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MMSZ5250CT1G

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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MMSZ5250CT1G

onsemi · Zener Diodes · SOD-123

MMSZ5250CT1G 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, marked by the polarity band on the SOD-123 package; the datasheet gives no separate electrical limit for this pin.
2 ANODE passive Anode of the Zener diode, opposite the polarity band; the datasheet gives no separate electrical limit for this pin.

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 19.6 20 20.4 V @ IZT 6.2 mA; TA = 25°C; 2% suffix C type 4
Zener voltage tolerance (C suffix) -2 2 % C Suffix Type numbers have a standard tolerance of ±2% on the nominal Zener voltages 4
Maximum Zener impedance ZZT 25 Ω @ IZT 6.2 mA 4
Maximum Zener impedance ZZK 600 Ω @ IZK 0.25 mA 4
Reverse leakage current IR 0.1 µA @ VR 15 V 4
Forward voltage VF 0.9 V @ IF = 10 mA 4
Total power dissipation on FR-5 board PD 500 mW @ TL = 75°C (Note 1, FR-5 = 3.5 X 1.5 inches, minimum recommended footprint) 1
Derating above 75°C PD 6.7 mW/°C Derated above 75°C 1
Thermal resistance, junction-to-ambient RJA 340 °C/W Note 2 (infrared scan method) 1
Thermal resistance, junction-to-lead RJL 150 °C/W Note 2 (infrared scan method) 1
Junction and storage temperature range TJ, Tstg -55 150 °C 1

CAD (KiCad official)

  • Symbol: MMSZ5250CT1G
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: mmsz5250ct1g-etched.step / mmsz5250ct1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmsz5250ct1g.step / mmsz5250ct1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (7 pp, sha256 dd020fc5576bb75b, retrieved 2026-10-21, 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