component
MMSZ5222BT1G
Public Made by Adomby adom
onsemi Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, 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
markdownMMSZ5222BT1G
onsemi · Zener Diodes · SOD-123
MMSZ5222BT1G from onsemi, 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 | Cathode | passive | Cathode terminal of the Zener diode, marked by the polarity band on the package; the datasheet gives no electrical limits for this pin. |
| 2 | Anode | passive | Anode terminal of the Zener diode, opposite the cathode; the datasheet gives no electrical limits for this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| 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 | 2.38 | 2.5 | 2.63 | V | @ IZT = 20 mA, TA = 25°C | 3 |
| Maximum Zener impedance | ZZT | 30 | Ω | @ IZT = 20 mA | 3 | ||
| Maximum Zener impedance | ZZK | 1250 | Ω | @ IZK = 0.25 mA | 3 | ||
| Reverse leakage current | IR | 100 | µA | @ VR = 1 V | 3 | ||
| Forward voltage | VF | 0.9 | V | @ IF = 10 mA | 3 | ||
| Total power dissipation on FR-5 board | PD | 500 | mW | TL = 75°C (Note 1) | 1 | ||
| Power dissipation derating | PD | 6.7 | mW/°C | Derated above TL = 75°C | 1 | ||
| Thermal resistance, junction-to-ambient | RJA | 340 | °C/W | Note 2 | 1 | ||
| Thermal resistance, junction-to-lead | RJL | 150 | °C/W | Note 2 | 1 | ||
| Junction and storage temperature range | TJ, Tstg | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
MMSZ5222BT1G - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
mmsz5222bt1g-etched.step/mmsz5222bt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmsz5222bt1g.step/mmsz5222bt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (7 pp, sha256
1c18834cb6932450, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).