specifcations subject to change without notice. please check our website for latest information. 1. when ordering, specify tolerance, termination and testing codes: st394rat10 glz tolerance: g = 2% j = 5% termination: l = rohs compliant tin-silver over copper. special order: t = rohs tin-silver-copper (95.5/4/0.5) or s = non-rohs tin-lead (63/37). testing: z = cots h = screening per coilcraft cp-sa-10001 2. inductance measured at 800 mhz on an agilent/hp 4286a or equiva - lent with a coilcraft smd-a test fxture and correlation. 3. q measured at 800 mhz on an agilent/hp 4291a or equivalent with a 16193a test fxture or equivalent. 4. srf measured on an agilent/hp 8753es or equivalent with a coilcraft ccf1268 test fxture. parts with srf >5 ghz are verifed to >5 ghz in screening. 5. dcr measured on a keithley 580 micro-ohmmeter or equivalent. 6. electrical specifcations at 25c. refer to doc 362 soldering surface mount components before soldering. air core inductors document st163-1 revised 10/24/11 srf dcr l 2 percent q 3 min 4 max 5 imax part number 1 turns (nh) tol min (ghz) (mohm) (a) st350rat1n7klz 2 1.65 10 100 10 4.0 1.6 st350rat2n6jlz 3 2.55 5 100 8.2 5.0 1.6 st350rat3n9_lz 4 3.85 5,2 100 7.5 6.0 1.6 st350rat5n4_lz 5 5.40 5,2 100 7.0 8.0 1.6 st394rat5n6_lz 6 5.60 5,2 100 6.5 9.0 1.6 st394rat7n2_lz 7 7.15 5,2 100 6.0 10 1.6 st394rat8n8_lz 8 8.80 5,2 100 6.0 12 1.6 st394rat9n9_lz 9 9.85 5,2 100 5.2 13 1.6 st394rat13n_lz 10 12.55 5,2 100 4.6 14 1.6 air core inductors for critical applications st350rat st394rat high q over a wide range of frequencies acrylic jacket provides a fat top for pick and place solder coated leads ensure reliable soldering terminations tin-silver over copper. other terminations available at additional cost. ambient temperature C40c to +125c with imax current, +125c to +145c with derated current storage temperature component: C40c to +140c. tape and reel packaging: C40c to +80c resistance to soldering heat max three 40 second refows at +260c, parts cooled to room temperature between cycles temperature coeffcient of inductance (tcl) +5 to +70 ppm/c moisture sensitivity level (msl) 1 (unlimited foor life at <30c / 85% relative humidity) packaging st350rat: 500 per 7 reel plastic tape: 8 mm wide, 0.3 mm thick, 4 mm pocket spacing, 1.5 mm pocket depth st394rat: 500 per 7 reel plastic tape: 12 mm wide, 0.3 mm thick, 4 mm pocket spacing, 1.6 mm pocket depth dimensions are in inches mm suggested land patterns 1102 silv er lak e road car y il 60013 phone fa x 800-981-0363 847-639-1508 e-mail we b cps@coilcraft.com www .coilcraft-cps .com ? ? coilcraft, inc. 2011
specifcations subject to change without notice. please check our website for latest information. air core inductors document st163-2 revised 10/24/11 st350rat / st394rat air core inductors l vs frequency C st350rat series l vs frequency C st394rat series q vs frequency C st350rat series q vs frequency C st394rat series typical current derating 0 2 4 6 8 10 12 14 100 1000 frequency (mhz) inductance (nh) 3.85 nh 2.55 nh 1.65 nh 5.40 nh 0 2 4 6 8 10 12 14 100 1000 frequency (mhz) inductance (nh) 12.55 nh 9.85 nh 8.80 nh 7.15 nh 5.60 nh 0 50 100 150 200 250 100 1000 frequency (mhz) q factor 1.65 nh 2.55 nh 3.85 nh 5.40 nh 0 50 100 150 200 250 100 1000 frequency (mhz) q factor 7.15 nh 12.55 nh 8.80 nh 5.60 nh 9.85 nh -40 -20 02 04 06 08 0 100 140 120 ambient temperature (c) 120 110 100 90 80 70 60 50 40 30 20 10 0 pe r cent of rated rms i 25c 1102 silv er lak e road car y il 60013 phone fa x 800-981-0363 847-639-1508 e-mail we b cps@coilcraft.com www .coilcraft-cps .com ? ? coilcraft, inc. 2011
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