Selfs - ISDN Common Mode Chokes - FAMILLE 47H14 47V15

QUAD CHOKES Voltage 80 VDC/42 Vac
Current 0.3 A

These current-compensated chokes for data and signal lines are fitted with high-permeability toroid
core (ferrite). They are used in ISDN equipment in order to suppress the radio frequency interferences
(RFI) at the four-wire telephone line input and also at the power input of the network termination (NT)
and terminal equipment devices (TEs).


Types Horizontal Vertical Rated inductance per Winding mH DC resistance per winting ( typical) mΩ
Code Code
47H14 47V15 47H14 010047V15 01001130
47H14 020047V15 02002,2190
47H14 040047V15 04004,7280
47H14 100047V15 100010400

Technical Data

Rated current: 0.3 A referred to 50 Hz and +60°C ambient temperature
Rated inductance: at +20°C and 10 kHz, 0.1 mA
Inductance tolerance: +50 -30%
Inductance loss: < 10% at DC initial loading with IR
Testing voltage: 500 V -50 Hz, 700 VDC, 2 sec, winding to winding
Climatic category: DIN GKC (-40 to +125°C; humidity cat. C)
DC resistance: at +20°C
Derating operating current: at +120°C ambient temperature I=0
Overtemperature of windings: < 55°C
Max. permissible temperature of windings: 115 °C
Approx. weight: 3 g

The chockes are designed and tested in accordance with EN 138100; EN 60938-1
The cases are of flame-retardant plastic material in accordance with UL 94V-0