EDLHW506D2R3R Cornell Dubilier Electronics (CDE), EDLHW506D2R3R Datasheet - Page 6
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EDLHW506D2R3R
Manufacturer Part Number
EDLHW506D2R3R
Description
CAP DOUBLE LAYER 50F 2.3V RAD
Manufacturer
Cornell Dubilier Electronics (CDE)
Series
EDLr
Datasheet
1.EDLSD223H5R5C.pdf
(8 pages)
Specifications of EDLHW506D2R3R
Capacitance
50F
Voltage - Rated
2.3V
Esr (equivalent Series Resistance)
100.0 mOhm
Lifetime @ Temp.
1000 Hrs @ 85°C
Mounting Type
Through Hole
Package / Case
Radial, Can
Lead Spacing
0.295" (7.50mm)
Height
1.575" (40.00mm)
Size / Dimension
0.709" Dia (18.00mm)
Operating Temperature
-25°C ~ 85°C
Voltage Rating
2.3 Volts
Esr
0.1 Ohms
Operating Temperature Range
- 25 C to + 85 C
Dimensions
18 mm Dia. x 40 mm L
Product
Super Capacitors
Capacitor Mounting
Through Hole
Termination Type
Radial Leaded
Rohs Compliant
Yes
Capacitor Terminals
Radial Leaded
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Tolerance
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
EDLHW506D2R3R
Manufacturer:
ELNA
Quantity:
460 000
How to Select an Electric Double Layer Supercapacitor
Estimated initial back-up time
Back-up time for Type EDL Electric Double Layer Supercapacitors decreases with use and over time
especially when the current is large or operating 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 follow-
ing 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[V
C = 1.0 F–20% = 0.8 F, R=50 Ω, V
Therefore,
t = 0.8 (5–0.0005–2) ⁄ (10+2) ⁄ 10
And thus the initial back-up time is 55 hours. After 1000 hours,
Life Design for Electric Double Layer Supercapacitors
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:
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 • www.cde.com
SG, SD, NF
Expected Life = (Lifetime)•(Temperature Factor)•(Voltage Factor)•(Moisture Factor)
Series
HW
EN
F
0
–(i
•
R)–V
0.047 F
200 µA
200 µA
1
] ⁄ (i+i
–
–
L
)
–6
0
= 55 hours
=5 V. V
0.1 F to 0.33 F
300 µA
300 µA
10 µA
–
1
Maximum Operating (Discharge) Current
=2 V, i=10 µA
0.47 F to 1.5 F
100 mA
300 µA
1 mA
–
t: Back-up time (s)
C: Capacitance of Type EDL (F)
V
V
i: Current during back-up (A)
i
R: Internal resistance (Ω) at 1 kHz
L
: Leakage current (A)
0
1
: Applied voltage (V)
: Cut-off voltage (V)
3.3 F to 4.7 F
300 mA
–
–
–
10 F to 50 F
1 A
–
–
–