Tubular Pi Capacitors As with the feed-through tubular capacitors, the Pi (π) tubular capacitors offered by API’s Spectrum Control brand are small in size, lightweight, nonpolar and offer high dielectric strength. Operating temperatures of -55°C to +125°C are achieved with no voltage de-rating. All capacitors are fired to produce true monolithic structures, which are impervious to moisture and contamination. Outer terminations feature a nickel barrier and a final metal layer, typically silver. Compared to feed-through tubular capacitors, Pi tubular capacitors have a much narrower transition between the pass and stop bands. Pi capacitors are effective in stopping high frequency interference without affecting necessary frequencies immediately below the stop band. Similar to feed-through tubular capacitors, Pi tubular capacitors can be designed with a solid or multilayered configuration. Solid Pi tubular capacitors are more cost effective, but limited in capacitance values. Multilayered Pi tubular capacitors can cover a wider range of capacitance, while still maintaining the mechanical strength of a solid Pi tubular capacitor in a similar case size. Features ■ ■ ■ ■ ■ ■ Solid Electrode "E1" Ground "G " Electrode "E2" Multi-layered Tube Electrode "E 1" Ground "G" Provide filtering of noise content close to signal content Ideal for multi-pin connector applications High ratio of capacitance to volume Low inductance, nonpolar Impervious to moisture and contamination -55°C to +125°C operation Electrode "E 2" Buried electrode tube Insertion Loss Pi Circuit C1 C2 Insertion Loss (db) 80 33000 70 60 10000 4000 50 1000 40 30 C1 + C2 = C Total Inductive Element not included. 310 20 10 100 1 MHz 10 MHz 100 MHz 1GHz Frequency T API TECHNOLOGIES • 8061 Avonia Rd. • Fairview, PA 16415 • Ph: 814-474-1571 • Fax: 814-474-3110 • eis.apitech.com API TECHNOLOGIES’ SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58 CC10 ID Tubular Pi Specifications Length OD Banding Dimensions Center Dimension, min. Tip Dimension, min. Bandwidth, 200 VDC min. Bandwidth, 100 VDC min. Bandwidth, 50 VDC min. (in) OD (in) ID (mm) TCC Length (in) Cap(pF) NP0 X7R Y5V 0.090 ±0.003 0.122 ±0.004 0.050 ±0.002 0.060 ±0.003 0.082 ±0.004 1.27 ±0.05 0.173 ±0.010 4.39 ±0.25 (mm) WV(VDC) 200 100 1.651 mm 0.051 mm 0.635 mm 0.508 mm 0.381 mm 0.081 ±0.002 2.06 ±0.05 (mm) 0.065" 0.002" 0.025" 0.020" 0.015" 2.29 ±0.08 0.235 ±0.010 0.173 ±0.010 5.97 ±0.25 50 200 100 0.235 ±0.010 4.39 ±0.25 50 200 100 1.52 ±0.08 5.97 ±0.25 50 200 100 3.10 ±0.10 0.300 ±0.010 7.62 ±0.25 50 200 100 2.08 ±0.10 0.315 ±0.010 0.250 ±0.010 8.00 ±0.25 50 200 100 50 6.35 ±0.25 200 100 50 10 Max 12 27 33 39 47 56 68 82 100 120 150 180 220 270 180 220 270 330 390 470 560 680 820 1,000 1,200 1,500 1,800 2,200 2,700 3,300 3,900 4,700 5,600 6,800 8,200 10,000 12,000 15,000 1,800 2,200 2,700 3,300 3,900 4,700 5,600 6,800 8,200 10,000 12,000 15,000 18,000 22,000 27,000 KEY: Solid Multi-Layered API TECHNOLOGIES • 8061 Avonia Rd. • Fairview, PA 16415 • Ph: 814-474-1571 • Fax: 814-474-3110 • eis.apitech.com API TECHNOLOGIES’ SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58 CC11 General Tubular Capacitor Information Specialty Tubular Products We offer many variations of tubular capacitors to fit your custom application: • Various OD, ID and length configurations • Square tubes for surface mount applications • Lapped feed-through capacitors • Custom style capability Tubular Electrical Testing Test Method NP0 Temperature Coefficient X7R Temperature Coefficient EIA 198 ±30 ppm/ °C, - 55 to +125°C ±15%, -55 to +125°C Capacitance Tolerance Electrical Parameter Y5V +22, –82%, -30 to +85°C EIA Tolerance Code M, P N, P, Z N, P, Z Capacitance Test @ 25°C MIL-STD-202, Method 305 Cap ≤ 100 pF: 1 MHz, 1 Vrms Cap > 100 pF: 1 KHz, 1 Vrms 1 KHz, 1 Vrms 1 KHz, 1.0 Vms Dissipation Factor @ 25°C MIL-STD-202, Method 305 0.15% Max 3.5% Max 3.5% Max No Aging <2.0% <2.5% Aging Rate (Per Decade) Insulation Resistance @ 25°C MIL-STD-202, Method 302 50 K Megohm or 500 Ohm-Farad, 50 K Megohm or 500 Ohm-Farad, 50 K Megohm or 500 Ohm-Farad, whichever is lower whichever is lower whichever is lower Insulation Resistance @ 125°C MIL-STD-202, Method 302 5 K Megohm or 50 Ohm-Farad, 5 K Megohm or 50 Ohm-Farad, 5 K Megohm or 50 Ohm-Farad, whichever is lower whichever is lower whichever is lower Dielectric Withstanding Voltage MIL-STD-202, Method 301 250% of Rated Voltage, 5 second hold, 30-50 mA 250% of Rated Voltage, 5 second hold, 30-50 mA 250% of Rated Voltage, 5 second hold, 30-50 mA Tubular Part Numbering System After determining the capacitor properties required for a given application, use information from pages AC9-12 and the part numbering system below to place the order. If there are any questions, do not hesitate to contact API’s customer service. Example: I8150173X7R471M I 81 50 173 Voltage Rating Outer Diameter Inner Diameter Length Example: Example: C: FT, 100 VDC 0.081" = 81 0.050" = 50 0.173" = 173 A: FT, 50 VDC E: FT, 200 VDC G: Pi, 50 VDC Example: The part number shown represents a Pi tubular capacitor with an outer diameter of 0.081" and inner diameter of 0.050". The voltage rating for this part is 200 VDC. The ceramic type will be X7R. The capacitance value is 470 pF with a tolerance of ±20%. The termination will be silver and the parts will receive bulk packaging. X7R 471 Ceramic Code EIA Cap Code NP0 Example: X7R 470 pF = 471 Y5V M EIA Cap Tolerance M: ±20% N: ±30% P: +100 -0% Z: +80 -20% H: Pi, 100 VDC I: Pi, 200 VDC API TECHNOLOGIES • 8061 Avonia Rd. • Fairview, PA 16415 • Ph: 814-474-1571 • Fax: 814-474-3110 • eis.apitech.com API TECHNOLOGIES’ SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58 CC12