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Selfs - Current--compensated Noise Suppression Chokes - FAMILLE 42H27 - 42V30



CASE VERSION Voltage 250 Vac
Current 0.5 to 4 A

These chokes are fitted with high-permeability toroid core (ferrite). They are mainly used in devices
equipped with switched-mode power supplies, and in filters designed to prevent both the spread of
parasitic noise within the device, and the effects of line noise on the device itself

TYPES

Types Horizontal Vertical Rated curent per winding A Rated inductance per winding mH DC resistance per winding(typical)mΩ
Code Code
42H27 - 42V30 42H27050042V3005000,5562000
42H2706000,64727
42H27100042V301000127600
42H27200042V30200025,691
42H27400042V30400042,745

Technical Data


Rated current: referred to 250 V-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: 1500 V -50 Hz, 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: 16 g

Approval: VDE

The chokes 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