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MMSZ5255B MMSZ5255B is a 28V Zener diode from On Semiconductor with 500mW power dissipation in a SOD-123 surface mount package.
Mfr Part #:

MMSZ5255B

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
MMSZ5255B is a 28V Zener diode from On Semiconductor with 500mW power dissipation in a SOD-123 surface mount package.
✓ Total Stock: 5,556 pcs
$ Price Range: $0.04

MMSZ5255B Available from 1 distributor

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✓ Non-Authorised
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Flip Electronics ✓
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5,556 pcs
On Request
5556 pcs On Request 1 On Request On Request On Request On Request On Request
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MMSZ5255B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Impedance (Max) (Zzt)
Junction Temperature
Mounting Type
Operating Temperature
Power
Storage Temperature
Supplier Device Package
Tape & Reel
Tolerance
Voltage
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MMSZ5255B Description

Short technical summary and product information.

The MMSZ5255B is a 28V Zener diode from On Semiconductor designed for voltage regulation and protection applications. It features a nominal Zener voltage of 28V with ±5% tolerance, ensuring precise voltage clamping. The device can dissipate up to 500mW of power, making it suitable for low-power circuits.

 

Electrical characteristics include a maximum impedance of 44Ω at 20mA test current and 600Ω at 0.25mA knee current. Reverse leakage current is limited to 100nA at 21V reverse voltage. The forward voltage drop is 900mV maximum at 10mA forward current.

 

The MMSZ5255B is housed in a compact SOD-123 surface mount package, ideal for space-constrained PCB designs. It operates over a junction temperature range of -55°C to +150°C, with a thermal resistance of 340°C/W junction-to-ambient. This diode is RoHS3 compliant and has an MSL of 1 (unlimited).

MMSZ5255B Quick Information

Product Type: Zener Diode
Series: MMSZ5255B
Canonical Name: MMSZ5255B Zener Diode 28V 500mW SOD-123
Subcategory: Single Zener Diode

MMSZ5255B Compliance

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

MMSZ5255B Estimated Pricing

Qty Low High
39,000+ $0.04 $0.04

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

MMSZ5255B Features

  • 28V nominal Zener voltage with ±5% tolerance.
  • 500mW power dissipation capability.
  • Surface mount SOD-123 package.
  • Low reverse leakage of 100nA at 21V.
  • Operating temperature range -55°C to +150°C.

MMSZ5255B Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection for sensitive components.
  • Reference voltage generation in analog designs.
  • Clamping and transient suppression applications.

MMSZ5255B FAQs

5 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the MMSZ5255B?

The nominal Zener voltage is 28V, with a range of 26.6V to 29.4V.

What is the power dissipation of the MMSZ5255B?

The maximum power dissipation is 500mW.

What package is the MMSZ5255B available in?

The MMSZ5255B is available in a SOD-123 surface mount package.

What is the forward voltage of the MMSZ5255B?

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

What is the operating temperature range of the MMSZ5255B?

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

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