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MMSZ5248BS

Public Made by Adom

by adom

Yangzhou Yangjie Elec Tech Zener Diodes, SOD-323(SC-90). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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MMSZ5248BS

Yangzhou Yangjie Elec Tech · Zener Diodes · SOD-323(SC-90)

MMSZ5248BS from Yangzhou Yangjie Elec Tech, in a SOD-323(SC-90). 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer Yangzhou Yangjie Elec Tech
Package SOD-323(SC-90)
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 17.1 18 18.9 V @ IZT = 7 mA 2
Zener impedance ZZT 21 Ω @ IZT = 7 mA 2
Zener impedance (knee) ZZK 600 Ω @ IZK = 0.25 mA 2
Reverse leakage current IR 0.1 μA @ VR = 14.0 V 2
Forward voltage VF 0.9 V @ IF = 10 mA 1
Power dissipation PD 200 mW 1
Junction temperature TJ -55 150 ℃ 1
Storage temperature TSTG -55 150 ℃ 1
Thermal resistance, junction-to-ambient RθJ-A 625 ℃/W Mounted on P.C.B. with 8mm*9mm copper pad areas 3
Thermal resistance, junction-to-case RθJ-C 500 ℃/W Mounted on P.C.B. with 8mm*9mm copper pad areas 3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin  Terminals：Tin plated leads, solderable per J-STD-002 and JESD22-B102 1

CAD (KiCad official)

  • Symbol: MMSZ5248BS
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323(SC-90) (KiCad packages3D, STEP)
  • 3D model files: mmsz5248bs-etched.step / mmsz5248bs-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmsz5248bs.step / mmsz5248bs.glb are the bare package body.

Provenance

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

  • Datasheet: Yangzhou Yangjie Elec Tech datasheet (5 pp, sha256 e246c6a238f9f165, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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