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Contents

README

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MMSZ5225B_R1_00001

PANJIT International · Zener Diodes · SOD-123

MMSZ5225B_R1_00001 from PANJIT International, in a SOD-123. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Cathode passive Cathode terminal of the Zener diode; the datasheet's maximum ratings for the device are 500 mW total power dissipation and an operating junction and storage temperature range of -55 to +150 °C.
2 Anode passive Anode terminal of the Zener diode, paired with the cathode (pin 1) across the device's 500 mW power dissipation and -55 to +150 °C temperature limits.

Key specifications

Parameter Value
Manufacturer PANJIT International
Package SOD-123
Category Diodes
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Zener voltage, min V Min. 2.85 V I Z = 20 mA (I ZT column) 2
Zener voltage, max V Max. 3.15 V I Z = 20 mA (I ZT column) 2
Max zener impedance Z ZT 30 Ω @ I ZT = 20 mA 2
Max zener impedance (knee) Z ZK 1600 Ω @ I ZK = 0.25 mA 2
Max reverse leakage current I R 50 µA @ V R = 1 V 2
Nominal zener voltage V Nom. 3 V 2
Total power dissipation PD 500 mW Notes A 1
Operating junction and storage temperature range TJ -55 150 °C 1
Typical thermal resistance, junction to ambient RθJA 430 °C/W Notes B or Notes A (layout ambiguous; value 430 as printed) 1
Typical thermal resistance, junction to ambient RθJA 325 °C/W Notes A or Notes B (layout ambiguous; value 325 as printed) 1

CAD (KiCad official)

  • Symbol: MMSZ5225B_R1_00001
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: mmsz5225b-r1-00001-etched.step / mmsz5225b-r1-00001-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmsz5225b-r1-00001.step / mmsz5225b-r1-00001.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: PANJIT International datasheet (6 pp, sha256 9961cd1c3a1662b0, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF