? coilcraft, inc. 2011 specifications subject to change without notice. please check our website for latest information. smt mini wideband transformers C wbc document 424 -1 document 424-1 revised 02/17/09 impedance insertion pins 4 ? 6 (primary) pins 1 ? 3 (secondary) dc part ratio 2 bandwidth loss max l min 3 dcr max 4 l min 3 dcr max 4 imbalance 5 color number 1 schematic pri : sec (mhz) (db) (h) (mohm) (h) (mohm) max (ma) dot wbc1-1l_ a 1 : 1 0.400 ? 600 0.40 10 120 10 120 ? brown wbc1-1tl_ b 1 : 1 0.250 ? 750 0.58 11 75 11 75 36 brown wbc2-1tl_ b 1 : 2 0.200 ? 500 0.50 10 120 20 150 8.5 red wbc3-1tl_ b 1 : 3 0.300 ? 900 0.60 9 100 27 150 8.5 orange wbc4-1tl_ b 1 : 4 0.250 ? 750 1.0 12 55 48 120 30 yellow wbc4-14l_ b 1 : 4 1.500 ? 1200 2.0 2 50 8 100 15 green wbc4-1wl_ b 1 : 4 0.500 ? 1000 0.90 5 60 20 120 10 white wbc4-6tl_ b 1 : 4 0.300 ? 700 0.65 9 80 36 200 7.5 blue wbc8-1l_ b 1 : 8 0.150 ? 600 0.60 22 120 176 310 17 gray wbc9-1l_ b 1 : 9 0.300 ? 500 0.54 9 80 81 230 5 white wbc16-1tl_ b 1 : 16 0.600 ? 300 0.80 5 60 80 230 5 violet wbc4-4l_ c 1 : 4 0.250 ? 800 1.0 12 60 48 120 30 yellow 6 4 3 1 pri sec 6 4 3 2 1 pri sec 6 5 4 3 2 1 pri sec a b c 1. when ordering, please specify termination and packaging codes: wbc4-4 lc termination: l = rohs compliant tin-silver-copper (95.5/4/0.5) over silver- palladium-platinum special order: s = non-rohs tin-lead (63/37). packaging: c =7 machine-ready reel. eia-481 embossed plastic tape (750 parts per full reel). b = less than full reel. in tape, but not machine ready. to have a leader and trailer added ($25 charge), use code letter c instead. d =13 machine-ready reel. eia-481 embossed plastic tape. factory order only, not stocked (3000 parts per full reel). 2. impedance ratio is for the full primary winding to the full secondary winding. 3. inductance measured at 100 khz, 0.1 v, 0 adc on an agilent/hp 4192 or equivalent. 4. dcr measured on a micro-ohmmeter. 5. dc imbalance is the maximum difference in current measured at pins 1 and 3 with the source at pin 2. inductance drop is 15% at maximum imbalance. 6. electrical specifications at 25c. measurements are referenced to 50 ohms. refer to doc 362 ?soldering surface mount components? before soldering. schematics designer?s kit c393 contains three of each part core material ferrite terminations rohs compliant tin-silver-copper over silver- platinum-glass frit. other terminations available at additional cost. weight 68.0 ? 88.8 mg ambient temperature ?40c to +85c storage temperature component: ?40c to +85c. packaging: ?40c to +80c resistance to soldering heat max three 40 second reflows at +260c, parts cooled to room temperature between cycles moisture sensitivity level (msl) 1 (unlimited floor life at <30c / 85% relative humidity) failures in time (fit) / mean time between failures (mtbf) 60 per billion hours / 16,666,667 hours, calculated per telcordia sr-332 packaging 750/7 reel; 3000/13 reel plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 2.9 mm pocket depth pcb washing only pure water or alcohol recommended ? smallest wideband transformer: 4 mm square 3 mm high ? 300 v interwinding isolation, 1/4 watt rf input power ? 250 ma max current rating.
? coilcraft, inc. 2011 wbc series smt mini wideband transformers specifications subject to change without notice. please check our website for latest information. document 424-2 revised 02/17/09 document 424-2 0.175 4,45 max 0.120 3,05 max 0.120 3,05 0.030 0,76 0.030 0,76 0.040 1,02 0.060 1,52 0.060 1,52 dot indicates pin 1 0.045 1,14 max 0.165 4,19 recommended land pattern 1 1 6 6 2 2 5 5 3 3 4 4 dimensions dimensions are in inches mm
? coilcraft, inc. 2011 wbc series smt mini wideband transformers specifications subject to change without notice. please check our website for latest information. document 424-3 revised 02/17/09 document 424-3 0 1 2 3 4 5 1 0.1 0.01 10 100 10000 1000 attenuation (db) frequency (mhz) wbc1-1 3 db bandwidth: 0.400 ? 600 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 10000 1000 attenuation (db) frequency (mhz) wbc1-1t 3 db bandwidth: 0.250 ? 750 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 10000 1000 attenuation (db) frequency (mhz) wbc2-1t 3 db bandwidth: 0.200 ? 500 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 10000 1000 attenuation (db) frequency (mhz) wbc3-1t 3 db bandwidth: 0.300 ? 900 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 10000 1000 attenuation (db) frequency (mhz) wbc4-1t 3 db bandwidth: 0.250 ? 750 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 10000 1000 attenuation (db) frequency (mhz) wbc4-14 3 db bandwidth: 1.500 ? 1200 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 10000 1000 attenuation (db) frequency (mhz) wbc4-1w 3 db bandwidth: 0.500 ? 1000 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 10000 1000 attenuation (db) frequency (mhz) wbc4-6t 3 db bandwidth: 0.300 ? 700 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 10000 1000 attenuation (db) frequency (mhz) wbc8-1 3 db bandwidth: 0.150 ? 600 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 10000 1000 attenuation (db) frequency (mhz) wbc9-1 3 db bandwidth: 0.300 ? 500 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 10000 1000 attenuation (db) frequency (mhz) wbc16-1t 3 db bandwidth: 0.600 ? 300 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 10000 1000 attenuation (db) frequency (mhz) wbc4-4 3 db bandwidth: 0.250 ? 800 mhz attenuation measured on a network analyzer (re: 50 ohms)
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