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EDLSD104V5R5C Datasheet(PDF) 1 Page - Cornell Dubilier Electronics |
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EDLSD104V5R5C Datasheet(HTML) 1 Page - Cornell Dubilier Electronics |
1 / 8 page Type EDL , Electric Double Layer Supercapacitors Ultra High Capacitance, Small Case Size Options Type EDL electric double layer supercapacitors offer extremely high capacitance values (farads) in a variety of packaging options that will satisfy, low profile, surface mount, through hole and high density assembly requirements. The EDL is a cut above the standard electrolytic capacitor in that it can act as a battery without having to deal with the environmental or hazardous material issues that batteries entail. Highlights - Unlimited charging and discharging capability - Recycling is not necessary - Long Life - 15 years - Low ESR - Will extend battery life up to 1.6 times - First class performance with economy pricing Specifications Operating Temperature Range –25 ºC to +85 ºC Rated Voltage Range 2.1 Vdc to 5.5 Vdc Capacitance Range 0.022 F to 70 F How To Select an Electric Double Layer Capacitor Estimated Initial Backup Time Back-up time for Type EDL Electric Double Layer Supercapacitors decreas- es with use and over time especially when the current is large or operat- ing at high temperature. Be sure to specify extra back-up time initially to allow for product changes. Select the optimum supercapacitor according to applied current The internal resistance of the supercapacitor prevents drawing high discharge currents. Select the supercapacitor capable of delivering the peak current at switchover to back-up mode using the following table. Back Up Time Example Back-up time is the time it takes for the applied voltage to decay to the cut-off voltage set by the user after applying the application’s maximum voltage at application maximum temperature. Example: An F Type EDL, P/N EDLF105B5R5C (Rated at 5.5 V, 1.0 F) is charged to 5.0 Vdc. The circuit requirement is such that it must maintain a memory circuit with a current drain of 10 µA in an ambient temperature of +40 ºC. The memory RTC cut-off voltage is 2.0 Vdc. Using minimum capacitance, calculate the back-up time as follows: t = CΔV ⁄ I = C[V0–(i•R)–V1] ⁄ (i+iL) C = 1.0 F–20% = 0.8 F, R=50 Ω, V0=5 V, V1=2 V, i=10 µA Therefore, t = 0.8 (5–0.0005–2) ⁄ ((10+2) x10^–6)= 55 hours And thus the initial back-up time is 55 hours. After 1000 hours, calculate the back-up time will drop to about 38 hours. CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Series Maximum Operating (Discharge) Current 0.047 F 0.1 F to 0.33 F 0.47 F to 1.5 F 3.3 F to 4.7 F 10 F to 50 F SG, SD, NF 200 µA 300 µA 1 mA – – F 200 µA 300 µA 300 µA – – EN – 10 µA – – – HW – – – 300 mA 1 A t: Back-up time (s) C: Capacitance of Type EDL (F) V 0: Applied voltage (V) V 1: Cut-off voltage (V) i: Current during back-up (A) i L: Leakage current (A) R: Internal resistance (Ω) at 1 kHz |
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