Frontier Electronics Corp. 667 E. COCHRAN STREET, SIMI VALLEY, CA 93065 TEL: (805) 522-9998 FAX: (805) 522-9989 E-mail: [email protected] Web: frontierusa.com RFID Transponder Coils—STC1120-Series A. Electrical specification: Part Number. L (mH) Test Freq (KHz) Q (Min) STC1120-374K STC1120-404K STC1120-704K STC1120-904K STC1120-115K STC1120-205K STC1120-245K STC1120-295K STC1120-335K STC1120-415K STC1120-495K STC1120-685K STC1120-715K STC1120-725K STC1120-815K STC1120-905K 0.37 0.40 0.70 0.90 1.08 1.97 2.38 2.89 3.30 4.15 4.90 6.80 7.10 7.20 8.10 9.00 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 26 26 20 22 24 28 30 30 30 27 26 28 27 28 28 30 Read distance (in./cm) 22/55.9 23/58.4 25/63.5 26/66.0 30/76.2 34/86.4 37/94.0 37/94.0 38/96.5 39/99.1 38/96.5 41/104.1 42/106.7 40/101.6 42/106.7 40/101.6 Sensitivity (mV/µT) 9.82 10.38 13.96 16.06 17.78 24.90 28.21 32.12 34.96 41.35 47.17 61.71 65.60 66.67 75.08 84.64 Matching Capacitor (pF) 4380 4050 2320 1800 1500 823 681 561 491 391 331 238 228 225 200 180 DCR Max (Ω) 6.5 7.1 19 21 24 31 34 42 48 70 93 110 114 114 125 125 SRF Typ. (KHz) 1800 5000 6600 4800 4300 1750 1700 1900 1425 1620 1150 1080 1050 965 965 725 B. Mechanical dimensions: (Unit: mm) Max Max STC1120-series C. General Information: 1. 2. 3. 4. 5. 6. 7. Tolerance: K = ± 10%. Electrical specifications at 25ºC. Operating temperature: -40ºC to +125ºC. L measured with HP 4284A LCR meter. SRF measured with HP 4291B or HP 8753E. DCR measured with 502BC milli-OHM meter. Read distance measured with KEELOQ Transponder Evaluation Kit part number DM303005 from Microchip. Distance was record as the voltage across the resonant circuit dropped below 10mV. 8. Sensitivity measured in accordance with Frontier Electronics Corp. application note “Measuring Sensitivity of Transponder Coils” 9. Matching capacitor vale required for parallel resonant circuit operating at 125 KHz. Note: RoHS compliant; for the RoHS parts, we add “-LFR” at the end of the P/N. RFID Transponder Coils STC1120-series Rev. B Jan. 01, 2006. Page: 1 of 1