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Shenzhen Yukun Technology Co., Ltd

Contact: Mr. Wang

Wob: 13530372041

Tel: 0755-26607151

Email: Jim@sznovelty.cn

Web: en.szsyky.cn

Add: Fudali 302, No. 8, Shuitian Hongxing Road, Bao'an District, Shenzhen

Yukun supercapacitor

Yukun supercapacitor

  • Cname:Solid Electrolytic Capacitors
  • Views:Times
  • Release date:2023-02-03 16:12:40
  • Content
  • Features
  • Parameter

Product introduction:

        Yukun supercapacitor, also known as electrochemical capacitor, double-layer capacitor, gold capacitor and farad capacitor, is an electrochemical element developed from the 1970s and 1980s to store energy through polarized electrolyte. It is different from the traditional chemical power supply. It is a power supply with special performance between the traditional capacitor and the battery. It mainly depends on the double electric layer and the redox pseudo-capacitor charge to store electric energy. However, there is no chemical reaction in the process of energy storage, which is reversible, because the supercapacitor can charge and discharge hundreds of thousands of times repeatedly.

Series specification table:

series name

 series

type name

YKY-2R7

Rated voltage VR

2.7V

surge voltage

2.85V

Capacity range

1F-12F

Operating temperature range

-40℃~+70℃

Product life

Normal temperature cycle life: 25°C, 500,000 cycles between VR and 1/2VR , capacity decay ≤30%, internal resistance change ≤4 times

High temperature durability life: temperature maintain VR , 1000 hours, capacity attenuation ≤ 30%, internal resistance change ≤ 4 times

Product performance table:

model

Voltage V

Capacity F

AC internal resistance mΩ1KHz

24h leakage current uA

Product size mm

Diameter D

length H

Pitch P

YKY-2R7-J254VYJ05

2.7

1

300

10

8

13

3.5

YKY-2R7-J205VYJ08

2.7

2

200

20

8

16

3.5

YKY-2R7-J205VYJ07

2.7

2

130

20

8

20

3.5

YKY-2R7-J205VYJ13

2.7

2

120

20

10

20

5

YKY-2R7-J335TYJ07

2.7

3.3

120

33

8

20

3.5

YKY-2R7-J335VYJ13

2.7

3.3

70

33

10

20

5

YKY-2R7-J475VYJ09

2.7

4.7

60

47

12.5

21

5

YKY-2R7-J705VYJ05

2.7

7

80

70

10

20

5

YKY-2R7-J705VYJ13

2.7

7

80

70

8

30

3.5

YKY-2R7-J805VYJ09

2.7

8

50

80

12.5

21

5

YKY-2R7-J106VYJ11

2.7

10

50

100

10

25

5

YKY-2R7-J106VYJ10

2.7

10

80

100

12.5

25

5

YKY-2R7-J106VYJ09

2.7

10

55

100

12.5

21

5

YKY-2R7-J126VYJ09

2.7

12

40

120

12.5

21

5

Product Size:

Yukun Technology

2.7V4.7F-1.jpg

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product application:

1) Portable equipment: notebook computer, video camera, PDA, digital camera, portable DVD, etc

2) Household appliances: two-way radios, walkie talkies, electric toys, electric bicycles, emergency lighting

3) Military equipment

4) Medical treatment

5) Electric tools

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testing method:

capacity

1 Constant current discharge method

(1) Measurement circuit

image.png

                     Figure 1 - Constant Current Discharge Method Circuit


2 Measurement method

◎ The DC voltage of the constant current/constant voltage source is set to the rated voltage (UR ) .

◎ Set the constant current value of the constant current charging and discharging device specified in Table 1.

◎ Switch the switch S to the DC power supply, and charge it with constant voltage for 30 minutes after the constant current/constant voltage source reaches the rated voltage.

◎ After charging, switch the switch S to a constant current discharge device to discharge with a constant current.

◎ Measure the time t1 and t2 of the voltage across the capacitor from U1 to U2, as shown in Figure 2, and calculate the capacitance value according to the following equation : 

image.png

Figure 2 Terminal voltage characteristics of capacitors

image.png

in

C capacity (F);

I discharge current (A);

U1  measures the initial voltage (V) ;

U 2  measures the termination voltage (V);

t 1  Time (s) for the discharge voltage to reach U1;

t 2   Time (s) for the discharge voltage to reach U2.

See Table 1 for the discharge current I and the voltages U1 and U2 at which the discharge voltage drops .

                           

3 Equipment: A, ARBIN supercapacitor test system B, linear DC stabilized power supply C, constant current discharge device D, voltage recorder

Internal resistance

Test method: AC impedance method

Measurement circuit

The measurement circuit shown is tested.

image.png

           Figure 3 - AC Impedance Method Circuit

Measurement methods

The internal resistance Ra of the capacitor should be calculated by the following formula:

image.png

in

Ra AC internal resistance (Ω);

U RMS value of AC voltage (V rms);

I AC current rms value (V rms).

The frequency at which the voltage is measured, should be 1kHz.

The AC current should be 1mA to 10mA.



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