Polyester capacitor CL21 474J250V capacitor for sell

Description

Polyester capacitor CL21 474J250V capacitor for sell

The polyester capacitor CL21 can withstand higher temperatures, but will change with the temperature, and this type of capacitor is not suitable for high-frequency circuits.

Features:

The metallized polyester film is used as the medium and electrode, and the unidirectional lead is encapsulated with flame retardant insulating material. It has excellent electrical performance, good reliability, high temperature resistance, small size, large capacity and good self-healing performance.

Characteristic of 474J 250V Film Capacitor

ltem	Characteristics
Reference standard	GB7332 (IEC 60384-2)
Climatic Category	40/85/21
Rated Voltage	250V
Capacitance	470nf
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 474J 250V Film Capacitor

CL21 474J 250V Film Capacitor
W: 19.5mm
H: 14.0mm
T: 7.0mm
P±1: 15.0mm

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.