Document 152 Tip and Ring Common Mode Filters These economical filters are designed to help telecommunications equipment engineers meet FCC and CCITT requirements. Available in 1 or 2 line (2 or 4 wire) versions, Coilcraft tip and ring filters provide >15 dB attenuation of common mode noise over the 3 Hz to 300 MHz frequency range. Part number: Minimum inductance: Rated current: DC resistance: Dielectric strength1: TRF 2000L (1-line) TRF 4000L (2-line) 20 µH 500 mA 0.065 Ohms max 1500 Vrms min 1. For TRF 2000, dielectric strength measured from pins 1,8 to 4,5. For TRF 4000, dielectric strength measured from pins 1,2,7,8 to pins 3,4,5,6. 2. Ambient temperature range –40°C to +85°C. 3. Electrical specifications at 25°C. TRF 2000L TRF 4000L C Typical Response* C 0 Attenuation (dB) B B Differential Mode 10 D 20 0.030 dia 0,76 5 8 D 0.030 dia 0,76 7 8 6 5 Common mode 30 A 40 0.1 1 10 100 1000 1 Frequency (MHz) 2 1 4 Recommended Board Layout *Measured on HP 8753D network analyzer TRF 4000L 8 5 8 7 6 5 0.040 1,02 (5×) 8 E 1 4 F 2 3 4 Recommended Board Layout 5 8 TRF 2000L A 5 0.040 1,02 (8×) E 1 4 F G Terminations: Tin-silver over tin 1 4 1 2 3 4 A max B max C max D E F G 0.425 0.550 0.475 0.1150.3000.1000.300 inches 10,8013,9712,072,927,622,547,62mm US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 152 Revised 05/27/05 © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.