Coilcraft Designer's Kit C145 - SMT 125kHz RFID Transponder Coils 4308TC Series Coilcraft's new family of antenna coils are rugged, high performance devices intended for RFID applications at 125 kHz. These low profile parts have an extended length that allows longer read ranges and higher Q. The coil is constructed of ferrite laminated onto a ceramic base which makes it more rugged and impact resistant than all-ferrite constructions. An encapsulated top assures reliable pick and place operations. In addition to the standard models shown, Coilcraft can design transponder coils designed to operate at other frequencies. Coilcraft Designer's Kit C174 contains four samples of each value shown. Contains 0.40 uH, 7.4 Ohms DCR, 4500 kHz SRF, 15 Q min., 4000 pF Matching Capacitor, YLW/BLK/YLW 0.90 uH, 22 Ohms DCR, 4000 kHz SRF, 15 Q min., 1800 pF Matching Capacitor, WHT/BLK/YLW 1.08 uH, 25 Ohms DCR, 4000 kHz SRF, 15 Q min., 1500 pF Matching Capacitor, BRN/BRN/GRN 1.97 uH, 34 Ohms DCR, 2400 kHz SRF, 17 Q min., 820 pF Matching Capacitor, RED/BLK/GRN 2.38 uH, 39 Ohms DCR, 2200 kHz SRF, 17 Q min., 680 pF Matching Capacitor, RED/YLW/GRN 3.30 uH, 51 Ohms DCR, 1800 kHz SRF, 17 Q min., 490 pF Matching Capacitor, ORG/ORG/GRN 4.15 uH, 74 Ohms DCR, 1700 kHz SRF, 17 Q min., 390 pF Matching Capacitor, YLW/BRN/GRN 4.90 uH, 96 Ohms DCR, 1300 kHz SRF, 17 Q min., 330 pF Matching Capacitor, YLW/WHT/GRN 6.80 uH, 112 Ohms DCR, 1000 kHz SRF, 17 Q min., 240 pF Matching Capacitor, BLU/GRY/GRN 7.10 uH, 115 Ohms DCR, 1000 kHz SRF, 17 Q min., 220 pF Matching Capacitor, VIO/BRN/GRN 8.10 uH, 123 Ohms DCR, 960 kHz SRF, 17 Q min., 200 pF Matching Capacitor, GRY/BRN/GRN
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