component
MM1Z3V3B
Public Made by Adomby adom
YONGYUTAI Zener Diodes, SOD-123. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownMM1Z3V3B
YONGYUTAI · Zener Diodes · SOD-123
MM1Z3V3B from YONGYUTAI, 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YONGYUTAI |
| 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 | 3.1 | 3.3 | 3.5 | V | Test current Izt = 5 mA | 1 |
| Temperature coefficient | IZTC | -3.5 | 0 | mV/℃ | Test current IZTC = 5 mA | 1 | |
| Maximum Zener impedance | Zzt | 95 | Ω | @ Izt = 5 mA | 1 | ||
| Maximum Zener knee impedance | Zzk | 600 | Ω | @ Izk = 1.0 mA | 1 | ||
| Maximum reverse current | IR | 5 | µA | VR = 1.0 V | 1 | ||
| Power dissipation | Pd | 500 | mW | Ratings at 25℃ ambient temperature | 1 | ||
| Forward voltage | Vf | 0.9 | V | IF = 10 mA | 1 | ||
| Storage temperature range | Ts | -65 | 150 | ℃ | 1 | ||
| Thermal resistance junction to ambient air | RthA | 400 | K/W | Device mounted on ceramic PCB 7.6mm x 9.4mm x 0.87mm with pad areas 25mm² | 1 |
CAD (KiCad official)
- Symbol:
MM1Z3V3B - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
mm1z3v3b-etched.step/mm1z3v3b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mm1z3v3b.step/mm1z3v3b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: YONGYUTAI datasheet (5 pp, sha256
2f2dda4cfaf8be30, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).