Filter Installation Threaded Style Filters Filter Thread Size Maximum Mounting Torque Mounting Hole Dia. Drill Size in-lbs Nm (in) (mm) English 4-40 1.5 0.170 0.120 3.05 # 31 Metric (mm) 3.10 6-40 3 0.339 0.147 3.73 # 26 3.75 6-32 3 0.339 0.147 3.73 # 26 3.75 8-32 4 0.452 0.173 4.39 # 17 4.40 10-32 4 0.452 0.190 4.83 #8 5.10 12-28 6 0.678 0.228 5.79 #1 5.80 12-32 6 0.678 0.228 5.79 #1 5.80 1/4-28 * 7 0.791 0.261 6.63 #G 6.70 5/16-24 * 7 0.791 0.323 8.20 #P 8.25 5/16-32 7 0.791 0.323 8.20 #P 8.25 3/8-32 9 1.017 0.386 9.80 #W 9.90 Note: For 5/8-24 and 7/16-28 please refer to the specific instruction noted on part drawings or see page LP22 of the catalog. ■ ■ ■ Exceeding recommended mounting torque may result in damage to the capacitor within the filter due to possible twisting or elongation of the case. For product without hex surfaces do not hold the filter with pliers or other gripping tools. Pressure exerted on the filter case may crack the ceramic capacitor element. Proper use of filters requires that the filter case be adequately grounded to form an effective path for the interference. Solder-in Style Filters ■ ■ ■ ■ ■ A controlled temperature profile not exceeding 6°F (3°C) per second is recommended when soldering filters. When soldering to terminals of a filter, a heat sink should always be used adjacent to the body of the filter. 60-40 solder is recommended for installation of the filter into the chassis as well as soldering to the terminals. If a filter style without an eyelet is being soldered into a chassis, iron processes should be avoided and the recommended solder alloy is 60-38-2. Installation hole size for a solder-in filter should be 0.003-0.005" over the maximum tolerance of the minor diameter of the mounting portion of the eyelet with a ±0.002" tolerance. Machine/oven soldering 385-415°F (195-210°C) using a dwell and cycle time fast enough to reflow the solder and ramped to maintain less than 6°F/sec rate of change. 1/4-28 with .200 (5.08) Flats 5/16-24 with .250 (6.35) Flats .210 ± .003 (5.33 ± .076) .260 ± .003 (6.60 ± .076) * Recommended mounting hole size for threads with flats ■ .260 ± .003 (6.60 ± .076) .320 ± .003 (8.13 ± .076) Dimensions in inches (mm) For iron soldering to filter body, preheat components at 250-300°F (120-150°C), solder iron is recommended to be set at 500-550°F (260-290°C). The dwell on the solder joint should be less than 5 seconds.The time is dependent on the heat sinking provided by the chassis so a longer preheat may be required. Soldering to Filter Terminals ■ ■ ■ ■ ■ ■ ■ Use a temperature controlled soldering iron with tip temperature of 525 ± 10°F (275 ± 5°C). Use an SN 63 RMA flux core solder. Make mechanical wire connection. Use heat sink next to filter body where possible. Clean soldering iron tip. Clip end of solder (remove 0.5") to expose flux for soldering. Apply soldering iron to wire/flag junction at wetted solder tip region of iron (Wetted Bridge Method). Immediately apply solder. Dwell time for soldering iron tip on product should be 3-5 seconds maximum. 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 CF6