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MMBZ5228B 3.9V Zener diode with 350mW power dissipation, ±5% tolerance, surface mount SOT-23-3 package.
Mfr Part #:

MMBZ5228B

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
3.9V Zener diode with 350mW power dissipation, ±5% tolerance, surface mount SOT-23-3 package.
Total Stock: 4,196 pcs
$ Price Range: $0.04

MMBZ5228B Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,646 pcs
2646 pcs On Request 1 On Request On Request 0619 On Request On Request
Non-Authorised Inventory information
1,550 pcs
1550 pcs On Request 1 On Request On Request On Request On Request On Request

MMBZ5228B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Forward Voltage
Impedance (Max) (Zzt)
Mounting Type
Operating Junction Temperature
Operating Temperature
Power
Storage Temperature
Storage Temperature Range
Supplier Device Package
Tape & Reel
Tolerance
Voltage

MMBZ5228B Description

Short technical summary and product information.

The MMBZ5228B is a Zener diode from On Semiconductor designed for voltage regulation and protection in low-power circuits. It features a nominal Zener voltage of 3.9V with ±5% tolerance, ensuring stable reference or clamping. With a maximum power dissipation of 350mW, it is suitable for applications requiring up to 350mW in ambient conditions.

 

Electrical characteristics include a maximum impedance of 23Ω at 20mA test current, reverse leakage current of 10µA at 1V, and forward voltage of 0.9V at 10mA. The device operates over a junction temperature range up to 150°C and can be stored from -55°C to +150°C.

 

The MMBZ5228B is housed in a surface-mount SOT-23-3 package (also known as TO-236-3 or SC-59), making it ideal for compact PCB designs. Its small footprint and standard pinout simplify integration into voltage regulation, overvoltage protection, and reference circuits.

MMBZ5228B Quick Information

Product Type: Zener Diode
Series: MMBZ5221B-MMBZ5257B
Canonical Name: MMBZ5228B Zener Diode 3.9V 350mW Surface Mount
Subcategory: Single Zener Diode

MMBZ5228B Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MMBZ5228B Estimated Pricing

Qty Low High
36,000+ $0.04 $0.04

Estimated market price range - modelled values for guidance only, not live distributor offers.

MMBZ5228B Features

  • Zener voltage 3.9V nominal ±5% tolerance.
  • 350mW power dissipation rating.
  • Low impedance of 23Ω at 20mA.
  • Surface mount SOT-23-3 package.
  • Operating temperature up to 150°C.

MMBZ5228B Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection in portable devices.
  • Voltage reference for analog circuits.
  • Clamping and clipping applications.

MMBZ5228B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of MMBZ5228B?

The Zener voltage is 3.9V nominal with ±5% tolerance.

What is the maximum forward voltage?

The maximum forward voltage is 0.9V at 10mA forward current.

What is the package type?

The package is SOT-23-3 (also known as TO-236-3 or SC-59).

What is the maximum power dissipation?

The maximum power dissipation is 350mW.

What is the maximum reverse leakage current?

The maximum reverse leakage current is 10µA at 1V reverse voltage.

What is the operating temperature range?

The operating junction temperature is up to 150°C, and storage temperature range is -55°C to +150°C.

What is the impedance at test current?

The maximum impedance is 23Ω at 20mA test current.

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