component
MMBZ20VALT1G
Public Made by Adomby adom
onsemi ESD And Surge Protection (TVS/ESD), SOT-23. 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
markdownMMBZ20VALT1G
onsemi · ESD And Surge Protection (TVS/ESD) · SOT-23
MMBZ20VALT1G from onsemi, in a SOT-23. 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 1 | passive | Cathode of the first Zener junction in the dual common-anode device; for a unidirectional configuration it is tied to pin 3 (ANODE) per the datasheet's circuit note (pins 1 and 3 or 2 and 3). |
| 2 | CATHODE 2 | passive | Cathode of the second Zener junction in the dual common-anode device; for a unidirectional configuration it is tied to pin 3 (ANODE) per the datasheet's circuit note (pins 2 and 3 or 1 and 3). |
| 3 | ANODE | passive | Common anode shared by both Zener junctions, which the datasheet says allows either two separate unidirectional configurations or a single bidirectional configuration. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23 |
| Category | Circuit Protection |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
MMBZ20VALT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
mmbz20valt1g-etched.step/mmbz20valt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbz20valt1g.step/mmbz20valt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (9 pp, sha256
4e26688519a3202b, retrieved 2026-10-09, 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).