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Filters for Communication Lines
Analog Systems and Control Lines
Series/Type:
B84312
Date: January 2004
(c) 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
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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 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
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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.
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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 s) Suppression condition VsdcN <500 <800 <800 5/10 I IR V V V kA Per line At 1 kV/s At 1 kV/ns VR,AC 100 VR,DC 100 fR IR ZL Vtest Rmax See characteristics See characteristics 250 VDC, 2 s 250 VDC, 2 s See characteristics 25/+40 25/085/56 560 4.5 C F C 25 C/+85 C/56 days damp heat test g 2-line filters kg 20-line filters Upright for 2- and 20-line filters Flat for 2-line filters Line/line Line/case Per line V V Pass bandwidth at Z L TA = 40 C
Permissible ambient temperature TA
Maximum voltage on filter output for filters with EMP protection Series B84312 ...0020+1** ...0030+1** ...0040+1** ...0050+1** ...0060+1** ...0090+1** ...0100+1** kV/s kV/s kV/ns1) 2V 1V 0.5 V 5V 50 V 35 V 1V 20 V 360 V 60 V 2V 290 V 700 V 130 V 5V 200 V 8V 3V 0.5 V 12 V 250 V 60 V 3V 110 V 3V 2V 0.5 V 10 V 120 V 25 V 1V 25 V 12 V 9V 1.2 V 12 V 280 V 30 V 1V 50 V
Pulse shape in symmetrical circuit dv/dt = 0.1 dv/dt = 1 dv/dt = 1
Nominal surge current (8/20 s) Pulse shape in unsymmetrical circuit dv/dt = 0.1 dv/dt = 1 dv/dt = 1 kV/s kV/s kV/ns1)
Nominal surge current (8/20 s)
1) Typical test pulse: rise time 10 ns, time to half value 1500 ns, charge voltage min. 50 kV, source impedance 90
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Filters for communication lines Analog systems and control lines
B84312
Characteristics and ordering codes IR Pass bandwidth kHz DC ... 3.4 DC ... 3.4 DC ... 3.4 ZL Rmax Per line Circuit diagram 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 Number of lines 2 2 20 2 2 20 2 2 20 2 2 20 2 2 20 2 2 20 2 2 2 2 20 2 2 20 Ordering code
A 0.1 600 11 0.1 600 11 0.1 600 11 2) 3) 0.4 1 2) 3) 0.4 1 2) 3) 0.4 1 0.1 DC ... 50 600 1.1 0.1 DC ... 50 600 1.1 0.1 DC ... 50 600 1.1 0.1 DC ... 120 150 4.4 0.1 DC ... 120 150 4.4 0.1 DC ... 120 150 4.4 DC ... 120 100 0.4 2 DC ... 120 100 0.4 2 DC ... 120 100 0.4 2 2) 3) 0.2 3 2) 3) 0.2 3 2) 3) 0.2 3 0.1 DC ... 300 150 1.0 0.1 DC ... 300 150 1.0 0.1 DC ... 3.4 600 17 0.1 DC ... 3.4 600 17 0.1 DC ... 3.4 600 17 2) 3) 0.6 1 2) 3) 0.6 1 2) 3) 0.6 1 *: 0 = Standard filters 1 = Filters with EMP protection
B84312C0020B*03 B84312F0020B*03 B84312C0020H*03 B84312C0030B*03 B84312F0030B*03 B84312C0030H*03 B84312C0040B*01 B84312F0040B*01 B84312C0040H*01 B84312C0050B*01 B84312F0050B*01 B84312C0050H*01 B84312C0050B*21 B84312F0050B*21 B84312C0050H*21 B84312C0050B*31 B84312F0050B*31 B84312C0050H*31 B84312C0060B*01 B84312F0060B*01 B84312C0090B*04 B84312F0090B*04 B84312C0090H*04 B84312C0100B*03 B84312F0100B*03 B84312C0100H*03
2) Control line filters, not matched 3) Not specified
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Filters for communication lines Analog systems and control lines Insertion loss e in passband (typical)
B84312
Symmetrical measurement circuit with ZL = 600
Symmetrical measurement circuit with ZL = 150
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Filters for communication lines Analog systems and control lines
B84312
Unsymmetrical measurement (common-mode-rejection) in passband
Filter with ZL = 600 CMR >40 dB in passband
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Filters for communication lines Analog systems and control lines Insertion loss e in stopband (typical)
B84312
Unsymmetrical measurement circuit
Asymmetrical measurement to MIL-STD-220A
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Filters for communication lines Analog systems and control lines
B84312
Dimensional drawings 2-line filters, upright installation
Line connections at both ends: 2 x tab connectors for receptacle 2.8 x 0.5 (in accessory bag) Strain relief with ground connection for cable diameter 4.5 ... 6 mm Hole for installation in shielding wall
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Filters for communication lines Analog systems and control lines
B84312
2-line filters, flat installation
Line connections at both ends: 2 x tab connectors for receptacle 2.8 x 0.5 (in accessory bag) Strain relief with ground connection for cable diameter 4.5 ... 6 mm Hole for installation in shielding wall
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Filters for communication lines Analog systems and control lines
B84312
20-line filters, upright installation
Hole for installation in shielding wall
Adapter A bracket adapter is available for flat installation on the shielding wall. Ordering code: B84298M0012C004
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