component
MMSZ4709T1G
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
markdownMMSZ4709T1G
onsemi · Zener Diodes · SOD-123
MMSZ4709T1G 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 is the terminal marked by the polarity band on the SOD-123 package (Style 1: pin 1 = cathode). |
| 2 | Anode | passive | Anode is the opposite terminal from the cathode (Style 1: pin 2 = anode); the datasheet states no pin-specific electrical limits. |
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 |
|---|---|---|---|---|---|---|---|
| Reverse Zener Voltage (nominal 24 V, min 22.80, max 25.20 for MMSZ4709T1G) | VZ | 22.8 | 24 | 25.2 | V | @ IZT (column value 50, printed 'A'); Note 3: nominal measured at TL = 30°C ±1°C | 3 |
| Reverse Leakage Current | IR | 0.01 | A | @ VR = 18.2 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) FR-5 = 3.5 X 1.5 inches, minimum recommended footprint | 1 | ||
| Power Derating above 75°C | 6.7 | mW/°C | Derated above TL = 75°C | 1 | |||
| Thermal Resistance, Junction-to-Ambient | RJA | 340 | °C/W | (Note 2) thermal resistance measured via infrared scan method | 1 | ||
| Thermal Resistance, Junction-to-Lead | RJL | 150 | °C/W | (Note 2) thermal resistance measured via infrared scan method | 1 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
MMSZ4709T1G - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
mmsz4709t1g-etched.step/mmsz4709t1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmsz4709t1g.step/mmsz4709t1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (7 pp, sha256
9af21e332095319e, 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).