component
MMSZ5241C
Public Made by Adomby adom
amsem Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, 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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Contents
README
markdownMMSZ5241C
amsem · Zener Diodes · SOD-123
MMSZ5241C from amsem, 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 end marked with the cathode band; MMSZ5241C has Vz 11 V nominal (10.78 to 11.22 V) at IZT = 20 mA and 350 mW maximum power dissipation. |
| 2 | A | passive | Anode, the end without the cathode band; the diode symbol on page 1 shows it opposite the cathode, and the Zener conducts in reverse from cathode to anode at Vz. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | amsem |
| 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 (Nom 11 V, Min 10.78 V, Max 11.22 V) | Vz | 10.78 | 11 | 11.22 | V | @IZT = 20 mA; *1 pulse width = 10 ms | 2 |
| Power Dissipation | PD | 350 | mW | Ta = 25 ℃ | 1 | ||
| Junction Temperature | TJ | 150 | ℃ | Ta = 25 ℃ | 1 | ||
| Storage Temperature | TSTG | -55 | 125 | ℃ | Ta = 25 ℃ | 1 |
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 | ◇ Matte Tin (Sn) Lead finish ◇ Cathode Band / Device marking | 1 |
CAD (KiCad official)
- Symbol:
MMSZ5241C - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
mmsz5241c-etched.step/mmsz5241c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmsz5241c.step/mmsz5241c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: amsem datasheet (3 pp, sha256
4a7b1ef1bde5b266, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).