What is MMSZ5256BT1G?
MMSZ5256BT1G is a Diodes - Zener - Single component from ON Semiconductor. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
DIODE ZENER 30V 500MW SOD123

Pictures are for reference only. Please contact us for the latest pictures.
Key specifications
Serise
-
Min Quantity
1
Category
Discrete Semiconductor ProductsSub Categroy
Diodes - Zener - SingleDescription
DIODE ZENER 30V 500MW SOD123
key Attributes
-
Technical document
Review the latest datasheet for MMSZ5256BT1G from ON Semiconductor in a separate tab so engineers and buyers can check package, electrical characteristics, and application details without leaving this product page.
Why request a quote
Use the RFQ step to confirm the commercial and documentation details buyers usually need before placing an order.
Trust signals
Globally recognized certifications
Visible certifications work best when they are paired with clear operational promises around traceability, handling, and inspection.
ISO 9001
Quality management processes for more consistent sourcing and handling.
AS9120B
Aerospace-focused distribution controls for traceability and reliability.
ISO 14001
Environmental management discipline across warehouse and operating workflows.
ESD Control
Electrostatic handling standards to help protect sensitive components.
Authenticity Verification
CoC Available on Request
Pre-Shipment Inspection
Responsive RFQ Support
Why buyers trust this sourcing flow
Our quality workflow is designed to reduce counterfeit risk and support confident procurement. Components are reviewed through documented handling and inspection steps so buyers can evaluate sourcing with stronger authenticity controls.
Structured product content
Jump between overview, specs, and related sourcing content without scanning one long uninterrupted page.
Product overview
The MMSZ5256BT1G is a Zener diode manufactured by ON Semiconductor, designed for voltage regulation and protection applications. This component is part of the MMSZ series of Zener diodes, which are known for their reliability and performance in various electronic circuits.
Zener Voltage: The MMSZ5256BT1G has a Zener voltage of approximately 5.6 volts, which makes it suitable for applications requiring voltage clamping or regulation around this value.
Power Dissipation: It can handle a maximum power dissipation of 500 mW, allowing it to operate effectively in circuits where it may encounter varying levels of power.
Package Type: The diode is housed in a small SOD-123 package, which is surface-mountable. This compact form factor is ideal for modern electronic designs where space is a premium.
Temperature Range: The operating temperature range for the MMSZ5256BT1G is typically from -55°C to +150°C, making it suitable for a wide range of environmental conditions.
Reverse Leakage Current: The device features a low reverse leakage current, which is crucial for maintaining efficiency in voltage regulation applications.
Applications: Common applications for the MMSZ5256BT1G include voltage regulation, over-voltage protection, and signal clamping in various electronic devices, including consumer electronics, automotive systems, and industrial equipment.
Electrical Characteristics: The diode exhibits stable Zener characteristics, ensuring consistent performance over its specified voltage and current ranges.
The MMSZ5256BT1G from ON Semiconductor is a versatile Zener diode that provides reliable voltage regulation and protection in a compact, surface-mount package. Its robust specifications make it suitable for a variety of applications, ensuring that it can meet the demands of modern electronic designs while maintaining efficiency and performance.
Full technical breakdown
Review grouped attributes and parameters without scanning one oversized table.
Fast scan
Product Parameter
Voltage - Forward (Vf) (Max) @ If
900mV @ 10mA
Product Parameter
Diode Type
ZENER DIODE
Product Parameter
Forward Voltage
900mV
Product Parameter
Number Of Elements
1
Product Parameter
Max Reverse Leakage Current
100nA
Product Parameter
Peak Reverse Current
100nA
Common questions
Quick answers for buyers reviewing MMSZ5256BT1G, stock, documentation, and sourcing steps.
MMSZ5256BT1G is a Diodes - Zener - Single component from ON Semiconductor. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
MMSZ5256BT1G is listed with package reference SOD123. The current product description is DIODE ZENER 30V 500MW SOD123, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
This page currently shows 81932 units in stock and 31210 units available for MMSZ5256BT1G. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for MMSZ5256BT1G by ON Semiconductor. The TrustCompo team can review price, availability, and documentation support.
Yes. This page links to the datasheet for MMSZ5256BT1G by ON Semiconductor, so engineers and buyers can review package, ratings, and application details before purchase.
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for MMSZ5256BT1G before approving the order.
Diodes - Zener - Single
Explore more parts from the same subcategory to compare fit, stock, and sourcing options.

DIODE ZENER 3.6V 5W AXIAL

DIODE ZENER 2.7V 225MW SOT23-3

DIODE ZENER 33V 225MW SOT23-3

DIODE ZENER 15V 500MW SOD523

DIODE ZENER 6.8V 200MW SOD323

DIODE ZENER 17V 5W AXIAL
More sourcing insights
Jun 29, 2026
How Wolfspeed's 2026 SiC supply story changes procurement decisions — what to lock-buy, where to qualify a second source, and the MPN-level continuity boundaries that actually matter.
Jun 25, 2026
A practical MOSFET selection guide for power design teams covering voltage class, Rds(on), gate charge, package thermal limits, and sourcing-safe alternative logic.
Jun 19, 2026
2026 Vishay, Onsemi and Infineon power MOSFET shortage buyer framework: part-family risk matrix, datasheet-verified alternatives, and three procurement actions to act on before Infineon's July price increase.
