LK21252R2M-T Taiyo Yuden, LK21252R2M-T Datasheet - Page 18

• Manufacturer Part Number: LK21252R2M-T
• Description: INDUCTOR MULTILAYER 2.2UH 0805
• Manufacturer: Taiyo Yuden
• Series: LKr

Specifications of LK21252R2M-T

• Inductance: 2.2µH
• Current: 30mA
• Tolerance: ±20%
• Shielding: Shielded
• Dc Resistance (dcr): 650 mOhm Max
• Q @ Freq: 45 @ 100MHz
• Self Resonant Freq: 50MHz
• Package / Case: 0805 (2125 Metric)
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Frequency - Test: 10MHz
• Applications: Portable Equipment
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Saturation: -
• Current - Temperature Rise: -

Precautions on the use of Multilayer chip Inductors, Multilayer chip inductors for high frequency, Multilayer ferrite chip beads
5.Cleaning
7. Handling
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6. Post cleaning processes
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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
（1） If inductors are dropped on the floor or a hard surface
（2） When handling the mounted boards, be careful that
2. Cleaning conditions should be determined after
◆Application of resin coatings, moldings, etc. to the
1. With some type of resins a decomposition gas or
2. When a resin's hardening temperature is higher
3. Stress caused by a resin’ s temperature generated
The use of such resins, molding materials etc. is not
recommended.
◆Breakaway PC boards （splitting along perforations）
1. When splitting the PC board after mounting inductors
2. Board separation should not be done manually, but by
◆General handling precautions
1. Always wear static control bands to protect against ESD.
2. Keep the inductors away from all magnets and mag-
3. Use non-magnetic tweezers when handling inductors.
4. Any devices used with the inductors （soldering irons,
5. Keep bare hands and metal products （i.e., metal desk）
6. Keep inductors away from items that generate mag-
◆Mechanical considerations
1. Be careful not to subject the inductors to excessive
PCB and components.
chemical reaction vapor may remain inside the res-
in during the hardening period or while left under
normal storage conditions resulting in the deterio-
ration of the inductor's performance.
verifying, through a test run, that the cleaning pro-
cess does not affect the inductor's characteristics.
expansion and contraction may damage inductors.
and other components, care is required so as not to
give any stresses of deflection or twisting to the board.
using the appropriate devices.
away from chip electrodes or conductive areas that
lead to chip electrodes.
than the inductor's operating temperature, the
stresses generated by the excess heat may lead to
inductor damage or destruction.
netic objects.
measuring instruments） should be properly grounded.
netic fields such as speakers or coils.
mechanical shocks.
the mounted components do not come in contact with
or bump against other boards or components.
they should not be used.
Precautions
（1） Excessive cleaning
2. Inappropriate cleaning conditions （insufficient or excessive cleaning） may
detrimentally affect the performance of the inductors.
excessive vibration of the PC board which may lead to the cracking of
the inductor or the soldered portion, or decrease the terminal electrodes'
strength. Thus the following conditions should be carefully checked;
In the case of ultrasonic cleaning, too much power output can cause
Ultrasonic output
Ultrasonic frequency
Ultrasonic washing period 5 min. or less
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Please read the "Notice for TAIYO YUDEN products" before using this catalog.
Technical considerations
Below 40 kHz
Below 20 w/ℓ
6/7
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