7111141 RS Components Capacitor Polarised (Capacitor, Polarized Radial Diameter) In Stock
The RS Pro 7111141 is a 680 µF 25 V radial aluminium electrolytic capacitor in a 10 mm diameter by 17 mm tall can, rated for 2000-hour operational life at 85°C, suitable for power supply filtering and energy storage in consumer and industrial electronics.
- Manufacturer
- RS Components
- Package
- Capacitor, Polarized Radial Diameter
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- 7111141 Datasheet PDF
- Category
- Capacitor Polarised
- Price
- From $0.1420(MOQ 10)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 680 µF capacitance at 25 V DC rated voltage with 2000-hour lifetime at 85°C ensuring reliable long-term operation in power supply filter stages
- Radial lead 10 mm × 17 mm cylindrical package compatible with standard through-hole PCB footprints for power conversion and bulk decoupling circuits
- Aluminium electrolytic construction delivering high capacitance-per-dollar ratio for cost-effective bulk energy storage in AC-DC and DC-DC converter output stages
Applications
The RS Pro 7111141 680 µF 25 V capacitor is used as a bulk output filter in 12 V to 24 V switch-mode power supplies, smoothing rectified AC ripple and reducing output voltage ripple to acceptable levels for downstream sensitive circuits. Its 2000-hour rating at 85°C suits industrial power supply designs where ambient temperatures inside enclosures reach 60°C to 70°C during normal operation. The 10 mm radial footprint fits standard through-hole PCB designs in motor drive pre-charge circuits and UPS energy buffer stages.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What ripple current can the RS Pro 7111141 handle and how does this affect power supply output filter design?
Aluminium electrolytic capacitors in this 680 µF 25 V size class typically handle ripple current ratings of 1 A to 1.5 A RMS at 100 Hz and 85°C based on standard industry characterization for the 10 mm × 17 mm can size. In a 24 V DC output stage of a 50 W switch-mode supply, the output ripple current is approximately 0.5 A RMS at 100 kHz, well within this rating, making the 7111141 a suitable single-capacitor filter for output ripple suppression in cost-sensitive designs.
How does the 2000-hour rated lifetime of the 7111141 at 85°C translate to real-world operational years at lower temperatures?
Aluminium electrolytic capacitor lifetime roughly doubles for every 10°C reduction in operating temperature per the Arrhenius rule. At 65°C operating temperature the 2000-hour rating at 85°C extends to approximately 8000 hours, and at 45°C ambient it extends to roughly 32000 hours — about 3.6 years of continuous operation. In typical industrial equipment with 6000 annual power-on hours, the 7111141 at 65°C internal temperature yields an estimated 1.3-year service life before electrolyte degradation reaches end-of-life criteria.
What PCB mounting constraints does the 10 mm × 17 mm radial can of the 7111141 impose on through-hole layout?
The 10 mm diameter body requires a minimum 11 mm clearance circle on the PCB to prevent mechanical interference with adjacent components. Lead pitch for a 10 mm can is typically 5 mm between the two radial leads, requiring 5 mm hole spacing on the PCB. The 17 mm body height demands at least 18 mm of vertical clearance above the PCB, which constrains its use in low-profile enclosures or stacked PCB assemblies with board-to-board spacing below 20 mm.
Can the RS Pro 7111141 replace a 470 µF 25 V capacitor in an existing design without derating concerns?
Substituting 680 µF for 470 µF increases capacitance by approximately 45%, which reduces output voltage ripple by the same proportion at a given load current — a beneficial change in switch-mode power supply output filters. The 25 V voltage rating is identical, so no derating adjustment is required on the voltage side. The physical 10 mm × 17 mm can size must match the existing PCB footprint, but no electrical derating is needed since higher capacitance at the same voltage only improves filtering performance.
Which common power supply topologies can the 7111141 serve in as an output bulk capacitor at 25 V?
The 680 µF 25 V rating suits output bulk filtering in flyback converters producing 12 V to 24 V rails at up to 2 A output, forward converters, and full-bridge rectifiers in 15 V to 24 V linear power supplies. At a 24 V rail with 1 A load and 20 kHz switching frequency, a single 680 µF capacitor limits output ripple to approximately 3.7 mV peak-to-peak, meeting the ±1% regulation requirement of most industrial 24 V bus systems without additional parallel capacitors.
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Capacitor, Polarized Radial Diameter
Capacitor Polarised
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $0.1600 | $1.60 |
| 50+ | $0.1480 | $7.40 |
| 100+ | $0.1420 | $14.20 |
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