Product Overview
This document specifies the requirements for MEF: Metallized Polyester Film Capacitors (CL21 powder-packed type) manufactured by Dongguan City Keya Electronics Technology Co., Ltd. These capacitors are designed for general-purpose applications and are suitable for use within their specified electrical and environmental ratings. The document details product dimensions, coding, usage guidelines, and comprehensive technical specifications.
Product Attributes
- Brand: CHIEFCON ()
- Origin: Dongguan City, China
- Material: Metallized Polyester Film (MEF)
- Certifications: UL V-0 (for Epoxy Resin and Plastic Case)
- Manufacturer: Dongguan City Keya Electronics Technology Co., Ltd.
Technical Specifications
| ITEM | DESCRIPTION | SPECIFICATION |
| SCOPE | This specification applies to Keya's requirements | MEF: Metallized Polyester Film Capacitors (CL21 powder-packed type) |
| STANDARD ATMOSPHERIC CONDITIONS FOR MEASUREMENTS | Ambient Temperature | 15 to 35 (if doubt, +20 5) |
| Relative Humidity | 45% to 75% (if doubt, 60% to 70%) | |
| Air Pressure | 86 kPa to 106 kPa | |
| OPERATING TEMPERATURE RANGE | Continuous operation at rated voltage | -40 to +110 |
| CONSTRUCTION | Dielectric | Metallized Polyester Film |
| Metal Spray | Special Solder | |
| Lead Wire | Tinned Copper-clad Steel Wire | |
| Epoxy Resin | UL V-0 Flame Retardant | |
| Plastic Case | UL V-0 Flame Retardant | |
| MARKING | Manufacturer's Symbol | "KYET ELECTRONICS CO., LTD" |
| Type or Material | "PE" stands for "Metallized Polypropylene Film" | |
| Capacitor Class | "CL21" stands for "MEF" class | |
| Nominal Capacitance | Expressed in 3-digit (EIA) code | |
| Tolerance | J (5%), K (10%), M (20%) | |
| Rated Voltage | 100, 250, 400, 450, 630 VDC | |
| Operating Temperature Range | -40110 | |
| Dissipation Factor (Max) | 1% (at 1KHz, 25) | |
| Insulation Resistance (IR) | CR0.33F: IR10000M; CR0.33F: IR5000M/F (UR100V) | |
| ELECTRICAL CHARACTERISTICS | Withstand Voltage (Between Terminals) | 1.5*Ur (DC) for 60 sec. (no abnormality) |
| Withstand Voltage (Between Terminals & Enclosure) | 2*Ur+500V for 2 to 5 sec. Min. 600VDC (no abnormality) | |
| Dissipation Factor (DF) | 1.0(1%) at 1 KHz | |
| Capacitance (CAP) | Within the tolerance specified (at +20 5) | |
| Insulation Resistance (I.R.) | 10,000 Mohm (C0.33uf); 5,000 Mohm*uF/C (C>0.33uf) (Vt=100 VDC, Charge Time: 605 sec.) | |
| MECHANICAL CHARACTERISTICS | Terminal Strength (Tensile Strength) | Apply 1.0Kg for 10 1 sec. to the terminal in the axial direction (no abnormality) |
| ENDURANCE CHARACTERISTICS | Temperature Cycle | 5 cycles (conditions specified in document) |
| Capacitance Change Rate (C/C) after Temp. Cycle | Within 5% | |
| Dissipation Factor after Temp. Cycle | 1.0 (1%) max. @ 1KHz | |
| Insulation Resistance after Temp. Cycle | 50% of the limit value | |
| Dry Heat Resistance | +100 2 for 16 1 hrs. | |
| Capacitance Change Rate after Dry Heat | Within 5% | |
| Dissipation Factor after Dry Heat | 1.0 (1%) max. @ 1KHz | |
| Insulation Resistance after Dry Heat | 50% of the limit value | |
| Cold Resistance | -40 3 for 2 1 hrs. | |
| Capacitance Change Rate after Cold | Within 5% | |
| Dissipation Factor after Cold | 1.0 (1%) max. @ 1KHz | |
| Insulation Resistance after Cold | 50% of the limit value | |
| Damp Heat | +40 2, 90% to 95% R.H. for 2 1 hrs. | |
| Capacitance Change Rate after Damp Heat | Within 5% | |
| Dissipation Factor after Damp Heat | 1.0 (1%) max. @ 1KHz | |
| Insulation Resistance after Damp Heat | 50% of the limit value |
2504101957_KYET-PE105J2A0502_C390070.pdf
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