Document 117-1 Surface Mount Wideband RF Transformers * Provides wide band pass performance in a small SMT package. * 1812 size ferrite body with a ceramic base. * 50 V isolation, 1/4 Watt RF input power Core material Ferrite Environmental RoHS compliant without exemption, halogen free Terminations RoHS compliant gold over nickel over moly-manganese. Other terminations available at additional cost. Weight 131 - 152 mg Ambient temperature -40C to +85C with Irms current Storage temperature Component: -40C to +85C. Tape and reel packaging: -40C to +80C Resistance to soldering heat Max three 40 second reflows at +260C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) One per billion hours / one billion hours, calculated per Telcordia SR-332 Packaging 600/7reel; 2200/13 reel Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 3.7 mm pocket depth PCB washing Only pure water or alcohol recommended 1:1 Transformers Part number1 1812WBT-1L_ 1812WBT-2L_ 1812WBT-3L_ 1812WBT-4L_ 1812WBT-5L_ Inductance2 Test frequency Imp. ratio (H) (MHz) pri : sec 14 10 1:1 5.3 10 1:1 1.25 50 1:1 0.220 50 1:1 0.090 50 1:1 1.5:1 Transformers Part number1 1812WBT1.5-1L_ 1812WBT1.5-2L_ 1812WBT1.5-3L_ 1812WBT1.5-4L_ Inductance (H)2 Test freq. Imp. ratio pri sec (MHz) pri : sec 5.0 3.3 10 1.5 : 1 2.5 1.6 10 1.5 : 1 1.0 0.60 10 1.5 : 1 0.144 0.090 10 1.5 : 1 2:1 Transformers Part number1 1812WBT2-1L_ 1812WBT2-2L_ 1812WBT2-3L_ 1812WBT2-4L_ Inductance (H)2 Test freq. Imp. ratio prisec (MHz) pri : sec 13.80 6.90 10 2:1 5.850 2.925 10 2:1 2.60 1.30 10 2:1 0.910 0.455 50 2:1 DCR max (Ohms) 4.8 1.8 0.7 0.3 0.15 IDC (mA) 200 400 500 700 700 Isolation (Vrms) 50 50 50 50 50 Insertion loss (dB) <1 <1 <1 <1 <1.5 Bandwidth Color (MHz) dot 0.340-22 Yellow 0.800-60 Green 4-200 White 11-480 Orange 48-645 Red DCR max () prisec 1.05 0.87 0.74 0.58 0.43 0.34 0.18 0.14 IDC (mA) 400 500 500 700 Isolation Insertion Bandwidth Color (Vrms) loss (dB) (MHz) dot 50 0.5 1.3-100 Red 50 0.5 2.75-135 Orange 50 0.75 7.2-200 Yellow 50 2.25 38-535 Green DCR max () prisec 4.6 3.2 1.25 0.95 0.52 0.42 0.27 0.23 IDC (mA) 200 400 600 700 Isolation Insertion Bandwidth Color (Vrms) loss (dB) (MHz) dot 50 <1.5 0.800-23 Brown 50 <1.5 2.2-65 Red 50 <1.5 4-105 Orange 50 <1.5 11-200 Yellow 1. When ordering, please specify termination and packaging codes: 1812WBT1.5-4LC Termination: L = RoHS compliant gold over nickel over moly-manganese Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging: C = 7 machine-ready reel. EIA-481 embossed plastic tape (600 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 C instead. D = 13 machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2200 parts per full reel). 2. Inductance is per winding 3. Electrical specifications at 25C. Measurements are referenced to 50 Ohms. Refer to Doc 362 "Soldering Surface Mount Components" before soldering. Document 117-1 Revised 03/23/06 Document 117-2 1 4 Pad Detail 0.178 0.003 4,52 0,08 Color dot over primary 0.020 0,51 3 0.015 0,38 0.070 ref 1,78 0.057 1,45 Top View 1 4 Pri Sec 2 3 0.115 2,92 0.020 0,51 2 0.015 ref 0,38 0.100 0.003 2,54 0,008 0.040 min 1,02 Typical Frequency Attenuation 1:1 Transformers 0.030 0.002 0,76 0,05 0.018 0,46 0.048 1,22 0 Attenuation (dB, Re: 50 Ohms) 0.195 max 4,95 Recommended Land Pattern 0.135 max 3,43 0.150 max 3,81 1 2 3 4 5 -1 6 -4 -3 -2 -5 7 8 0.1 1 10 100 1000 100 1000 100 1000 Frequency (MHz) 0 Attenuation (dB, Re: 50 Ohms) Typical Frequency Attenuation 1.5:1 Transformers 1 2 3 4 5 -1 6 -2 -3 -4 7 8 0.1 1 10 Frequency (MHz) 0 Attenuation (dB, Re: 50 Ohms) Typical Frequency Attenuation 2:1 Transformers 1 2 3 4 5 -1 6 -4 7 8 Measured on a network analyzer (re: 50 Ohms) -3 -2 0.1 1 10 Frequency (MHz) Document 117-2 Revised 01/26/05