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MMBZ5230B This is a Zener diode with a nominal voltage of 4.7V and maximum power dissipation of 350mW. It is surface mount packaged in SOT-23.
Mfr Part #:

MMBZ5230B

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
This is a Zener diode with a nominal voltage of 4.7V and maximum power dissipation of 350mW. It is surface mount packaged in SOT-23.
Total Stock: 8,854 pcs
$ Price Range: $0.04

MMBZ5230B 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
7,854 pcs
7854 pcs On Request 1 On Request On Request 532 On Request On Request
Non-Authorised Inventory information
1,000 pcs
1000 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

MMBZ5230B Specifications Quick View

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

MMBZ5230B Description

Short technical summary and product information.

The MMBZ5230B from On Semiconductor is a unidirectional Zener diode designed for voltage regulation and protection circuits. It features a nominal Zener voltage of 4.7V with a tolerance of ±5%, ensuring precise voltage clamping. The device can dissipate up to 350mW of power, making it suitable for low-power applications.

 

Key electrical characteristics include a maximum impedance (Zzt) of 19Ω and a reverse leakage current of 5µA at 2V reverse voltage. These parameters ensure stable operation within the specified voltage range.

 

The diode is housed in a SOT-23 surface mount package, which is compact and suitable for automated assembly. The package is also known as TO-236-3 or SC-59. As a surface mount component, it is ideal for space-constrained designs in portable electronics and embedded systems.

MMBZ5230B Quick Information

Product Type: Zener Diode
Canonical Name: MMBZ5230B Zener Diode 4.7V 350mW ±5% SOT-23
Subcategory: Single

MMBZ5230B Compliance

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

MMBZ5230B Estimated Pricing

Qty Low High
36,000+ $0.04 $0.04

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

MMBZ5230B Features

  • Nominal zener voltage of 4.7V.
  • Maximum power dissipation of 350mW.
  • Tolerance of ±5%.
  • Surface mount SOT-23 package.
  • Low reverse leakage current of 5µA.

MMBZ5230B Applications

  • Suitable for voltage regulation circuits.
  • Used in overvoltage protection applications.
  • Ideal for portable electronics due to small size.
  • Can be used in clamping circuits.

MMBZ5230B FAQs

6 frequently asked questions generated from this part’s specifications.
What is the nominal Zener voltage of the MMBZ5230B?

The nominal Zener voltage is 4.7V.

What is the tolerance of the Zener voltage?

The tolerance is ±5%.

What is the maximum power dissipation of this diode?

The maximum power dissipation is 350mW.

What is the maximum impedance (Zzt) of the MMBZ5230B?

The maximum impedance is 19Ω.

What is the reverse leakage current at 2V?

The reverse leakage current is 5µA at VR = 2V.

What package is the MMBZ5230B available in?

It is available in a SOT-23 surface mount package (also TO-236-3, SC-59).

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