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MMBZ5231B Zener Diode, 5.1V nominal, 225mW power dissipation, surface mount in SOT-23-3 package.
Mfr Part #:

MMBZ5231B

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener Diode, 5.1V nominal, 225mW power dissipation, surface mount in SOT-23-3 package.
Total Stock: 8,949 pcs
$ Price Range: $0.04

MMBZ5231B Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,000 pcs
3000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,985 pcs
2985 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,964 pcs
2964 pcs On Request 1 On Request On Request On Request On Request On Request

MMBZ5231B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Alternate Case Codes
Automotive Grade
Current
Halogen Free
Impedance (Max) (Zzt)
Industrial Grade
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Power
SVHC Present
Supplier Device Package
Tape & Reel
Tolerance
Voltage
Zener Voltage

MMBZ5231B Description

Short technical summary and product information.

The MMBZ5231B is a Zener diode from On Semiconductor, designed for voltage regulation and protection applications. It has a nominal Zener voltage of 5.1V with a tolerance of ±5%. The device offers a maximum power dissipation of 225mW (note: a conflicting value of 350mW is also present in available data).

 

Additional electrical characteristics include a maximum forward voltage of 900mV at 10mA forward current, a reverse leakage current of 5µA at 2V reverse voltage, and a maximum Zener impedance of 17Ω. The device operates over a temperature range of -55°C to 150°C.

 

The MMBZ5231B is supplied in a surface mount SOT-23-3 package, also known as TO-236-3 or SC-59. It is RoHS3 compliant (unverified) and has a moisture sensitivity level of 1 (unlimited).

MMBZ5231B Quick Information

Product Type: Zener Diode
Series: MMBZ5231B
Canonical Name: MMBZ5231B Zener Diode, 5.1V, 225mW, SOT-23-3
Subcategory: Single Zener Diode

MMBZ5231B Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: No

MMBZ5231B Estimated Pricing

Qty Low High
36,000+ $0.04 $0.04

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

MMBZ5231B Features

  • 5.1V nominal Zener voltage with ±5% tolerance.
  • 225mW maximum power dissipation (conflicting data).
  • Surface mount SOT-23-3 package.
  • Operating temperature range -55°C to 150°C.
  • 900mV maximum forward voltage at 10mA.

MMBZ5231B Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection and clamping.
  • Reference voltage generation.
  • Used in portable and battery-powered devices.

MMBZ5231B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the MMBZ5231B?

5.1V nominal with ±5% tolerance.

What is the power dissipation rating?

225mW maximum (from product description); a conflicting value of 350mW is present in attributes.

What is the forward voltage?

900mV maximum at 10mA forward current.

What is the reverse leakage current?

5µA maximum at 2V reverse voltage.

What is the operating temperature range?

-55°C to 150°C.

What is the package type?

SOT-23-3 (also TO-236-3, SC-59).

What is the Zener impedance?

17Ω maximum.

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