CN-KRT
anti sulfuration chip networks
(convex termination)
features
•
Excellent anti-sulfuration characteristic
due to using high sulfuration-proof inner
top electrode material
•
More advancement in the mounting density than individual
chip resistors
•
Mounting cost reduction by decreasing the number
of parts mounting times
•
Easy soldering fillet inspection
•
Suitable for an image recognition mounter due to square
corner design
•
Marking: Black body color
•
Products with lead-free termination meet EU RoHS
requirements. EU RoHS regulation is not intended for
Pb-glass contained in electrode, resistor element and glass.
dimensions and construction
a2
W
C
t
Protective Outer
Coating
Electrode
Ceramic
Substrate
d
Resistive
Film
Inner
Electrode
a
L
p
b
resistors
EU
Type
CN1E2KRT
CN1E4KRT
L
W
c
Dimensions
inches
(mm)
d
t
a
a2
—
b
.007±.002
(0.17±0.05)
P*
.026
(0.65)
.020
(0.5)
.039±.004 .039±.004 .006±.004 .010±.004 .014±.004 .013±.004
(1.0±0.1) (1.0±0.1) (0.15±0.1) (0.25±0.1) (0.35±0.1) (0.33±0.1)
.079±.004 .039±.004 .006±.004 .010±.008 .014±.004 .012±.006 .016±.006 .006±.004
(2.0±0.1) (1.0±0.1) (0.15±0.1) (0.25±0.2) (0.35±0.1) (0.3±0.15) (0.4±0.15) (0.15±0.1)
* Referential values.
ordering information
CN
1
E
Size
1E
4
Number of
Resistors
2
4
K
Terminal
Convex
K: Convex type
with squared corners
RT
Termination
Material
RT: Sn
TD
Packaging
TD: Paper
BK: Bulk
103
Nominal
Resistance
3 digits
J
Tolerance
J: ±5%
Type
applications and ratings
Part
Desigation
CN1E2KRT
CN1E4KRT
Power
Rating w/
Element
0.063
Resistance
Range
J: ±5 E24
3~1M
T.C.R.
(×10
−6
/K)
±200: R≥10Ω
±400: R<10Ω
Max.
Working
Voltage
25V
Max.
Overload
Voltage
50V
Rated
Ambient
Temperature
+70°C
Operating
Temperature
Range
−55°C~+125°C
Taping & Q'ty/Reel
(pcs)
TD
10,000
Please note that network resistors generate higher heat rather than single flat chip resistor even under rated power output.
Rated voltage =
√
Power Rating × Resistance value or Max. working voltage, whichever is lower.
11/18/11
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
70
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
anti sulfuration chip networks
(convex termination)
environmental applications
Circuit Construction
R
CN1E2KRT
1
R
2
Derating Curve
100
% Rated Power
80
60
40
20
0
-60 -40 -20
-55
80 100 120 140
70
125
Ambient Temperature
(°C)
0
20
40
60
CN1E4KRT
R
1
R
2
R
1
R
2
R
3
R
4
R
1
=R
2
R
1
R
2
R
3
R
4
R
1
R
1
=R
2
=R
3
=R
4
R
2
R
3
R
4
R
5
R
6
R
7
R
8
あ1
あ1
あ1
R
1
R
2
R
3
R
4
R
5
R
6
R
7
R
8
あ1
Performance Characteristics
Parameters
Resistance
T.C.R.
Overload (Short time)
Resistance to
Soldering Heat
Rapid Change
of Temperature
Moisture Resistance
Endurance at 70°C
Low Temperature
Exposure
High Temperature
Exposure
Performance Requirements
∆R±%
Limit
Within specified
tolerance
Within specified T.C.R.
2
1
1
5
5
1
1
Typical
—
—
0.25
0.75
0.5
1
0.5
0.1
0.15
Test Methods
25°C
+25°C/−55°C and +25°C/+125°C
Rated voltage × 2.5 for 5s
260°C±5°C, 10s±1s
−55°C (30min.)/+125°C (30min.) 5 cycles
40°C ±2°C, 90%~95%RH, 1000h
1.5h ON/0.5h OFF cycle
70°C±2°C, 1000h
1.5h ON/0.5h OFF cycle
−55°C, 1h
+125°C, 1000h
Circuit Board Application
Vcc
あ1
IC
IC
あ1
Vcc
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
あ1
11/18/11
IC
IC
あ1
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
71
resistors
CN-KRT
Embedded System
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