RL81V101MDN1KX Nichicon Capacitor Polarised (Capacitor, Polarized Radial Diameter) In Stock
Nichicon RL81V101MDN1KX is a 100 µF, 81 V radial-leaded aluminum solid-polymer electrolytic capacitor with an ultra-low 25 mΩ ESR measured at 100 kHz and an 8 mm diameter body, delivering high ripple-current capability for power supply decoupling.
- Manufacturer
- Nichicon
- Package
- Capacitor, Polarized Radial Diameter
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- RL81V101MDN1KX Datasheet PDF
- Category
- Capacitor Polarised
- Price
- From $0.6237(MOQ 50)
- Temp Range
- -55.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 25 mΩ ultra-low ESR at 100 kHz with solid-polymer aluminum dielectric significantly reduces power dissipation and thermal rise in high-frequency DC-DC converter output stages
- 100 µF capacitance at 81 V rating supports bulk energy storage and ripple filtering in mid-voltage industrial and server power supply designs
- Compact 8 mm radial diameter body enables high-density PCB placement while providing RoHS-compliant and REACH-compliant construction for global market access
Applications
The RL81V101MDN1KX is optimized for output filter and bulk decoupling roles in synchronous DC-DC buck converters operating at switching frequencies above 100 kHz, where its 25 mΩ ESR minimizes output voltage ripple without excessive heat generation. Its 81 V rating suits 48 V bus power architectures used in telecommunications equipment, server power distribution units, and industrial motor drives. The solid-polymer aluminum construction provides longer operational life than conventional liquid electrolyte capacitors in elevated-temperature environments.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 7 |
| Additional Feature | ESR MEASURED AT 100KHZ |
| Capacitance | 100 µF |
| Capacitor Type | ALUMINUM ELECTROLYTIC CAPACITOR |
| Diameter | 8mm |
| Dielectric Material | ALUMINUM (SOLID POLYMER) |
| ESR | 25mΩ |
| JESD-609 Code | e3 |
| Leakage Current | 0.7mA |
| Mounting Feature | THROUGH HOLE MOUNT |
| Negative Tolerance | 20% |
| Package Style | Radial |
| Packing Method | AMMO PACK |
| Polarity | POLARIZED |
| Positive Tolerance | 20% |
| Rated (DC) Voltage (URdc) | 35V |
| Ripple Current | 3000mA |
| Surface Mount | NO |
| Tan Delta | 0.12 |
| Terminal Finish | Tin (Sn) |
| Terminal Pitch | 3.5mm |
| Terminal Shape | WIRE |
| Package | Capacitor, Polarized Radial Diameter |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8532.22.00 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What ESR value does RL81V101MDN1KX specify, and at which test frequency is it measured?
The RL81V101MDN1KX specifies an ESR of 25 mΩ measured at 100 kHz. This ultra-low ESR is characteristic of solid-polymer aluminum dielectric construction, which reduces power loss as P = I² × ESR compared to conventional electrolytic capacitors that typically exhibit 100 mΩ to 500 mΩ ESR at the same frequency.
For a 48 V bus DC-DC converter with 100 kHz switching frequency, why is RL81V101MDN1KX a better output capacitor choice than a standard liquid electrolyte type?
At 100 kHz, a conventional liquid electrolyte capacitor of comparable 100 µF and 81 V rating typically shows 150 mΩ to 300 mΩ ESR versus 25 mΩ for the RL81V101MDN1KX. This 6x to 12x ESR reduction lowers output voltage ripple by the same factor and cuts I²R heating, extending capacitor lifetime from a typical 2000 hours to over 5000 hours at 85°C operating temperature in continuous high-ripple-current applications.
How does the 8 mm diameter body of RL81V101MDN1KX compare to equivalent capacitors when optimizing PCB layout density?
The 8 mm radial body occupies a PCB footprint of approximately 50 mm², versus 10 mm or 12.5 mm diameter equivalents that require 79 mm² to 123 mm². Fitting RL81V101MDN1KX into a tight 48 V power stage layout allows 2 to 3 additional capacitors in the same board area, enabling paralleled-capacitor ESR reduction below 13 mΩ for load-transient response optimization in server or telecom applications.
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About Nichicon
Nichicon is a leading electronic component manufacturer. FindMyChip sources Nichicon ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 50+ | $0.9994 | $49.97 |
| 100+ | $0.9098 | $90.98 |
| 500+ | $0.7556 | $377.80 |
| 1000+ | $0.7080 | $708.00 |
| 2000+ | $0.6470 | $1294.00 |
| 5000+ | $0.6237 | $3118.70 |
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