High-Voltage Types, Specifications, Mica Capacitors Type 271 MOUNTING STYLE 0 Type 273 MOUNTING STYLE 1 MOUNTING STYLE 2 TOLERANCES UNLESS OTHERWISE SPECIFIED: ±.031 Type 272 Cast-Case Styles MOUNTING STYLE 0 MOUNTING STYLE 1 MOUNTING STYLE 2 Type 291 High-Voltage & Pulse Mica Capacitors Type 292 MOUNTING STYLE 0 MOUNTING STYLE 1 MOUNTING STYLE 2 Type 293 MOUNTING STYLE 0 4.030 MOUNTING STYLE 0 MOUNTING STYLE 1 MOUNTING STYLE 2 MOUNTING STYLE 1 MOUNTING STYLE 2 Type 294 MOUNTING STYLE 1 MOUNTING STYLE 2 MOUNTING STYLE 0 140 Technology Place Liberty, SC 29657 (864) 843-2277, Fax (864) 843-3800 http://www.cornell-dubilier.com E-mail: [email protected] CORNELL DUBILIER Your Source For Capacitor Solutions High-Voltage Types, Specifications, Mica Capacitors Type 272 (CM 71) Type 273 Type 291 (CM 76) Type 292 (CM 81) Type 293 (CM 86) Type 294 (CM 91) Type G5 (CM 95) High-Voltage & Pulse Mica Capacitors Type 271 (CM 66) CORNELL DUBILIER Your Source For Capacitor Solutions 140 Technology Place Liberty, SC 29657 (864) 843-2277, Fax (864) 843-3800 http://www.cornell-dubilier.com E-mail: [email protected] 4.031 High-Voltage Types, Specificaations, Mica Capacitors Potted-Case Styles Type F1 (available in same ratings as 271) Type F2 (available in same ratings as 272) Type F3 (available in same ratings as 273) ⁄64 ± 1⁄64 DIA –3 HOLES 17 41⁄32 ± 1⁄32 d –2 HOLES 27⁄16 ± 1⁄64 1.625 ± .005 T ± ⁄64 1 AMPS KC VOLTS MFD W ± 1⁄32 D ± .005 L ± 1⁄32 THREAD 1 ⁄4-28 NF-2A THREAD 5 ⁄16 ± 1⁄32 3.562 ± .005 31⁄16 ± 1⁄32 17⁄16 ± 1⁄64 S ± 1⁄64 ⁄16 ± 1⁄32 5 315⁄16 MAX H ± 1⁄16 215⁄16 ± 1⁄32 h ± 1⁄32 t ± 1⁄32 ⁄8 ± 1⁄32 3 Type G1 (available in same ratings as 291) Type G2 (available in same ratings as 292) Type G3 (available in same ratings as 293) Type G4 (available in same ratings as 294) Type G5 (ratings from 50 pF, 35,000 Vpk to 10,000 pF, 15,000 Vpk) ⁄32 ± 1⁄64 DIA 13 D ± 1⁄64 d + 1⁄64 –.00 NAMEPLATE 1 ± 1⁄64 DIA 4 ± 1⁄64 R 33⁄8 ± 1⁄16 R High-Voltage & Pulse Mica Capacitors T ± 1⁄16 10 ± 1⁄16 ⁄2 ± ⁄32 1 1 L ± 1⁄16 H ± 1⁄16 t ± 1⁄32 Type F1 F2 F3 G1 G2 G3 G4 G5 4.032 L 2.813 3.109 4.031 3.813 5 6.5 6.5 9 H 1.969 2.25 3.938 2.5 3 4 5.75 10 T .938 1.25 2.438 2.813 3.5 5 5 6.75 t .25 .375 .375 .25 .25 .375 .375 .5 h 1.469 1.75 2.938 W 2.031 2.281 3.063 d(min.) .150 .187 .266 .266 .266 .375 .375 .406 140 Technology Place Liberty, SC 29657 (864) 843-2277, Fax (864) 843-3800 http://www.cornell-dubilier.com E-mail: [email protected] D 2.375 2.625 3.562 3.25 4.25 5.75 5.75 S 1.5 1.625 1.438 Thread 8-32 NC-2A 10-32 NF-2A 1 /4-28 NF-2A CORNELL DUBILIER Your Source For Capacitor Solutions High-Voltage Types, Specifications, Mica Capacitors Specifications Capacitance is within tolerance when measured at these frequencies: 1–1000 pF @ 1 MHz > 1000 pF @ 1 kHz Dissipation Factor is typically less than 0.05% when measured as above. Dissipation factor (DF) equals 2πfRC, where f is the test frequency, R is the equivalent series resistance (Ω), and C is nominal capacitance (F). Q is the reciprocal of the dissipation factor. Case Insulation: Capacitor cases will withstand, without damage, arcing or breakdown, a 60-Hz peak ac potential equal to twice the rated peak voltage applied between the terminals connected together and a metal electrode touching the case. Apply this potential for between 1 and 5 seconds. Current Ratings at various frequencies are in the listings and apply under the following conditions: Temperature: 65°C maximum Derating Factor: None Temperature Cycling Test Conditions Steps Temp. (°C) –55 + 0 –3 25 +10 –5 125 + 3 –0 25 +10 –5 1 2 3 4 Interval (Minutes) 30 10 to 15 30 10 to 15 Immersion Test Conditions • Number of cycles: 2 • Duration of each immersion: 15 Operating Temperature minutes Range is –55°C to +125°C. Vibration: Capacitors will withstand vibrational forces occurring Insulation Resistance is no at rates of from 10 to 55 Hz for 41⁄2 less than 7500 MΩ when measured at 100 Vdc. Temperature Coefficient and Capacitance Drift: Measure the capacitors’ capacitance at 25°C, 55°C, 25°C, 125°C, and at 25°C after stabilizing at each temperature. The capacitance will meet the limits of the Characteristic table shown in Ordering Information. Withstanding Voltage: Capacitors will withstand application of an ac potential between terminals having an rms value equal to the rated peak voltage at a frequency of 100 Hz or less without damage, arcing or breakdown. Apply the potential by raising the voltage from zero to the specified value. Apply the full potential for a minimum of 5 seconds. CORNELL DUBILIER Your Source For Capacitor Solutions Temperature and Immersion Cycling: Capacitors will withstand the temperature and immersion cycles indicated in the tables below. Follow three temperature cycles by two immersion cycles. Make the measurements listed below no more than 30 minutes following the final immersion cycle: Withstanding Voltage: As specified under Withstanding Voltage. Insulation Resistance: No less than 7500 MΩ. Capacitance: Change not to exceed 4% of the nominal value or one picofarad, whichever is greater. 140 Technology Place Liberty, SC 29657 (864) 843-2277, Fax (864) 843-3800 http://www.cornell-dubilier.com E-mail: [email protected] Life Test: Subject all capacitors to a temperature of 55°C for 48 hours. Then subject units cast in rectangular cases (Types 271, 272, and 273) to a 60-Hz rms voltage equal to the rated peak voltage for 250 hours. Subject units cast in cylindrical cases (Types 291, 292, 293, and 294) to a 60-Hz rms voltage equal to 90% of the rated peak voltage for 250 hours. In both tests, maintain the temperature at 125°C. After test, the capacitors will meet these requirements: Withstanding Voltage: As specified under Withstanding Voltage. Insulation Resistance: No less than 7500 MΩ. Capacitance Change: Within the limits given in the table below or one picofarad, whichever is greater. Characteristic B C D E Maximum Cap. Change ±8% ±3% ±3% ±3% In addition, the capacitor must show no visual damage and the markings must be legible. 4.033 High-Voltage & Pulse Mica Capacitors Rated Peak Voltage is not to be exceeded in actual use. Voltage ratings are in the listings and apply under the following conditions: Temperature: Within the specified operating temperature range. Altitude: Up to 50,000 feet or 3.4 inches of mercury. Relative Humidity: Up to 80%. Frequency: As specified. Where pulse conditions are encountered, contact us. hours. The total excursion during vibration is 0.06 inches. At the end of this period, make the following inspections and tests: Visual and Mechanical Inspection: No perceptible deterioration. Withstanding Voltage: As specified under Withstanding Voltage. Insulation Resistance: No less than 7500 MΩ. Capacitance Change: Not to exceed 3% of the nominal value or one picofarad, whichever is greater. • Immersion bath: Saturated solution of sodium chloride and water +5 • Temp. of hot bath: 65 –0 +10 • Temp. of cold bath: 25 –5