Document 425-1 Wideband Transformers • Surface mount and through hole versions • 500 Vrms, 1 minute 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 phos bronze. 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. Tape and reel or tube 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): 70 per tube PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. Dimensions – surface mount parts Dot indicates pin #1 WBxxxx Part number XXXX Y Internal code 0.325 max 8,26 Dimensions – through hole parts Dot indicates pin #1 Part number XXXX Y Internal code 0.004 /0,10 0.100 typ 2,54 0.400 typ 10,16 0.025max 0,64 inches mm 0.100 typ 2,54 0.520 ±0.010 13,21 ±0,25 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 0.551 14,0 0.394 10,0 0.06 1,52 Dimensions are in 0.285 max 7,24 0.225 max 5,72 0.225 max 5,72 0.021 typ 0,53 Parts manufactured prior to August 2015 may be marked differently. 0.325 max 8,26 0.285 max 7,24 Dot indicates pin 1 WBxxxx 0.30 7,6 1 6 2 5 3 4 Recommended Land Pattern 0.100 2,54 0.100 2,54 0.10 2,5 0.10 2,5 1 6 2 5 3 4 0.025 dia typ 0,64 Dimensions are in inches mm Recommended Board Layout Document 425-1 Revised 04/27/12 Document 425-2 Wideband Transformers Part number Schematic SM1 TH 6 Pri 1 3 4 6 Sec Pri Sec 1 2 3 4 6 Pri Sec 1 5 2 4 3 Impedance Insertion Pri (pins 4 – 6) Sec (pins 1 – 3)DC ratio2 Bandwidth loss max L min3 DCR max4 L min3 DCR max4 imbalance5 pri : sec (MHz) (dB) (µH)(mOhm) (µH)(mOhm) max (mA) WB1-1SL_WB1-1L 1 : 1 WB1-6SL_WB1-6L 1 : 1 WB1.18-3SL_WB1.18-3L 1 : 1.18 WB1.5-6SL_WB1.5-6L 1 : 1.5 WB2-1-2WSL_WB2-1-2WL 1 : 2 WB2.5-6SL_WB2.5-6L 1 : 2.5 WB4-6SL_WB4-6L 1 : 4 WB9-1SL_WB9-1L 1 : 9 WB16-1SL_WB16-1L 1 : 16 WB36-1SL_WB36-1L 1 : 36 WB1-1TSL_WB1-1TL 1 : 1 WB1-6TSL_WB1-6TL 1 : 1 WB2-1TSL_WB2-1TL 1 : 2 WB2.5-6TSL_WB2.5-6TL 1 : 2.5 WB3-1TSL_WB3-1TL 1 : 3 WB4-1HSL_WB4-1HL 1 : 4 WB4-6TSL_WB4-6TL 1 : 4 WB5-1TSL_WB5-1TL 1 : 5 WB8-1TSL_WB8-1TL 1 : 8 WB13-1TSL_WB13-1TL 1 : 13 WB16-6TSL_WB16-6TL 1 : 16 WBT1-6SL_WBT1-6L 1 : 1 WBT1.5-1SL_WBT1.5-1L 1 : 1.5 WBT2.5-6SL_WBT2.5-6L 1 : 2.5 WBT4-1SL_WBT4-1L 1 : 3 WBT4-1ASL_WBT4-1AL 1 : 4 WBT16-1SL_WBT16-1L 1 : 16 WBT25-1SL_WBT25-1L 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 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 — — — — — — — — — — 30 18 29 13 4.0 15 5.0 13 17 10 25 19 19 11 13 3.5 7.5 6.0 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. 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. Measurements are referenced to 50 Ohms. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Document 425-2 Revised 04/27/12 Document 425-3 Attenuation (dB) 0 1 2 3 WB1-1 3 dB bandwidth: 0.150 – 500 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 Attenuation (dB) 0 1 2 3 WB1-6 3 dB bandwidth: 0.100 – 350 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 Attenuation (dB) 0 1 2 3 WB1.18-3 3 dB bandwidth: 0.040 – 300 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 Attenuation (dB) 0 1 2 3 WB1.5-6 3 dB bandwidth: 0.050 – 325 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 Attenuation (dB) Attenuation (dB) Attenuation (dB) Attenuation (dB) Attenuation (dB) Attenuation (dB) Transformers with no center taps 1 2 3 WB2-1-2W 3 dB bandwidth: 0.080 – 700 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 1 2 3 WB2.5-6 3 dB bandwidth: 0.080 – 225 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 1 2 3 WB4-6 3 dB bandwidth: 0.100 – 125 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 1 2 3 WB9-1 3 dB bandwidth: 0.125 – 125 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 1 2 3 WB16-1 3 dB bandwidth: 0.050 – 100 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 100 1000 0 1 2 3 WB36-1 3 dB bandwidth: 0.100 – 45 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) Attenuation measured on a network analyzer (re: 50 Ohms) Document 425-3 Revised 04/27/12 Document 425-4 Attenuation (dB) Attenuation (dB) 0 1 2 3 WB1-1T 3 dB bandwidth: 0.100 – 375 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 Attenuation (dB) 0 1 2 3 WB1-6T 3 dB bandwidth: 0.050 – 200 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 Attenuation (dB) 0 1 2 3 WB2-1T 3 dB bandwidth: 0.070 – 400 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 Attenuation (dB) 0 1 2 3 WB2.5-6T 3 dB bandwidth: 0.050 – 125 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 Attenuation (dB) Attenuation (dB) Attenuation (dB) Attenuation (dB) Attenuation (dB) Attenuation (dB) Transformers with secondary center tap 1 2 3 WB3-1T 3 dB bandwidth: 0.040 – 500 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 1 2 3 WB4-6T 3 dB bandwidth: 0.050 – 200 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 1 2 3 WB5-1T 3 dB bandwidth: 0.050 – 400 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 1 2 3 WB8-1T 3 dB bandwidth: 0.150 – 400 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 1 2 3 WB13-1T 3 dB bandwidth: 0.150 – 125 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 1 2 3 WB16-6T 3 dB bandwidth: 0.050 – 100 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 1 2 3 WB4-1H 3 dB bandwidth: 0.100 – 500 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 Attenuation measured on a network analyzer (re: 50 Ohms) Document 425-4 Revised 04/27/12 Document 425-5 Attenuation (dB) Attenuation (dB) 0 1 2 3 WBT1-6 3 dB bandwidth: 0.040 – 200 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 Attenuation (dB) 0 1 2 3 WBT1.5-1 3 dB bandwidth: 0.040 – 350 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 Attenuation (dB) Attenuation (dB) Attenuation (dB) Attenuation (dB) Transformers with primary and secondary center taps 1 2 3 WBT2.5-6 3 dB bandwidth: 0.050 – 100 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 1 2 3 WBT4-1A 3 dB bandwidth: 0.040 – 350 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 0 1 2 3 WBT16-1 3 dB bandwidth: 0.100 – 100 MHz 4 5 0.01 0.1 1 10 Frequency (MHz) 100 1000 100 1000 0 1 2 3 WBT25-1 3 dB bandwidth: 0.100 – 65 MHz 4 5 0.01 0.1 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 Frequency (MHz) 100 1000 Attenuation measured on a network analyzer (re: 50 Ohms) Document 425-5 Revised 04/27/12