component
SF-1206S125-2
Public Made by Adomby adom
BOURNS Disposable Fuses, 1206. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSF-1206S125-2
BOURNS · Disposable Fuses · 1206
SF-1206S125-2 from BOURNS, in a 1206. 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 | BOURNS |
| Package | 1206 |
| 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 |
|---|---|---|---|---|---|---|---|
| Clearing time at 250 % of rated current | 5 | s | Clearing time at 25 °C ambient, 250 % of rated current (series characteristic) | 1 | |||
| Clearing time at 100 % of rated current | 4 | h | Clearing time at 25 °C ambient, 100 % of rated current (series characteristic) | 1 | |||
| Resistance tolerance | -25 | 25 | % | Resistance measured with ≤10 % rated current at 25 °C ambient | 1 | ||
| Resistance | 0.09 | Ω | Measured with ≤10 % rated current at 25 °C ambient | 1 | |||
| Rated current | 1.25 | A | 1 | ||||
| Rated voltage | 63 | VDC | Rated voltage for SF-1206S125-2 | 1 | |||
| Interrupting rating | 50 | A | @ 63 VDC | 1 | |||
| Operating temperature | -20 | 105 | °C | Operating temperature range | 1 | ||
| Storage temperature | 5 | 35 | °C | Storage conditions | 1 | ||
| Fusing time | 5 | s | 200 % of rated current | 4 | |||
| Temperature rise | 75 | °C | 100 % of rated current, surface temperature | 4 | |||
| Resistance change after resistance to solder heat | ΔR | -20 | 20 | % | 260 °C ±5 °C, 10 seconds ±1 second | 4 | |
| Resistance change after resistance to dry heat | ΔR | -20 | 20 | % | 105 °C ±5 °C, 1000 hours | 4 | |
| Resistance change after thermal shock | ΔR | 10 | % | -20 °C / +25 °C / +125 °C / +25 °C, 10 cycles | 4 |
CAD (KiCad official)
- Symbol:
SF-1206S125-2 - Footprint:
Fuse:Fuse_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
sf-1206s125-2-etched.step/sf-1206s125-2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sf-1206s125-2.step/sf-1206s125-2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BOURNS datasheet (5 pp, sha256
703b1f579a261b6b, retrieved 2026-10-19, tier: lcsc) - 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).