CL21 polyester film capacitor 475J400V factory wholesale

Description

CL21 polyester film capacitor 475J400V

CL21 polyester film capacitor 475J400V is often used in DC and pulse circuits, and is widely used in filtering, blocking, bypass coupling, and noise reduction of various electronic and electrical industrial equipment.

Characteristic of 475J400V Film Capacitor

ltem	Characteristics
Reference standard	GB7332 (IEC 60384-2)
Climatic Category	40/85/21
Rated Voltage	400V
Capacitance	4.7UF
Capacitance Tolerance	±5%(J)
Voltage proof	1.6UR (2S)
Dissipation Factor	≤0.01 (20°C, 1KHz)
Insulation Resistance ≥7500MΩ	20°C，1min

Size of CL21 475J 400V Film Capacitor

CL21 475J 400V Film Capacitor
W: 33.0mm
H: 27.5mm
T: 17.5mm
P±1: 27.5mm

FAQ

Q:Film capacitors have been wave soldered, lead-free soldered, about 200 degrees? High temperature can easily damage the capacitor or affect the life. Don’t know how this industry is controlled and handled? Is manual welding required? Is there a temperature limit in the capacitor specifications? Is the solder joint temperature or body temperature when labeling?

A：Hello, the temperature of the wave soldering peak of the film capacitor can be 275 ° C, which is also the temperature of the IEC standard, and the tin immersion time is 3S-5S. The other is the preheating temperature and time. Film capacitors can withstand this temperature. Does not affect electrical characteristics. The solderability temperature and soldering heat resistance temperature are stated in the specification approval book. The former is aimed at the solderability of capacitor pins, while the latter is about the influence of welding temperature on the characteristics of film capacitors.

Q: How to judge the quality of the film capacitor?

A: 1) Use a multimeter to test the resistance of the thin-film electricity. The two feet should be very high resistance. If there is a capacitance meter, measure whether the capacitance value matches the mark on the case.

2) Test performance at room temperature, including capacity, loss, insulation resistance, withstand voltage, ESR, etc.

3) Do simulated life test.