MM5Z2V7 Equivalent & Substitute Parts

Part Overview

The MM5Z2V7 is a Zener diode manufactured by onsemi, rated at 2.7 V nominal with 200 mW maximum power dissipation in a surface mount SOD-523F package. This component is classified as obsolete, indicating discontinuation from the manufacturer. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this voltage regulation component.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	2.7 V
Power - Max	200 mW
Tolerance	±7%
Impedance (Max)	100 Ohms
Current - Reverse Leakage @ Vr	20 µA @ 1 V
Operating Temperature Range	-55°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	SC-79, SOD-523F

Substitute Part Grouping Explanation

Substitution of the MM5Z2V7 is determined by the following critical parameters: nominal Zener voltage (2.7 V), maximum power dissipation capability, voltage tolerance, impedance characteristics, reverse leakage current, operating temperature range, and surface mount package compatibility.

Substitute parts are grouped into two categories:

Direct Substitutes maintain identical or superior electrical specifications within the same package family (SOD-523), allowing pin-for-pin replacement with no circuit modifications.

Similar Substitutes provide equivalent voltage regulation at 2.7 V but may differ in power rating, package type (SOD-323F), or tolerance specifications. These require verification of power dissipation requirements and physical board layout compatibility before implementation.

All substitute candidates maintain the 2.7 V nominal Zener voltage, 20 µA reverse leakage current specification, and surface mount technology. Differences in power ratings, tolerance, impedance, and package form factor determine suitability for specific applications.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Power (Max)	Tolerance	Zzt (Max)	Package	Status
MM5Z2V7	onsemi	2.7 V	200 mW	±7%	100 Ohms	SOD-523F	Obsolete
MM5Z2V7T1G	onsemi	2.7 V	500 mW	±7.4%	100 Ohms	SOD-523	Active
BZT52C2V7T-TP	Micro Commercial Co	2.7 V	100 mW	±5%	100 Ohms	SOD-523	Active
BZT52H-C2V7,115	Nexperia USA Inc.	2.7 V	375 mW	±5%	83 Ohms	SOD-123F	Active
BZX584C2V7_R1_00001	Panjit International Inc.	2.7 V	200 mW	±5%	100 Ohms	SOD-523	Active
BZX585-B2V7,115	Nexperia USA Inc.	2.7 V	300 mW	±2%	100 Ohms	SOD-523	Active
BZX585-B2V7,135	Nexperia USA Inc.	2.7 V	300 mW	±2%	100 Ohms	SOD-523	Active
BZX84J-B2V7,115	Nexperia USA Inc.	2.7 V	550 mW	±2%	100 Ohms	SOD-323F	Active
BZX84J-C2V7,115	Nexperia USA Inc.	2.7 V	550 mW	±5%	100 Ohms	SOD-323F	Active
PZU2.7B,115	Nexperia USA Inc.	2.7 V	310 mW	±5%	100 Ohms	SOD-323F	Active

Engineering Selection Recommendations

For Direct SOD-523 Package Replacement:

MM5Z2V7T1G (onsemi) provides the closest functional equivalent with active product status. This part maintains the same manufacturer lineage, identical nominal voltage, and compatible SOD-523 package. The increased power rating (500 mW versus 200 mW) provides design margin without circuit modification. Tolerance specification (±7.4%) is comparable to the original (±7%).

BZX584C2V7_R1_00001 (Panjit International Inc.) offers identical power rating (200 mW) and package compatibility (SOD-523) with improved tolerance (±5%). This part is suitable for applications where power dissipation is tightly constrained.

BZX585-B2V7,115 and BZX585-B2V7,135 (Nexperia USA Inc.) provide enhanced specifications with 300 mW power rating, superior tolerance (±2%), and AEC-Q100 automotive qualification. Both variants are functionally identical and suitable for applications requiring higher reliability margins.

For Alternative Package Consideration:

BZX84J-B2V7,115 and BZX84J-C2V7,115 (Nexperia USA Inc.) utilize the SOD-323F package with 550 mW power rating and AEC-Q101 automotive qualification. These parts require board layout modification due to different package footprint but offer significantly higher power dissipation capability.

PZU2.7B,115 (Nexperia USA Inc.) provides 310 mW in SOD-323F package with AEC-Q100 qualification, suitable for applications requiring intermediate power handling in alternative package form.

For Power-Constrained Applications:

BZT52C2V7T-TP (Micro Commercial Co) is limited to 100 mW power dissipation and is suitable only for applications where the original 200 mW specification exceeds actual circuit requirements.

All recommended substitutes maintain RoHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity level (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can MM5Z2V7T1G be used as a direct replacement for MM5Z2V7?

A: Yes. MM5Z2V7T1G is manufactured by onsemi with identical nominal voltage (2.7 V), compatible SOD-523 package, and comparable tolerance. The increased power rating (500 mW) provides additional design margin. No circuit modifications are required.

Q: What is the difference between BZX585-B2V7,115 and BZX585-B2V7,135?

A: Both parts are functionally identical with 2.7 V nominal voltage, 300 mW power rating, ±2% tolerance, and SOD-523 package. The suffix designations (115 and 135) represent different manufacturing date codes or tape reel configurations. Electrical performance is equivalent.

Q: Can BZX84J-B2V7,115 replace MM5Z2V7 without circuit changes?

A: BZX84J-B2V7,115 maintains the 2.7 V voltage specification and provides superior electrical characteristics (550 mW, ±2% tolerance, AEC-Q101). However, the package differs (SOD-323F versus SOD-523F), requiring board layout modification and PCB footprint redesign. Electrical substitution is valid; physical implementation requires design revision.

Q: Which substitute offers the best tolerance specification?

A: BZX585-B2V7,115 and BZX585-B2V7,135 both provide ±2% tolerance, superior to the original MM5Z2V7 specification of ±7%. BZX84J-B2V7,115 also offers ±2% tolerance in a larger package.

Q: Are all substitutes RoHS compliant?

A: Yes. All substitute parts listed maintain RoHS3 compliance status.

Q: What is the minimum power rating required for a direct SOD-523 replacement?

A: The original MM5Z2V7 specifies 200 mW. Direct SOD-523 substitutes with equal or greater power ratings are BZX584C2V7_R1_00001 (200 mW), BZX585-B2V7,115 (300 mW), BZX585-B2V7,135 (300 mW), and MM5Z2V7T1G (500 mW). BZT52C2V7T-TP (100 mW) is suitable only if circuit analysis confirms lower power dissipation requirements.

Q: Do any substitutes carry automotive qualification?

A: Yes. BZT52H-C2V7,115 carries AEC-Q101 qualification. BZX585-B2V7,115, BZX585-B2V7,135, BZX84J-B2V7,115, BZX84J-C2V7,115, and PZU2.7B,115 carry AEC-Q100 or AEC-Q101 automotive qualifications, suitable for automotive and high-reliability applications.

Q: What is the impedance difference between substitutes?

A: Most substitutes maintain 100 Ohms maximum impedance, matching the original specification. BZT52H-C2V7,115 specifies 83 Ohms maximum impedance, providing lower dynamic impedance for improved voltage regulation performance.

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