# SL1210650

**TECHFUSE** · Resettable Fuses · 1210

SL1210650 from TECHFUSE, in a 1210. 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 | First terminal of the non-polarized SL1210650 PPTC; rated 6.5 A hold, 13.0 A trip, 13 V... see review note |
| 2 | 2 | passive | Second terminal of the non-polarized SL1210650 PPTC, interchangeable with the other terminal; 6.0 V max voltage, 50 A max fault current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECHFUSE |
| Package | 1210 |
| 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 |
|---|---|---|---|---|---|---|---|
| Hold current (max current without trip, 25°C still air) | IH |  |  | 6.5 | A | 25°C still air; reflow 260°C 20 s | 2 |
| Trip current (min current that always trips) | IT | 13 |  |  | A | 25°C still air; reflow 260°C 20 s | 2 |
| Maximum continuous voltage | Vmax |  |  | 6 | V | At rated current | 2 |
| Maximum fault current | Imax |  |  | 50 | A | At rated voltage | 2 |
| Maximum time to trip | Ttrip |  |  | 5 | s | At 20.0 A assigned current | 2 |
| Minimum resistance, initial (un-soldered) | Rmin | 0.0005 |  |  | Ω | Initial un-soldered state | 2 |
| Maximum resistance, initial (un-soldered) | Rmax |  |  | 0.004 | Ω | Initial un-soldered state | 2 |
| Maximum resistance at 25°C after reflow | R1max |  |  | 0.008 | Ω | 25°C, measured one hour after reflow 260°C 20 s | 2 |
| Typical power dissipation (tripped) | Pdtyp |  | 1.5 |  | W | Tripped state, still air | 2 |
| Hold current at ambient temperature |  |  | 9.8 |  | A | Ambient -40℃ (thermal derating table) | 3 |
| Hold current at ambient temperature |  |  | 8.6 |  | A | Ambient -20℃ (thermal derating table) | 3 |
| Hold current at ambient temperature |  |  | 7.5 |  | A | Ambient 0℃ (thermal derating table) | 3 |
| Hold current at ambient temperature |  |  | 6.5 |  | A | Ambient 25℃ (thermal derating table) | 3 |
| Hold current at ambient temperature |  |  | 5.6 |  | A | Ambient 40℃ (thermal derating table) | 3 |
| Hold current at ambient temperature |  |  | 5 |  | A | Ambient 50℃ (thermal derating table) | 3 |
| Hold current at ambient temperature |  |  | 4.6 |  | A | Ambient 60℃ (thermal derating table) | 3 |
| Hold current at ambient temperature |  |  | 4 |  | A | Ambient 70℃ (thermal derating table) | 3 |

## CAD (KiCad official)

- Symbol: `SL1210650`
- Footprint: `Fuse:Fuse_1210_3225Metric`
- 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files: `sl1210650-etched.step` / `sl1210650-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sl1210650.step` / `sl1210650.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [TECHFUSE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588917540978905088) (5 pp, sha256 `8ae482acc55ca041`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/sl1210650-datasheet.pdf)