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参数资料
| 型号： | TZB4Z250EB10R01 |
| 厂商： | Murata Electronics North America |
| 文件页数： | 33/39页 |
| 文件大小： | 0K |
| 描述： | CAP TRIMMER 4-25PF 50V SMD |
| 标准包装： | 2,500 |
| 系列： | TZB4 |
| 电容范围： | 4 ~ 25pF |
| 调节型： | 底部调节 |
| 电压 - 额定： | 50V |
| 尺寸/尺寸： | 长方形 - 0.177" L x 0.157" W（4.50mm x 4.00mm） |
| 高度 - 座高（最大）： | 0.126"（3.20mm） |
| 安装类型： | 表面贴装 |
| 特点： | 通用 |
| 包装： | 带卷 (TR) |
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! Note ? Please read rating and ! CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
? This catalog has only typical speci?cations. Therefore, please approve our product speci?cations or transact the approval sheet for product speci?cations before ordering.
c Notice (Soldering and Mounting)
T13E.pdf
Nov.22,2013
1. Soldering
(1) Can be soldered by re?ow soldering method, ?ow
soldering method, and soldering iron.
(2) Soldering conditions
Refer to the temperature pro?le.
If the soldering conditions are not suitable, e.g.,
excessive time and/or excessive temperature, the
trimmer capacitor may deviate from the speci?ed
characteristics.
(3) The amount of solder is critical.
(4) The thickness of solder paste should be printed
from 150 micro m to 200 micro m and the dimension
of land pattern should be Murata's standard land
pattern used at re?ow soldering. Insuf?cient
amounts of solder can lead to insuf?cient
soldering strength on PCB. Excessive amounts of
solder may cause bridging between the terminals
or contact failure due to ?ux wicking up.
(5) When using soldering iron, the string solder
shall be applied to the lower part of the
terminal only. Do not apply ?ux except to the
terminals. Excessive amounts of solder and/or
applying solder to the upper part of the
terminal may cause ?xed rotor or contact failure
due to ?ux invasion into the movable part and/or
the contact point. The soldering iron should not
come in contact with the plastic case of the
trimmer capacitor. If such contact does occur,
the trimmer capacitor may be damaged.
(6) Our recommended chlorine content of solder is
as follows.
(a) Solder paste: 0.2wt% max.
(b) String solder: 0.5wt% max.
c Notice (Handling)
1. Use suitable screwdrivers that ?t comfortably in
(7) Do not use water-soluble ?ux (for water
cleaning). To prevent the deterioration of
trimmer capacitor characteristics, apply ?ux
only to terminals.
2. Mounting
(1) Do not apply excessive force (preferably 5.0N
[Ref: 500gf] max.), when the trimmer capacitor
is mounted on the PCB.
(2) Do not warp and/or bend PCB to protect trimmer
capacitor from breakage.
(3) When bending the terminals, do not apply
excessive force to the body of the product to
protect the terminal ?xing part from damage.
(4) Use a pick-up nozzle of a suitable dimension.
> Without cover ?lm type
- External dimensions of 4.5x4.0mm and
2.5mm bore diameter.
> With cover ?lm type
- 4.0mm external diameter and 2.0mm bore
diameter.
3. Cleaning [with cover ?lm type]
Isopropyl alcohol and ethyl alcohol are available
material for cleaning. If you use any other type of
solvent, please evaluate performance in your
application. Moreover, please con?rm that no
damage has occurred to the trimmer capacitor
after cleaning in your conditions.
4. Other
Note the polarity of the trimmer capacitor to
minimize in?uence by stray capacitance.
(Refer to the dimensions concerning the polarity.)
3. Do not apply adhesive, lock paints, or any other
driver slot.
(1) Recommended screwdriver for manual adjustment
MURATA: KMDR010
(2) Recommended screwdriver bit for automatic
adjustment
MURATA: KMBT010
2. When adjusting with a screwdriver, do not apply
excessive force (preferably 1.0 N [Ref: 100gf] max.)
to minimize capacitance drift. Excessive force applied
to the screwdriver slot may cause deformation of the
products.
substances to the trimmer capacitor to secure the
rotor position. They may cause corrosion or
electrical contact problems.
4. Do not break the cover ?lm before the completion
of PCB mounting, soldering, and cleaning.
5. Do not clean the trimmer capacitor after the cover
?lm has been broken.
6. To break the cover ?lm, ?rst turn the screwdriver
more than 360°, and set the capacitance value.
(Inserting the screwdriver only will not break the
cover ?lm.)
7
c Notice (Other)
Before using trimmer capacitors, please test after
assembly in your particular mass production system.
31
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