MMSZ5251B_R1_00001 PANJIT MMSZ5251B is a 22V Zener diode with 500mW power dissipation in a SOD-123 surface mount package. It features a ±5% tolerance and low reverse leakage current.
Mfr Part #:

MMSZ5251B_R1_00001

Available from 2 distributors
Mfr Name: PANJIT
PANJIT
PANJIT MMSZ5251B is a 22V Zener diode with 500mW power dissipation in a SOD-123 surface mount package. It features a ±5% tolerance and low reverse leakage current.
Total Stock: 2,449 pcs
$ Price Range: $0.02 - $0.15

MMSZ5251B_R1_00001 Available from 2 distributors

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1,954 pcs
1954 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
495 pcs
495 pcs On Request 1 On Request On Request On Request On Request On Request

MMSZ5251B_R1_00001 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Halogen Free
Impedance (Max) (Zzt)
Marking Code
Mounting Type
Operating Temperature
Power
SVHC Present
Storage Temperature
Supplier Device Package
Tape & Reel
Terminal Finish
Termination Style
Test Current (Izt)
Thermal Resistance Junction To Ambient (Typical @ Mounted on 100 cm² (1 mm thick) copper area)
Thermal Resistance Junction To Ambient (Typical @ Mounted on FR 4 PCB, single-sided copper...)
Tolerance
Voltage
Weight
Zener Impedance (Maximum @ IZK = 0.25 mA)
Zener Voltage (Minimum/Nominal/Maximum)

MMSZ5251B_R1_00001 Description

Short technical summary and product information.

The PANJIT MMSZ5251B is a surface mount silicon Zener diode designed for voltage regulation and protection applications. It offers a nominal Zener voltage of 22V with a tolerance of ±5%, ensuring a voltage range of 20.9V to 23.1V.

 

With a maximum power dissipation of 500mW (when mounted on 100cm² copper area), this diode is suitable for low-power voltage regulation. It features a maximum Zener impedance of 29Ω at 5.6mA test current and 600Ω at 0.25mA. Reverse leakage current is limited to 0.1μA at 17V.

 

The device is housed in a SOD-123 molded plastic package, designed for automated assembly. It has solderable terminals per MIL-STD-750, Method 2026, and weighs approximately 0.0104 grams. The operating junction temperature range is -55°C to 150°C.

 

This Zener diode is RoHS compliant and lead-free, making it suitable for environmentally conscious designs. It is part of the MMSZ5221B~MMSZ5267B series, offering a range of voltage options.

MMSZ5251B_R1_00001 Quick Information

Product Type: Zener Diode
Series: MMSZ5221B~MMSZ5267B
Canonical Name: PANJIT MMSZ5251B Zener Diode, 22V, 500mW, SOD-123
Subcategory: Single Zener Diode

MMSZ5251B_R1_00001 Compliance

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

MMSZ5251B_R1_00001 Estimated Pricing

Qty Low High
1+ $0.15 $0.15
10+ $0.09 $0.09
100+ $0.06 $0.06
500+ $0.04 $0.04
1,000+ $0.04 $0.04
3,000+ $0.04 $0.04
6,000+ $0.03 $0.03
9,000+ $0.02 $0.02
24,000+ $0.02 $0.02

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

MMSZ5251B_R1_00001 Features

  • 22V nominal Zener voltage with ±5% tolerance.
  • 500mW power dissipation capability.
  • Surface mount SOD-123 package.
  • RoHS compliant and lead-free.
  • Operating temperature range -55°C to 150°C.

MMSZ5251B_R1_00001 Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection for sensitive components.
  • Voltage reference in analog circuits.
  • Used in consumer electronics and industrial controls.

MMSZ5251B_R1_00001 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of MMSZ5251B?

22V nominal, with a range of 20.9V to 23.1V.

What is the power dissipation?

500mW maximum when mounted on 100cm² copper area.

What is the package type?

SOD-123 surface mount package.

What is the tolerance?

±5%.

What is the reverse leakage current?

0.1μA at 17V reverse voltage.

What is the operating temperature range?

-55°C to 150°C junction temperature.

What is the marking code?

K1.

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