B82477G4223M EPCOS Inc, B82477G4223M Datasheet - Page 19
![INDUCTOR, POWER, 22UH](/photos/25/97/259732/136213107-40_sml.jpg)
B82477G4223M
Manufacturer Part Number
B82477G4223M
Description
INDUCTOR, POWER, 22UH
Manufacturer
EPCOS Inc
Series
B82477-G4r
Specifications of B82477G4223M
Inductance Tolerance
± 20%
Dc Resistance Max
0.038ohm
Dc Current Rating
3.6A
Core Material
Ferrite
Inductor Case Style
SMD
No. Of Pins
2
Svhc
No SVHC (18-Jun-2010)
Dc Current Max
3.6A
Inductance
22µH
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
B82477G4223M000
Manufacturer:
EPCOS
Quantity:
60 000
Part Number:
B82477G4223M000
Manufacturer:
EPCOS/爱普科斯
Quantity:
20 000
8.3
Figure 13
ductance. One of the chokes has a two-layer winding and the other is randomly wound. The choke
with random windings has a considerably higher first resonance frequency. The spurious resonanc-
es are very much higher than 10 MHz. The impedance at frequencies above the first resonance fre-
quency is approximately five times higher. This leads to better interference suppression at high
frequencies.
Fig. 13
The RF characteristics of all chokes supplied by EPCOS are within the specifications and reproduc-
ible, as the winding processes which we have developed for single-layer, multilayer and random
winding ensure that the characteristics of the inductors produced display very little variation.
The reproducibility of electrical characteristics of chokes is mainly determined by the production
technique used. At EPCOS, coils are wound mainly by automatic machines (either fully or semi-au-
tomated). This permits even complicated winding patterns to be produced in large production runs
with very little variation in product characteristics. In
chokes, some wound manually and some by machine, are shown for comparison. With the random
winding used in this comparison, the advantages of machine winding are clearly noticeable.
General Technical Information
RF characteristics of various types of winding
Random wdg.
2-layer wdg.
Impedance | Z | versus frequency f
comparison between two-layer winding and random winding
shows the relation between the impedance and the frequency for two chokes of equal in-
27
04/00
fig.
14, the impedance curves of several