component
T491A225K035ATAUTO
Public Made by Adomby adom
KEMET Tantalum Capacitors, 1206. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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
markdownT491A225K035ATAUTO
KEMET · Tantalum Capacitors · 1206
T491A225K035ATAUTO from KEMET, 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 an unpolarised capacitor; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised capacitor; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KEMET |
| Package | 1206 |
| Category | Capacitors |
| 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 |
|---|---|---|---|---|---|---|---|
| Capacitance tolerance (K) | -10 | 10 | % | K tolerance (±10%) | 2 | ||
| Rated voltage | VR | 35 | VDC | at 85°C | 8 | ||
| Operating temperature range | -55 | 125 | °C | Operating temperature | 2 | ||
| DC leakage current | 0.8 | µA | +25°C, maximum/5 min | 8 | |||
| Dissipation factor | DF | 6 | % | +25°C, 120 Hz, maximum | 8 | ||
| Equivalent series resistance | ESR | 4 | Ω | +25°C, 100 kHz, maximum | 8 | ||
| Maximum power dissipation (case A) | Pmax | 75 | mW | at 25°C with +20°C rise, case A 3216-18 | 10 | ||
| Recommended maximum application voltage | 50 | % of VR | −55°C to 85°C | 10 | |||
| Recommended maximum application voltage | 33 | % of VR | 85°C to 125°C | 10 | |||
| Working DC voltage change with temperature | 67 | % of VR | 85°C to 125°C | 10 | |||
| Surge voltage | 1.32 | x VR | 85°C, 1,000 cycles | 3 | |||
| Surge voltage | 1.2 | x VR | 125°C, 1,000 cycles | 3 | |||
| Temperature stability ΔC/C | -10 | 10 | % | −55°C; IL = initial limit (at +25°C) | 3 | ||
| Temperature stability ΔC/C | -20 | 20 | % | +125°C; IL = initial limit (at +25°C) | 3 | ||
| Temperature stability DF | DF | 1.5 | x IL | +85°C; IL = initial limit | 3 | ||
| Temperature stability DCL | DCL | 10 | x IL | +85°C; IL = initial limit | 3 | ||
| Temperature stability DCL | DCL | 12 | x IL | +125°C; IL = initial limit | 3 | ||
| Endurance ΔC/C | -10 | 10 | % | 85°C at rated voltage, 2,000 hours | 3 | ||
| Endurance DCL | DCL | 1.25 | x initial limit | 85°C at rated voltage, 2,000 hours | 3 | ||
| Storage life ΔC/C | -10 | 10 | % | 125°C at 0 volts, 2,000 hours | 3 | ||
| Storage life DCL | DCL | 1.25 | x initial limit | 125°C at 0 volts, 2,000 hours | 3 | ||
| Thermal shock ΔC/C | -5 | 5 | % | MIL-STD-202 Method 107 Cond. B, −55°C to 125°C, 1,000 cycles | 3 | ||
| Surge ΔC/C | -5 | 5 | % | 85°C, 1.32 x rated voltage, 1,000 cycles | 3 | ||
| Mechanical shock/vibration ΔC/C | -10 | 10 | % | MIL-STD-202 Method 213 Cond. I; Method 204 Cond. D | 3 |
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 | gold | solder systems. Tin/lead (Sn/Pb) terminations are available upon request for any part number. Gold-plated terminations | 1 |
CAD (KiCad official)
- Symbol:
T491A225K035ATAUTO - Footprint:
Capacitor_SMD:C_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
t491a225k035atauto-etched.step/t491a225k035atauto-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);t491a225k035atauto.step/t491a225k035atauto.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KEMET datasheet (19 pp, sha256
62e54a90852581a2, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal convention(convention), consensusoff(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).