CHIP NETWORKS
EU
RoHS
CNN
Thin Film Chip Networks
■Construction
①
②
③
① Protective coating
② Resistive film
③ Inner electrode
④ Outer electrode
⑤ Ceramic substrate
⑤
④
Coating color：Black
■Features
・
Metal film chip network resistors.
・
Excellent in relative T.C.R. and relative accuracy.
・
Pair resistors for high precision OP-Amplifiers.
・
As custom products, any pairs between 1kΩ and 100kΩ are
available on request.
・
Suitable for reflow soldering.
・
Products with lead free termination meet EU-RoHS
requirements.
■Type Designation
Example
CNN
Product
Code
CNN
2A
Style
2
Number of
Elements
2
T
Terminal
Surface
Material
T :Sn
TE
Taping
103/103
B
A
Network Resistors
Nominal
Absolute Resistance
Resistance Resistance
Ratio
Tolerance
3 digits/
3 digits
B:±0.1％
C:±0.25％
A : 0.05％
B : 0.1％
■Reference Standards
IEC 60115-1
JIS C 5201-1
TE:4mm pitch
plastic
embossed
BK:Bulk
The terminal surface material lead free is standard.
Contact us when you have control request for environmental hazardous material other than the substance specified
by EU-RoHS.
For further information on taping, please refer to APPENDIX C on the back pages.
■Ratings
Type
（Inch size）
CNN2A
（0805×2）
POWER
Rating
0.05W/
Element
Resistance
（Ω）
1k, 10k, 100k
Resistance Tolerance
Absolute
B :±0.1％
C : ±0.25％
Relative
A : 0.05％
B : 0.1％
T.C.R.（×10
−6
/K）
Absolute
±25
Relative
5
Max. Working Max. Overload Rated Ambient
Voltage
Temperature
Voltage
50V
100V
＋70℃
Operating
Temperature
Range
－55℃½＋125℃
Taping &
Q'ty/Reel
（pcs）
TE
4,000
Rated voltage＝
√￣￣￣￣￣￣￣￣￣￣￣￣
or Max. working voltage, whichever is lower.
Power Rating×Resistance value
■Circuit Construction
③
④
③
④
●
Standard
Resistance
R1
R2
First marking number
1kΩ
1kΩ
3
3
1kΩ
10kΩ
3
4
1kΩ
100kΩ
3
5
10kΩ
10kΩ
4
4
10kΩ
100kΩ
4
5
100kΩ
100kΩ
5
5
44
①
②
R1
R2
Second marking number
●
Custom
①
②
Custom products of any pairs between 1kΩ and 100kΩ are available on request.
Please ask us beforehand for the custom products.
124
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Oct. 2020
Oct. 2021
www.koaglobal.com
■Dimensions（mm）
0.7±0.15
0.4±0.3
0.3±0.2
■Derating Curve
Percent rated power ％）
（
100
80
60
40
20
0
-60 -40 -20
-55
20 40 60 80 100 120 140
70
125
Ambient temperature
（℃）
0
0.4±0.3
1.27
2.54±0.2
2.0±0.2
44
Weight 9.70g/1000pcs
0.5±0.1
■Example of Application
10kΩ
1kΩ
−
＋
For resistors operated at an ambient temperature of 70℃ or higher, the power shall be
derated in accordance with the above derating curve.
Network Resistors
Network Resistors
■Performance
Test Items
Resistance
T.C.R.
Overload
（Short time）
Resistance to soldering heat
Rapid change of temperature
Moisture resistance
Endurance at 70℃
High temperature exposure
Performance Requirements
Absolute ΔR±
（％＋0.05Ω）
Limit
Within specified tolerance
Within specified T.C.R.
0.1
0.1
0.25
0.25
0.25
0.25
Typical
—
—
0.01
0.02
0.01
0.03
0.03
0.02
25℃
＋25℃/－55℃ and ＋25℃/＋125℃
Rated voltage×2.5 or Max. overload vol., whichever less, for 5s
260℃±5℃, 10s±1s
－55℃
（30min.）
/＋125℃
（30min.） cycles
5
40℃±2℃, 90%½95%RH, 1000h
1.5h ON/0.5h OFF cycle
70℃±2℃, 1000h
1.5h ON/0.5h OFF cycle
125℃, 100h
Test Methods
■Precautions for Use
・
The properly and electrostatically measured taping materials are used for the components, but attention should be paid to the fact that there is some danger the parts
absorb on the top tapes to cause a failure in the mounting and the parts are destructed by static electricity (1kV and more, Human Body Model 100pF 1.5kΩ) to
change the resistance in the conditions of an excessive dryness or after the parts are given vibration for a long time as they are packaged on the tapes. Similarly,
care should be given not to apply the excessive static electricity when mounting on the boards.
・
Ionic impurities such as flux etc. that are attached to these products or those mounted onto a PCB, negatively affect their moisture resistance, corrosion
＋
−
resistance, etc. The flux may contain ionic substances like chlorine, acid, etc. while perspiration and saliva include ionic impurities like sodium (Na ), chrorine (Cl )
etc. Therefore these kinds of ionic substances may induce electrical corrosion when they invade into the products. Either thorough washing or using RMA solder
and flux are necessary since lead free solder contains ionic substances. Washing process is needed, before putting on moisture proof material in order to prevent
electrical corrosion.
・
When heat-resistant masking tapes are attached to the chip resistors at the time of mounting and then detached, there is a possibility of exfoliation of the top
electrodes. It is known that the heat applied in the mounting process will enhance the adhesion strength of the tape adhesive so please avoid the use. If the use of
masking tapes are unavoidable, then please be sure not to attach the tape adhesives directly on the products.
When high-pressure shower cleaning is implemented, there is a possibility of exfoliation of the top electrodes caused by the water pressure stress so please avoid
the implementation.
If the implementation is unavoidable, then please evaluate the products beforehand.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Oct. 2020
Oct. 2021
www.koaglobal.com
125
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