specifcations subject to change without notice. please check our website for latest information. wideband transformers for critical applications wideband transformers document st424-1 revised 03/09/12 impedance insertion pins 1 C 3 (primary) pins 4 C 6 (secondary) dc ratio 2 bandwidth loss max l min 3 dcr max 4 l min 3 dcr max 4 imbalance 5 part number 1 schem. pri : sec (mhz) (db) (h) (mohm) (h) (mohm) max (ma) st458rfw01a1lz a 1 : 1 0.400 C 600 0.40 10 120 10 120 st458rfw01b1lz b 1 : 1 0.250 C 750 0.58 9.5 75 9.5 75 36 st458rfw02b1lz b 1 : 2 0.200 C 500 0.50 10 120 20 150 8.5 st458rfw03b1lz b 1 : 3 0.300 C 900 0.60 9.0 100 27 150 8.5 st458rfw04b1lz b 1 : 4 0.250 C 750 1.0 9.0 55 36 120 30 st458rfw04b2lz b 1 : 4 1.500 C 1200 2.0 2.0 50 8.0 100 15 st458rfw04b3lz b 1 : 4 0.500 C 1000 0.90 5.0 80 20 120 10 st458rfw04b4lz b 1 : 4 0.300 C 700 0.65 9.0 80 36 200 7.5 st458rfw08b1lz b 1 : 8 0.150 C 600 0.60 22 120 176 310 17 st458rfw09b1lz b 1 : 9 0.300 C 500 0.54 9.0 80 81 230 5.0 st458rfw16b1lz b 1 : 16 0.600 C 300 0.80 5.0 80 80 230 5.0 ST458RFW04C1LZ c 1 : 4 0.250 C 800 1.0 9.0 60 36 120 30 6 4 3 1 pr is ec 6 4 3 1 pr is ec 6 5 5 4 3 2 1 pr is ec a b c 1. when ordering, please specify termination and testing codes: ST458RFW04C1LZ termination: l = tin-silver-copper (95.5/4/0.5) over silver palladium-platinum-glass frit. special order: s = tin-lead (63/37) . testing: z = cots h = screening per coilcraft cp -sa-10001 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 4 and 6 with the source at pin 5. 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 core material ferrite terminations tin-silver-copper over silver-platinum-glass frit. other terminations available at additional cost. ambient temperature C40c to +85c storage temperature component: C55c to +85c. tape and reel packaging: C55c 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) 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 miniature wideband transformer: 4 mm square 3 mm high 300 v interwinding isolation, 1/4 watt rf input power 250 ma max current rating 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. 2012
st458rfw wideband transformers for critical applications specifcations subject to change without notice. please check our website for latest information. wideband transformers document st424-2 revised 03/09/12 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 p attern 1 1 6 6 2 2 5 5 3 3 4 4 dimensions dimensions are in inches mm suggested land pattern 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. 2012
st458rfw wideband transformers for critical applications specifcations subject to change without notice. please check our website for latest information. wideband transformers document st424-3 revised 03/09/12 attenuation measured on a network analyzer (re: 50 ohms) 0 1 2 3 4 5 1 0. 1 0.01 10 100 10000 1000 atten uation (db) frequency (mhz) 458fr w01a1 3 db bandwidth: 0.400 ? 600 mhz 0 1 2 3 4 5 1 0. 1 0.01 10 100 10000 1000 atten uation (db) frequency (mhz) 458fr w01b1 3 db bandwidth: 0.250 ? 750 mhz 0 1 2 3 4 5 1 0. 1 0.01 10 100 1000 0 1000 atten uation (db) frequency (mhz) 458fr w08b1 3 db bandwidth: 0.150 ? 600 mhz 0 1 2 3 4 5 1 0. 1 0.01 10 100 10000 1000 atten uation (db) frequency (mhz) 458fr w04b2 3 db bandwidth: 1.500 ? 1200 mhz 0 1 2 3 4 5 1 0. 1 0.01 10 100 1000 0 1000 atten uation (db) frequency (mhz) 458fr w04b4 3 db bandwidth: 0.300 ? 700 mhz 0 1 2 3 4 5 1 0. 1 0.01 10 100 1000 0 1000 atten uation (db) frequency (mhz) 458fr w04c1 3 db bandwidth: 0.250 ? 800 mhz 0 1 2 3 4 5 1 0. 1 0.01 10 100 1000 0 1000 atten uation (db) frequency (mhz) 458fr w04b3 3 db bandwidth: 0.500 ? 1000 mhz 0 1 2 3 4 5 1 0. 1 0.01 10 100 10000 1000 atten uation (db) frequency (mhz) 458fr w04b1 3 db bandwidth: 0.250 ? 750 mhz 0 1 2 3 4 5 1 0. 1 0.01 10 100 1000 0 1000 atten uation (db) frequency (mhz) 458fr w16b1 3 db bandwidth: 0.600 ? 300 mhz 0 1 2 3 4 5 1 0. 1 0.01 10 100 1000 0 1000 atten uation (db) frequency (mhz) 458fr w09b1 3 db bandwidth: 0.300 ? 500 mhz 0 1 2 3 4 5 1 0. 1 0.01 10 100 10000 1000 atten uation (db) frequency (mhz) 458fr w03b1 3 db bandwidth: 0.300 ? 900 mhz 0 1 2 3 4 5 1 0. 1 0.01 10 100 10000 1000 atten uation (db) frequency (mhz) 458fr w02b2 3 db bandwidth: 0.200 ? 500 mhz 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. 2012
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