component
AD-MMSZ5232B
Public Made by Adomby adom
Changjing 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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README
markdownAD-MMSZ5232B
Changjing · Zener Diodes · SOD-123
AD-MMSZ5232B from Changjing, 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 band on the package, which goes positive in Zener regulation (VZ 5.32 V min, 5.6 V norm, 5.88 V max at IZT = 20 mA). |
| 2 | A | passive | Anode, the end marked "+" in the package outline, opposite the cathode band, with forward voltage 0.9 V at IF = 10 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 (min) | VZ | 5.32 | V | @ IZT = 20 mA; tested with pulses TP ≤ 1.0 ms | 2 | ||
| Zener voltage (nominal) | VZ | 5.6 | V | @ IZT = 20 mA; tested with pulses TP ≤ 1.0 ms | 2 | ||
| Zener voltage (max) | VZ | 5.88 | V | @ IZT = 20 mA; tested with pulses TP ≤ 1.0 ms | 2 | ||
| Maximum Zener impedance | ZZT | 11 | Ω | @ IZT = 20 mA; f = 1 kHz | 2 | ||
| Maximum Zener impedance (knee) | ZZK | 1600 | Ω | @ IZK = 0.25 mA; f = 1 kHz | 2 | ||
| Maximum reverse current | IR | 5 | µA | @ VR = 3.0 V | 2 | ||
| Forward voltage | VF | 0.9 | V | @ IF = 10 mA; tested with pulses | 1 | ||
| Power dissipation | PD | 350 | mW | 1 | |||
| Thermal resistance, junction to ambient | RθJA | 357 | °C/W | mounted on ceramic PCB 7.6 mm x 9.4 mm x 0.87 mm, pad area 25 mm2 | 1 | ||
| Operating junction and storage temperature range | Tj, Tstg | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
AD-MMSZ5232B - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
ad-mmsz5232b-etched.step/ad-mmsz5232b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad-mmsz5232b.step/ad-mmsz5232b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (7 pp, sha256
04cf450a7cb1567c, 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).