C21 CL21/CL21X Series Capacitor
Metallized polyester film capacitors designed for DC and VHF signal applications, including blocking, by-pass, and coupling. They are widely used in filter and low pulse circuits. These capacitors feature a non-inductive wound construction with a wide capacitance range, small size, and light weight. They offer good self-healing properties and a long lifespan, with flame-retardant epoxy resin powder coating (UL94/V-0).
Product Attributes
- Brand: Wuxi Walson Electronics Co., Ltd.
- Origin: China
- Material: Metallized polyester film, Flame-retardant epoxy resin powder coating
- Certifications: UL94/V-0
Technical Specifications
| Spec. & Walsons P/N | Capacitance | Tolerance | Rated Voltage (VDC) | Operating Temperature Range | Rated Temperature | Capacitance Range | Capacitance Tolerance | Voltage Proof | Dissipation Factor (1kHz, 1V) | Insulation Resistance (100V, 1min) |
|---|---|---|---|---|---|---|---|---|---|---|
| CL21X-400V-503-P5 C212G50342P20001 | 50nF | 5% | 400 | -40 +105 | 85 | 0.0010 F10.0 F | 5 % (J)10 % (K) | 1.6 UR (20 , 5 s) | 0.0090 (CR1.0 F) 0.0100 (CR1.0 F) | 7500 M (CR0.33 F) 2500 s (CR0.33 F) |
Reliability Test Summary
| No. | Test Item | Test Method | Requirement |
|---|---|---|---|
| 1 | External Check | Visual inspection and caliper measurement | Appearance is regular without visible damage; Mark is regular, clear and correct. |
| 1 | Terminal Strength | Pull: 5 N, Direction: 180 , Time: 101 s | No visible damage |
| 1 | Bending | Pull: 2.5 N, Direction: 90 , Times: 2 | No visible damage |
| 1 | Soldering Heat Resistance | Solder temp: 260 C5 C, Immersion time: 10 s1 s | No visible damage |
| 2 | Solderability | Solder temp: 235 C 5 C, Immersion time: 2.0 s0.5 s | Lead wire surface well tinned, welding layer area 95 % |
| 2 | Rapid Change of Temperature | A=-40 C, B=+125 C, 5 cycles, Duration: 30 min | No visible damage |
| 2 | Vibration | Frequency: 10-500 Hz, Amplitude: 0.75 mm, Duration: 2 h per direction (X, Y, Z) | No visible damage |
| 2 | Bump | Times: 4000, Acceleration: 390 m/s, Pulse duration: 6 ms | No visible damage |
| 3 | Climate Sequence | Dry Heat (+125C, 16h), Damp Heat Cyclic (Db, Severity b), Cold (-40C, 2h) | Appearance no visible damage, marking clear. Capacitance change: |C/C| 5 %, Tan increase: Tan 0.008 (1 kHz), I.R. 50 % of rated value. |
| 4 | Damp Heat Steady State | Temp: +40C2 C, Humidity: 93%2 %RH, Duration: 21 Days | No visible damage. Capacitance change: |C/C| 5 %, Tan change: Tan 0.005 (1 kHz), I.R. 50 % of initial measurement. |
| 5 | Endurance | Temp: +85C2 C, Duration: 1000 hours, Test voltage: 1.25 UR | No visible damage, marking clear. Capacitance change: |C/C| 8 %, Tan change: Tan 0.005 (1 kHz), I.R. 50 % of initial measurement. |
| 6 | Temperature Characteristic | Static method at -40C, +20C, +105C | At -40C: -3.6 % C/C 0. At +105C: 0 C/C +6.3 %. |
| 7 | Charging and Discharging | Times: 10000, Charging voltage: 1.0 UR, Charging time: 0.5 s, Discharging time: 0.5 s | Capacitance change: |C/C| 5 %, Tan change: Tan 0.005 (1 kHz), I.R. 50 % of initial measurement. |
Graphs of Product Characteristics
Temperature Characteristic Curve (Capacitance vs. Temperature, Dissipation Factor vs. Temperature, I.R. vs. Temperature)
Frequency Characteristic Curve (Capacitance vs. Frequency, Dissipation Factor vs. Frequency)
Welding Information
Welding heat can affect capacitor leads and encapsulation. High temperature and prolonged welding can impact performance and lead to failure. Refer to welding chart for conditions.
2511101810_WALSON-C212G50342P20001_C52205126.pdf
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