Z24VT1 is RoHS non-compliant and has unlimited moisture sensitivity rating (MSL 1). Identifying compatible alternatives ensures design continuity and access to active inventory.

Substiute Parts

MM5Z24VT1

onsemiIn Stock: 1473MM5Z24VT1 Datasheet

Current PartRFQ

MM5Z24VT1G

onsemiIn Stock: 125327MM5Z24VT1G Datasheet

DirectRFQ

BZX585-C24,115

NXP SemiconductorsIn Stock: 252288BZX585-C24,115 Datasheet

SimilarRFQ

CZRU52C24

Comchip TechnologyIn Stock: 4928CZRU52C24 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MM5Z24VT1 zener diode is determined by the following critical parameters:

Primary Substitution Criteria:

• Zener voltage: 24V nominal
• Package type: SOD-523 surface mount
• Mounting type: Surface mount
• Moisture sensitivity level: MSL 1 (Unlimited)
• REACH compliance status: REACH Unaffected

Secondary Compatibility Factors:

• Operating temperature range compatibility
• Zener voltage tolerance (±5% to ±6%)
• Maximum power dissipation (100mW minimum for direct replacement)
• Reverse leakage current specifications
• Forward voltage characteristics

Substitute parts are grouped into direct equivalents (same power rating and active status) and functional alternatives (different power ratings but same voltage and package specifications). All listed substitutes maintain the 24V zener voltage specification and SOD-523 package format required for mechanical and electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

MM5Z24VT1G (onsemi) - Direct Equivalent

The MM5Z24VT1G is the active production equivalent of the obsolete MM5Z24VT1. Both are manufactured by onsemi and share the same base product number (MM5Z2 series). The MM5Z24VT1G offers higher power dissipation (500mW versus 100mW), ROHS3 compliance, and active product status with substantial inventory availability (125,300 units). This part is the primary replacement for new designs and ongoing production requiring the MM5Z24VT1.

BZX585-C24,115 (NXP Semiconductors) - Functional Substitute

The BZX585-C24,115 provides a 24V zener diode in SOD-523 package with 300mW power rating and ±5% tolerance. This NXP part maintains electrical compatibility with the original specification and offers active product status. The 300mW rating exceeds the original 100mW specification, providing design margin. Inventory availability is high (252,265 units). This part is suitable for applications where NXP component qualification is required or preferred.

CZRU52C24 (Comchip Technology) - Functional Substitute

The CZRU52C24 is a 24V zener diode rated for 150mW in SOD-523F package format. Manufactured by Comchip Technology with ROHS3 compliance and ±5% tolerance, this part meets the core electrical requirements. The 150mW rating exceeds the original 100mW specification. Operating temperature range is -55°C to 125°C, which is narrower than other alternatives. This part is suitable for applications with standard industrial temperature requirements and where Comchip component qualification exists.

All substitute parts maintain REACH Unaffected status and MSL 1 rating consistent with the original component.

Frequently Asked Questions (FAQ)

Q: Can MM5Z24VT1G directly replace MM5Z24VT1 in existing designs?

A: Yes. The MM5Z24VT1G is the active production equivalent manufactured by onsemi. Both parts share the same 24V zener voltage, SOD-523 package, and surface mount configuration. The MM5Z24VT1G provides higher power dissipation (500mW versus 100mW), which is compatible with designs rated for the original 100mW specification.

Q: What is the difference between the substitute parts in terms of power rating?

A: The MM5Z24VT1 is rated for 100mW. Substitute parts offer different power ratings: MM5Z24VT1G (500mW), BZX585-C24,115 (300mW), and CZRU52C24 (150mW). All exceed the original specification, providing design margin. Selection depends on circuit power requirements and thermal management capabilities.

Q: Are all substitute parts RoHS compliant?

A: MM5Z24VT1G and CZRU52C24 are ROHS3 compliant. The original MM5Z24VT1 is RoHS non-compliant. BZX585-C24,115 RoHS status is not specified in available data. For applications requiring RoHS compliance, MM5Z24VT1G or CZRU52C24 are appropriate selections.

Q: Do all substitute parts use the same package format?

A: All substitute parts use SOD-523 or equivalent surface mount packages (SC-79, SOD-523F). These are mechanically and electrically compatible for PCB assembly. CZRU52C24 is specified as 2-SMD, No Lead in 0603/SOD-523F format, which is compatible with standard SOD-523 footprints.

Q: What is the operating temperature range for each substitute?

A: MM5Z24VT1G and BZX585-C24,115 operate from -65°C to 150°C. CZRU52C24 operates from -55°C to 125°C. For applications requiring extended low-temperature operation below -55°C, MM5Z24VT1G or BZX585-C24,115 are required.

Q: Which substitute part has the best inventory availability?

A: BZX585-C24,115 has the highest inventory (252,265 units). MM5Z24VT1G has 125,300 units. CZRU52C24 has 4,877 units. For high-volume production, BZX585-C24,115 or MM5Z24VT1G are preferred.

Q: Can I use these parts interchangeably in the same circuit?

A: Yes, within the constraints of your circuit design. All parts maintain 24V zener voltage and SOD-523 package compatibility. Verify that your circuit can accommodate the higher power ratings of the substitutes. Confirm operating temperature requirements match the selected part's range.

Q: What is the zener voltage tolerance for each part?

A: MM5Z24VT1 tolerance is not specified. MM5Z24VT1G has ±6% tolerance. BZX585-C24,115 and CZRU52C24 have ±5% tolerance. For applications requiring tighter voltage tolerance, BZX585-C24,115 or CZRU52C24 are preferred.