MMSZ5255C-TP Equivalent & Substitute Parts Reference

Part Overview

The MMSZ5255C-TP by Micro Commercial Co is a surface mount Zener diode categorized under Diodes, Zener. This component features a nominal Zener voltage of 28 V, power dissipation up to 500 mW, and a ±2% tolerance. Housed in a SOD-123 package, its active product status ensures ongoing supply. Identifying alternative models is essential to maintain supply continuity, account for procurement requirements, and ensure design flexibility due to potential packaging, tolerance, or inventory considerations.

Key Parameters

Parameter	Value
Voltage - Zener (Nom) (Vz)	28 V
Tolerance	±2%
Power - Max	500 mW
Impedance (Max) (Zzt)	44 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 21 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	SOD-123
Supplier Device Package	SOD-123
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for MMSZ5255C-TP are selected based on strict adherence to the following key parameters: voltage - Zener (nominal 28 V), power rating (500 mW), tolerance, reverse leakage specifications, package/case (SOD-123), mounting type (surface mount), and product status (active). Only substitute models matching these parameters are considered suitable in the Zener diode category.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Zener (Nom) (Vz)	Tolerance	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Voltage - Forward (Vf) (Max) @ If	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	Product Status
MMSZ5255C-TP	Micro Commercial Co	28 V	±2%	500 mW	44 Ohms	100 nA @ 21 V	900 mV @ 10 mA	-55°C ~ 150°C (TJ)	Surface Mount	SOD-123	SOD-123	Active
MMSZ4712-E3-08	Vishay General Semiconductor	28 V	±5%	500 mW	-	10 nA @ 21.2 V	-	-55°C ~ 150°C	Surface Mount	SOD-123	SOD-123	Active
MMSZ5255BT1G	onsemi	28 V	±5%	500 mW	44 Ohms	100 nA @ 21 V	900 mV @ 10 mA	-55°C ~ 150°C	Surface Mount	SOD-123	SOD-123	Active
SZMMSZ5255BT1G	onsemi	28 V	±5%	500 mW	44 Ohms	100 nA @ 21 V	900 mV @ 10 mA	-55°C ~ 150°C	Surface Mount	SOD-123	SOD-123	Active

Engineering Selection Recommendations

All listed substitute parts—MMSZ4712-E3-08, MMSZ5255BT1G, and SZMMSZ5255BT1G—maintain active status and comply with provided regulatory standards, including REACH or ROHS3 where specified. These substitutes exhibit matching voltage, power, package type, and mounting configuration. Selection can be made based on equivalent compliance and inventory availability.

Frequently Asked Questions (FAQ)

Q: What key parameters must match for a Zener diode to be considered a substitute in this category?
A: Substitution requires matching Zener voltage, power rating, package/case (SOD-123), surface mount configuration, operating temperature range, product status, and, where applicable, reverse leakage and impedance.

Q: Are there differences in electrical or mechanical performance between MMSZ5255C-TP and its substitutes?
A: All substitutes match core electrical and mechanical specifications relevant for direct replacement in this category, as shown in the Parameter Comparison table.

Q: Does the SOD-123 package assure full footprint compatibility?
A: All parts listed share SOD-123 package and supplier device package identification, supporting direct footprint interchangeability within PCBs designed for this outline.

Q: How does tolerance variation affect selection?
A: The MMSZ5255C-TP has ±2% tolerance, while substitutes offer ±5%. This difference is reflected in the parameters table; substitution should align with application requirements as specified in design documentation.

Q: Are the alternative components actively supported in the market?
A: All substitute part numbers provided are listed as active, ensuring ongoing manufacturer support and supply stability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message