Current Sensing Chip Resistors
FEATURES
• SURFACE MOUNTABLE 0402 ~ 2512 CASE SIZE
• PRECISON TOLERANCE (±1%)
• Pb-FREE REFLOW COMPATIBLE
NCST Series
RoHS
Compliant
includes all homogeneous materials
*See Part Number System for Details
Operating
Temp. Range
(°C)
CHARACTERISTICS
Type
EIA
Size
0402
0603
0805
1206
2010
2512
Power Rating at
70°C
1/16W
1/10W
1/8W
1/4W
3/4W
1W
1% (F)
2% (G)
5% (J)
Resistance
Tolerance
1% (F)
2% (G)
5% (J)
1% (F)
2% (G)
5% (J)
Temperature
Coefficient (°C)
±200ppm (F)
±300ppm (G)
±400ppm (H)
±200ppm (F)
±300ppm (G)
±400ppm (H)
±600ppm (J)
±200ppm (F)
±300ppm (G)
±400ppm (H)
±600ppm (J)
Test Method
MIL-STD-202, Method 304
+25/-55/+25/+125/+25°C
MIL-STD-202, Mehtod 107G
-55°C ~ +125°C, 100 cycles
JIS-C-5202-5.5
RCWV x 2.5 or Max.
Overloading Voltage for 5
sec.
MIL-STD-202F Method 301
Apply Max. Overload
Voltage for 1 minute
MIL-STD-202F Method 302
Apply 100Vdc for 1 minute
JIS-C-5202-7.2
96 hrs @ 125°C without load
MIL-STD-202 Method 108
RCWV @ 70°C, cycles of 1.5
hours ON, 0.5 hrs OFF
for 1,000 ~ 1,048 hrs
MIL-STD-202F Method 210E
260°C ±5°C for
10 sec. ±1 sec.
MIL-STD-202 Method 103B
40°C, 90 ~ 95% RH, RCWV
1.5 hours ON, 0.5 hours
OFF, total 1000 ~ 1048 hours
JIS-C-5202-7.1
1 hour -65°C followed by 45
minutes of RCWV
MIL-STD-202F Method 208H
235°C ±5°C for 2 sec. ±0.5
sec.
JIS-C-5202-6.1.4
Bending Amplitude 3mm for
10 seconds
Resistance
Range
501mΩ ~ 1Ω
101mΩ ~ 500mΩ
50mΩ ~ 100mΩ
501mΩ ~ 1Ω
101mΩ ~ 500mΩ
51mΩ ~ 100mΩ
20mΩ ~ 50mΩ
501mΩ ~ 1Ω
51mΩ ~ 500mΩ
21mΩ ~ 50mΩ
10mΩ ~ 20mΩ
Resistance
Range (Codes)
R501 ~ 1R00
R101 ~ R500
R050 ~ R100
R501 ~ 1R00
R101 ~ R500
R051 ~ R100
R020 ~ R050
R501 ~ 1R00
R051 ~ R500
R021 ~ R050
R010 ~ R020
NCST04
NCST06
NCST10
NCST12*
NCST50*
NCST100*
-55°C ~ +155°C
*Available with a ±100ppm (E) TCR (100mΩ ~ 1Ω)
Item
Temperature
Coefficient of
Resistance
Thermal Shock
Specification
As Specified
PART NUMBER SYSTEM
NCST10 F R501 F TR F
RoHS compliant
±(0.5% +0.05Ω)
Short Time
Overload
Dielectric
Withstanding
Voltage
Insulation
Resistance
Resistance
to dry heat
Load Life
±(0.5% +0.05Ω)
Packaging: TR = Tape & Reel
TCR Code: E=100ppm, F=200ppm,
G=300ppm, H=400ppm, J=600ppm
Resistance Code: See examples
Tolerance Code: J=5%, G=2%, F=1%
Series and Size
by Type
>1000MΩ
±(0.5% +0.05Ω)
Power Derating Curve:
For operation above 70°C, power rating
must be derated according to the following chart:
100
Percentage of Power Rating
80
60
40
30
20
0
0
20
40
60 70 80
155°C
±(1% +0.05Ω)
Resistance to
Soldering Heat
Humidity
(Steady State)
Low Temperature
Operation
±(0.5% +0.05Ω)
100 120 140 160
±(1% +0.05Ω)
Temperature °C
±(0.5% +0.05Ω)
Solderability
95% min.
coverage
Bending Strength
®
±(0.5% +0.05Ω)
32
NIC COMPONENTS CORP.
www.niccomp.com
www.lowESR.com
www.RFpassives.com
www.SMTmagnetics.com
Current Sensing Chip Resistors
PAPER CARRIER TAPE DIMENSIONS (mm)
Type
NCST04
NCST06
NCST10
NCST12
A
0.67 ±0.03
1.10 ±0.05
1.60 ±0.05
2.00 ±0.05
B
1.15 ±0.03
1.90 ±0.05
2.37 ±0.05
3.55 ±0.05
∅
Do
NCST Series
P2
P0
φD
T
0.40 ±0.03
2.00
±0.05
4.00
±0.10
1.55
±0.05
0.60 ±0.03
0.75 ±0.05
W
F
E
P1
2.00 ±0.05
8.00
±0.10
3.50
±0.05
1.75
±0.05
4.00 ±0.10
E
F
Component
B
A
T
P
1
P
2
P
0
Forward Direction
EMBOSSED PLASTIC CARRIER DIMENSIONS (mm)
Type
NCST50
NCST100
A
2.85 ±0.10
3.40 ±0.20
B
5.45 ±0.10
6.65 ±0.10
W
12.00
±0.10
F
5.50
±0.05
E
1.75
±0.10
P1
4.00 ±0.05
P2
2.00
±0.05
T
P0
4.00
±0.05
φD
o
1.50
±0.05
T
0.80 ±0.10
REEL DIMENIONS (mm) AND QUANTITY
Type
NCST04
NCST06
NCST10
NCST12
NCST50
NCST100
178
±1.0
60
+0.5
13
±0.20
9.0
±0.50
A
B
C
W
Quantity
10,000
W
D0
P0
F
E
A
K
B
P
5,000
3.2
±1.50
4,000
C
B
W
®
A
NIC COMPONENTS CORP.
www.niccomp.com
www.lowESR.com
www.RFpassives.com
www.SMTmagnetics.com
W
35
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