# EKYB350ELL222MK35S

**NCC Nippon Chemi Con** · Aluminum Electrolytic Capacitors - Leaded · CP_Radial_D12.5mm_P5.00mm

EKYB350ELL222MK35S from NCC Nippon Chemi Con, in a CP_Radial_D12.5mm_P5.00mm. 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 a POLARISED capacitor (Capacitors / Aluminum Electrolytic Capacitors - Leaded). Which terminal is the anode (+) is not yet recorded on this page: read it from the maker's datasheet before placing. |
| 2 | 2 | passive | Terminal 2 of a POLARISED capacitor (Capacitors / Aluminum Electrolytic Capacitors - Leaded). Which terminal is the anode (+) is not yet recorded on this page: read it from the maker's datasheet before placing. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | NCC Nippon Chemi Con |
| Package | CP_Radial_D12.5mm_P5.00mm |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating temperature range |  | -40 |  | 105 | ℃ |  | 1 |
| Capacitance tolerance (code M) |  | -20 |  | 20 | % | at 20℃, 120Hz | 1 |
| Dissipation factor (tanδ) max, 35Vdc | tanδ |  |  | 0.12 |  | at 20℃, 120Hz | 1 |
| Low temperature impedance ratio Z(-25℃)/Z(+20℃), max, 35Vdc | Z(-25℃)/Z(+20℃) |  |  | 2 |  | at 120Hz | 1 |
| Low temperature impedance ratio Z(-40℃)/Z(+20℃), max, 35Vdc | Z(-40℃)/Z(+20℃) |  |  | 3 |  | at 120Hz | 1 |
| Impedance max, 2,200µF 12.5×35 | Z |  |  | 0.018 | Ω | 100kHz, 20℃ | 2 |
| Impedance max, 2,200µF 12.5×35 at low temperature | Z |  |  | 0.072 | Ω | 100kHz, -10℃ | 2 |
| Endurance capacitance change (10,000 h, φ10 to 18) | ΔC/C | -25 |  | 25 | % | 105℃, rated voltage with rated ripple current applied, 10,000 hours, then restored to 20℃ | 1 |
| Endurance dissipation factor max (φ10 to 18, 10,000 h) | tanδ |  |  | 200 | % | 105℃, rated voltage with rated ripple current applied, 10,000 hours; percent of initial specified value | 1 |
| Shelf life capacitance change | ΔC/C | -25 |  | 25 | % | 500 hours at 105℃ without voltage applied, restored to 20℃ | 1 |
| Shelf life dissipation factor max | tanδ |  |  | 200 | % | 500 hours at 105℃ without voltage applied; percent of initial specified value | 1 |
| Rated voltage |  |  | 35 |  | Vdc | Part voltage code 350 (EKYB350E); catalog range 6.3 to 100Vdc | 1 |
| Nominal capacitance | C |  | 2200 |  | µF |  | 2 |
| Rated ripple current |  |  | 3140 |  | mArms | 105℃, 100kHz | 2 |

## CAD (KiCad official)

- Symbol: `EKYB350ELL222MK35S`
- Footprint: `Capacitor_THT:CP_Radial_D12.5mm_P5.00mm`
- 3D model: CP_Radial_D12.5mm_P5.00mm (KiCad packages3D, STEP)
- 3D model files: `ekyb350ell222mk35s-etched.step` / `ekyb350ell222mk35s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ekyb350ell222mk35s.step` / `ekyb350ell222mk35s.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [NCC Nippon Chemi Con datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589039226385653760) (3 pp, sha256 `ea33468a172a89ec`, retrieved 2026-11-06, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (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).

[Datasheet PDF](docs/ekyb350ell222mk35s-datasheet.pdf)