MM3Z13VT1 Equivalent & Substitute Parts

Part Overview

The MM3Z13VT1 is a Zener diode rated at 13 V nominal voltage with 200 mW maximum power dissipation in a surface mount SOD-323 package. Manufactured by onsemi, this component is classified as obsolete product status. Due to its obsolete designation, equivalent and substitute parts from active manufacturers are necessary for new designs and ongoing production requirements. Substitute components maintain the core electrical specifications while offering improved availability and compliance with current regulatory standards.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	13	V
Tolerance	±6%	-
Power - Max	200	mW
Impedance (Max)	30	Ohms
Current - Reverse Leakage @ Vr	100 nA @ 8 V	-
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	-
Operating Temperature Range	-65°C to 150°C	-
Mounting Type	Surface Mount	-
Package / Case	SC-76, SOD-323	-
RoHS Status	RoHS non-compliant	-

Substitute Part Grouping Explanation

Substitution of the MM3Z13VT1 is determined by the following critical parameters: nominal Zener voltage (13 V), maximum power dissipation capability, voltage tolerance, impedance characteristics, reverse leakage current, forward voltage drop, operating temperature range, and package type (SOD-323). Substitute parts are grouped into two categories based on power rating alignment:

Category 1: Direct Functional Equivalents (200 mW Power Rating) Parts matching the original 200 mW power specification with identical or superior electrical characteristics. These include BZT52C13S-7-F, BZT52C13S-TP, CZRF52C13, GDZ13B-HG3-08, and GDZ13B-HG3-18.

Category 2: Higher Power Capability Substitutes (300 mW Power Rating) Parts with increased power dissipation capacity while maintaining the 13 V Zener voltage specification. These include MM3Z13VT1G and BZX384-C13,115. These substitutes provide enhanced thermal performance for applications requiring additional power margin.

All substitute parts maintain surface mount SOD-323 package compatibility and operate within the -65°C to 150°C temperature range.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Zzt (Max)	Vf (Max) @ If	Temp Range	Package	Product Status	RoHS Status
MM3Z13VT1	onsemi	13 V	±6%	200 mW	30 Ω	900 mV @ 10 mA	-65°C to 150°C	SOD-323	Obsolete	Non-compliant
MM3Z13VT1G	onsemi	13 V	±6%	300 mW	30 Ω	900 mV @ 10 mA	-65°C to 150°C	SOD-323	Active	ROHS3 Compliant
BZX384-C13,115	Nexperia USA Inc.	13 V	±5%	300 mW	30 Ω	1.1 V @ 100 mA	-65°C to 150°C	SOD-323	Active	ROHS3 Compliant
CZRF52C13	Comchip Technology	13 V	±5%	200 mW	25 Ω	900 mV @ 10 mA	-55°C to 125°C	1005/SOD-323F	Active	ROHS3 Compliant
BZT52C13S-7-F	Diodes Incorporated	13 V	±6%	200 mW	30 Ω	900 mV @ 10 mA	-65°C to 150°C	SOD-323	Active	ROHS3 Compliant
BZT52C13S-TP	Micro Commercial Co	13 V	±6%	200 mW	30 Ω	900 mV @ 10 mA	-65°C to 150°C	SOD-323	Active	ROHS3 Compliant
GDZ13B-HG3-08	Vishay General Semiconductor	13 V	±2%	200 mW	30 Ω	-	-65°C to 150°C	SOD-323	Active	ROHS3 Compliant
GDZ13B-HG3-18	Vishay General Semiconductor	13 V	±2%	200 mW	30 Ω	-	-65°C to 150°C	SOD-323	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement with Identical Specifications: BZT52C13S-7-F and BZT52C13S-TP are parametric equivalents matching the MM3Z13VT1 across all critical electrical parameters: 13 V nominal voltage, ±6% tolerance, 200 mW power rating, 30 Ω maximum impedance, and -65°C to 150°C operating range. Both parts are active products with ROHS3 compliance, providing improved regulatory alignment over the obsolete original part.

For Enhanced Thermal Performance: MM3Z13VT1G and BZX384-C13,115 offer increased power dissipation at 300 mW while maintaining 13 V Zener voltage specification. MM3Z13VT1G is the direct onsemi successor with identical tolerance and temperature range. BZX384-C13,115 from Nexperia provides tighter voltage tolerance (±5%) and is suitable for applications requiring improved voltage regulation accuracy.

For Automotive Applications: GDZ13B-HG3-08 and GDZ13B-HG3-18 from Vishay are AEC-Q101 qualified automotive-grade components with superior voltage tolerance (±2%). These parts maintain 200 mW power rating and full temperature range compatibility, suitable for automotive and mission-critical applications.

For Constrained Temperature Environments: CZRF52C13 from Comchip Technology operates within -55°C to 125°C range with 200 mW power rating. This part is suitable for applications where the extended low-temperature performance of the original part is not required. Note the package variant (1005/SOD-323F) requires verification of PCB footprint compatibility.

All recommended substitutes are active products with current RoHS3 compliance, ensuring long-term availability and regulatory conformance.

Frequently Asked Questions (FAQ)

Q: Can MM3Z13VT1G be used as a direct replacement for MM3Z13VT1? A: Yes. MM3Z13VT1G maintains identical electrical specifications (13 V, ±6% tolerance, -65°C to 150°C) with increased power rating (300 mW vs. 200 mW). The higher power capability provides additional thermal margin without affecting circuit operation. Both use SOD-323 packaging with identical pinout.

Q: What is the difference between 200 mW and 300 mW power-rated substitutes? A: Power rating indicates maximum continuous power dissipation capability. 300 mW parts (MM3Z13VT1G, BZX384-C13,115) dissipate heat more efficiently and are suitable for higher current applications. 200 mW parts (BZT52C13S-7-F, BZT52C13S-TP, CZRF52C13, GDZ13B-HG3-08, GDZ13B-HG3-18) match the original specification and are appropriate for equivalent thermal environments.

Q: Are all substitute parts RoHS compliant? A: All listed substitute parts are ROHS3 compliant. The original MM3Z13VT1 is RoHS non-compliant. Substitution with any listed part improves regulatory compliance for new designs and production.

Q: Does CZRF52C13 have package compatibility issues? A: CZRF52C13 uses 1005/SOD-323F packaging, which differs from the standard SOD-323 of other substitutes. While electrically equivalent, PCB footprint verification is required before implementation. The 1005 (2512 Metric) designation indicates a larger package size.

Q: What is the significance of ±2% tolerance in GDZ13B-HG3-08 and GDZ13B-HG3-18? A: Tighter tolerance (±2% vs. ±6%) provides improved voltage regulation accuracy. These Vishay parts are suitable for precision voltage reference applications where voltage stability is critical. AEC-Q101 automotive qualification adds reliability assurance for demanding environments.

Q: Can BZX384-C13,115 be used in place of MM3Z13VT1? A: Yes. BZX384-C13,115 maintains 13 V Zener voltage with improved tolerance (±5%) and increased power rating (300 mW). Forward voltage specification differs (1.1 V @ 100 mA vs. 900 mV @ 10 mA), but this does not affect Zener diode operation in voltage regulation circuits. Nexperia active product status ensures long-term availability.

Q: What is the operating temperature range limitation for CZRF52C13? A: CZRF52C13 operates from -55°C to 125°C, compared to -65°C to 150°C for the original part. This 10°C reduction at the low end and 25°C reduction at the high end may be limiting for applications requiring extended temperature performance. Verify application temperature requirements before selection.

Q: Are all substitute parts available in the same packaging options? A: Most substitutes are available in Cut Tape (CT) and Tape & Reel (TR) formats. Specific packaging availability varies by manufacturer and distributor. Verify packaging requirements (reel size, quantity per reel) with component suppliers before procurement.

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