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SZESD9902MLT1G
Public Made by Adomby adom
onsemi ESD And Surge Protection (TVS/ESD), SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SZESD9902MLT1G
onsemi · ESD And Surge Protection (TVS/ESD) · SOT-23-3
SZESD9902MLT1G from onsemi, in a SOT-23-3. 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 per Style 27 pin assignment; the datasheet does not state which pins are the I/O and GND pins (VRWM 25 V, I/O pin to GND). |
| 2 | CATHODE | passive | Cathode per Style 27 pin assignment; the datasheet does not state which pins are the I/O and GND pins (VRWM 25 V, I/O pin to GND). |
| 3 | CATHODE | passive | Cathode per Style 27 pin assignment; the datasheet does not state which pins are the I/O and GND pins (VRWM 25 V, I/O pin to GND). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23-3 |
| Category | Circuit Protection |
| Pins | 3 |
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 Leakage Current | IR | 1 | 200 | nA | VRWM = 25 V | 2 | |
| Reverse Working Voltage | VRWM | 25 | V | I/O Pin to GND | 2 | ||
| Reverse Holding Voltage | VHOLD | 25 | V | I/O Pin to GND | 2 | ||
| ESD Trigger Voltage | Vtrigger | 100 | V | 2 | |||
| Reverse Peak Pulse Current | IPP | 2.2 | A | per IEC61000-4-5 (8x20 µs) | 2 | ||
| Channel Capacitance | CJio-gnd | 2.3 | 2.6 | pF | VR = 0 V, f = 1 MHz | 2 | |
| Dynamic Resistance | RDYN | 0.4 | Ω | I/O to GND, GND to I/O | 2 | ||
| Operating Junction Temperature Range | TJ | -55 | 150 | °C | TJ = 25°C unless otherwise noted | 1 | |
| Storage Temperature Range | Tstg | -55 | 150 | °C | 1 | ||
| Lead Solder Temperature - Maximum | TL | 260 | °C | 10 Seconds | 1 | ||
| ESD (IEC 61000-4-2 Contact/Air, ISO 10605) | ESD | -30 | 30 | kV | minimum number of discharges > 1000 | 1 | |
| Maximum Peak Pulse Current | Ipp | 2.2 | A | 8/20 µs | 1 |
CAD (KiCad official)
- Symbol:
SZESD9902MLT1G - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
szesd9902mlt1g-etched.step/szesd9902mlt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);szesd9902mlt1g.step/szesd9902mlt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (4 pp, sha256
9bb60381e12c123a, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).
# SZESD9902MLT1G
**onsemi** · ESD And Surge Protection (TVS/ESD) · SOT-23-3
SZESD9902MLT1G from onsemi, in a SOT-23-3. 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 per Style 27 pin assignment; the datasheet does not state which pins are the I/O and GND pins (VRWM 25 V, I/O pin to GND). |
| 2 | CATHODE | passive | Cathode per Style 27 pin assignment; the datasheet does not state which pins are the I/O and GND pins (VRWM 25 V, I/O pin to GND). |
| 3 | CATHODE | passive | Cathode per Style 27 pin assignment; the datasheet does not state which pins are the I/O and GND pins (VRWM 25 V, I/O pin to GND). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23-3 |
| Category | Circuit Protection |
| Pins | 3 |
## 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 Leakage Current | IR | | 1 | 200 | nA | VRWM = 25 V | 2 |
| Reverse Working Voltage | VRWM | | | 25 | V | I/O Pin to GND | 2 |
| Reverse Holding Voltage | VHOLD | 25 | | | V | I/O Pin to GND | 2 |
| ESD Trigger Voltage | Vtrigger | 100 | | | V | | 2 |
| Reverse Peak Pulse Current | IPP | | | 2.2 | A | per IEC61000-4-5 (8x20 µs) | 2 |
| Channel Capacitance | CJio-gnd | | 2.3 | 2.6 | pF | VR = 0 V, f = 1 MHz | 2 |
| Dynamic Resistance | RDYN | | 0.4 | | Ω | I/O to GND, GND to I/O | 2 |
| Operating Junction Temperature Range | TJ | -55 | | 150 | °C | TJ = 25°C unless otherwise noted | 1 |
| Storage Temperature Range | Tstg | -55 | | 150 | °C | | 1 |
| Lead Solder Temperature - Maximum | TL | | | 260 | °C | 10 Seconds | 1 |
| ESD (IEC 61000-4-2 Contact/Air, ISO 10605) | ESD | -30 | | 30 | kV | minimum number of discharges > 1000 | 1 |
| Maximum Peak Pulse Current | Ipp | | | 2.2 | A | 8/20 µs | 1 |
## CAD (KiCad official)
- Symbol: `SZESD9902MLT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `szesd9902mlt1g-etched.step` / `szesd9902mlt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `szesd9902mlt1g.step` / `szesd9902mlt1g.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/szesd9902mlt1-d.pdf) (4 pp, sha256 `9bb60381e12c123a`, retrieved 2026-10-23, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/szesd9902mlt1g-datasheet.pdf)