component

MMSZ5266B

Public Made by Adom

by adom

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

componentdiodesmmsz5266bfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 8d ago
viewers mmsz5266b: viewers · Ray 8d ago
mmsz5266b-etched.glb Publish 0.1.0 · Ray 8d ago
mmsz5266b-etched.step mmsz5266b: factory component page (tier=lcsc) · Ray 8d ago
mmsz5266b-hero.glb mmsz5266b: hero GLB from the etched model (keeps the MPN mark) · Ray 8d ago
mmsz5266b-hero.overlay.json Publish 0.1.0 · Ray 8d ago
mmsz5266b.glb Publish 0.1.0 · Ray 8d ago
mmsz5266b.kicad_mod Publish 0.1.0 · Ray 8d ago
mmsz5266b.kicad_sym Publish 0.1.0 · Ray 8d ago
mmsz5266b.lbr Publish 0.1.0 · Ray 8d ago
mmsz5266b.step Publish 0.1.0 · Ray 8d ago
package.json Publish 0.1.0 · Ray 8d ago
page.json Set visibility: public · Ray 8d ago
README.md Publish 0.1.0 · Ray 8d ago

MMSZ5266B

MSKSEMI · Zener Diodes · SOD-123

MMSZ5266B from MSKSEMI, 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 K passive Cathode of the Zener diode, the left terminal on the pin-configuration symbol (bar side); it is positive in normal Zener operation, with VZ of 64.6 V min to 71.4 V max at IZT = 1.8 mA for the MMSZ5266B.
2 A passive Anode of the Zener diode, the right terminal on the pin-configuration symbol (triangle side), with forward voltage VF of 0.9 V at IF = 10 mA.

Key specifications

Parameter Value
Manufacturer MSKSEMI
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 64.6 68 71.4 V @ IZT = 1.8 mA, Ta=25 3
Maximum Zener impedance ZZT 230 Ω @ IZT = 1.8 mA 3
Maximum Zener impedance ZZK 1600 Ω @ IZK = 0.25 mA 3
Maximum reverse current IR 0.1 uA @ VR = 52 V 3
Power dissipation Pd 500 mW Ta=25 ℃; device mounted on ceramic PCB, 7.6 mm x 9.4 mm x 0.87 mm with pad areas 25 mm² (Note 1) 2
Operation junction and storage temperature range TJ,Tstg -55 150 ℃ 2
Thermal resistance, junction to ambient air RθJA 357 ℃/W 2
Forward voltage VF 0.9 V @ IF = 10 mA; tested with pulses, Tp≤1.0 ms (Note 2) 2

CAD (KiCad official)

  • Symbol: MMSZ5266B
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: mmsz5266b-etched.step / mmsz5266b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmsz5266b.step / mmsz5266b.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (6 pp, sha256 3baa91984b169107, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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