component
SA51A
Public Made by Adomby adom
Brightking Elec (TAIWAN) TVS, DO-15. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownSA51A
Brightking Elec (TAIWAN) · TVS · DO-15
SA51A from Brightking Elec (TAIWAN), in a DO-15. 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, marked by the color band on the unidirectional SA51A (VRWM 51.0 V, VBR 56.70~62.70 V at 1 mA, VC 82.4 V at 6.2 A IPP). |
| 2 | A | passive | Anode axial lead of the unidirectional SA51A; the datasheet gives no pin numbers, only that the color band denotes the cathode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Brightking Elec (TAIWAN) |
| Package | DO-15 |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 56.7 | 62.7 | V | @IT=1 mA, TA=25℃ | 3 | |
| Maximum Clamping Voltage | VC | 82.4 | V | @IPP=6.2 A, TA=25℃ | 3 | ||
| Peak Pulse Current | IPP | 6.2 | A | 10/1000μs waveform, TA=25℃ | 3 | ||
| Reverse Leakage | IR | 1 | μA | @VRWM=51.0 V, TA=25℃ | 3 | ||
| Reverse Stand-Off Voltage | VRWM | 51 | V | TA=25℃ | 3 | ||
| Breakdown Test Current | IT | 1 | mA | TA=25℃ | 3 | ||
| Peak pulse power dissipation | PPPM | 500 | W | 10/1000μs waveform | 1 | ||
| Steady state power dissipation | PM(AV) | 3 | W | TA=50℃ | 1 | ||
| Peak forward surge current | IFSM | 70 | A | 8.3ms single half sine-wave superimposed on rated load | 1 | ||
| Operating junction and storage temperature | TJ,TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal resistance junction to lead | RθJL | 20 | ℃/W | 1 | |||
| Thermal resistance junction to ambient | RθJA | 75 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
SA51A - Footprint:
Diode_THT:D_DO-15_P12.70mm_Horizontal - 3D model: DO-15 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Brightking Elec (TAIWAN) datasheet (6 pp, sha256
f0dc01ead7acea2f, 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).