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MMSZ5227B_R1_00001

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PANJIT International Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MMSZ5227B_R1_00001

PANJIT International · Zener Diodes · SOD-123

MMSZ5227B_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 in the SOD-123 package, labeled as pin 1 in the datasheet pin diagram.
2 Anode passive Anode terminal of the Zener diode in the SOD-123 package, labeled as pin 2 in the datasheet pin diagram.

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
Nominal Zener Voltage (MMSZ5227B, Nom.) VZ 3.42 3.6 3.78 V IZ = 20 mA 2
Max Zener Impedance (at IZT) ZZT 24 Ω IZT = 20 mA 2
Max Zener Impedance (at IZK) ZZK 1700 Ω IZK = 0.25 mA 2
Max Reverse Leakage Current IR 15 µA VR = 1 V 2
Total Power Dissipation PD 500 mW Notes A: mounted on 100 cm² copper areas (1 mm thick) 1
Operating Junction and Storage Temperature Range TJ -55 150 OC 1
Typical Thermal Resistance, junction to ambient (Notes B) RθJA 430 OC/W Notes B: mounted on FR4 PCB, single-sided copper, mini pad 1
Typical Thermal Resistance, junction to ambient (Notes A) RθJA 325 OC/W Notes A: mounted on 100 cm² copper areas (1 mm thick) 1

CAD (KiCad official)

  • Symbol: MMSZ5227B_R1_00001
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: mmsz5227b-r1-00001-etched.step / mmsz5227b-r1-00001-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmsz5227b-r1-00001.step / mmsz5227b-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