# EEU-FM1E681

**PANASONIC** · Aluminum Electrolytic Capacitors - Leaded · CP_Radial_D10.0mm_P5.00mm

EEU-FM1E681 from PANASONIC, in a CP_Radial_D10.0mm_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 | PANASONIC |
| Package | CP_Radial_D10.0mm_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 |
|---|---|---|---|---|---|---|---|
| Capacitance tolerance | ΔC | -20 |  | 20 | % | 120 Hz / +20 ℃ | 1 |
| Dissipation factor (tan δ), 25 V | tan δ |  |  | 0.14 |  | 120 Hz / +20 ℃ | 1 |
| Capacitance change after endurance | ΔC | -25 |  | 25 | % | After endurance test at +105 ℃ ±2 ℃ with DC voltage and ripple applied | 1 |
| Dissipation factor after endurance | tan δ |  |  | 200 | % of initial limit | After endurance test at +105 ℃ ±2 ℃ | 1 |
| Rush current |  |  |  | 100 | A | Charge/discharge applications; rush current must not exceed 100 A | 7 |
| Rated voltage |  |  |  | 25 | V | Do not exceed rated voltage; sum of DC and ripple peak voltage must not exceed rated working voltage | 1 |
| Category temperature range |  | -40 |  | 105 | ℃ |  | 1 |
| Nominal capacitance | C |  | 680 |  | μF |  | 4 |

## CAD (KiCad official)

- Symbol: `EEU-FM1E681`
- Footprint: `Capacitor_THT:CP_Radial_D10.0mm_P5.00mm`
- 3D model: CP_Radial_D10.0mm_P5.00mm (KiCad packages3D, STEP)
- 3D model files: `eeu-fm1e681-etched.step` / `eeu-fm1e681-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `eeu-fm1e681.step` / `eeu-fm1e681.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [PANASONIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589039002795696128) (11 pp, sha256 `771a58af26477cb6`, retrieved 2026-11-07, 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/eeu-fm1e681-datasheet.pdf)