Datasheet

4 06/12
Please read Cautions and warnings and
Important notes at the end of this document.
Technical data and measuring conditions
Mounting information
When bending the leads, take care that the start-of-winding areas at the face ends (protected by
glue and lacquer) are not subjected to any mechanical stress.
Rated inductance L
R
Measured with LCR meter Agilent 4284A
or impedance analyzer Agilent 4294A
Measuring frequency: L
R
d 10 PH= 1 MHz
10 PH < L
R
d 4700 PH = 100 kHz
Measuring current: d 1 mA
Measuring temperature: +20 °C
Q factor Q
min
Measured with precision impedance analyzer Agilent 4294A,
+20 °C
Rated temperature T
R
+40 qC
Rated current I
R
Maximum permissible DC current at rated temperature
Inductance decrease 'L/L
0
d10% (referred to initial value) at I
R
, +20 qC
DC resistance R
max
Measured at 20 qC
Resonance frequency f
res,min
Measured with Agilent 4294A or 8753ES, +20 °C
Solderability (lead-free) Sn95.5Ag3.8Cu0.7: +(245 r5) °C, (3 r0.3) s
Wetting of soldering area t90%
(to IEC 60068-2-20, test Ta)
Resistance to soldering heat +(260 r5) °C, 10 s (to IEC 60068-2-20, test Tb)
Tensile strength of leads t20 N (to IEC 60068-2-21, test Ua)
Climatic category 55/125/56 (to IEC 60068-1)
Storage conditions Mounted: –55 °C … +125 °C
Packaged: –25 °C … +40 °C, d75% RH
Weight Approx. 0.38 g
B78108S, B78148SRF chokes
BC series, 4 x 9.2 (mm)