component
MM3Z75B
Public Made by Adomby adom
Shandong Jingdao Microelectronics Zener Diodes, SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 4d ago |
| viewers | 4d ago |
| mm3z75b-etched.glb | 4d ago |
| mm3z75b-etched.step | 4d ago |
| mm3z75b-hero.glb | 4d ago |
| mm3z75b-hero.overlay.json | 4d ago |
| mm3z75b.glb | 4d ago |
| mm3z75b.kicad_mod | 4d ago |
| mm3z75b.kicad_sym | 4d ago |
| mm3z75b.lbr | 4d ago |
| mm3z75b.step | 4d ago |
| package.json | 4d ago |
| page.json | 4d ago |
| README.md | 4d ago |
MM3Z75B
Shandong Jingdao Microelectronics · Zener Diodes · SOD-323
MM3Z75B from Shandong Jingdao Microelectronics, in a SOD-323. 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; MM3Z75B has a nominal zener voltage of 75V (73.5V min to 76.5V max) at IZT = 2mA. |
| 2 | Anode | passive | Anode of the zener diode; forward voltage is 0.9V at IF = 10mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shandong Jingdao Microelectronics |
| Package | SOD-323 |
| 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 | VZT | 73.5 | 75 | 76.5 | V | at IZT = 2 mA, pulse 20 ms | 2 |
| Zener test current | IZT | 2 | mA | 2 | |||
| Dynamic Impedance | ZZT | 265 | Ω | at IZT | 2 | ||
| Reverse Current | IR | 0.1 | μA | at VR = 56 V | 2 | ||
| Zener Voltage Tolerance | -2 | 2 | % | approximately | 1 | ||
| Power Dissipation | Ptot | 300 | mW | Ta = 25 °C | 1 | ||
| Operating and Storage Temperature Range | Tj, Tstg | -55 | 150 | °C | Ta = 25 °C | 1 | |
| Forward Voltage | VF | 0.9 | V | IF = 10 mA | 1 | ||
| Thermal resistance junction to ambient | RθJA | 417 | °C/W | P.C.B. mounted with 2.0" X 2.0" (5 X 5 cm) copper pads | 1 |
CAD (KiCad official)
- Symbol:
MM3Z75B - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
mm3z75b-etched.step/mm3z75b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mm3z75b.step/mm3z75b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shandong Jingdao Microelectronics datasheet (3 pp, sha256
16cd80feef7a773b, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).