Type EDL , Electric Double Layer Supercapacitors
Ultra High Capacitance, Small Case Size Options
Type EDL electric double layer supercapacitors oer extremely
high capacitance values (farads) in a variety of packaging options
that will satisfy, low prole, 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
Specications
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-o 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-o 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)
V0: Applied voltage (V)
V1: Cut-off voltage (V)
i: Current during back-up (A)
iL: Leakage current (A)
R: Internal resistance (Ω) at 1 kHz
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 eect 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 eect 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
Type EDL , Electric Double Layer Supercapacitors
Ultra High Capacitance, Small Case Size Options
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Current
Collector Electrolyte Separator
Activated
Carbon
Current
Collector
Resistor
to Charge Electric Double
Layer Capacitor
Resistor
to Move Ions
Electric Double Layer Supercapacitor Construction
Type EDL , Electric Double Layer Supercapacitors
Ratings
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
+85 ºC
+70 ºC
F
NF
SG
SD
+70 ºC
EN
+70 ºC
HW
+60 ºC
Catalog
Part Number Capacitance
Voltage
(Vdc)
Max.
Resistance
@ 1 kHz
(Ω)
Case
Type
Case
Dia.
(mm)
Case
Length
(mm) Style
EDLHW335D2R3R** 3.3 F
2.3
0.3
Radial
Lead
12.5 23
EDLHW475D2R3R** 4.7 F 0.3 12.5 23
EDLHW106D2R3R** 10 F 0.2 12.5 35
EDLHW226D2R3R** 22 F 0.1 18 35
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
5.5
120
Stacked
Coin
13.5 9.5
EDLF104A5R5C 0.10 F 100 13.5 9.5
EDLF474B5R5C 0.47 F 75 21.5 9.5
EDLF684B5R5C 0.68 F 50 21.5 9.5
EDLF105B5R5C 1.00 F 50 21.5 9.5
EDLNF104A5R5C^.10 F
5.5
75
Stacked
Coin
13.5 7.5
EDLNF224A5R5C .22 F 75 13.5 7.5
EDLNF474B5R5C .47 F 30 21.5 8.0
EDLNF105B5R5C 1.0 F 30 21.5 8.0
EDLNF155B5R5C 1.5 F 30 21.5 8.0
EDLSG474V5R5C .47 F
5.5
30
Stacked
Coin
19 5.0
EDLSG105V5R5C 1.0 F 30 19 5.0
EDLSG155V5R5C 1.5 F 30 19 5.0
EDLSG474H5R5C .47 F
5.5
30
Stacked
Coin
20 6.0
EDLSG105H5R5C 1.0 F 30 20 6.0
EDLSG155H5R5C 1.5 F 30 20 6.0
EDLSD223V5R5C** .022 F
5.5
150
Stacked
Coin
10.5 5.0
EDLSD473V5R5C** .047 F 120 10.5 5.0
EDLSD104V5R5C^.10 F 75 10.5 5.0
EDLSD224V5R5C .22 F 75 10.5 5.0
EDLSD334V5R5C .33 F 75 10.5 5.0
EDLSD223H5R5C** .022 F
5.5
150
Stacked
Coin
11.5 5.5
EDLSD473H5R5C** .047 F 120 11.5 5.5
EDLSD104H5R5C^.10 F 75 11.5 5.5
EDLSD224H5R5C .22 F 75 11.5 5.5
EDLSD334H5R5C .33 F 75 11.5 5.5
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
** Product is obsolete and no longer available.
^ Product has been discontinued, replacement part is part-number below discontinued number.
+85 ºC
Outline Drawing and Dimensions
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
*
* 30, 50, 70 F : +60 ºC
Type EDL , Electric Double Layer Supercapacitors
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Outline Drawing and Dimensions
Style EN -10 to +60 ºC Surface Mount
Style SD 70 ºC Stacked Coin
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 reow soldering. Peak reow 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 reow solder when the cell voltage is above 0.3 V.
Type EDL , Electric Double Layer Supercapacitors
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Application Function Recommended 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
HW
with Solar Battery
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
Applications and Recommended Series
Type EDL , Electric Double Layer Supercapacitors
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Performance Data
Self-Discharging Characteristics Versus Charging Time
Part number: EDLF105B5R5C (5.5 V 1.0 F) Charge voltage: 5V
Charging Characteristics
Part number: EDLF105B5R5C (5.5 V 1.0 F) @ +20 ºC
Voltage Voltage
30 Ω
100 Ω
Time (h)
Time (m)
Notice and Disclaimer: All product drawings, descriptions, specications, statements, information and data
(collectively, the “Information”) in this datasheet or other publication are subject to change. The customer
is responsible for checking, conrming 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. All Information given
herein is believed to be accurate and reliable, but it is presented without any guarantee, warranty, representation
or responsibility of any kind, expressed or implied. Statements of suitability for certain applications are based
on the knowledge that the Cornell Dubilier company providing such statements (“Cornell Dubilier”) has
of operating conditions that such Cornell Dubilier company regards as typical for such applications, but
are not intended to constitute any guarantee, warranty or representation regarding any such matter – and
Cornell Dubilier specically and expressly disclaims any guarantee, warranty or representation concerning
the suitability for a specic customer application, use, storage, transportation, or operating environment.
The Information is intended for use only by customers who have the requisite experience and capability to
determine the correct products for their application. Any technical advice inferred from this Information or
otherwise provided by Cornell Dubilier with reference to the use of any Cornell Dubilier products is given
gratis (unless otherwise specied by Cornell Dubilier), and Cornell Dubilier assumes no obligation or liability
for the advice given or results obtained. Although Cornell Dubilier strives to apply the most stringent quality
and safety standards regarding the design and manufacturing of its products, in light of the current state
of the art, isolated component failures may still occur. Accordingly, customer applications which require a
high degree of reliability or safety should employ suitable designs or other safeguards (such as installation
of protective circuitry or redundancies or other appropriate protective measures) in order to ensure that the
failure of an electrical component does not result in a risk of personal injury or property damage. Although
all product-related warnings, cautions and notes must be observed, the customer should not assume that all
safety measures are indicated in such warnings, cautions and notes, or that other safety measures may not be
required.
