component
ESD9B5.0ST5G
Public Made by Adomby adom
onsemi ESD Protection Devices, SOD-923. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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ESD9B5.0ST5G
onsemi · ESD Protection Devices · SOD-923
ESD9B5.0ST5G from onsemi, in a SOD-923. 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOD-923 |
| Category | Circuit Protection |
| 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 leakage current | IR | 100 | nA | @ VRWM | 2 | ||
| Breakdown voltage | VBR | 5.8 | 7.8 | V | @ IT = 1.0 mA; pulse test at TA = 25°C (Note 2) | 2 | |
| Clamping voltage | VC | 12.5 | V | IPP = 1 A; max per 8 x 20 µs surge (Note 4) | 2 | ||
| Clamping voltage | VC | 15 | V | IPP = 2 A; max per 8 x 20 µs surge (Note 4) | 2 | ||
| IEC 61000-4-2 (ESD) contact | -18 | 18 | kV | Contact | 1 | ||
| IEC 61000-4-2 (ESD) air | -18 | 18 | kV | Air | 1 | ||
| IEC 61000-4-4 (EFT) | 40 | A | IEC 61000-4-4 (EFT) | 1 | |||
| Total power dissipation on FR-5 board | PD | 300 | mW | TA = 25°C on FR-5 board (Note 1) | 1 | ||
| Junction and storage temperature range | TJ, Tstg | -55 | 150 | °C | 1 | ||
| Lead solder temperature (maximum) | TL | 260 | °C | 10 second duration | 1 | ||
| Thermal resistance, junction-to-ambient | RθJA | 400 | °C/W | 1 | |||
| Capacitance | C | 15 | pF | VR = 0 V and f = 1.0 MHz | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | LEAD FINISH: 100% Matte Sn (Tin) MOUNTING POSITION: Any | 1 |
CAD (KiCad official)
- Symbol:
ESD9B5.0ST5G - Footprint:
Diode_SMD:D_SOD-923 - 3D model: SOD-923 (KiCad packages3D, STEP)
- 3D model files:
esd9b5-0st5g-etched.step/esd9b5-0st5g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esd9b5-0st5g.step/esd9b5-0st5g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (4 pp, sha256
aba6554d0f049467, retrieved 2026-10-21, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).
# ESD9B5.0ST5G
**onsemi** · ESD Protection Devices · SOD-923
ESD9B5.0ST5G from onsemi, in a SOD-923. 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOD-923 |
| Category | Circuit Protection |
| 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 leakage current | IR | | | 100 | nA | @ VRWM | 2 |
| Breakdown voltage | VBR | 5.8 | | 7.8 | V | @ IT = 1.0 mA; pulse test at TA = 25°C (Note 2) | 2 |
| Clamping voltage | VC | | | 12.5 | V | IPP = 1 A; max per 8 x 20 µs surge (Note 4) | 2 |
| Clamping voltage | VC | | | 15 | V | IPP = 2 A; max per 8 x 20 µs surge (Note 4) | 2 |
| IEC 61000-4-2 (ESD) contact | | -18 | | 18 | kV | Contact | 1 |
| IEC 61000-4-2 (ESD) air | | -18 | | 18 | kV | Air | 1 |
| IEC 61000-4-4 (EFT) | | | | 40 | A | IEC 61000-4-4 (EFT) | 1 |
| Total power dissipation on FR-5 board | PD | | | 300 | mW | TA = 25°C on FR-5 board (Note 1) | 1 |
| Junction and storage temperature range | TJ, Tstg | -55 | | 150 | °C | | 1 |
| Lead solder temperature (maximum) | TL | | | 260 | °C | 10 second duration | 1 |
| Thermal resistance, junction-to-ambient | RθJA | | | 400 | °C/W | | 1 |
| Capacitance | C | | 15 | | pF | VR = 0 V and f = 1.0 MHz | 2 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | | tin | LEAD FINISH: 100% Matte Sn (Tin) MOUNTING POSITION: Any | 1 |
## CAD (KiCad official)
- Symbol: `ESD9B5.0ST5G`
- Footprint: `Diode_SMD:D_SOD-923`
- 3D model: SOD-923 (KiCad packages3D, STEP)
- 3D model files: `esd9b5-0st5g-etched.step` / `esd9b5-0st5g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd9b5-0st5g.step` / `esd9b5-0st5g.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/esd9b5.0st5-d.pdf) (4 pp, sha256 `aba6554d0f049467`, retrieved 2026-10-21, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/esd9b5-0st5g-datasheet.pdf)