component
SF-1206S500-2
Public Made by Adomby adom
BOURNS Disposable Fuses, 1206. Pinout cross-checked by two models against the datasheet, 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-1206S500-2
BOURNS · Disposable Fuses · 1206
SF-1206S500-2 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 | Fuse terminal on one end of the 3216 (EIA 1206) chip; the 5.00 A slow-blow element is non-polarized, rated 32 VDC with 50 A @ 32 VDC interrupting rating, and typical resistance 0.013 Ω. |
| 2 | 2 | passive | Fuse terminal on the opposite end of the 3216 (EIA 1206) chip; interchangeable with the other terminal, with the 5.00 A element clearing within 5 seconds at 250 % of rated current. |
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 |
|---|---|---|---|---|---|---|---|
| Resistance tolerance | -25 | 25 | % | Printed tolerance ± 25 % on resistance | 1 | ||
| Clearing time at 250 % of rated current | 5 | s | At 25 °C, 250 % of current rating | 1 | |||
| Clearing time at 100 % of rated current | 4 | hours | At 25 °C, 100 % of current rating (Min. column) | 1 | |||
| Operating temperature | -20 | 105 | °C | Operating temperature | 1 | ||
| Storage temperature | 5 | 35 | °C | Storage conditions | 1 | ||
| Shelf life | 2 | years | From manufacturing date | 1 | |||
| Fusing time | 5 | s | 200 % of rated current (reliability test 2) | 4 | |||
| Temperature rise | 75 | °C | 100 % of rated current, surface temperature (reliability test 7) | 4 | |||
| Resistance change after resistance to solder heat | -20 | 20 | % | 260 °C ±5 °C, 10 seconds ±1 second | 4 | ||
| Resistance change after resistance to dry heat | -20 | 20 | % | 105 °C ±5 °C, 1000 hours | 4 | ||
| Residual resistance after fusing | 10 | k ohms | DC resistance measured after fusing | 4 | |||
| Resistance change after thermal shock | ΔR | 10 | % | -20 °C / +25 °C / +125 °C / +25 °C, 10 cycles | 4 | ||
| Resistance | R | 0.013 | Ω | Measured with ≤10 % rated current at 25 °C ambient | 1 | ||
| Rated current | 5 | A | Rated current of SF-1206S500-2 | 1 | |||
| Rated voltage | 32 | VDC | 32 VDC rated-voltage column for the 5.00 A model | 1 | |||
| Interrupting rating | 50 | A | @ 32 VDC | 1 | |||
| Typical I2t | I2t | 2.533 | A2s | Melting I2t calculated at 10 times rated current | 1 |
CAD (KiCad official)
- Symbol:
SF-1206S500-2 - Footprint:
Fuse:Fuse_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
sf-1206s500-2-etched.step/sf-1206s500-2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sf-1206s500-2.step/sf-1206s500-2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BOURNS datasheet (5 pp, sha256
703b1f579a261b6b, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).