EEF-WA1D470P Panasonic - ECG, EEF-WA1D470P Datasheet - Page 17

• Manufacturer Part Number: EEF-WA1D470P
• Description: CAP 47UF 20V SPEC POLYMER SMD
• Manufacturer: Panasonic - ECG
• Series: SP-Cap WAr

Specifications of EEF-WA1D470P

• Capacitance: 47µF
• Voltage Rating: 20V
• Tolerance: ±20%
• Lifetime @ Temp.: 2000 Hrs @ 105°C
• Operating Temperature: -55°C ~ 105°C
• Features: Polymer
• Ripple Current: 2A
• Esr (equivalent Series Resistance): 50.0 mOhm
• Mounting Type: Surface Mount
• Package / Case: Radial, Can - SMD
• Size / Dimension: 0.315" Dia (8.00mm)
• Height: 0.276" (7.00mm)
• Surface Mount Land Size: 0.327" L x 0.327" W (8.30mm x 8.30mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Spacing: -
• Other names: EEFWA1D470P; PCE2149TR

Specialty Polymer Aluminum Electrolytic Capacitors (V type WA series)
Design, Specifications are subject to change without notice.
about safety comes up with this product, please contact us immediately for engineering assistance without fail. Specifications are typical and may not apply to all applications.
5. Circuit Type
Application Guidelines
1. Polarity
2. Voltage
3. Temperature
4. Ripple Current
Frequency correction factor
of capacitor before use.
If reverse voltage is applied to the capacitor, it not only causes a short in the
circuit, but also damages the capacitor.
Design your circuit to eliminate the possibility of reverse voltage conditions.
However, if you expect that reverse voltages may occur anyhow, please inform the factory.
and may damage the capacitor due to internal heating.
Do not connect capacitors in series for higher voltage use.Short-circuit may happen when
over-voltage is applied.
Also do not design circuit where peak voltage exceeds the rated voltage.When large amount
amount of current gose through due to sudden quick charge and discharge,short-circuit may
happen or leakage current may increase.So,when rush current exceeds 10A and the rush
current is 10 times higher than ripple current of the capacitor,put either protective resistor or
protective circuit for the capacitor.
Operation at temperatures exceeding specifications causes large changes in the capacitor's
electrical properties, and deterioration that can potentially lead to failure.
When calculating the operating temperature of the capacitor, be sure to include not only the
ambient temperature and internal temperature of the unit, but also radiation from heat
generating
Excessive ripple current results in high internal heat generation, causing capacitor failure.
Make sure that the sum of the DC voltage and the peak value of the induced voltage by
allowable ripple current does not exceed the rated voltage.
Even when using the capacitor under the permissible ripple current, a reverse voltage may
occur if the DC bias voltage is low.
Ripple current must be corrected for frequency. Use the frequency correction factor given below.
Do not use the capacitor in time-constant or coupling circuits. In these types of circuit,
electrical characteristics such as capacitance can change under certain environmental
conditions.
elements inside the unit (power transistors, resistors, etc.), and self-heating due to ripple
current.
Do not apply ripple current exceeding the capacitor's specified value.
The specialty polymer capacitor has polarity, so be sure to verify the orientation
Do not apply over voltages exceeding the rated voltage.Doing so increases leakage current
Use at or under the rated(guaranteed) temperature.
(Sine-wave current, Ambient temperature: Room temperature to 105°C)
Frequency correction factor
Electrolytic Capacitor Product Specification
Frequency (kHz)
LCR Device Company Capacitor Business Unit
Matsushita Electronic Components Co., Ltd.
Contact your nearest Panasonic sales office for the latest specifications prior to purchase and/or use.
0.25
1
0.6
10
100
1.0
300
1.0
500
1.0
WA-E-0016
Whenever any doubt
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