SAMWHA Electrolytic Capacitor 25V 1000uF
The SAMWHA 1000 µF, 25 V aluminium electrolytic capacitor is engineered as a high-capacitance, long-life bulk energy component for modern power electronics. Housed in a cylindrical aluminium can with a printed sleeve, the part provides substantial charge storage in a compact package. Its design aims to reduce ripple and stabilise DC buses while keeping a small PCB footprint.
Electrically the device is specified for reliable operation under elevated temperature and ripple conditions; the CD11-GAS family (the series shown in your PDF) applies an improved electrolyte formulation and construction targeted at extended endurance and controlled dissipation. The part maintains capacitance and leakage characteristics within the manufacturer’s limits over its rated life, making it suitable for repetitive ripple and standby duties.
Mechanically the capacitor uses a flame-retardant sleeve and tinned leads for solderability and mechanical robustness. The datasheet emphasises long life (10,000 hours at 105 °C for the CD11-GAS family), conservative leakage specifications and defined impedance/temperature behaviour so designers can predict performance across operating conditions.
Features:
- Rated capacitance 1000 µF at 25 Vdc.
- Part of the CD11-GAS series (upgraded for longer life and improved performance).
- Long endurance: specified for 10,000 hours at 105 °C.
- Low leakage current per manufacturer formula I ≤ 0.03·C·V + 10 µA (at 20 °C, after 2 min).
- Dissipation factor (tanδ) controlled to series limits (25 V entries shown in datasheet).
- Flame-retardant sleeve and tinned leads for reliable soldering.
Specifications:
| Parameter: | Value: |
|---|---|
| Capacitance: | 1000 µF. |
| Rated voltage: | 25 VDC. |
| Series: | CD11-GAS (SAMWHA — upgrade of CD11-GA). |
| Tolerance: | ±20% (typical for this family / code table). |
| Dissipation factor (tanδ) max: | 0.16 (value for 25 V entries in the datasheet table). |
| Leakage current: | I ≤ 0.03·C·V + 10 µA (measured at 20 °C, after 2 minutes). |
| Endurance: | 10,000 hours at 105 °C (CD11-GAS series). |
| Temperature range: | -40 °C to +105 °C (series operating range / endurance rating). |
| Impedance ratio (Z): | Z(−25 °C)/Z(+20 °C) ≈ 2; Z(−40 °C)/Z(+20 °C) ≈ 5 (25 V typical table). |
| Mounting / Package: | Aluminium can, sleeve, radial leads — see D×L case table in datasheet. |
Pinout Diagram:
Footprint Diagram:
Applications:
- Power-supply bulk smoothing and decoupling.
- LED-driver energy storage and ripple suppression.
- DC-link or intermediate bus filtering in power converters.
- Load-dump and pulse energy buffering in power electronics.
- General industrial and consumer power-electronics filtering.
Package Contents:
- 1x SAMWHA Electrolytic Capacitor 25V 1000uF
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