Product Overview
The 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 also 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 excellent self-healing properties, long life, and are encapsulated in 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
- Certifications: UL94/V-0
Technical Specifications
| Reference Standard | Operating Temperature Range | Rated Temperature | Rated Voltage (VDC) | Capacitance Range | Capacitance Tolerance | Dissipation Factor (1kHz, 1V) | Insulation Resistance (100V, 1min) | Voltage Proof (20, 5s) |
| GB/T 7332-2011 (idt IEC 60384-2) | -40 +105 | 85 | 100/160/250/400/450/630/1000/1250 | 0.0010 F10.0 F | 5 % (J), 10 % (K) | CR1.0 F: 0.0090 CR1.0 F: 0.0100 | CR0.33 F: 7500 M CR0.33 F: 2500 s | 1.6 UR |
Reliability Test
| Test Item | Test Method | Requirement |
| External Check | Visual inspection and caliper measurement | The appearance is regular without visible damage; The mark is regular, clear and correct. |
| Terminal Strength | Pull: 5 N, Direction: 180, Time: 101 s | No visible damage |
| Bending | Pull: 2.5 N, Direction: 90, Times: 2 | No visible damage |
| Soldering Heat Resistance | Solder temperature: 260 C5 C, Immersion time: 10 s1 s | No visible damage |
| Solderability | Solder temperature: 235 C 5 C, Immersion time: 2.0 s0.5 s | The surface of the lead wire is well tinned, and the welding layer area reaches over 95 % |
| Rapid Change of Temperature | A=-40 C, B =+125 C, 5 cycles, Duration: t=30 min | No visible damage |
| Vibration | Frequency range: 10 Hz to 500 Hz, Amplitude: 0.75 mm, Test duration in each direction: 2 h | No visible damage |
| Bump | Times of collisions: 4000 times, Acceleration: 390 m/s, Pulse duration: 6 ms | No visible damage |
| Climate Sequence | Dry Heat +125 , 16 h; Damp Heat Cyclic Test Db, Severity: b, the first cycle; Cold -40 , 2 h; Damp Heat Cyclic Test Db, Severity b, the other cycles | Appearance no visible damage, marking clear. Capacitance change: C/C 5 %, Increase of Tan 0.008(1 kHz), I.R.50 % of the rated value |
| Damp Heat Steady State | Temperature:+402 , Humidity:93 %2 %RH, Duration:21 Days | No visible damage. Capacitance changeC/C 5 %, Tan 0.0051 kHz, I.R.50 % of the rated value |
| Endurance | Temperature: +85 2 , Duration: 1000 h, Test voltage: 1.25 UR | No visible damage, marking clear. Capacitance change: C/C 8 %, Tan 0.0051 kHz, I.R.50 % of the rated value |
| Temperature Characteristic | Static method, capacitor maintained at -40 , +20 , +105 | Characteristics at -40 : -3.6 %C/C0. Characteristics at 105 : 0C/C+6.3 % |
| 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 0.0051 kHz, I.R.50 % of the rated value |
Product Characteristics Graphs
Temperature Characteristic Curve
Capacitance vs. Temperature at 1kHz
Dissipation Factor vs. Temperature at 1kHz
I.R. vs. Temperature
Frequency Characteristic Curve
Capacitance vs. FrequencyRoom Temperature
Dissipation Factor vs. FrequencyRoom Temperature
Welding Information
When welding, heat can impact the capacitor's leads and encapsulation layer. High temperatures and prolonged welding can affect performance and potentially lead to failure. Refer to the welding chart for recommended conditions.
2511101810_WALSON-C212S68342P20001_C52205135.pdf
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