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S1206-S-3.5A
Public Made by Adomby adom
SART Nanjing Sart Tech 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
markdownS1206-S-3.5A
SART Nanjing Sart Tech · Disposable Fuses · 1206
S1206-S-3.5A from SART Nanjing Sart Tech, 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 | One of two interchangeable end terminations (silver over-plated with tin) of the 3.5A slow-blow fuse, rated 32V DC with 50A/32V DC interrupting rating. |
| 2 | 2 | passive | Second interchangeable end termination of the 3.5A slow-blow fuse, with max cold DCR 0.035 ohm and non-polarized connection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SART Nanjing Sart Tech |
| 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 |
|---|---|---|---|---|---|---|---|
| Max cold DCR | 0.035 | Ω | Measured at ≤10% rated current and 25℃ | 1 | |||
| Interrupting rating | 50 | A | 32V DC, 1A-3.5A; without permanent arcing, ignition and bursting of fuse link | 4 | |||
| Operating temperature | -50 | 125 | ℃ | 1 | |||
| Opening time at 200% of rated current | 60 | sec | 200% of rated current, 1A-7A | 3 | |||
| Opening time at 1000% of rated current | 1 | ms | 1000% of rated current, 1A-7A | 3 | |||
| Non-opening time at 100% of rated current | 4 | hours | 100% of rated current, 1A-7A, no fusing | 3 | |||
| Voltage drop mean value deviation | 15 | % | 100% In, temperature stabilized; IEC 60127-1 | 4 | |||
| Temperature rise | /△T/ | 75 | ℃ | 100%In; UL248-14 | 4 | ||
| Endurance resistance change | /△R/ | 10 | % | 100% In, 1h on, 15min off, 100 cycles; followed by 1h at 125%In | 4 | ||
| Solderability wetting coverage | 95 | % | 240±5℃, 3±0.5 sec; IEC60127-4 | 4 | |||
| Infrared reflow peak temperature | 260 | ℃ | Infrared reflow, 5 sec max | 5 | |||
| Wave soldering reservoir temperature | 260 | ℃ | Wave soldering, reservoir, 10 sec max | 5 | |||
| Storage ambient temperature | 5 | 30 | ℃ | Storage | 6 | ||
| Storage relative humidity | 25 | 60 | % | Storage | 6 | ||
| Rated current | 3.5 | A | 1 | ||||
| Voltage rating | 32 | V DC | 1 | ||||
| Typical I2T | 1.5312 | A2S | Melting I2T at 10 times of rated current | 1 |
CAD (KiCad official)
- Symbol:
S1206-S-3.5A - Footprint:
Fuse:Fuse_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
s1206-s-3-5a-etched.step/s1206-s-3-5a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);s1206-s-3-5a.step/s1206-s-3-5a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SART Nanjing Sart Tech datasheet (6 pp, sha256
dc2abe5530d1455d, retrieved 2026-10-17, 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).