MMBZ5253B MMBZ5253B is a 25V Zener diode from On Semiconductor with 350mW power dissipation and ±5% tolerance. It comes in a surface-mount SOT-23-3 package.
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MMBZ5253B

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
MMBZ5253B is a 25V Zener diode from On Semiconductor with 350mW power dissipation and ±5% tolerance. It comes in a surface-mount SOT-23-3 package.
Total Stock: 2,360 pcs
$ Price Range: $0.05 - $0.20

MMBZ5253B Available from 1 distributor

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2,360 pcs
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MMBZ5253B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Forward Voltage (Max @ 10 mA)
Impedance (Max) (Zzt)
Mounting Type
Operating Temperature
Power
SVHC Present
Storage Temperature
Supplier Device Package
Tape & Reel
Tolerance
Voltage

MMBZ5253B Description

Short technical summary and product information.

The MMBZ5253B is a Zener diode designed for voltage regulation and protection applications. It features a nominal Zener voltage of 25V with a tolerance of ±5%, making it suitable for precise voltage clamping and reference circuits. The device can dissipate up to 350mW of power, ensuring reliable operation under typical load conditions.

 

Electrical characteristics include a maximum Zener impedance of 35Ω at 20mA test current, a forward voltage drop of 0.9V maximum at 10mA, and a reverse leakage current of 100nA maximum at 19V. The diode operates over a junction temperature range of -55°C to +150°C, allowing use in harsh environments.

 

The MMBZ5253B is housed in a compact SOT-23-3 surface-mount package (also available as TO-236-3 or SC-59), making it ideal for space-constrained designs. It is part of the MMBZ5221B-MMBZ5257B series from On Semiconductor (formerly Fairchild Semiconductor).

MMBZ5253B Quick Information

Product Type: Zener Diode
Series: MMBZ5253B
Canonical Name: MMBZ5253B Zener Diode 25V 350mW 5% SOT-23-3
Subcategory: Single Zener Diode

MMBZ5253B Compliance

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

MMBZ5253B Estimated Pricing

Qty Low High
1+ $0.20 $0.20
10+ $0.14 $0.14
100+ $0.09 $0.09
500+ $0.06 $0.06
1,000+ $0.05 $0.05

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

MMBZ5253B Features

  • 25V nominal Zener voltage with ±5% tolerance.
  • 350mW power dissipation for low-power circuits.
  • Surface-mount SOT-23-3 compact package.
  • Operating temperature range -55°C to +150°C.
  • Low reverse leakage current of 100nA at 19V.

MMBZ5253B Applications

  • Voltage regulation in portable electronics.
  • Overvoltage protection for sensitive ICs.
  • Voltage reference in analog circuits.
  • Clamping in low-voltage power supplies.

MMBZ5253B FAQs

5 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of MMBZ5253B?

The nominal Zener voltage is 25V with a tolerance of ±5%.

What is the power dissipation of MMBZ5253B?

The maximum power dissipation is 350mW.

What package does MMBZ5253B come in?

It 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 forward voltage of MMBZ5253B?

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

What is the operating temperature range for MMBZ5253B?

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

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