C21 CL21/CL21X Series Capacitor
The C21 CL21/CL21X Series Capacitor is a metallized polyester film capacitor designed for DC and VHF signal applications, including blocking, by-pass, and coupling. It is widely used in filter and low pulse circuits. This series features a non-inductive wound construction with a wide capacitance range, small size, and light weight. The capacitors are known for their self-healing properties and long life, encapsulated in flame-retardant epoxy resin powder coating (UL94/V-0).
Product Attributes
- Brand: Wuxi Walson Electronics Co., Ltd.
- Product Name: Metallized polyester film capacitors
- Series: C21 CL21/CL21X
- Material: Metallized polyester film, Flame-retardant epoxy resin
- Origin: Wuxi, China
- Certifications: UL94/V-0 (for encapsulation)
Technical Specifications
| Type & Spec. | Walsons P/N | Capacitance | Tolerance | Rated Voltage (VDC) | Operating Temp. Range | Dissipation Factor (max) | Insulation Resistance (min) | Reference Standard |
|---|---|---|---|---|---|---|---|---|
| CL21X-100V-122-P5 | C212A12270P20001 | 1.2 F | 5% | 100 | -40 +105 | 0.0090 (CR1.0 F) | 7500 M (CR0.33 F) | GB/T 7332-2011 (idt IEC 60384-2) |
| General | - | 0.0010 F10.0 F | 5 % (J), 10 % (K) | 100/160/250/400/450/630/1000/1250 | -40 +105 | 0.0100 (CR1.0 F) | 2500 s (CR0.33 F) | - |
Reliability Test Summary
| Test Item | Test Method | Requirement |
|---|---|---|
| Outline check | Visual inspection and caliper measurement | Appearance is regular without visible damage; mark is regular, clear and correct. |
| Terminal Strength | Pull: 5 N, Direction: 180, Time: 101 s | No visible damage. |
| Bend | Pull: 2.5 N, Direction: 90, Times: 2 | No visible damage. |
| Soldering Heat Resistance | Solder temp: 2605 , Immersion time: 101 s | No visible damage. |
| Solderability | Solder temp: 2355 , Immersion time: 2.00.5 s | Lead surface well tinned, welding layer area over 95%. |
| Rapid Change of Temperature | A=-40 , B=+125 , 5 cycles, Duration: 30 min | No visible damage. |
| Vibration | Frequency: 10-500 Hz, Amplitude: 0.75 mm, 2 h per direction (X, Y, Z) | No visible damage. |
| Bump | 4000 times, Acceleration: 390 m/S, Pulse duration: 6 ms | No visible damage. |
| Climate Sequence (Dry Heat, Damp Heat Cyclic, Cold) | As per standard | No visible damage, legible marking. Capacitance change: |C/C|5%, Tan increase: Tan 0.008 (1 kHz), I.R.50% of rated value. |
| Damp Heat Steady State | +402 , 932 %RH, 21 Days | No visible damage. Capacitance change: |C/C|5%, Tan change: Tan 0.005 (1 kHz), I.R.50% of rated value. |
| Endurance | +852 , 1000 h, applied voltage: 1.25 UR | No visible damage, legible marking. Capacitance change: |C/C|8%, Tan change: Tan 0.005 (1 kHz), I.R.50% of rated value. |
| Temperature Characteristic | Static method at -40, +20, +105 | At -40: -3.6%C/C0. At +105: 0C/C+6.3%. |
| Charging and Discharging | 10000 cycles, 1.0 UR charging voltage | No visible damage. Capacitance change: |C/C|5%, Tan change: Tan 0.005 (1 kHz), I.R.50% of rated value. |
Product Characteristics Graphs
Graphs for Temperature Characteristic Curve (Capacitance vs. Temperature, Dissipation Factor vs. Temperature, I.R. vs. Temperature) and Frequency Characteristic Curve (Capacitance vs. Frequency, Dissipation Factor vs. Frequency) are provided, comparing Polyester Film and Polypropylene Film.
Welding Information
Caution is advised regarding the impact of heat, high temperature, and prolonged welding on capacitor leads and encapsulation layers, which can affect performance and potentially cause failure. Refer to the welding chart for recommended conditions.
2511101810_WALSON-C212A12270P20001_C52205050.pdf
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