component
0438002.WRGT
Public Made by Adomby adom
Littelfuse 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
markdown0438002.WRGT
Littelfuse · Disposable Fuses · 0603
0438002.WRGT from Littelfuse, 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 end termination (Ag/Ni/Sn) of the non-polarized 2A fast-acting fuse, rated 32V with 50A@32VDC/12VAC interrupting rating and 0.0490 ohm nominal resistance. |
| 2 | 2 | passive | Opposite end termination of the non-polarized 2A fast-acting fuse, interchangeable with the other terminal, with 0.110V nominal voltage drop at rated current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating temperature | -55 | 150 | °C | 1 | |||
| Opening time at 100% of ampere rating | 4 | hours | 2A-6A, opening time at 25ºC | 1 | |||
| Opening time at 250% of ampere rating | 5 | seconds | 2A-6A, opening time at 25ºC | 1 | |||
| Max. voltage rating | 32 | V | Amp code 002. | 1 | |||
| Interrupting rating (AC/DC) | 50 | A | @ 32VDC/12VAC; AC tested at rated voltage with unity power factor; DC time constant <0.8 msec | 1 | |||
| Continuous operation current derating | 80 | % | Continuous operation, no more than 80% of rated current | 1 | |||
| Preheat temperature Ts(min) | Ts(min) | 150 | °C | Pb-free reflow preheat | 2 | ||
| Preheat temperature Ts(max) | Ts(max) | 200 | °C | Pb-free reflow preheat | 2 | ||
| Preheat time (Ts(min) to Ts(max)) | ts | 60 | 180 | seconds | Pb-free reflow preheat | 2 | |
| Average ramp-up rate (TL to peak) | 3 | °C/second | Liquidus temp (TL) to peak | 2 | |||
| TS(max) to TL ramp-up rate | 5 | °C/second | TS(max) to TL | 2 | |||
| Time above liquidus (tL) | tL | 60 | 150 | seconds | Reflow, TL = 217°C | 2 | |
| Peak temperature (TP) | TP | 260 | °C | Pb-free reflow; printed as 260 +0/-5 °C | 2 | ||
| Time within 5°C of actual peak temperature (tp) | tp | 10 | 30 | seconds | Within 5°C of actual peak temperature | 2 | |
| Ramp-down rate | 6 | °C/second | Pb-free reflow | 2 | |||
| Time 25°C to peak temperature (TP) | 8 | minutes | 25°C to peak temperature | 2 | |||
| Wave soldering temperature | 260 | °C | Wave soldering, 10 seconds max | 2 | |||
| Wave soldering time | 10 | seconds | Wave soldering at 260°C | 2 | |||
| Nominal resistance | 0.049 | Ohms | Amp code 002.; measured with <10% rated current | 1 | |||
| Nominal power dissipation at rated current | 0.22 | W | At rated current, amp code 002. | 1 | |||
| Rated current (ampere rating) | 2 | A | Amp code 002. (2A) | 1 |
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 | 3 |
CAD (KiCad official)
- Symbol:
0438002.WRGT - Footprint:
Fuse:Fuse_0603_1608Metric - 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files:
0438002-wrgt-etched.step/0438002-wrgt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);0438002-wrgt.step/0438002-wrgt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (3 pp, sha256
8955cda3ab3cbc54, 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).