# 189RV184

**KNSCHA** · Aluminum Electrolytic Capacitors - SMD · CP_Elec_6.3x4.5

189RV184 from KNSCHA, in a CP_Elec_6.3x4.5. 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 | + | passive | Positive terminal (pad 1 of the CP_ footprint; symbol and 3D mark the + end). |
| 2 | - | passive | Negative terminal. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KNSCHA |
| Package | CP_Elec_6.3x4.5 |
| 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 | % |  | 2 |
| Leakage current (漏电流, 最大值) |  |  |  | 13.8 | uA |  | 2 |
| Loss tangent (损失角, 最大值) |  |  |  | 30 | % |  | 2 |
| Surge voltage (浪涌电压) |  |  |  | 7.2 | V |  | 2 |
| Rated ripple current (额定纹波电流) |  |  |  | 58 | mA rms | 105℃, 120Hz | 2 |
| Operating temperature range |  | -55 |  | 105 | ℃ | rated voltage 4 ~ 50 V.DC | 3 |
| Storage temperature (recommended) |  | 5 |  | 35 | ℃ | relative humidity < 75%RH, no direct sunlight | 6 |
| Reflow temperature rise rate (average) |  |  |  | 5 | ℃/s | average, reflow soldering | 4 |
| Reflow temperature fall rate (average) |  |  |  | 6 | ℃/s | average, reflow soldering | 4 |
| Reflow time from 25℃ to peak |  |  |  | 6 | min | 25℃ to peak temperature | 4 |
| Number of reflow passes |  |  |  | 2 | times | recommended reflow times | 4 |
| Capacitance change after surge test |  | -20 |  | 20 | % | relative to initial value; 1000 cycles, charge 30±5 s, discharge 5.5±0.5 min | 5 |
| Loss tangent after surge test |  |  |  | 1.75 | x spec value | not more than 1.75 times specified value | 5 |
| Capacitance change after high-temperature storage |  | -30 |  | 30 | % | 105±2℃, unpowered, 1000+48/-0 h; relative to initial value | 5 |
| Loss tangent after high-temperature storage |  |  |  | 3 | x spec value | 105±2℃, unpowered, 1000+48/-0 h | 5 |
| Capacitance change after endurance test |  | -30 |  | 30 | % | rated life at upper category temperature, rated voltage and ripple current applied; relative to initial value | 5 |
| Loss tangent after endurance test |  |  |  | 3 | x spec value | rated life at upper category temperature | 5 |
| Capacitance change over temperature characteristic |  | -25 |  | 25 | % | -25℃, -55℃, +105℃ vs 20℃ stage 1 value | 5 |
| Loss tangent over temperature characteristic |  |  |  | 5 | x spec value | -25℃, -55℃, +105℃ stages | 5 |
| Capacitance change after steady-state damp heat |  | -20 |  | 20 | % | 40±5℃, 90-95% RH, 240±8 h; relative to initial value | 5 |
| Loss tangent after steady-state damp heat |  |  |  | 1.2 | x spec value | 40±5℃, 90-95% RH, 240±8 h | 5 |
| Capacitance change after vibration |  | -5 |  | 5 | % | 10~55 Hz, 1.5 mm amplitude, 6 h total; relative to initial value | 5 |
| Capacitance change after reflow heat resistance |  | -10 |  | 10 | % | 250℃ for 30 s; relative to initial value | 5 |
| Capacitance change after rapid temperature change |  | -10 |  | 10 | % | -55℃ to +105℃, 5 cycles; relative to initial value | 5 |
| Rated voltage |  |  | 6.3 |  | V |  | 2 |
| Endurance life |  |  | 1000 |  | h | at 105℃ | 2 |

## 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 |  | tin | 6 Lead Wire 引线 镀锡铜包钢线 7 Base Plate 底座 热塑性树脂 | 3 |

## CAD (KiCad official)

- Symbol: `189RV184`
- Footprint: `Capacitor_SMD:CP_Elec_6.3x4.5`
- 3D model: CP_Elec_6.3x4.5 (KiCad packages3D, STEP)
- 3D model files: `189rv184-etched.step` / `189rv184-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `189rv184.step` / `189rv184.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KNSCHA datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590917977170923520) (6 pp, sha256 `29529b2006fd7967`, 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/189rv184-datasheet.pdf)