# 400BXC68MEFC18X25

**Rubycon** · Aluminum Electrolytic Capacitors - Leaded · CP_Radial_D18.0mm_P7.50mm

400BXC68MEFC18X25 from Rubycon, in a CP_Radial_D18.0mm_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 | Rubycon |
| Package | CP_Radial_D18.0mm_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 |  | -20 |  | 20 | % | 20℃, 120Hz | 1 |
| Dissipation factor tanδ (MAX), 400 Vdc column | tanδ |  |  | 0.2 |  |  | 1 |
| Impedance ratio Z(-25℃)/Z(20℃) (MAX), 400 Vdc column | Z(-25℃)/Z(20℃) |  |  | 6 |  | 120Hz | 1 |
| Category temperature range |  | -25 |  | 105 | ℃ |  | 1 |
| Life time (endurance), case φD≥12.5 |  | 12000 |  |  | hours | 105℃, rated voltage with rated ripple current applied, φD≥12.5 mm | 1 |
| Capacitance change after endurance |  | -20 |  | 20 | % | After 105℃ endurance test; within ±20% of initial value | 1 |
| Leakage current after endurance (relative to specified value) |  |  |  | 200 | % | After 105℃ endurance test; not more than 200% of specified value | 1 |
| Dissipation factor after endurance (MAX) | tanδ |  |  | 0.2 |  | After 105℃ endurance test; not more than specified value | 1 |
| Rated voltage |  |  | 400 |  | Vdc |  | 1 |
| Nominal capacitance | C |  | 68 |  | µF |  | 2 |

## CAD (KiCad official)

- Symbol: `400BXC68MEFC18X25`
- Footprint: `Capacitor_THT:CP_Radial_D18.0mm_P7.50mm`
- 3D model: CP_Radial_D18.0mm_P7.50mm (KiCad packages3D, STEP)
- 3D model files: `400bxc68mefc18x25-etched.step` / `400bxc68mefc18x25-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `400bxc68mefc18x25.step` / `400bxc68mefc18x25.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Rubycon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588937386168897536) (2 pp, sha256 `c2049af7fdf1111c`, retrieved 2026-11-06, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/400bxc68mefc18x25-datasheet.pdf)