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MMBZ5251B MMBZ5251B is a 22V Zener diode with ±5% tolerance and 350mW power dissipation. Surface mount package SOT-23-3.
Mfr Part #:

MMBZ5251B

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
MMBZ5251B is a 22V Zener diode with ±5% tolerance and 350mW power dissipation. Surface mount package SOT-23-3.
✓ Total Stock: 54,207 pcs
$ Price Range: $0.04

MMBZ5251B Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
51,707 pcs
On Request
51707 pcs On Request 1 On Request On Request 1701+ On Request On Request
Bristol Electronics ✓
Non-Authorised Inventory information
2,500 pcs
On Request
2500 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MMBZ5251B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Impedance (Max) (Zzt)
Mounting Type
Operating Temperature
Power
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Style
Tolerance
Voltage
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MMBZ5251B Description

Short technical summary and product information.

The MMBZ5251B is a 22V Zener diode from On Semiconductor, part of the MMBZ5221B-MMBZ5257B series. It features a nominal Zener voltage of 22V with ±5% tolerance, tested at 5.6mA. The maximum Zener impedance (Zzt) is 29Ω at 5.6mA, and the typical Zener impedance (Zzk) is 600Ω at 0.25mA.

 

This diode has a maximum reverse leakage current of 100nA at 17V reverse voltage and a forward voltage of 900mV at 10mA. It can dissipate up to 350mW of power and operates over a junction temperature range of -55°C to 150°C.

 

The MMBZ5251B is housed in a surface mount SOT-23-3 package (also compatible with TO-236-3 and SC-59). It is designed for general purpose voltage regulation and protection applications in compact electronic assemblies.

MMBZ5251B Quick Information

Product Type: Zener Diode
Series: MMBZ5221B-MMBZ5257B
Canonical Name: MMBZ5251B Zener Diode 22V 350mW ±5% SOT-23-3
Subcategory: Single Zener Diode

MMBZ5251B Compliance

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

MMBZ5251B Estimated Pricing

Qty Low High
36,000+ $0.04 $0.04

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

MMBZ5251B Features

  • 22V Zener voltage with ±5% tolerance.
  • 350mW maximum power dissipation rating.
  • Surface mount SOT-23-3 package design.
  • 29Ω maximum Zener impedance at 5.6mA.
  • 100nA maximum reverse leakage at 17V.

MMBZ5251B Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection for sensitive components.
  • Reference voltage generation in analog designs.
  • General purpose clamping and limiting applications.

MMBZ5251B FAQs

5 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the MMBZ5251B?

The nominal Zener voltage is 22V at a test current of 5.6mA.

What is the power dissipation rating of the MMBZ5251B?

The maximum power dissipation is 350mW.

What is the forward voltage of the MMBZ5251B?

The maximum forward voltage is 900mV at a forward current of 10mA.

What package is the MMBZ5251B available in?

The MMBZ5251B is available in surface mount packages: TO-236-3, SC-59, and SOT-23-3. The supplier device package is SOT-23-3.

What is the operating temperature range of the MMBZ5251B?

The operating junction temperature range is -55°C to 150°C.

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