component
1206HV-3A
Public Made by Adomby adom
prosemi 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
markdown1206HV-3A
prosemi · Disposable Fuses · 1206
1206HV-3A from prosemi, 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 terminal of the 3.00 A fast-acting thick film chip fuse (125Vdc, 50A interrupting rating); the part is non-polarized and the terminals are interchangeable, with a 1.52 mm x 2.03 mm pad shown in the pad layout. |
| 2 | 2 | passive | Other terminal of the 3.00 A fast-acting thick film chip fuse (125Vdc, 50A interrupting rating); the part is non-polarized and the terminals are interchangeable, with a 1.52 mm x 2.03 mm pad shown in the pad layout. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | prosemi |
| 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 |
|---|---|---|---|---|---|---|---|
| Opening time at 100% of amp rating | 4 | Hours | 100% of amp rating; 0.25~5A group | 1 | |||
| Opening time at 250% of amp rating | 5 | Seconds | 250% of amp rating; 0.25~5A group | 1 | |||
| Interrupting rating | 50 | A | 125Vdc; DC interrupting, time constant less than 50 microseconds, battery source | 1 | |||
| Operating temperature | -55 | 150 | °C | with proper correction factor applied | 2 | ||
| Ampere rating | 3 | A | Part 1206HV-3A | 1 | |||
| Voltage rating | 125 | Vdc | Part 1206HV-3A | 1 | |||
| Typical cold resistance | 0.032 | Ohms | measured at <10% of rated current, ambient 25°C | 1 | |||
| Typical melting I2t | I2t | 0.065 | A Sec | measured at 10In current | 1 | ||
| Typical voltage drop | 0.13 | V | 1 |
CAD (KiCad official)
- Symbol:
1206HV-3A - Footprint:
Fuse:Fuse_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
1206hv-3a-etched.step/1206hv-3a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1206hv-3a.step/1206hv-3a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: prosemi datasheet (4 pp, sha256
66f6f4e95a4f3a40, retrieved 2026-10-19, 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).