# EKY-101ETD331ML25S

**NCC Nippon Chemi Con** · Aluminum Electrolytic Capacitors - Leaded · CP_Radial_D16.0mm_P7.50mm

EKY-101ETD331ML25S from NCC Nippon Chemi Con, in a CP_Radial_D16.0mm_P7.50mm. 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_D16.0mm_P7.50mm |
| 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 (M = ±20%) |  | -20 |  | 20 | % | at 20℃, 120Hz | 1 |
| Operating temperature range |  | -40 |  | 105 | ℃ | Category temperature range | 1 |
| Rated voltage (100Vdc variant) |  |  |  | 100 | Vdc | Rated voltage of EKY-101E (100Vdc column); peak voltage shall not exceed rated voltage | 1 |
| Dissipation factor tanδ (max) | tanδ |  |  | 0.08 |  | 100Vdc column; at 20℃, 120Hz | 1 |
| Low temperature impedance ratio Z(-25℃)/Z(+20℃) (max) | Z(-25℃)/Z(+20℃) |  |  | 2 |  | 100Vdc column; at 120Hz | 1 |
| Low temperature impedance ratio Z(-40℃)/Z(+20℃) (max) | Z(-40℃)/Z(+20℃) |  |  | 3 |  | 100Vdc column; at 120Hz | 1 |
| Impedance at 20℃ (max) |  |  |  | 0.038 | Ω | 100kHz, 20℃; EKY-101E 330µF 16×25 row | 3 |
| Impedance at -10℃ (max) |  |  |  | 0.12 | Ω | 100kHz, -10℃; EKY-101E 330µF 16×25 row | 3 |
| Leakage current (max; I=0.01CV or 3µA, whichever is greater) | I |  |  | 3 | µA | I=0.01CV or 3µA, whichever is greater; C nominal µF, V rated V; at 20℃ after 2 minutes | 1 |
| Endurance capacitance change |  | -25 |  | 25 | % | 105℃, rated voltage with rated ripple current applied, 10,000 hours (φ12.5 to 18, 16 to 100Vdc); restored to 20℃ | 1 |
| Endurance tanδ (max) | tanδ |  |  | 200 | % | Percent of initial specified value; 105℃, 10,000 hours endurance (φ12.5 to 18, 16 to 100Vdc) | 1 |
| Shelf life capacitance change |  | -25 |  | 25 | % | 500 hours at 105℃ without voltage applied; restored to 20℃ | 1 |
| Shelf life tanδ (max) | tanδ |  |  | 200 | % | Percent of initial specified value; 500 hours at 105℃ without voltage applied | 1 |
| Rated ripple current |  |  | 1700 |  | mArms | 105℃, 100kHz; EKY-101E 330µF 16×25 row | 3 |

## CAD (KiCad official)

- Symbol: `EKY-101ETD331ML25S`
- Footprint: `Capacitor_THT:CP_Radial_D16.0mm_P7.50mm`
- 3D model: CP_Radial_D16.0mm_P7.50mm (KiCad packages3D, STEP)
- 3D model files: `eky-101etd331ml25s-etched.step` / `eky-101etd331ml25s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `eky-101etd331ml25s.step` / `eky-101etd331ml25s.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/8603125015366164480) (3 pp, sha256 `4b07453a2af9422e`, 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/eky-101etd331ml25s-datasheet.pdf)