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CSTN
THIN FILM CURRENT SENSING CHIP RESISTOR

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Features
 • Thin film process
 • High power rating up to 3 watts in 2512 size
 • Tight tolerance down to ▽0.5%
 • Extremely low TCR down to ▽50 PPM/C
 • Resistance values from 50m to 1ohm
 • High purity alumina substrate for high power dissipation

 Applications
 • Power Management Applications
 • Switching Power Supply
• Over Current Protection in Audio Applications
• Voltage Regulation Module(VRM)
• DC-DC Converter, Battery Pack, Charger, Adaptor
• Automotive Engine Control
• Disk Drive
 • Portable Devices(PDA, Cell Phone)

GENERAL SPECIFICATIONS

Model

Power Rating

Operating Temp.
Range

Resistance Range[m目]

TCR[PPM/C]

▽0.5%

▽1%

CSTN02(0402)

1/16W

-55 - +155C

500 - 1000

▽100
▽50

CSTN03(0603)

1/10W

200 - 300
301 - 1000

▽100
▽50

CSTN05(0805)

1/8W

200 - 300
301 - 1000

▽100
▽50

CSTN06(1206)

1/4W

-

50 - 100

▽200
▽100
▽50

101 - 300
301 - 1000

CSTN10(2010)

3/4W

50 - 100
101 - 300
301 - 1000

▽200
▽100
▽50

CSTN12(2512)

1W

50 - 100
101 - 300
301 - 1000

▽200
▽100
▽50

CHARACTERISTICS                                                  Values in [ ] mean change in ohmic value after test

Temp. Coefficient
of Resistance

As Spec

+25/-55/+25/+125/+25C

Short Time
Overload

▽1%

RCWV*2.5 or Max. Overloading Voltage, 5sec.

Insulation
Resistance

>1000M目

Apply 100VDC for 1minute

Endurance

▽1%

70▽2C, Max. working voltage for 1000hrs with
 1.5 hrs ※ON§ and 0.5hrs ※OFF§

Damp Heat
with Load

▽0.5%

40▽2C 90-95% R.H. Max. working voltage for
 1000hrs with 1.5hrs ※ON§ and 0.5hrs ※OFF§

Bending
Strength

As Spec

Bending amplitude 3mm for 10sec.

Soldering
Ability

95%min coverage

245C▽5C, 2▽0.5sec

Resistance to
Soldering Heat

▽0.5%

260▽5C, 10▽1sec

Dielectric
Withstand Voltage

By Type

Apply  Max. Overload Voltage for 1minute

Thermal
Shock

▽0.5%

-55C - 150C, 100 cycles

Low Temperature
Operation

▽0.5%

1 hours, -65C followed by 45 minutes of RCWV

CONSTRUCTION

 1 Alumina Substrate
2 Bottom Electrode(Ag-Pb)
3 Top Electrode(Ag)
4 Edge Electrode(NiCr)
5 Barrier Layer(Ni)
6 External Electrode(Sn)
7 Resistor Layer(NiCr)
8 Overcoat(Epoxy)
9 Marking

DIMENSIONS

Model

Size(Inches)

L

W

T

D1

D2

Weight(g)
(1000pcs)

CSTN02

0402

1.00▽0.05

0.50▽0.05

0.32▽0.10

0.25▽0.10

0.20▽0.10

0.56

CSTN03

0603

1.60▽0.10

0.80▽0.10

0.45▽0.10

0.30▽0.20

0.30▽0.20

3.1

CSTN05

0805

2.00▽0.15

1.25▽0.15

0.55▽0.10

0.30▽0.20

0.40▽0.25

5.6

CSTN06

1206

3.05▽0.15

1.55▽0.15

0.55▽0.10

0.50▽0.30

0.40▽0.25

12.3

CSTN10

2010

5.00▽0.20

2.45▽0.15

0.60▽0.15

0.60▽0.30

0.50▽0.25

26.7

CSTN12

2512

6.35▽0.20

3.15▽0.15

0.60▽0.10

0.60▽0.30

0.55▽0.25

49.6

REEL SPECIFICATIONS

Model

Dimensions [mm]

Paper
Tape
[pcs]

Emboss
PlasticTape[pcs]

白A

白B

白C

W

T

CSTN02

178▽1.0

60▽1.0

13.5▽0.7

9.5▽1.0

11.5▽1.0

10,000

-

CSTN03

178▽1.0

60▽1.0

13.5▽0.7

9.5▽1.0

11.5▽1.0

5,000

-

CSTN05

178▽1.0

60▽1.0

13.5▽0.7

9.5▽1.0

11.5▽1.0

5,000

-

CSTN06

178▽1.0

60▽1.0

13.5▽0.7

9.5▽1.0

11.5▽1.0

5,000

-

CSTN10

178▽1.0

60▽1.0

13.5▽0.7

9.5▽1.0

15.5▽1.0

-

4,000

CSTN12

178▽1.0

60▽1.0

13.5▽0.7

9.5▽1.0

15.5▽1.0

-

4,000

PAPER TAPE SPECIFICATIONS

Model

Dimensions[mm]

A

B

W

E

F

P0

P1

P2

白D0

T

CSTN02

0.70▽.05

1.16▽.05

8.00
▽.10

1.75
▽.05

3.5
▽.05

4.00
▽.10

2.00▽.05

2.00
▽.05

1.55
▽.05

0.40▽.03

CSTN03

1.10▽.05

1.90▽.05

4.00▽.05

0.60▽.03

CSTN05

1.60▽.05

2.37▽.05

4.00▽.05

0.75▽.05

CSTN06

2.00▽.05

3.55▽.05

4.00▽.05

0.75▽.05

EMBOSSED TAPE SPECIFICATIONS

Model

Dimensions[mm]

A

B

W

E

F

P0

P1

P2

白D0

T

CSTN10

2.85▽.10

5.45▽.10

12.0▽.10

1.75▽.10

5.5▽.05

4.00▽.05

4.00▽.10

2.00▽.05

1.50▽.10

1.00▽.20

CSTN12

3.40▽.10

6.65▽.10

12.0▽.10

1.75▽.10

5.5▽.05

4.00▽.05

4.00▽.10

2.00▽.05

1.50▽.10

1.00▽.20

DERATING CURVE

ORDERING PROCEDURE EXAMPLE

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