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 Capacitor Tolerance -20/+80% 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 The internal resistance of the supercapacitor prevents drawing high current discharge currents. Select the supercapacitor capable of delivering the peak current at switchover to back-up mode using the following table. Maximum Operating (Discharge) Current Series 0.1 F to 0.47 F to 3.3 F to 10 F to 0.047 F 0.33 F 1.5 F 4.7 F 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 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. t: Back-up time (s) C: Capacitance of Type EDL (F) V : Applied voltage (V) 0 V : Cut-off voltage (V) 1 i: Current during back-up (A) i : Leakage current (A) L R: Internal resistance (Ω) at 1 kHz CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Type EDL , Electric Double Layer Supercapacitors Ultra High Capacitance, Small Case Size Options Life Design Type EDL supercapacitors have a useful lifetime that decreases with increasing operating temperature, humidity, applied-voltage, current and backup-time requirements. Expected lifetime is the product of four factors: Expected Life = (Lifetime)•(Temperature Factor)•(Voltage Factor)•(Moisture Factor) Lifetime The minimum rated life at 85 ºC with 5.5 Vdc applied is 1000 hours with maximum permitted end-of-life capacitance change of –30% and a 4 times increase in internal resistance. Temperature Factor To determine the effect of temperature on expected life of a supercapaci- tor, use the fact that expected lifetime doubles for each 10 ºC that the operating temperature is reduced. As an illustration, at 85 ºC and full voltage the rated lifetime is 1000 hours. So, at 40 ºC the expected lifetime would be multiplied by 2(85-40)/10 = 2^4.5 = 22.6 times. The Tempera- ture Factor is 22.6, and for 1000-h, 85 °C rated life, the expected 40 °C life would be 22600 hours. Voltage Factor The rate of change of capacitance decreases with decreasing applied voltage. The effect on life extension is roughly proportional to the voltage derating, e.g., 5 V applied to 5.5 V rated supercapacitors extends the life 1.1 times. Moisture Factor Expected life of these supercapacitors is considerably shortened by operation in high humidity. The applications discussed here assume that the relative humidity is no more than 50%. Expected Life Example So, for a 5.5 V supercapacitor at 40 °C charged to 5.V in less than 50% RH the expected life is: Expected Life = (Lifetime) (Temperature Factor) (Voltage Factor) (Moisture Factor) = (1000 h) (22.6) (1.1) (1) = 24800 hours = 2.8 years RoHS Compliant Electric Double Layer Supercapacitor Construction Current Current Activated Collector Electrolyte Separator Collector Carbon Resistor Resistor Electric Double to Charge to Move Ions Layer Capacitor CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Type EDL , Electric Double Layer Supercapacitors Ratings Max. Resistance Case Case Catalog Voltage @ 1 kHz Case Dia. Length Part Number Capacitance (Vdc) (Ω) Type (mm) (mm) Style EDLHW335D2R3R** 3.3 F 0.3 12.5 23 HW EDLHW475D2R3R** 4.7 F 0.3 12.5 23 EDLHW106D2R3R** 10 F 0.2 12.5 35 2.3 Radial EDLHW226D2R3R** 22 F 0.1 18 35 Lead EDLHW306D2R3R** 30 F 0.1 18 35 EDLHW506D2R3R** 50 F 0.1 18 40 EDLHW706D2R1R** 70 F 2.1 0.1 18 50 EDLF473A5R5C^ 0.047 F 120 13.5 9.5 F EDLF104A5R5C 0.10 F 100 13.5 9.5 Stacked EDLF474B5R5C 0.47 F 5.5 75 21.5 9.5 Coin EDLF684B5R5C 0.68 F 50 21.5 9.5 EDLF105B5R5C 1.00 F 50 21.5 9.5 +85 ºC EDLNF104A5R5C^ .10 F 75 13.5 7.5 NF EDLNF224A5R5C .22 F 75 13.5 7.5 Stacked EDLNF474B5R5C .47 F 5.5 30 21.5 8.0 Coin EDLNF105B5R5C 1.0 F 30 21.5 8.0 EDLNF155B5R5C 1.5 F 30 21.5 8.0 +70 ºC EDLSG474V5R5C .47 F 30 19 5.0 SG Stacked EDLSG105V5R5C 1.0 F 5.5 30 19 5.0 Coin EDLSG155V5R5C 1.5 F 30 19 5.0 EDLSG474H5R5C .47 F 30 20 6.0 Stacked EDLSG105H5R5C 1.0 F 5.5 30 20 6.0 Coin EDLSG155H5R5C 1.5 F 30 20 6.0 +70 ºC EDLSD223V5R5C** .022 F 150 10.5 5.0 SD EDLSD473V5R5C** .047 F 120 10.5 5.0 Stacked EDLSD104V5R5C^ .10 F 5.5 75 10.5 5.0 Coin EDLSD224V5R5C .22 F 75 10.5 5.0 EDLSD334V5R5C .33 F 75 10.5 5.0 EDLSD223H5R5C** .022 F 150 11.5 5.5 EDLSD473H5R5C** .047 F 120 11.5 5.5 Stacked EDLSD104H5R5C^ .10 F 5.5 75 11.5 5.5 Coin EDLSD224H5R5C .22 F 75 11.5 5.5 EDLSD334H5R5C .33 F 75 11.5 5.5 +70 ºC EN EDLEN204A3R3S** .20 F 3.3 200 SMT Wide Lead 6.8 1.8 EDLEN204RL3R3S** .20 F 3.3 200 SMT Radial Lead 6.8 1.8 +60 ºC ** Product is obsolete and no longer available. ^ Product has been discontinued, replacement part is part-number below discontinued number. CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Type EDL , Electric Double Layer Supercapacitors Outline Drawing and Dimensions * * 30, 50, 70 F : +60 ºC CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Type EDL , Electric Double Layer Supercapacitors Outline Drawing and Dimensions Style SD 70 ºC Stacked Coin Style EN -10 to +60 ºC Surface Mount Notes: 1 - Style EN is packaged on 24 mm wide tape and a 330 mm dia. reel, with 2000 pieces per reel. 2 - Only Style EN is capable of reflow soldering. Peak reflow soldering temperature is 250 ºC for a maximum of 5 seconds, with a maximum of 30 seconds at or above 220 ºC. 3 - Do not reflow solder when the cell voltage is above 0.3 V. CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Type EDL , Electric Double Layer Supercapacitors Applications and Recommended Series Recommended Application Function Component Series Mobile Phones Real-Time Clock Back-Up EN PDA Real-Time Clock Back-Up DSC Real-Time Clock Back-Up EN, SD DVD Recorder Real-Time Clock and Channel Back-Up SD, SG Digitial TV Real-Time Clock and Channel Back-Up SD, SG NF PC, Server Real-Time Clock and Channel Back-Up F Mobile Phone Real-Time Clock and Channel Back-Up Base Station Inkjet Printer Time and Impact Back-Up SD, SG, NF Electric Power Real-Time Clock and Data Back-Up F Gas and Water Meters LED Light LED Lighting at Night with Solar Battery HW Toys Motor Drives Toy Games Real-Time Clock Back-Up EN Robot Real-Time Clock and Data Back-Up F Car Audio Memory Real-Time Clock Back-Up CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Type EDL , Electric Double Layer Supercapacitors Performance Data Self-Discharging Characteristics Versus Charging Time Part number: EDLF105B5R5C (5.5 V 1.0 F) Charge voltage: 5V Time (h) Charging Characteristics Part number: EDLF105B5R5C (5.5 V 1.0 F) @ +20 ºC 30 Ω 100 Ω Time (m) CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Voltage Voltage Notice and Disclaimer: All product drawings, descriptions, specifications, statements, information and data (collectively, the “Information”) in this datasheet or other publication are subject to change. The customer is responsible for checking, confirming and verifying the extent to which the Information contained in this datasheet or other publication is applicable to an order at the time the order is placed. 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