MM5Z27VT5G Equivalent & Substitute Parts

Part Overview

The MM5Z27VT5G is an active zener diode manufactured by onsemi, designed for voltage regulation and protection applications. This surface mount component operates at a nominal zener voltage of 27 V with a maximum power dissipation of 500 mW in the SOD-523 package. The part is ROHS3 compliant and carries an unlimited moisture sensitivity level (MSL 1), making it suitable for standard industrial and commercial applications. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and packaging options while maintaining identical electrical performance and thermal characteristics.

Substiute Parts

MM5Z27VT5G

onsemiIn Stock: 694MM5Z27VT5G Datasheet

Current PartRFQ

SZMM5Z27VT5G

onsemiIn Stock: 8888SZMM5Z27VT5G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MM5Z27VT5G is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part SZMM5Z27VT5G maintains identical specifications for zener voltage (27 V nominal), tolerance (±7.04%), maximum power dissipation (500 mW), impedance (80 Ohms maximum), reverse leakage current (50 nA @ 18.9 V), forward voltage (900 mV @ 10 mA), and operating temperature range (-65°C to 150°C). Both parts use the SOD-523 surface mount package and are ROHS3 compliant with MSL 1 rating.

The key parameters that determine substitution eligibility are:

• Voltage - Zener (Nom): 27 V
• Tolerance: ±7.04%
• Power - Max: 500 mW
• Impedance (Max): 80 Ohms
• Current - Reverse Leakage @ Vr: 50 nA @ 18.9 V
• Voltage - Forward (Vf) (Max) @ If: 900 mV @ 10 mA
• Operating Temperature: -65°C ~ 150°C (TJ)
• Package / Case: SC-79, SOD-523
• Mounting Type: Surface Mount

Parameter Comparison

Engineering Selection Recommendations

Both MM5Z27VT5G and SZMM5Z27VT5G are active products manufactured by onsemi with full ROHS3 compliance and identical electrical specifications. Selection between these parts is based on packaging and supply availability rather than electrical performance.

The MM5Z27VT5G is supplied in standard packaging configuration with 675 pieces currently in stock. The SZMM5Z27VT5G is supplied in Cut Tape (CT) and Digi-Reel® packaging with 8867 pieces in stock and carries AEC-Q101 automotive qualification. Both parts are suitable for direct substitution in applications requiring a 27 V zener diode with 500 mW power dissipation in SOD-523 surface mount package.

Selection should be based on packaging requirements, supply chain logistics, and inventory availability. The SZMM5Z27VT5G automotive qualification does not restrict its use in non-automotive applications and represents an additional quality assurance level.

Frequently Asked Questions (FAQ)

Q: Can SZMM5Z27VT5G replace MM5Z27VT5G in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including zener voltage (27 V), power rating (500 mW), tolerance (±7.04%), impedance (80 Ohms), and operating temperature range (-65°C to 150°C). Both use the SOD-523 surface mount package and are ROHS3 compliant.

Q: What is the difference between MM5Z27VT5G and SZMM5Z27VT5G?

A: The primary differences are packaging format and automotive qualification. SZMM5Z27VT5G is supplied in Cut Tape (CT) and Digi-Reel® packaging and carries AEC-Q101 automotive qualification. MM5Z27VT5G uses standard packaging. All electrical and thermal specifications are identical.

Q: Are there any temperature or voltage derating considerations when substituting these parts?

A: No. Both parts operate across the identical temperature range (-65°C to 150°C junction temperature) and maintain the same zener voltage specification (27 V nominal) with ±7.04% tolerance. No derating adjustments are required for substitution.

Q: Does the SOD-523 package remain the same for both parts?

A: Yes. Both MM5Z27VT5G and SZMM5Z27VT5G use the SC-79 / SOD-523 surface mount package. PCB footprints and assembly processes remain unchanged.

Q: What is the significance of AEC-Q101 qualification on SZMM5Z27VT5G?

A: AEC-Q101 is an automotive industry qualification standard for discrete semiconductors. This certification indicates the part meets automotive reliability and quality requirements. The qualification does not restrict use in non-automotive applications and represents an additional quality assurance level applicable to all end markets.

Q: Are both parts RoHS compliant?

A: Yes. Both MM5Z27VT5G and SZMM5Z27VT5G are ROHS3 compliant and carry unlimited moisture sensitivity level (MSL 1), indicating no special storage or handling requirements.