CK21254R7M-T Taiyo Yuden, CK21254R7M-T Datasheet - Page 14

INDUCTOR 4.7UH MULTILAYER 0805

CK21254R7M-T

Manufacturer Part Number
CK21254R7M-T
Description
INDUCTOR 4.7UH MULTILAYER 0805
Manufacturer
Taiyo Yuden
Series
CKr
Datasheet

Specifications of CK21254R7M-T

Inductance
4.7µH
Current
120mA
Tolerance
±20%
Dc Resistance (dcr)
480 mOhm Max
Q @ Freq
20 @ 10MHz
Self Resonant Freq
35MHz
Package / Case
0805 (2012 Metric)
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Frequency - Test
10MHz
Applications
EMI Filter
Lead Free Status / RoHS Status
Lead free by exemption / RoHS Compliant
Shielding
-
Current - Saturation
-
Current - Temperature Rise
-
Other names
587-1690-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CK21254R7M-T
Manufacturer:
TAIYO YUDEN
Quantity:
66 000
Part Number:
CK21254R7M-T
Manufacturer:
TAIYO/太诱
Quantity:
20 000
Precautions on the use of Multilayer chip Inductors, Multilayer chip inductors for high frequency, Multilayer ferrite chip beads
3.Considerations for
automatic placement
PRECAUTIONS
当社カタログをご使用の際には 「当社製品に関するお断り」 を必ずお読みください。
Stages
◆Adjustment of mounting machine
1. Excessive impact load should not be imposed on
2. The maintenance and inspection of the mounter
◆Selection of Adhesives
1. Mounting inductors with adhesives in preliminary
the inductors when mounting onto the PC boards.
should be conducted periodically.
assembly, before the soldering stage, may lead
to degraded inductor characteristics unless the
following factors are appropriately checked; the
size of land patterns, type of adhesive, amount
applied, hardening temperature and hardening
period. Therefore, it is imperative to consult the
manufacturer of the adhesives on proper usage
and amounts of adhesive to use.
Precautions
(1) The lower limit of the pick-up nozzle should be adjusted to the surface level of
(2) The pick-up pressure should be adjusted between 1 and 3 N static loads.
(3) To reduce the amount of deflection of the board caused by impact of the
(1) Required adhesive characteristics
1. If the lower limit of the pick-up nozzle is low, too much force may be imposed
2. As the alignment pin wears out, adjustment of the nozzle height can
1. Some adhesives may cause reduced insulation resistance. The differ-
a. The adhesive should be strong enough to hold parts on the board during
b. The adhesive should have sufficient strength at high temperatures.
c. The adhesive should have good coating and thickness consistency.
d. The adhesive should be used during its prescribed shelf life.
e. The adhesive should harden rapidly
f. The adhesive must not be contaminated.
g. The adhesive should have excellent insulation characteristics.
h. The adhesive should not be toxic and have no emission of toxic gasses.
Single-sided mounting
Double-sided
on the inductors, causing damage. To avoid this, the following points should
be considered before lowering the pick-up nozzle:
cause chipping or cracking of the inductors because of mechanical im-
pact on the inductors. To avoid this, the monitoring of the width between
the alignment pin in the stopped position, and maintenance, inspection
and replacement of the pin should be conducted periodically.
ence between the shrinkage percentage of the adhesive and that of the
inductors may result in stresses on the inductors and lead to cracking.
Moreover, too little or too much adhesive applied to the board may ad-
versely affect component placement, so the following precautions should
be noted in the application of adhesives.
the PC board after correcting for deflection of the board.
pick-up nozzle, supporting pins or back-up pins should be used under the PC
board. The following diagrams show some typical examples of good pick-up
nozzle placement:
mounting
the mounting & solder process.
Improper method
Please read the "Notice for TAIYO YUDEN products" before using this catalog.
Technical considerations
Proper method
3/7
259
5

Related parts for CK21254R7M-T