Dielectric Filters for Surface Mounting TYPE #4DFA (2 Pole SMD 2) / #4DFB(3 Pole SMD 3) Frequency Range/ : 700~2500MHz Temperature Range/ :- 40C~+ 85C #4DFA Typical Characteristics (Unit: mm) *: Depends on Center Frequency. *: #4DFB (Unit: mm) *: Depends on Center Frequency. *: SELECTION GUIDE FOR STANDARD DEVICES/ The Part Numbers shown in the tables below are standard devices, which are readily available. TOKO will design and manufacture modified and custom devices with specific characteristics to meet your requirements. If you do not find the devices for your application in this catalog, please contact our sales or representative office. RoHS compliant. RoHS TYPE #4DFA: SMD 2 Pole Designs / #4DFA: 2 TOKO Part Number #4DFA-836E-10 #4DFA-881E-10 #4DFA-902E-10 #4DFA-947E-10 #4DFA-866A-10 #4DFA-886A-10 #4DFA-808C-11 #4DFA-849C-10 #4DFA-915E-10 #4DFA-1227B-10 #4DFA-1227B-11 #4DFA-1227D-12 #4DFA-1237L-10 #4DFA-1248B-10 #4DFA-1575B-10 #4DFA-1575B-12 #4DFA-1575B-14 #4DFA-1591L-10 #4DFA-2442P-10 Center Bandwidth Frequency (MHz) (fo MHz) 836.5 12.5 881.5 12.5 902.5 12.5 947.5 12.5 866.0 2.0 886.0 1.0 808.0 8.0 849.0 8.0 915.0 13.0 1227.0 5.0 1227.0 5.0 1227.0 10.0 1237.0 30.0 1248.0 5.0 1575.4 5.0 1575.4 5.0 1575.4 5.0 1591.0 30.0 2442.0 40.0 Input Output impedance : 50 Insertion Loss (dB) Max. 2.0 2.0 2.0 2.0 3.0 3.0 2.0 2.0 2.2 2.0 1.2: 0.7 Typ. 1.2: 0.7 Typ. 1.7 2.0: 1.4 Typ. 2.0: 1.4 Typ. 1.2: 0.7 Typ. 2.5: 1.8 Typ. 1.5 2.5 BW Ripple V.S.W.R. in BW in BW (dB) Max. Max. 1.0 2.0 1.0 2.0 1.0 2.0 1.0 2.0 1.0 1.43 1.0 2.0 1.0 2.0 1.0 2.0 1.0 2.0 0.8 2.0 0.5 2.0 0.7 2.0 1.0 2.0 0.8 2.0 0.8 2.0 0.5 2.0 0.8 2.0 0.7 2.0 1.0 2.0 Selectivity (dB) Min. (MHz) 18 (fo 77.5) 18 (fo 77.5) 18 (fo 77.5) 18 (fo 77.5) 30 (fo - 105) 22 (fo 45) 22 (fo 64) 22 (fo 64) 18 (fo 77.5) 7, 30 (fo 35, 140) 15, 20 (fo + 140, - 140) 16, 20 (fo + 140, - 140) 10, 15 (fo + 140, - 140) 7, 30 (fo 35, 140) 7, 30 (fo 35, 140) 17, 20 (fo + 140, - 140) 17 (fo 50) 10, 15 (fo + 140, - 140) 15 (fo 250) Application AMPS AMPS NMT/GSM NMT/GSM CT2 Cordless Phone Wireless Microphone Wireless Microphone Spread Spectrum GPS GPS GPS GPS+GLONASS GPS GPS GPS GPS GPS+GLONASS Spread Spectrum Dielectric Filters for Surface Mounting TYPE #4DFB: SMD 3 Pole Designs/ #4DFB 3 TOKO Part Number #4DFB-591F-10 #4DFB-621F-10 #4DFB-704E-10 #4DFB-790H-10 #4DFB-796F-10 #4DFB-836E-10 #4DFB-881E-10 #4DFB-886A-10 #4DFB-953A-10 #4DFB-915E-10 #4DFB-1030C-10 #4DFB-1227D-10 #4DFB-1575D-10 #4DFB-1542G-10 #4DFB-1643G-10 #4DFB-1747N-10 #4DFB-1842N-10 #4DFB-1950L-10 #4DFB-2140L-10 #4DFB-2442P-10 #4DFB-920A-11 #4DFB-860D-10 #4DFB-938A-13 Center Bandwidth Frequency (MHz) (fo MHz) 591.0 15.0 621.0 15.0 704.0 12.0 790.0 20.0 796.0 14.0 836.5 12.5 881.5 12.5 886.0 1.0 953.5 1.5 915.0 13.0 1030.0 7.5 1227.0 10.0 1575.0 10.0 1542.0 17.0 1643.5 17.0 1747.5 35.0 1842.5 35.0 1950.0 30.0 2140.0 30.0 2442.0 40.0 920.0 2.5 860.0 10.0 938.0 3.0 Input Output impedance: 50 Insertion Loss (dB) Max. 3.0 3.0 3.0 2.7 3.0 2.5 2.5 4.5 6.0 2.7 3.2 3.2 3.2 2.0 1.6 2.0 2.0 3.0 3.0 2.5 5.0 2.5 2.0 BW Ripple V.S.W.R. in BW in BW (dB) Max. Max. 1.2 2.2 1.2 2.2 1.0 2.0 1.1 2.5 1.0 2.0 1.0 2.0 1.0 2.0 1.0 2.0 1.5 2.0 1.0 2.0 1.0 1.6 1.0 2.0 1.0 2.0 1.0 2.0 0.5 1.5 1.2 2.0 1.2 2.0 1.0 2.0 1.0 2.0 1.2 2.0 1.0 2.0 0.8 2.0 1.0 2.0 Selectivity (dB) Min. (MHz) 40 (fo 110) 40 (fo 110) 40,43 (fo - 100, + 100) 35 (fo 100) 40,43 (fo - 100, + 100) 12 (fo 32.5) 12 (fo 32.5) 41 (fo 45) 30 (fo 30) 12 (fo 32.5) 20, 50 (fo 35, 140) 12, 40 (fo 35, 140) 12, 40 (fo 35, 140) 17 (fo 84.5) 18, 28 (fo - 67, + 108) 12, 38 (fo 100, 350) 24, 38 (fo 157, 350) 25, 25 (fo - 230, + 160) 30, 22 (fo - 340, - 160) 5, 32 (fo 80, 250) 50, 18 (fo - 88, 20) 15, 35 (fo 35, 80) 18, 13 (fo - 36, + 36) Application Wireless Microphone Wireless Microphone Wireless Microphone Wireless Microphone Wireless Microphone AMPS AMPS Cordless Phone RFID Spread Spectrum TCAS GPS GPS MCSS/INMARSAT MCSS/INMARSAT PCN PCN W-CDMA W-CDMA Spread Spectrum Digital TV LMR LMR