? coilcraft, inc. 2005 specifications subject to change without notice. please check our website for latest information. wideband rf transformers document 116-1 document 116-1 revised 11/20/02 these wideband transformers feature 500 v isolation and a 1/4 watt rf pow er rating. they are offered tapped or untapped and are packaged in a low-profile dip-style plastic case. all parts are available in either a surface mount version or a through-hole version that?s compatible with standard dip sockets. (for a smaller package size and more values, see our ttwb series.) applications include impedance matching, voltage or current transformation, dc isolation, balanced/unbal- anced mixing, matching, power splitting, coupling and signal inversion. custom wideband transformers with special combina- tions of impedance ratio, insertion loss, frequency re- sponse and current handling are also available. 1. for a smaller package size and more values, see the ttwb series. 2. inductance tested at 100 khz, 0.1 vrms, 0 adc. 3. 500 vrms isolation, primary to secondary 4. 1/4 watt rf power rating 5. operating temperature range ?40c to +85c. 6. electrical specifications at 25c. 3 1 6 5 4 6 5 4 3 2 1 6 4 3 1 impedance pins 1?3 pins 6?4 part number part number 1 ratio i dc max frequency l min 2 dcr max l min 2 dcr max schematic (through-hole) (surface mount) pri:sec (ma) (mhz) (h) (ohms) (h) (ohms) wb1010-pc wb1010-sm 1:1 250 0.005 ? 100 780 0.320 780 0.320 wb1010-1-pc wb1010-1-sm 1:1 250 0.04 ? 175 95 0.200 95 0.200 wb1015-pc wb1015-sm 1.5:1 250 0.1 ? 150 80 0.145 51 0.130 wb1040-pc wb1040-sm 4:1 250 0.2 ? 300 95 0.160 25 0.115 wb2010-pc WB2010-SM 1:1 250 0.005 ? 100 780 0.320 780 0.320 wb2010-1-pc wb2010-1-sm 1:1 250 0.04 ? 175 95 0.200 95 0.200 wb2040-pc wb2040-sm 4:1 250 0.2 ? 300 95 0.160 25 0.115 wb3010-pc wb3010-sm 1:1 250 0.005 ? 100 780 0.320 780 0.320 wb3010-1-pc wb3010-1-sm 1:1 250 0.04 ? 175 95 0.200 95 0.200 wb3015-pc wb3015-sm 1.5:1 250 0.1 ? 150 80 0.145 51 0.130 wb3040-pc wb3040-sm 4:1 250 0.2 ? 300 95 0.160 25 0.115
? coilcraft, inc. 2005 wideband rf transformers specifications subject to change without notice. please check our website for latest information. document 116-2 document 116-2 revised 11/17/04 dot over pin #1 dot over pin #1 0.300 0.010 7,62 0,25 0.300 0.010 7,62 0,25 0.225 5,72 0.100 2,54 0.025 0,64 0.225 5,72 0.100 2,54 0.010 0.020 0,25 0,51 0.30 7,6 0.03 0,76 0.06 1,52 0.520 13,2 0.40 10,2 0.100 2,54 0.10 2,5 0.100 2,54 0.10 2,5 max 0.025 0,64 dia typ typ for wb10xx, pins 2 and 5 are removed during manufacture. for wb20xx, pin 2 is removed during manufacture. max max 1 2 3 1 2 3 6 5 4 6 5 4 typ typ recommended land pattern recommended board layout 0.260 0.010 6,60 0,25 0.520 0.010 13,21 0,25 0.300 0.010 7,62 0,25 0.260 0.010 6,60 0,25 0.400 10,16 typ 90 -105 0.120 3,05 min 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 0.001 0.01 0.01 0.01 0.01 0.10 0.10 0.10 0.10 1.0 01.0 1.0 1.0 10 10 10 10 100 100 100 100 1000 1000 1000 frequency (mhz) frequency (mhz) frequency (mhz) frequency (mhz) dbm atten uation dbm atten uation dbm atten uation dbm atten uation wb1010, wb2010, wb3010 wb1010-1, wb2010-1, wb3010-1 wb1015, wb3015 wb1040, wb2040, wb3040 3 db bandwidth 0.005 ? 100 mhz 3 db bandwidth 0.04 175 mhz ? 3 db bandwidth 0.1 150 mhz ? 3 db bandwidth 0.2 300 mhz ? 0 5 10 15 2.5 5 10 20 50 100 200 i dc (ma) dbm atten uation 0.300 mhz 1.0 mhz 10 m h z typical attenuation vs current typical frequency response tape and reel for surface mount parts: 500/13 reel 24 mm tape width for packaging data see tape and reel specifications section.
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