1812WBT1.5-4L

Document 117-1 Surface Mount Wideband RF Transformers Available in a variety of impedance versions, Coilcraft’s WBT Series chip transformers provide wide band pass performance in a small surface mount package. The transformers are built on an 1812 size ferrite body with a ceramic base. They feature 50 V isolation and a 1/4 Watt RF input power rating. The top is a high temperature material that creates a flat surface for auto insertion. The parts are packaged in tape and reel for easy dispensing. Applications include impedance matching, voltage or current transformation, DC isolation, balanced/unbalanced mixing, matching, power splitting, coupling and signal inversion. To request free evaluation samples, contact Coilcraft or visit www.coilcraft.com. 1:1 Transformers Part number1 1812WBT-1L_ 1812WBT-2L_ 1812WBT-3L_ 1812WBT-4L_ 1812WBT-5L_ Inductance2 Test frequency Imp. ratio (µH) (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 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)