component
SA20A
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EIC Semicon TVS, DO-41. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SA20A
EIC Semicon · TVS · DO-41
SA20A from EIC Semicon, in a DO-41. 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 end of the unidirectional TVS, marked by the color band; connected to the positive side, with VRWM 20.0 V, VBR 22.2-24.5 V at 1.0 mA, and max clamping voltage 32.4 V at 15.4 A for SA20A. |
| 2 | A | passive | Anode end of the unidirectional TVS (no band); for SA20A it conducts in reverse breakdown above VBR min 22.2 V, with 500 W peak pulse power (1 ms) capability. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | EIC Semicon |
| Package | DO-41 |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 22.2 | 24.5 | V | @ It = 1.0 mA | 2 | |
| Test Current | It | 1 | mA | VBR measured after It applied for 300 µs | 2 | ||
| Working Peak Reverse Voltage | VRWM | 20 | V | 2 | |||
| Maximum Reverse Leakage Current | IR | 1 | µA | @ VRWM | 2 | ||
| Maximum Reverse Surge Current | IRSM | 15.4 | A | 2 | |||
| Maximum Clamping Voltage | VRSM | 32.4 | V | @ IRSM | 2 | ||
| Temperature Variation of VBR | 23 | mV/°C | 2 | ||||
| Peak Power Dissipation | PPK | 500 | W | Ta = 25 °C, Tp=1ms (Note 1) | 1 | ||
| Steady State Power Dissipation | PD | 3 | W | TL = 75 °C, lead lengths 0.375" (9.5mm) (Note 2) | 1 | ||
| Operating and Storage Temperature Range | TJ, TSTG | -65 | 175 | °C | 1 |
CAD (KiCad official)
- Symbol:
SA20A - Footprint:
Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal - 3D model: DO-41 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: EIC Semicon datasheet (4 pp, sha256
9697f9ad0c78b23a, retrieved 2026-10-22, tier: lcsc) - 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).
# SA20A
**EIC Semicon** · TVS · DO-41
SA20A from EIC Semicon, in a DO-41. 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 end of the unidirectional TVS, marked by the color band; connected to the positive side, with VRWM 20.0 V, VBR 22.2-24.5 V at 1.0 mA, and max clamping voltage 32.4 V at 15.4 A for SA20A. |
| 2 | A | passive | Anode end of the unidirectional TVS (no band); for SA20A it conducts in reverse breakdown above VBR min 22.2 V, with 500 W peak pulse power (1 ms) capability. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | EIC Semicon |
| Package | DO-41 |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 22.2 | | 24.5 | V | @ It = 1.0 mA | 2 |
| Test Current | It | | 1 | | mA | VBR measured after It applied for 300 µs | 2 |
| Working Peak Reverse Voltage | VRWM | | 20 | | V | | 2 |
| Maximum Reverse Leakage Current | IR | | | 1 | µA | @ VRWM | 2 |
| Maximum Reverse Surge Current | IRSM | | | 15.4 | A | | 2 |
| Maximum Clamping Voltage | VRSM | | | 32.4 | V | @ IRSM | 2 |
| Temperature Variation of VBR | | | | 23 | mV/°C | | 2 |
| Peak Power Dissipation | PPK | 500 | | | W | Ta = 25 °C, Tp=1ms (Note 1) | 1 |
| Steady State Power Dissipation | PD | | | 3 | W | TL = 75 °C, lead lengths 0.375" (9.5mm) (Note 2) | 1 |
| Operating and Storage Temperature Range | TJ, TSTG | -65 | | 175 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `SA20A`
- Footprint: `Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal`
- 3D model: DO-41 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [EIC Semicon datasheet](docs/sa20a-datasheet.pdf) (4 pp, sha256 `9697f9ad0c78b23a`, retrieved 2026-10-22, tier: lcsc)
- **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/sa20a-datasheet.pdf)