component
SM30T23AY
Public Made by Adomby adom
STMicroelectronics TVS, SMC(DO-214AB). 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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SM30T23AY
STMicroelectronics · TVS · SMC(DO-214AB)
SM30T23AY from STMicroelectronics, in a SMC(DO-214AB). 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 | 1 | passive | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SMC(DO-214AB) |
| Category | TVS/Fuse/Board Level 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 (25 °C) | IRM | 0.2 | µA | at VRM = 20 V, 25 °C | 3 | ||
| Reverse leakage current (85 °C) | IRM | 1 | µA | at VRM = 20 V, 85 °C | 3 | ||
| Breakdown voltage | VBR | 22.2 | 23.4 | 24.6 | V | at IBR = 1 mA, Tamb = 25 °C | 3 |
| Clamping voltage, 10/1000 µs | VCL | 32.4 | V | 10/1000 µs, IPP = 93 A | 3 | ||
| Peak pulse current, 10/1000 µs | IPP | 93 | A | 10/1000 µs | 3 | ||
| Dynamic resistance, 10/1000 µs | RD | 83.9 | mΩ | 10/1000 µs | 3 | ||
| Clamping voltage, 8/20 µs | VCL | 42.8 | V | 8/20 µs, IPP = 747 A | 3 | ||
| Peak pulse current, 8/20 µs | IPP | 747 | A | 8/20 µs | 3 | ||
| Dynamic resistance, 8/20 µs | RD | 24.4 | mΩ | 8/20 µs | 3 | ||
| Peak pulse voltage, contact discharge | VPP | -30 | 30 | kV | ISO10605 (C = 330 pF, R = 330 Ω), contact discharge | 2 | |
| Peak pulse voltage, air discharge | VPP | -30 | 30 | kV | ISO10605 (C = 330 pF, R = 330 Ω), air discharge | 2 | |
| Peak pulse power dissipation | PPP | 3000 | W | Tj initial = Tamb | 2 | ||
| Storage temperature range | Tstg | -65 | 175 | °C | 2 | ||
| Operating junction temperature range | Tj | -55 | 175 | °C | 2 | ||
| Maximum lead temperature for soldering | TL | 260 | °C | during 10 s | 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 finishing: matte tin plating Complies with the following standards | 1 |
CAD (KiCad official)
- Symbol:
SM30T23AY - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (16 pp, sha256
f6d47dc33b5be94c, retrieved 2026-10-30, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal 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).
# SM30T23AY
**STMicroelectronics** · TVS · SMC(DO-214AB)
SM30T23AY from STMicroelectronics, in a SMC(DO-214AB). 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 | 1 | passive | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SMC(DO-214AB) |
| Category | TVS/Fuse/Board Level 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 (25 °C) | IRM | | | 0.2 | µA | at VRM = 20 V, 25 °C | 3 |
| Reverse leakage current (85 °C) | IRM | | | 1 | µA | at VRM = 20 V, 85 °C | 3 |
| Breakdown voltage | VBR | 22.2 | 23.4 | 24.6 | V | at IBR = 1 mA, Tamb = 25 °C | 3 |
| Clamping voltage, 10/1000 µs | VCL | | | 32.4 | V | 10/1000 µs, IPP = 93 A | 3 |
| Peak pulse current, 10/1000 µs | IPP | | | 93 | A | 10/1000 µs | 3 |
| Dynamic resistance, 10/1000 µs | RD | | | 83.9 | mΩ | 10/1000 µs | 3 |
| Clamping voltage, 8/20 µs | VCL | | | 42.8 | V | 8/20 µs, IPP = 747 A | 3 |
| Peak pulse current, 8/20 µs | IPP | | | 747 | A | 8/20 µs | 3 |
| Dynamic resistance, 8/20 µs | RD | | | 24.4 | mΩ | 8/20 µs | 3 |
| Peak pulse voltage, contact discharge | VPP | -30 | | 30 | kV | ISO10605 (C = 330 pF, R = 330 Ω), contact discharge | 2 |
| Peak pulse voltage, air discharge | VPP | -30 | | 30 | kV | ISO10605 (C = 330 pF, R = 330 Ω), air discharge | 2 |
| Peak pulse power dissipation | PPP | | | 3000 | W | Tj initial = Tamb | 2 |
| Storage temperature range | Tstg | -65 | | 175 | °C | | 2 |
| Operating junction temperature range | Tj | -55 | | 175 | °C | | 2 |
| Maximum lead temperature for soldering | TL | | | 260 | °C | during 10 s | 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 finishing: matte tin plating Complies with the following standards | 1 |
## CAD (KiCad official)
- Symbol: `SM30T23AY`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/sm30t23ay.pdf) (16 pp, sha256 `f6d47dc33b5be94c`, retrieved 2026-10-30, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal 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/sm30t23ay-datasheet.pdf)