component

MMSZ5244ET1G

Public Made by Adom

by adom

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

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MMSZ5244ET1G

onsemi · Zener Diodes · SOD-123

MMSZ5244ET1G from onsemi, 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 of the Zener diode, indicated by the polarity band; the Zener voltage is 14 V nominal (13.30 V min to 14.70 V max) at IZT = 9.0 mA for MMSZ5244ET1G.
2 Anode passive Anode of the Zener diode (SOD-123 Case 425 Style 1, pin 2).

Key specifications

Parameter Value
Manufacturer onsemi
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 VZ 13.3 14 14.7 V @ IZT = 9.0 mA, TA = 25C 2
Zener Voltage Tolerance -5 5 % standard tolerance on nominal Zener voltage 2
Maximum Zener Impedance ZZT 15 Ω @ IZT = 9.0 mA 2
Maximum Zener Impedance ZZK 600 Ω @ IZK = 0.25 mA 2
Reverse Leakage Current IR 0.1 µA @ VR = 10 V 2
Forward Voltage VF 0.9 V @ IF = 10 mA 2
Peak Power Dissipation Ppk 225 W @ 20 µs, TL ≤ 25C (Note 1) 1
Total Power Dissipation on FR-5 Board PD 500 mW @ TL = 75C (Note 3) 1
Power Derating above 75C PD 6.7 mW/C Derated above 75C 1
Thermal Resistance, Junction-to-Ambient RθJA 340 C/W Note 2 1
Thermal Resistance, Junction-to-Lead RθJL 150 C/W Note 2 1
Junction and Storage Temperature Range TJ, Tstg -55 150 C 1

CAD (KiCad official)

  • Symbol: MMSZ5244ET1G
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: mmsz5244et1g-etched.step / mmsz5244et1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmsz5244et1g.step / mmsz5244et1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (7 pp, sha256 91363cf1ff9f2453, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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