mini wideband transformers C wbc document 424 -1 document 424-1 revised 07/01/15 impedance insertion pins 4 C 6 (primary) pins 1 C 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 C 600 0.40 10 120 10 120 brown wbc1-1tl_ b 1 : 1 0.250 C 750 0.58 9.5 75 9.5 75 36 brown wbc2-1tl_ b 1 : 2 0.200 C 500 0.50 10 120 20 150 8.5 red wbc3-1tl_ b 1 : 3 0.300 C 900 0.60 9 100 27 150 8.5 orange wbc4-1tl_ b 1 : 4 0.250 C 750 1.0 9 55 36 120 30 yellow wbc4-14l_ b 1 : 4 1.500 C 1200 2.0 2 50 8 100 15 green wbc4-1wl_ b 1 : 4 0.500 C 1000 0.90 5 80 20 120 10 white wbc4-6tl_ b 1 : 4 0.300 C 700 0.65 9 80 36 200 7.5 blue wbc8-1l_ d 1 : 8 0.150 C 600 0.60 22 120 176 310 17 gray wbc9-1l_ b 1 : 9 0.300 C 500 0.54 9 80 81 230 5 white wbc16-1tl_ b 1 : 16 0.600 C 300 0.80 5 80 80 230 5 violet wbc4-4l_ c 1 : 4 0.250 C 800 1.0 9 60 36 120 30 yellow 6 4 3 1 pr i sec 66 44 33 22 11 pr ip ri sec sec 6 5 4 3 2 1 pr i sec a b 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 (2500 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 specifcations at 25c. measurements are referenced to 50 ohms. refer to doc 362 soldering surface mount components before soldering. schematics designers kit c393 contains three of each part core material ferrite terminations rohs compliant tin-silver-copper over silver-plati - num-glass frit. other terminations available at additional cost. weight 68.0 C 88.8 mg ambient temperature C40c to +85c storage temperature component: C40c to +85c. 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 moisture sensitivity level (msl) 1 (unlimited foor 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; 2500/13 reel plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 2.9 mm pocket depth pcb washing tested to mil-std-202 method 215 plus an additional aqueous wash. see doc787_pcbt_washing.pdf . ? smallest wideband transformer: 4 mm square 3 mm high ? 300 vrms interwinding isolation, 1/4 watt rf input power ? 250 ma max current rating. c d
document 424-2 revised 07/01/15 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 0.150 3,81 0.150 3,81 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 p attern 1 1 6 6 2 2 5 5 3 3 4 4 * * nominal dimensions of the substrate * dimensions dimensions are in inches mm wbc series smt mini wideband transformers
document 424-3 revised 07/01/15 document 424-3 attenuation measured on a network analyzer (re: 50 ohms) 5 4 3 2 1 0 0.01 0.1 1 10 100 1000 attenuation (db ) db degrees f requenc y (mhz) -6 -3 -12 -9 -15 3 6 9 0 0 -1 -2 -3 -4 -5 1 2 3 4 5 15 12 0.01 p hase imbalance magnitude imbalance 0.1 1 10 100 1000 10000 10000 f requenc y (mhz) wbc1-1l wbc1-1l 3 db bandwidth: 0.400 C 600 mhz 0.01 0.1 1 10 100 1000 db degrees f requenc y (mhz) -6 -3 -12 -9 -15 3 6 9 0 0 -1 -2 -3 -4 -5 1 2 3 4 5 15 12 0.01 p hase imbalance magnitude imbalance 0.1 1 10 100 1000 10000 10000 f requenc y (mhz) wbc1-1tl wbc1-1tl 3 db bandwidth: 0.250 C 750 mhz 5 4 3 2 1 0 attenuation (db ) 1 1 1 1 1 1 db degrees f requenc y (mhz) -6 -3 -12 -9 -15 3 6 9 0 0 -1 -2 -3 -4 -5 1 2 3 4 5 15 12 0.01 p hase imbalance magnitude imbalance 0.1 1 10 100 1000 10000 10000 f requenc y (mhz) wbc2-1tl wbc2-1tl 3 db bandwidth: 0.200 C 500 mhz 5 4 3 2 1 0 attenuation (db ) 1 1 1 1 1 1 db degrees f requenc y (mhz) -6 -3 -12 -9 -15 3 6 9 0 0 -1 -2 -3 -4 -5 1 2 3 4 5 15 12 0.01 p hase imbalance magnitude imbalance 0.1 1 10 100 1000 10000 10000 f requenc y (mhz) wbc3-1tl wbc3-1tl 3 db bandwidth: 0.300 C 900 mhz 5 4 3 2 1 0 attenuation (db ) wbc series smt mini wideband transformers
document 424-4 revised 07/01/15 document 424-4 0.01 0.1 1 10 100 1000 db degrees f requenc y (mhz) -6 -3 -12 -9 -15 3 6 9 0 0 -1 -2 -3 -4 -5 1 2 3 4 5 15 12 0.01 p hase imbalance magnitude imbalance 0.1 1 10 100 1000 10000 10000 f requenc y (mhz) wbc4-1tl wbc4-1tl 3 db bandwidth: 0.250 C 750 mhz 5 4 3 2 1 0 attenuation (db ) attenuation measured on a network analyzer (re: ohms) 1 1 1 1 1 1 db degrees f requenc y (mhz) -6 -3 -12 -9 -15 3 6 9 0 0 -1 -2 -3 -4 -5 1 2 3 4 5 15 12 0.01 p hase imbalance magnitude imbalance 0.1 1 10 100 1000 10000 10000 f requenc y (mhz) wbc4-14l wbc4-14l 3 db bandwidth: 1.50 C 1 200 mhz 5 4 3 2 1 0 attenuation (db ) 1 1 1 1 1 1 db degrees f requenc y (mhz) -6 -3 -12 -9 -15 3 6 9 0 0 -1 -2 -3 -4 -5 1 2 3 4 5 15 12 0.01 p hase imbalance magnitude imbalance 0.1 1 10 100 1000 10000 10000 f requenc y (mhz) wbc4-1wl wbc4-1wl 3 db b andwidth: 0.500 C 1 000 mhz 5 4 3 2 1 0 attenuation (db ) 1 1 1 1 1 1 db degrees f requenc y (mhz) -6 -3 -12 -9 -15 3 6 9 0 0 -1 -2 -3 -4 -5 1 2 3 4 5 15 12 0.01 p hase imbalance magnitude imbalance 0.1 1 10 100 1000 10000 10000 f requenc y (mhz) wbc4-6tl wbc4-6tl 3 db bandwidth: 0.300 C 700 mhz 5 4 3 2 1 0 attenuation (db ) wbc series smt mini wideband transformers
document 424-5 revised 07/01/15 document 424-5 0.01 0.1 1 10 100 1000 db degrees f requenc y (mhz) -6 -3 -12 -9 -15 3 6 9 0 0 -1 -2 -3 -4 -5 1 2 3 4 5 15 12 0.01 p hase imbalance magnitude imbalance 0.1 1 10 100 1000 10000 10000 f requenc y (mhz) wbc8-1l wbc8-1l 3 db bandwidth: 0.150 C 600 mhz 5 4 3 2 1 0 attenuation (db ) attenuation measured on a network analyzer (re: ohms) 1 1 1 1 1 1 db degrees f requenc y (mhz) -6 -3 -12 -9 -15 3 6 9 0 0 -1 -2 -3 -4 -5 1 2 3 4 5 15 12 0.01 p hase imbalance magnitude imbalance 0.1 1 10 100 1000 10000 10000 f requenc y (mhz) wbc9-1l wbc9-1l 3 db b andwidth: 0.300 C 500 mhz 5 4 3 2 1 0 attenuation (db ) 1 1 1 1 1 1 db degrees f requenc y (mhz) -6 -3 -12 -9 -15 3 6 9 0 0 -1 -2 -3 -4 -5 1 2 3 4 5 15 12 0.01 p hase imbalance magnitude imbalance 0.1 1 10 100 1000 10000 10000 f requenc y (mhz) wbc16-1tl wbc16-1tl 3 db bandwidth: 0.600 C 300 mhz 5 4 3 2 1 0 attenuation (db ) 1 1 1 1 1 1 db degrees f requenc y (mhz) -6 -3 -12 -9 -15 3 6 9 0 0 -1 -2 -3 -4 -5 1 2 3 4 5 15 12 0.01 p hase imbalance magnitude imbalance 0.1 1 10 100 1000 10000 10000 f requenc y (mhz) wbc4-4l wbc4-4l 3 db bandwidth: 0.250 C 800 mhz 5 4 3 2 1 0 attenuation (db ) wbc series smt mini wideband transformers
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