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Ⅰ.Overview of product

The RSCSK2243R3D02008U is a high-capacity electric double layer capacitor (supercapacitor) from Elna America’s DSK series. Engineered for surface mount applications, it delivers reliable energy storage and rapid charge/discharge performance, ideal for power backup and energy management in compact electronic systems.

Ⅱ.Core parameter

Category:Capacitors,Electric Double Layer Capacitors (EDLC),Supercapacitors

Manufacturer:Elna America

Series:DSK

Packaging:Tape & Reel

Capacitance:220 mF

Tolerance:-20%, +80%

Voltage - Rated:3.3 V

ESR (Equivalent Series Resistance):200Ohm

Lifetime @ Temp.:1000 Hrs @ 60°C

Termination:SMD (SMT) Tabs

Mounting Type:Surface Mount

Package / Case:Coin, Wide Terminals - Opposite Sides

Size / Dimension:0.268" Dia (6.80mm)

Height - Seated (Max):0.118" (3.00mm)

Operating Temperature:-10°C ~ 60°C

Ⅲ.Main characteristics

High Capacitance:220 mF capacity enables substantial energy storage in a compact form factor

Low ESR:200 Ohm equivalent series resistance supports fast charge/discharge cycles

Surface Mount:SMD tabs and compact coin package (6.80mm x 3.00mm) facilitate easy PCB integration

Wide Tolerance:-20% to +80% capacitance tolerance accommodates diverse application requirements

Stable Lifetime:1000-hour operational life at 60°C ensures long-term reliability

Moderate Voltage Rating:3.3 V rated voltage suits low-to-medium power electronic systems

Temperature Adaptability:-10°C to 60°C operating range works in standard environmental conditions

Secure Termination:Wide opposite-side terminals enhance soldering stability and electrical contact

 
Ⅳ.Application field

IoT Device Backup:Power retention for sensor data in smart thermostats and humidity monitors

Portable Electronics:Temporary energy storage for wireless earbud charging cases

LED Lighting:Power buffering for battery-powered LED flashlights and emergency exit signs

Wearable Tech:Energy management in fitness trackers and smartwatch power modules

Automotive Electronics:Backup power for car key fobs and tire pressure monitoring systems (TPMS)

Industrial Sensors:Short-term power supply for vibration sensors and temperature transmitters

Consumer Gadgets:Memory backup for digital cameras and portable audio recorders

Medical Devices:Power retention for glucose meters and portable pulse oximeters

Smart Home Devices:Energy buffering for smart doorbells and motion-activated security cameras

Ⅴ.Summary

The RSCSK2243R3D02008U supercapacitor offers high capacitance, fast charge/discharge capabilities, and compact surface-mount design, making it a practical choice for energy storage and backup in portable, IoT, and consumer electronic devices. Its reliable performance, stable lifetime, and easy integration meet the demands of low-power electronic systems across multiple sectors.