B84312C0050B021

Filters for Communication Lines Analog Systems and Control Lines Series/Type: B84312 Date: January 2004 © EPCOS AG 2004. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited. Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers' Association), unless otherwise agreed. Filters for communication lines Analog systems and control lines B84312 Passband up to 300 kHz Stopband attenuation up to 40 GHz Features Use of coaxial feed-through capacitors on input and output Single or current-balanced chokes depending on requirement Insertion loss to CISPR 17 Also available with integrated EMP protection Installation Single filters are attached directly to the shielding wall. Larger numbers can be housed in filter cabinets or boxes. Various models and the matching flexible connector fittings are available. Mechanical design The electrical components are incorporated in an RF-tight case of tin-plated sheet steel. Filters are available for 2 or 20 lines and for upright or flat installation on shielding wall. Model Installation Space-saving solution for installing a number of different filters. Low profile and thus advantage especially for just one or a few filters. Filter selection B84312C*B (2-line) B84312C*H (20-line) B84312F*B (2-line) B84312C Upright B84312F Flat 2 Filters for communication lines Analog systems and control lines B84312 Filter applications The following standard filters are designed for the most common applications; customized models can be produced for differing requirements. Passband kHz DC ... 3.4 DC ... 3.4 ZL Ω 600 600 IR A 0.1 0.1 Standard filters for telephone systems Telephone systems for enhanced requirements (stopband attenuation of 100 dB above 10 kHz ) Filters for telephone systems and modem cables, conditionally for control lines with critical signal rise times Data signals with balanced signal transmission mode as used by modems or interfaces RS 485 up to 9600 Baud and/or RS 422 up to 19200 Baud Smoke detectors with serial data transmission in bus systems and remote power feeding, temperature switches, 24 V emergency lighting, DC motors 24-V emergency lighting, DC motors, signal and control lines Universal filters for signal and control lines with up to 1 A Control lines with up to 1 A and enhanced attenuation requirements Application Circuit No. Series diagram of lines B84312 1 3 2 20 2 20 2 20 +0020B*** C0020H*** +0090B*** C0090H*** +0040B*** C0040H*** DC ... 50 600 0.1 1 DC ...120 DC ... 300 150 150 0.1 0.1 2 2 2 20 2 20 2 20 +0050B*** C0050H*** +0060B*** C0060H*** +0050B*** C0050H*** DC ... 120 100 2 2 3 1 1 2 1 3 2 20 2 20 2 20 +0050B*** C0050H*** +0030B*** C0030H*** +0100B*** C0100H*** +: C = upright installation, F = flat installation 3 Filters for communication lines Analog systems and control lines B84312 Circuit diagrams The diagrams each show a circuit of a 2-line filter. In the series of 20-line filters there are 10 of them in each case. Circuit diagram 1 Circuit diagram 2 Circuit diagram 3 Note on circuit diagrams 2 and 3: These filters are mounted with current-compensated chokes. Make sure that the forward and return line are routed paired through one filter. 4 Filters for communication lines Analog systems and control lines B84312 General technical data Rated voltage Rated voltage Rated frequency Rated current Line impedance Test voltage Maximum DC resistance Climatic category (EN 60068-1) Weight Mechanical version Filters with EMP protection: Nominal DC spark-over voltage Surge response voltage Nominal surge current (8/20 µs) Suppression condition VsdcN