component
S0603-S-3.5A
Public Made by Adomby adom
SART Nanjing Sart Tech Disposable Fuses, 0603. 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
markdownS0603-S-3.5A
SART Nanjing Sart Tech · Disposable Fuses · 0603
S0603-S-3.5A from SART Nanjing Sart Tech, in a 0603. 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 fuse termination (silver over-plated with tin) on the 1.6mm x 0.8mm body; non-polarized, rated 3.5A, 32V DC, 50A/32V DC interrupting rating, max cold DCR 0.022 ohm. |
| 2 | 2 | passive | Second fuse termination (silver over-plated with tin), interchangeable with the other end; non-polarized, rated 3.5A, 32V DC, slow blow. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SART Nanjing Sart Tech |
| Package | 0603 |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum cold DCR | 0.022 | Ω | S0603-S-3.5A (marking R), cold resistance | 1 | |||
| Opening time at 1000% of rated current (3.5A-6A) | 0.6 | ms | 1000% of current rating; 3.5A-6A range | 3 | |||
| Opening time at 200% of rated current | 60 | s | 200% of current rating; 1A-8A range | 3 | |||
| Opening time at 100% of rated current | 4 | h | 100% of current rating; 1A-8A range | 3 | |||
| Temperature rise | ΔT | 75 | ℃ | 100% In, per UL248-14 | 4 | ||
| Voltage drop deviation between mean values | 15 | % | 100% In, temperature in fuse stabilized, per IEC 60127-1 | 4 | |||
| Resistance change after endurance test | ΔR | 10 | % | 100% In, 1h on/15min off, 100 cycles; followed by 1h at 125% In | 4 | ||
| Resistance change after resistance to soldering | ΔR | 10 | % | 260℃±5℃, 10sec±0.5sec | 4 | ||
| Operating temperature | -50 | 125 | ℃ | 1 | |||
| Storage ambient temperature | 5 | 30 | ℃ | Storage | 6 | ||
| Storage relative humidity | 25 | 60 | % | Storage | 6 | ||
| Infrared reflow peak temperature | 260 | ℃ | Infrared reflow, Pb-free profile | 5 | |||
| Infrared reflow time | 5 | s | Infrared reflow, temperature 260℃ | 5 | |||
| Wave soldering reservoir temperature | 260 | ℃ | Wave soldering | 5 | |||
| Wave soldering time in reservoir | 10 | s | Wave soldering, reservoir temperature 260℃ | 5 | |||
| Hand soldering temperature | 350 | ℃ | Hand soldering | 5 | |||
| Hand soldering time | 5 | s | Hand soldering, temperature 350℃ | 5 | |||
| Rated current | In | 3.5 | A | S0603-S-3.5A | 1 | ||
| Rated voltage | 32 | V DC | DC | 1 | |||
| Interrupting rating | 50 | A | 32V DC; 1A-3.5A per interrupting ability test | 4 | |||
| Typical I2T | I2T | 0.9758 | A2S | Melting I2T at 10 times rated current | 1 |
CAD (KiCad official)
- Symbol:
S0603-S-3.5A - Footprint:
Fuse:Fuse_0603_1608Metric - 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files:
s0603-s-3-5a-etched.step/s0603-s-3-5a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);s0603-s-3-5a.step/s0603-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
d269772fdc88bb7e, retrieved 2026-10-16, 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).