Adjustable (pre-set) Ceramic Capacitors(Series K)
Chip Type Adjustable (pre-set) Ceramic
Capacitors
Series:
K
Series K are miniature in size, ultra-thin (1.8 mm max.
in thickness) type surface mounting devices, and are
re c o m m ended fo r miniaturizatio n of electro nic
equipment.
■ Features
● Miniature and ultra-thin type SMD: 3.2҂4.5҂1.8 max. mm
● Designed for reflow soldering
● Embossed carrier taping types are available for surface
mounting
● Easy reading of the capacitance with color-coded case
■ Recommended Applications
● Hybrid IC and micromodules
● Portable radios and portable cassette tape players
● VTR cameras
● Paging systems
● Cordless telephones
■ Explanation of Part Numbers
1
2
3
4
5
E
C
R
K
N
Series
e.g.
006
020
030
7
8
9
10
11
6
12
1
Shape/
Construction
Capacitance
Capacitance is shown
in 3 digits number.
Unit=pF
Product Code
Adjustable (pre-set)
Ceramic Capacitors
6
Capacitance
6 pF
20 pF
30 pF
Design No.
Shown in 2
digits number
Temperature
Coefficient (ppm/°C)
Code Nominal T.C.
A
NP0
C
N400
E
N900
G
N1200
Code
X
W
Packaging Style
Type
Embossed Carrier Taping
(X)
Embossed Carrier Taping
(W)
■ Ratings and Characteristics
Item
Ratings
Rated Voltage
100 VDC
Dielectric Withstanding Voltage
220 VDC
Insulation Resistance (at C max.)
4
10 Mȑ min. at 100 VDC and 1 minute electrification
Rotation Torque
0.98 to 9.81 mN · m
Operating Temperature Range
Part Number
–25 to +85 °C
Capacitance (pF)
max.
min.
Temperature Coefficient
(ppm/°C)
ECRKN003A61२
3
+50
0
%
1.7 max.
NP0±300
ECRKN006A61२
6
+50
0
%
2.5 max.
NP0±300
ECRKN010C61२
10
+50
0
%
3.0 max.
N400±400
20
+50
0
%
5.0 max.
N900±400
30
+50
0
Q
(at 1 MHz, C max.)
ECRKN020E61२
ECRKN030G61२
Color
Brown
500 min.
Blue
White
Red
300 min.
%
6.0 max.
N1200±500
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Green
Feb. 2006
Adjustable (pre-set) Ceramic Capacitors(Series K)
■ Recommended Soldering Conditions
Recommendations and precautions are described below.
● Recommended soldering conditions for reflow
· Please contact us for additional information when used in conditions other than those specified.
· The profile error may greatly differ depending on the measuring method.
· The temperature varies according to the size of board or installation density.
Therefore please check the temperature for every type of board that may be used.
Temperature
Peak
For lead-free soldering (Example : Sn/Ag/Cu)
Temperature
Preheating
Preheating
Heating
Main heating
Peak
Time
150 °C to 180 °C
60 s to 120 s
Above 230 °C
30 s to 40 s
max. 260 °C
max. 5 s
Time
<< Recommended soldering conditions for soldering iron>>
When soldering with a soldering iron, or when correcting defective soldering on parts after PWB mounting, solder
following these guidelines.
● If the Adjustable (pre-set) Ceramic Capacitor is soldered exceeding the temperature range, functions or characteristics
of the capacitor may degrade due to heat stress.
● In addition, the tip must not directly touch the part other than on the terminals.
Otherwise, distortion due to thermal shock grows, and functions of the capacitor may degrade.
· Solder tip temperature : 380±10 °C
· Soldering time : 3 s max.
■ Design Precautions
(1) When mounting Adjustable (pre-set) Ceramic Capacitor on PWB, set the capacitor in such a position and direction
that it is free from the effects of PWB warping and deflection.
Mechanical stress due to PWB warping or deflection may cause the functions or characteristics of the capacitor to
degrade.
1 Position : Do not place a capacitor near PWB cuts or broken parts.
2 Direction : Place the capacitors horizontal to the direction that the stress is applied.
Ex.)
Recommended example
Bad example
■ Mounting Precautions
(1) PWB mounting
1 Don’t perform temporary sticking to a substrate with adhesives etc.
A movable part at the bottom may get bonded, and adjustment may be disabled.
2 When mounting Adjustable (pre-set) Ceramic Capacitors on PWB, make sure that excessive pressure (2.94 N) or
shock is not applied.
If the Adjustable (pre-set) Ceramic Capacitor is mounted with a force exceeding the specifi ed pressure,
functions of the capacitor may degrade.
3 Attach the product in close proximity to the PWB.
Functions or characteristics of the capacitor may degrade if stress is concentrated at the terminals,
due to load and rotation torque caused during adjustment.
(2) Flux
1 Use flux containing less than 0.1 wt% (converted into chlorine) of halogen type substances. Do not use strong acid flux.
If the halogen content is high, or strong acid flux is used the remaining flux after soldering may cause corrosion of
terminals or reduction in insulation resistance.
2 Amounts of Flux used during soldering.
If not enough Flux is used, insufficient fixing may occur. If the amount is too large, flux may get inside the product
and may cause the characteristics or functions or the capacitor to degrade.
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Mar. 2006
