component
nSMD025-33V
Public Made by Adomby adom
TECHFUSE Resettable 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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Contents
README
markdownnSMD025-33V
TECHFUSE · Resettable Fuses · 1206
nSMD025-33V from TECHFUSE, 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 | Terminal 1 of the non-polarized resettable PPTC fuse (hold current 0.25 A, Vmax 33 Vdc, Imax 100 A); in series with the protected load. |
| 2 | 2 | passive | Terminal 2 of the non-polarized resettable PPTC fuse (hold current 0.25 A, Vmax 33 Vdc, Imax 100 A); in series with the protected load. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECHFUSE |
| 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 |
|---|---|---|---|---|---|---|---|
| Minimum resistance prior to tripping at 25°C (Rimin) | Rimin | 0.35 | W | 25°C, prior to tripping | 2 | ||
| Maximum resistance one hour post reflow (R1max) | R1max | 2.5 | W | one hour post reflow | 2 | ||
| Minimum trip current (Itrip) | Itrip | 0.5 | A | 25°C still air | 2 | ||
| Hold current (Ihold) | Ihold | 0.25 | A | 25°C still air; maximum current device will not trip | 2 | ||
| Maximum operating voltage (Vmax) | Vmax | 33 | Vdc | at rated current (Imax) | 2 | ||
| Maximum fault current (Imax) | Imax | 100 | A | at rated voltage (Vmax) | 2 | ||
| Power dissipation in tripped state (Pd) | Pd | 0.6 | W | tripped state, 25°C still air, at rated voltage | 2 | ||
| Max. current (time-to-trip test) | 8 | A | Time To Trip @25°C, Max. Current column | 2 | |||
| Time to trip | 0.08 | Sec | Time To Trip @25°C, paired with 8.00 A max. current | 2 | |||
| Maximum surface temperature in tripped state | 125 | °C | device in tripped state | 2 | |||
| Ambient operating temperature | -40 | 85 | °C | ambient operating conditions | 2 | ||
| Storage temperature | 40 | °C | storage conditions, 70% R.H. max | 4 | |||
| Hold current vs maximum ambient operating temperature | Ihold | 0.37 | A | Tmao -40°C | 2 | ||
| Hold current vs maximum ambient operating temperature | Ihold | 0.33 | A | Tmao -20°C | 2 | ||
| Hold current vs maximum ambient operating temperature | Ihold | 0.29 | A | Tmao 0°C | 2 | ||
| Hold current vs maximum ambient operating temperature | Ihold | 0.25 | A | Tmao 25°C | 2 | ||
| Hold current vs maximum ambient operating temperature | Ihold | 0.22 | A | Tmao 40°C | 2 | ||
| Hold current vs maximum ambient operating temperature | Ihold | 0.2 | A | Tmao 50°C | 2 | ||
| Hold current vs maximum ambient operating temperature | Ihold | 0.17 | A | Tmao 60°C | 2 | ||
| Hold current vs maximum ambient operating temperature | Ihold | 0.15 | A | Tmao 70°C | 2 | ||
| Hold current vs maximum ambient operating temperature | Ihold | 0.12 | A | Tmao 85°C | 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 | Copper | tin | α = Trademark A = Part identification Termination Pad Characteristics Terminal pad materials： Tin-plated Nickel-Copper Terminal pad solderability： Meets EIA specification RS186-9E and ANSI/J-STD-002 C | 3 |
CAD (KiCad official)
- Symbol:
nSMD025-33V - Footprint:
Fuse:Fuse_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
nsmd025-33v-etched.step/nsmd025-33v-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);nsmd025-33v.step/nsmd025-33v.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECHFUSE datasheet (4 pp, sha256
e16cef45915e2a3d, 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).