? coilcraft, inc. 2005 wideband transformers document 425-1 specifications subject to change without notice. document 425-1 revised 11/03/05 these wideband transformers are offered in tapped or untapped configurations in a low-profile dip-style plastic case. they are available in a through-hole version com- patible with standard dip sockets and a surface mount version that is packaged in tape and reel. all parts feature 500 v isolation, 250 ma current handling capability and a 1/4 watt rf power rating. (for a smaller package size, see our wbc series.) applications include impedance matching, voltage or current transformation, dc isolation, balanced/unbalanced mixing, matching, power splitting, coupling and signal inversion. custom wideband transformers with special combinations of impedance ratio, insertion loss, frequency response and current handling are also available. free evaluation samples are available by contacting coilcraft or by visiting www.coilcraft.com. 1. when ordering, please specify packaging code: wb25-1ls d packaging: d =13 machine-ready reel. eia-481 embossed plastic tape (500 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 d instead. 6 4 3 1 2. inductance measured at 100 khz, 0.1 v, 0 adc on an agilent/ hp 4192 or equivalent. 3. dcr measured on a micro-ohmmeter. 4. 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. 5. operating temperature range -40c to +85c. 6. electrical specifications at 25c. 6 5 4 3 2 1 6 4 3 2 1 impedance insertion pins 4 ? 6 pins 1 ? 3 dc part number ratio bandwidth loss max l min 2 dcr max 3 l min 2 dcr max 3 imbalance 4 schematic sm 1 th pri : sec (mhz) (db) (h) (mohm) (h) (mohm) max (ma) wb1-1ls_ wb1-1l 1 : 1 0.150 ? 500 0.70 27 75 27 75 ? wb1-6ls_ wb1-6l 1 : 1 0.100 ? 350 0.50 25 100 25 100 ? wb1.18-3ls_ wb1.18-3l 1 : 1.18 0.040 ? 300 0.50 90 300 108 330 ? wb1.5-6ls_ wb1.5-6l 1 : 1.5 0.050 ? 325 0.26 56 120 84 150 ? wb2-1-2wls_ wb2-1-2wl 1 : 2 0.080 ? 700 1.00 38 100 75 150 ? wb2.5-6ls_ wb2.5-6l 1 : 2.5 0.080 ? 225 0.26 30 100 75 130 ? wb4-6ls_ wb4-6l 1 : 4 0.100 ? 125 0.50 25 100 100 200 ? wb9-1ls_ wb9-1l 1 : 9 0.125 ? 125 0.57 25 100 225 250 ? wb16-1ls_ wb16-1l 1 : 16 0.050 ? 100 0.60 56 75 896 330 ? wb36-1ls_ wb36-1l 1 : 36 0.100 ? 45 0.50 25 50 900 180 ? wb1-1tls_ wb1-1tl 1 : 1 0.100 ? 375 0.51 25 100 25 100 30 wb1-6tls_ wb1-6tl 1 : 1 0.050 ? 200 0.20 70 150 70 150 18 wb2-1tls_ wb2-1tl 1 : 2 0.070 ? 400 1.00 38 100 75 150 29 wb2.5-6tls_ wb2.5-6tl 1 : 2.5 0.050 ? 125 0.28 56 120 140 200 13 wb3-1tls_ wb3-1tl 1 : 3 0.040 ? 500 0.40 96 110 270 200 4.0 wb4-1hls_ wb4-1hl 1 : 4 0.100 ? 500 0.50 25 120 100 160 15 wb4-6tls_ wb4-6tl 1 : 4 0.050 ? 200 0.50 43 120 172 160 5.0 wb5-1tls_ wb5-1tl 1 : 5 0.050 ? 400 0.30 48 220 240 500 13 wb8-1tls_ wb8-1tl 1 : 8 0.150 ? 400 0.76 18 100 144 270 17 wb13-1tls_ wb13-1tl 1 : 13 0.150 ? 125 0.72 17 90 221 200 10 wb16-6tls_ wb16-6tl 1 : 16 0.050 ? 100 0.60 56 75 896 330 25 wbt1-6ls_ wbt1-6l 1 : 1 0.040 ? 200 0.25 70 150 70 150 19 wbt1.5-1ls_ wbt1.5-1l 1 : 1.5 0.040 ? 350 0.30 60 150 90 180 19 wbt2.5-6ls_ wbt2.5-6l 1 : 2.5 0.050 ? 100 0.26 70 150 175 200 11 wbt4-1ls_ wbt4-1l 1 : 3 0.040 ? 150 0.26 45 120 135 160 13 wbt4-1als_ wbt4-1al 1 : 4 0.040 ? 350 0.40 96 110 384 220 3.5 wbt16-1ls_ wbt16-1l 1 : 16 0.100 ? 100 0.50 25 100 400 300 7.5 wbt25-1ls_ wbt25-1l 1 : 25 0.100 ? 65 0.50 25 100 625 350 6.0
? coilcraft, inc. 2005 wideband transformers dimensions C surface mount parts dimensions C through hole parts document 425-2 specifications subject to change without notice. document 425-2 revised 12/29/05 dot indicates pin 1 0.225 5,72 0.100 2,54 0.100 2,54 0.100 2,54 0.30 7,6 max 0.025 0,64 dia typ 1 2 3 6 5 4 typ recommended board layout 0.300 0.010 7,62 0,25 90 -105 0.120 3,05 min dot indicates pin 1 0.325 8,26 max 0.325 8,26 max 0.285 7,24 max 0.285 7,24 max 0.100 2,54 0.025 0,64 0.225 5,72 0.03 0,76 0.06 1,52 0.520 13,2 0.40 10,2 0.10 2,5 0.10 2,5 typ max max recommended land pattern 0.520 0.010 13,21 0,25 0.400 10,16 typ 0.004 /0,10 0.010 0.020 0,25 0,51 typ 1 2 3 6 5 4 terminations: nickel/tin tape and reel: 500/13 reel 24 mm tape width for packaging data see tape and reel specifications section. terminations: nickel/tin packaged 54 per tube.
? coilcraft, inc. 2005 document 425-3 specifications subject to change without notice. document 425-3 revised 11/03/05 transformers with no center taps 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb1-6 3 db bandwidth: 0.100 ? 350 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb1.5-6 3 db bandwidth: 0.050 ? 325 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb2.5-6 3 db bandwidth: 0.080 ? 225 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb4-6 3 db bandwidth: 0.100 ? 125 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb9-1 3 db bandwidth: 0.125 ? 125 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb36-1 3 db bandwidth: 0.100 ? 45 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb1.18-3 3 db bandwidth: 0.040 ? 300 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb2-1-2w 3 db bandwidth: 0.080 ? 700 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb1-1 3 db bandwidth: 0.150 ? 500 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb16-1 3 db bandwidth: 0.150 ? 100 mhz
? coilcraft, inc. 2005 transformers with secondary center tap 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb1-1t 3 db bandwidth: 0.100 ? 375 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb2-1t 3 db bandwidth: 0.070 ? 400 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb1-6t 3 db bandwidth: 0.050 ? 200 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb2.5-6t 3 db bandwidth: 0.050 ? 125 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb4-1h 3 db bandwidth: 0.100 ? 500 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb4-6t 3 db bandwidth: 0.050 ? 200 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb13-1t 3 db bandwidth: 0.150 ? 125 mhz document 425-4 specifications subject to change without notice. document 425-4 revised 11/03/05 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb3-1t 3 db bandwidth: 0.040 ? 500 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb5-1t 3 db bandwidth: 0.050 ? 400 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb8-1t 3 db bandwidth: 0.150 ? 400 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb16-6t 3 db bandwidth: 0.050 ? 100 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wb16-6t 3 db bandwidth: 0.050 ? 100 mhz
? coilcraft, inc. 2005 transformers with primary and secondary center taps 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wbt2.5-6 3 db bandwidth: 0.050 ? 100 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wbt4-1 3 db bandwidth: 0.050 ? 150 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wbt16-1 3 db bandwidth: 0.100 ? 100 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wbt25-1 3 db bandwidth: 0.100 ? 65 mhz document 425-5 specifications subject to change without notice. document 425-5 revised 11/03/05 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wbt1-6 3 db bandwidth: 0.040 ? 200 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wbt1.5-1 3 db bandwidth: 0.040 ? 350 mhz 0 1 2 3 4 5 1 0.1 0.01 10 100 1000 atten uation (db) frequency (mhz) wbt4-1a 3 db bandwidth: 0.040 ? 350 mhz
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