F-3554

Very Low Profile Tax Filters Attenuates 12 or 16 kHz signals to telco equipment by more than 25 dB. Uses standard-value capacitor for either 12 or 16 kHz resonance Designed to provide 25 dB minimum attenuation at 12 or 16 kHz. 5 Schematic Diagram 1 Electrical Specifications at 25O C Part Number Inductance (1) +5% (mH) D.C. Resistance Max. (Ω) D.C. Current Max. (mA) Hi-Pot Min. (VAC) Attenuates 12 or 16 kHz F-3551 F-3552 F-3553 F-3554 2.58 1.44 7.96 4.52 14.0 10.0 28.0 20.0 70 90 70 90 1250 1250 1250 1250 12 kHz, Parallel L with C=68 nF 16 kHz, Parallel L with C=68 nF 12 kHz, Series L with C=22 nF 16 kHz, Series L with C=22 nF 1. Tested at 10KHz and 100 mVRMS Physical Dimensions inches (mm) } Optional use as Dual .079 (2.00) TYP. .020 (0.50) TYP. 6 7 8 9 10 5 4 2 1 .660 (16.76) MAX. Use of F-3551 inductor in a parallel LC configuration followed by a F-3553 in a series configuration to provide more than 40 dB attenuation of tax pulse signals Use of F-3552 inductor in a parallel LC configuration followed by a F-3554 in a series configuration to provide more than 40 dB attenuation of tax pulse signals .027 (0.69) .660 (16.76) MAX. .768 (19.50) .172 (4.37) MAX. .053 (1.35) Terminal #1 Indicator Specifications subject to change without notice. For other values & Custom Designs, contact factory. TAXFILTR - 10/98 Rhombus Industries Inc. 18 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Tel: (714) 898-0960 • Fax: (714) 896-0971 Tax Pulse Filter Inductor Single Inductance Vary capacitor value for 12 KHz or 16 KHz Rhombus Part Number: F-3503 Electrical Specifications at 25O C Materials used in the construction of this component meet or exceed UL Class B and can be operated up to 130oC Parameter Min. Typ. Max. Units Schematic 1 Inductance (Pins 1-3) D.C. Resistance Current "12 KHz" Capacitor "16 KHz" Capacitor Single LC attenuation Dual LC attenuation 1. Tested at 10KHz and 100 mVRMS 6.19 10.5 6.52 12.05 6.84 13.6 70 mH Ω mADC nF nF dB dB 25.0 14.0 27.0 15.0 25 40 28.0 15.7 3 Table #1 Physical Dimensions in inches (mm) “Tax Pulse” Frequencies for various countries: Country Frequency Austria 12 kHz Belgium 16 kHz Switzerland 12 kHz Germany 16 kHz Denmark 12 kHz Spain 12 kHz France 12 kHz Great Britain 50 Hz* Greece 16 kHz Italy 12 kHz Ireland 12 kHz Israel 16 kHz Norway 16 kHz Netherlands 50 Hz* Portugal 12 kHz Sweden 12 kHz Finland 16 kHz Turkey 12 kHz Yugoslavia 16 kHz Australia 12 kHz Czechoslovakia 16 kHz *Common-mode (longitudinal) signal .450 (11.43) MAX. .025 (0.64) TYP. .200 (5.08) .400 (10.16) .571 (14.50) MAX. 1 2 3 .551 (14.00) MAX. 6 5 4 Specifications subject to change without notice. For other values & Custom Designs, contact factory. TAXFILTR - 10/98 Rhombus Industries Inc. 19 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Tel: (714) 898-0960 • Fax: (714) 896-0971