component
MMSZ5242B-TP
Public Made by Adomby adom
MCC Micro Commercial Components 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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMMSZ5242B-TP
MCC Micro Commercial Components · Zener Diodes · SOD-123
MMSZ5242B-TP from MCC Micro Commercial Components, 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 | MCC Micro Commercial Components |
| 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 tolerance (B suffix) | VZ | -5 | 5 | % | B suffix, standard tolerance (Note 3) | 2 | |
| Maximum Zener impedance | ZZT | 30 | Ω | @ IZT = 20 mA | 2 | ||
| Maximum Zener impedance | ZZK | 600 | Ω | @ IZK = 0.25 mA | 2 | ||
| Maximum reverse leakage current | IR | 1 | µA | VR = 9.1 V | 2 | ||
| Maximum forward voltage | VF | 0.9 | V | IF = 10 mA | 1 | ||
| Power dissipation | PD | 500 | mW | Note 2: mounted on 5.0 mm2 land areas | 1 | ||
| Operating junction temperature range | TJ | -65 | 150 | °C | 1 | ||
| Storage temperature range | TSTG | -65 | 150 | °C | 1 | ||
| Thermal resistance, junction to ambient | RθJA | 340 | °C/W | Note 1: FR-4 board with minimum recommended solder pad layout | 1 | ||
| Nominal Zener voltage | VZ | 12 | V | @ IZT = 20 mA | 2 | ||
| Zener voltage temperature coefficient | 0.077 | %/°C | 2 |
CAD (KiCad official)
- Symbol:
MMSZ5242B-TP - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
mmsz5242b-tp-etched.step/mmsz5242b-tp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmsz5242b-tp.step/mmsz5242b-tp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MCC Micro Commercial Components datasheet (5 pp, sha256
a43341c80db44f70, retrieved 2026-10-18, 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).