Document 425-1 Wideband Transformers • • • • Surface mount and through hole versions 500 V interwinding isolation, 1/4 Watt RF input power 250 mA max current rating. For a smaller package size, see our WBC Series Core material Ferrite Terminations RoHS compliant matte tin over nickel over copper. Other terminations available at additional cost. Weight 0.38 – 0.40 g Ambient temperature –40°C to +85°C Storage temperature Component: –40°C to +85°C. Packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 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 (SM version): 500 per 13″ reel; Plastic tape: 24 mm wide, 0.42 mm thick, 20 mm pocket spacing, 6.6 mm pocket depth; (TH version): 54 per tube PCB washing Only pure water or alcohol recommended Dimensions – surface mount parts 0.325 max 8,26 Dimensions – through hole parts 0.325 max 8,26 0.285 max 7,24 Dot indicates pin 1 Dot indicates pin 1 0.225 max 5,72 0.225 max 5,72 0.100 typ 2,54 0.004 /0,10 0.400 typ 10,16 0.025max 0,64 0.40 10,2 1 2 3 inches mm 0.100 typ 2,54 0.520 ±0.010 13,21 ±0,25 0.06 1,52 Dimensions are in 0.285 max 7,24 0.03 0,76 0.120 min 3,05 90 °-105 ° 0.010 × 0.020 typ 0,25 × 0,51 0.300 ±0.010 7,62 ±0,25 0.520 13,2 0.10 2,5 0.10 2,5 Recommended Land Pattern 0.30 7,6 0.100 2,54 0.100 2,54 6 5 6 2 5 3 4 4 0.025 dia typ 0,64 Dimensions are in inches mm Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 1 Recommended Board Layout Document 425-1 Revised 10/30/08 Document 425-2 Wideband Transformers Part number SM1 TH Schematic 6 1 4 3 6 1 2 4 3 6 1 5 2 4 3 WB1-1SL_ WB1-6SL_ WB1.18-3SL_ WB1.5-6SL_ WB2-1-2WSL_ WB2.5-6SL_ WB4-6SL_ WB9-1SL_ WB16-1SL_ WB36-1SL_ WB1-1TSL_ WB1-6TSL_ WB2-1TSL_ WB2.5-6TSL_ WB3-1TSL_ WB4-1HSL_ WB4-6TSL_ WB5-1TSL_ WB8-1TSL_ WB13-1TSL_ WB16-6TSL_ WBT1-6SL_ WBT1.5-1SL_ WBT2.5-6SL_ WBT4-1SL_ WBT4-1ASL_ WBT16-1SL_ WBT25-1SL_ WB1-1L WB1-6L WB1.18-3L WB1.5-6L WB2-1-2WL WB2.5-6L WB4-6L WB9-1L WB16-1L WB36-1L WB1-1TL WB1-6TL WB2-1TL WB2.5-6TL WB3-1TL WB4-1HL WB4-6TL WB5-1TL WB8-1TL WB13-1TL WB16-6TL WBT1-6L WBT1.5-1L WBT2.5-6L WBT4-1L WBT4-1AL WBT16-1L WBT25-1L Impedance ratio2 pri : sec Bandwidth (MHz) Insertion loss max (dB) 1:1 1:1 1 : 1.18 1 : 1.5 1:2 1 : 2.5 1:4 1:9 1 : 16 1 : 36 1:1 1:1 1:2 1 : 2.5 1:3 1:4 1:4 1:5 1:8 1 : 13 1 : 16 1:1 1 : 1.5 1 : 2.5 1:3 1:4 1 : 16 1 : 25 0.150 – 500 0.100 – 350 0.040 – 300 0.050 – 325 0.080 – 700 0.080 – 225 0.100 – 125 0.125 – 125 0.050 – 100 0.100 – 45 0.100 – 375 0.050 – 200 0.070 – 400 0.050 – 125 0.040 – 500 0.100 – 500 0.050 – 200 0.050 – 400 0.150 – 400 0.150 – 125 0.050 – 100 0.040 – 200 0.040 – 350 0.050 – 100 0.040 – 150 0.040 – 350 0.100 – 100 0.100 – 65 0.70 0.50 0.50 0.26 1.00 0.26 0.50 0.57 0.60 0.50 0.51 0.20 1.00 0.28 0.40 0.50 0.50 0.30 0.76 0.72 0.60 0.25 0.30 0.26 0.26 0.40 0.50 0.50 1. When ordering, please specify packaging code: WB25-1SLD 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. 2. Impedance ratio is for the full primary winding to the full secondary winding. Pins 4 – 6 L min3 DCR max4 (µH) (mOhm) 27 25 90 56 38 30 25 25 56 25 25 70 38 56 96 25 43 48 18 17 56 70 60 70 45 96 25 25 75 100 300 120 100 100 100 100 75 50 100 150 100 120 110 120 120 220 100 90 75 150 150 150 120 110 100 100 27 25 108 84 75 75 100 225 896 900 25 70 75 140 270 100 172 240 144 221 896 70 90 175 135 384 400 625 75 100 330 150 150 130 200 250 330 180 100 150 150 200 200 160 160 500 270 200 330 150 180 200 160 220 300 350 DC imbalance5 max (mA) — — — — — — — — — — 30 18 29 13 4.0 15 5.0 13 17 10 25 19 19 11 13 3.5 7.5 6.0 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 max imbalance. 6. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Pins 1 – 3 L min3 DCR max4 (µH) (mOhm) Document 425-2 Revised 10/30/08 Document 425-3 0 Attenuation (dB) Attenuation (dB) Transformers with no center taps 1 2 3 WB1-1 3 dB bandwidth: 0.150 – 500 MHz 4 5 0.01 0.1 1 10 100 0 1 2 3 WB2.5-6 3 dB bandwidth: 0.080 – 225 MHz 4 5 1000 0.01 0.1 1 0 1 2 3 WB1-6 3 dB bandwidth: 0.100 – 350 MHz 4 5 0.01 0.1 1 10 100 2 3 WB4-6 3 dB bandwidth: 0.100 – 125 MHz 4 5 0.01 0.1 1 Attenuation (dB) Attenuation (dB) 2 WB1.18-3 3 dB bandwidth: 0.040 – 300 MHz 5 0.1 1 10 100 2 3 WB9-1 3 dB bandwidth: 0.125 – 125 MHz 4 5 0.01 0.1 1 Attenuation (dB) Attenuation (dB) 2 WB1.5-6 3 dB bandwidth: 0.050 – 325 MHz 5 0.1 1 10 100 2 3 WB16-1 3 dB bandwidth: 0.150 – 100 MHz 4 5 0.01 0.1 Attenuation (dB) Attenuation (dB) 2 WB2-1-2W 3 dB bandwidth: 0.080 – 700 MHz 5 0.1 1 10 1 10 100 1000 100 1000 Frequency (MHz) 0 0.01 1000 0 1000 1 4 100 1 Frequency (MHz) 3 10 Frequency (MHz) 0 0.01 1000 0 1000 1 4 100 1 Frequency (MHz) 3 10 Frequency (MHz) 0 0.01 1000 0 1000 1 3 100 1 Frequency (MHz) 4 10 Frequency (MHz) Attenuation (dB) Attenuation (dB) Frequency (MHz) 100 1000 0 1 2 3 WB36-1 3 dB bandwidth: 0.100 – 45 MHz 4 5 0.01 0.1 Frequency (MHz) 1 10 Frequency (MHz) Attenuation measured on a network analyzer (re: 50 Ohms) Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 425-3 Revised 05/22/08 Document 425-4 0 Attenuation (dB) Attenuation (dB) Transformers with secondary center tap 1 2 3 WB1-1T 3 dB bandwidth: 0.100 – 375 MHz 4 5 0.01 0.1 1 10 100 0 1 2 3 WB4-6T 3 dB bandwidth: 0.050 – 200 MHz 4 5 1000 0.01 0.1 1 0 1 2 3 WB1-6T 3 dB bandwidth: 0.050 – 200 MHz 4 5 0.01 0.1 1 10 100 2 3 WB5-1T 3 dB bandwidth: 0.050 – 400 MHz 4 5 0.01 0.1 1 Attenuation (dB) Attenuation (dB) 2 WB2-1T 3 dB bandwidth: 0.070 – 400 MHz 5 0.1 1 10 100 2 3 WB8-1T 3 dB bandwidth: 0.150 – 400 MHz 4 5 0.01 0.1 1 Attenuation (dB) Attenuation (dB) 2 WB2.5-6T 3 dB bandwidth: 0.050 – 125 MHz 5 0.1 1 10 100 2 3 WB13-1T 3 dB bandwidth: 0.150 – 125 MHz 4 5 0.01 0.1 1 Attenuation (dB) Attenuation (dB) 2 WB3-1T 3 dB bandwidth: 0.040 – 500 MHz 5 0.1 1 10 100 1000 100 1000 0 1 2 3 WB16-6T 3 dB bandwidth: 0.050 – 100 MHz 4 5 0.01 0.1 Frequency (MHz) Attenuation (dB) 10 Frequency (MHz) 0 0.01 1000 0 1000 1 4 100 1 Frequency (MHz) 3 10 Frequency (MHz) 0 0.01 1000 0 1000 1 4 100 1 Frequency (MHz) 3 10 Frequency (MHz) 0 0.01 1000 0 1000 1 3 100 1 Frequency (MHz) 4 10 Frequency (MHz) Attenuation (dB) Attenuation (dB) Frequency (MHz) 1 10 100 1000 Frequency (MHz) 0 1 2 3 WB4-1H 3 dB bandwidth: 0.100 – 500 MHz 4 5 0.01 0.1 1 10 100 1000 Frequency (MHz) Attenuation measured on a network analyzer (re: 50 Ohms) Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 425-4 Revised 05/22/08 Document 425-5 0 Attenuation (dB) Attenuation (dB) Transformers with primary and secondary center taps 1 2 3 WBT1-6 3 dB bandwidth: 0.040 – 200 MHz 4 5 0.01 0.1 1 10 100 0 1 2 3 WBT4-1A 3 dB bandwidth: 0.040 – 350 MHz 4 5 1000 0.01 0.1 1 0 1 2 3 WBT1.5-1 3 dB bandwidth: 0.040 – 350 MHz 4 5 0.01 0.1 1 10 100 2 3 WBT16-1 3 dB bandwidth: 0.100 – 100 MHz 4 5 0.01 0.1 Attenuation (dB) Attenuation (dB) 2 WBT2.5-6 3 dB bandwidth: 0.050 – 100 MHz 5 0.1 1 10 10 100 1000 100 1000 100 1000 0 1 2 3 WBT25-1 3 dB bandwidth: 0.100 – 65 MHz 4 5 0.01 0.1 Frequency (MHz) Attenuation (dB) 1 Frequency (MHz) 0 0.01 1000 0 1000 1 3 100 1 Frequency (MHz) 4 10 Frequency (MHz) Attenuation (dB) Attenuation (dB) Frequency (MHz) 1 10 Frequency (MHz) 0 1 2 3 WBT4-1 3 dB bandwidth: 0.050 – 150 MHz 4 5 0.01 0.1 1 10 100 1000 Frequency (MHz) Attenuation measured on a network analyzer (re: 50 Ohms) Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 425-5 Revised 05/22/08