component
C2Q 300
Public Made by Adomby adom
Bel Fuse 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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Contents
README
markdownC2Q 300
Bel Fuse · Disposable Fuses · 0603
C2Q 300 from Bel Fuse, 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 | Fuse terminal 1 (Ag/Ni/Sn termination) of the 300mA, 0603 very fast-acting chip fuse; the fuse is non-polarized and rated 32V AC / 63V DC. |
| 2 | 2 | passive | Fuse terminal 2 (Ag/Ni/Sn termination) of the 300mA, 0603 very fast-acting chip fuse; the fuse is non-polarized and interchangeable with terminal 1, with 35A interrupting rating at 32V AC and 50A at 63V DC. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Bel Fuse |
| 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 |
|---|---|---|---|---|---|---|---|
| Blow time at 200% of rated current, maximum | 5 | sec | Testing current 200% of In | 1 | |||
| Blow time at 300% of rated current, maximum | 0.2 | sec | Testing current 300% of In | 1 | |||
| Blow time at 100% of rated current, minimum | 4 | Hrs | Testing current 100% of In | 1 | |||
| Voltage rating, AC | 32 | V AC | Ampere range 250mA-4A (applies to C2Q 300) | 1 | |||
| Voltage rating, DC | 63 | V DC | Ampere range 250mA-4A (applies to C2Q 300) | 1 | |||
| Interrupting rating (short circuit), AC | 35 | A | @ 32V AC, ampere range 250mA-4A | 1 | |||
| Interrupting rating (short circuit), DC | 50 | A | @ 63V DC, ampere range 250mA-4A | 1 | |||
| Insulation resistance after opening | 10000 | ohms | After opening, MIL-STD-202G Method 302, Test Condition A | 3 | |||
| Operating temperature | -55 | 125 | ℃ | 3 | |||
| IR reflow peak temperature | Tp | 260 | ℃ | Lead-free IR reflow, IPC/JEDEC J-STD-020D | 3 | ||
| Ampere rating | 300 | mA | Catalog C2Q 300 | 2 | |||
| Nominal cold resistance | 0.54 | ohms | Nominal cold resistance | 2 | |||
| Nominal volt-drop | 0.217 | V | @100% In | 2 | |||
| Nominal melting I²T | 3e-05 | A² Sec | @10 In | 2 | |||
| Nominal power dissipation | 0.07 | W | @100% In | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Terminations : Ag / Ni / Sn (100% Lead-free) Element Cover Coating : Lead-free Glass | 1 |
CAD (KiCad official)
- Symbol:
C2Q 300 - Footprint:
Fuse:Fuse_0603_1608Metric - 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files:
c2q-300-etched.step/c2q-300-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);c2q-300.step/c2q-300.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Bel Fuse datasheet (4 pp, sha256
3f6e9730715cb576, 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).