B78108S1222K EPCOS Inc, B78108S1222K Datasheet - Page 14

• Manufacturer Part Number: B78108S1222K
• Description: CHOKE RF 2.2UH 1.0A AXIAL
• Manufacturer: EPCOS Inc
• Series: BCr
• Type: Ferrite Corer

Specifications of B78108S1222K

• Inductance: 2.2µH
• Tolerance: ±10%
• Current: 1A
• Dc Resistance (dcr): 250 mOhm Max
• Q @ Freq: 55 @ 7.96MHz
• Self Resonant Freq: 140MHz
• Package / Case: Axial
• Mounting Type: Through Hole
• Frequency - Test: 7.96MHz
• Material - Core: Ferrite Drum
• Applications: General Purpose
• Maximum Dc Current: 1000 mAmps
• Maximum Dc Resistance: 0.25 Ohms
• Self Resonant Frequency: 140 MHz
• Q Minimum: 55
• Termination Style: Axial
• Inductance Tolerance: ± 10%
• Dc Resistance Max: 0.25ohm
• Dc Current Rating: 1A
• Q Test Frequency: 7.96MHz
• Inductor Case Style: Axial Leaded
• No. Of Pins: 2
• Svhc: No SVHC (18-Jun-2010)
• Rohs Compliant: Yes
• Body Diameter: 4mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Shielding: -
• Current - Saturation: -
• Current - Temperature Rise: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: B78108S1222K000

7
7.1
The rated voltage V
component at temperatures between the lower category temperature T
temperature T
7.2
The test voltage V
test duration in the course of final inspection (100% end of line testing). This test may be repeated
once as an incoming goods inspection test.
7.3
The rated current l
the nominal operating conditions.
For components with 1, 2 or 3 lines, the rated current is specified for simultaneous flow of a current
of this value through all lines.
During ac operation, higher thermal loads may be caused due to waveforms which deviate from a
pure sine wave. Where necessary, such cases must be taken into consideration.
7.4
The rated current may be exceeded briefly. Details on permissible currents and load duration can
be obtained upon request.
7.5
Saturation effects (e.g in the ferrite cores used) may occur when high-energy pulses are applied to
the components and these may lead to impaired interference suppression. The maximum permis-
sible voltage-time integral area is used to characterize the pulse handling capability of chokes. For
standard components a range from 1 to 10 mVs can be assumed. More specific data can be ob-
tained upon request.
7.6
At ambient temperatures above the operating temperature stated in the data sheet, the operating
current must be reduced according to the derating curve.
7.7
The rated inductance L
measured at the frequency f
General Technical Information
Electrical characteristics
Rated voltage V
Test voltage V
Rated current I
Overcurrent
Pulse handling capability
Current derating I
Rated inductance L
max
.
T
R
is the ac or dc voltage which may be applied to the component for the specified
is ac or dc current at which the component may be continuously operated under
R
is the maximum ac or dc voltage which can be continuously applied to the
T
R
R
R
is the inductance which has been used to designate the choke, as
op
L
.
R
/ I
R
22
04/00
min
and the upper category