Product Overview
The C21/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. 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: Wuxi, Jiangsu, China
- Material: Metallized polyester film, Flame-retardant epoxy resin
- Certifications: UL94/V-0 (for coating)
- Series: C21/CL21X
Technical Specifications
| Reference Standard | Operating Temperature Range | Rated Temperature | Rated Voltage (VDC) | Capacitance Range | Capacitance Tolerance | Dissipation Factor (max) | Insulation Resistance (min) |
| GB/T 7332-2011 (idt IEC 60384-2) | -40 +105 | 85 (+85 to +105 decreasing factor 1.25 % per for UR) | 100/160/250/400/450/630/1000/1250 | 0.0010 F10.0 F | 5 % (J), 10 % (K) | 0.0090 (CR1.0 F) 0.0100 (CR1.0 F) | 7500 M (CR0.33 F) 2500 s (CR0.33 F) |
Reliability Test Summary
| Test Item | Test Method | Requirement |
| External Check | Visual inspection, caliper measurement | Appearance regular, no visible damage; mark regular, clear, correct. |
| Terminal Strength | Pull: 5 N, Direction: 180, Time: 101 s; Bend: 2.5 N, Direction: 90, Times: 2 | No visible damage. |
| Soldering Heat Resistance | Solder temp: +260 5 , Immersion time: 10 s1 s | No visible damage. |
| Solderability | Solder temp: 235 5 , Immersion time: 2.0 s0.5 s | Lead surface well tinned, welding layer area 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, Duration per direction: 2 h (X,Y,Z) | No visible damage. |
| Bump | Times: 4000, Acceleration: 390 m/S, Pulse duration: 6 ms | No visible damage. |
| Climate Sequence | Dry Heat (+125 , 16 h), Damp Heat Cyclic (Db, Severity b), Cold (-40 , 2 h), Damp Heat Cyclic (Db, Severity b) | Appearance no visible damage, marking clear. Capacitance change: |C/C| 5%, Tan increase 0.008 (1 kHz), I.R. 50% of rated value. |
| Damp Heat Steady State | Temp: +40 2 , Humidity: 93%2%RH, Duration: 21 Days | No visible damage. Capacitance change |C/C| 5%, Tan change 0.005 (1 kHz), I.R. 50% of rated value. |
| Endurance | Temp: +85 2 , Duration: 1000 h, Test voltage: 1.25 UR | No visible damage, marking clear. Capacitance change: |C/C| 8%, Tan change 0.005 (1 kHz), I.R. 50% of rated value. |
| Temperature Characteristic | Static method at -40, 20, 105 | At -40: -3.6% C/C 0. At 105: 0 C/C +6.3%. |
| Charging and Discharging | Times: 10000, Charging voltage: 1.0 UR, Charging/Discharging time: 0.5 s | Capacitance change: |C/C| 5%, Tan change 0.005 (1 kHz), I.R. 50% of rated value. |
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-C212S47342P20001_C52205134.pdf
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible
