TOKEN
TCS Current Sense Chip Resistors
Thin Film
Current Sense
Chip Resistors
TCS Surface Mount Resistors Make Sense of Current
Preview
The trend towards smaller handheld and portable electronics equipment has also increased the need for ultra
small current sensing resistors. Devices from the Token Electronics’ TCS series use a thin film construction that
enables them to achieve precision resistance tolerances, low noise and long-term stability.
The Token TCS Series precision resistors are nichrome thin film chip resistors with a temperature coefficient of
resistance of just ±50PPM/°C and tolerances of ±0.5%.
They offer excellent stability at high frequencies and are suitable for operating high voltages with more options
in the smaller form sizes of 0402, 0603, 0402, 0805, 1206, 2010, and 2512.
The full range of values is from 50mΩ to 1Ω. This low ohmic devices are particularly suited to car engine
management units to act as current sensing shunt resistors.
The TCS series is fully RoHS compliant and is supplied in tape and reel packaging ready for use with automated
assembly processes.
Contact us with your specific needs.
Features
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Thin Film Process.
Resistance Values from 50mΩ to 1Ω.
Very Tight Tolerance from ±1% to ±0.5%.
RoHS Requirments with Pb-free Terminations.
Extremely Low TCR from ±200 PPM/°C to ±50PPM/°C.
High Purity Alumina Substrate for High Power Dissipation.
Applications
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Voltage Regulation Module (VRM),
Portable Devices (PDA, Cell phone),
Disk Driver, Switching Power Supply,
Over Current Protection in Audio Application,
DC-DC Converter, Battery Pack, Charger, Adaptor,
Automotive Engine Control, Power Management Applications
Version 2010
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01 of 05
TOKEN
Dimensions (Unit: mm)
TCS Current Sense Chip Resistors
Marking
W
L
Sn Plating
Ni Plating
Thin Film Ni/cr Conductor
Alumina Ceramic Substrate
Overcoat
Resistive Element
D1
D1
T
D2
D2
Type
TCS02
TCS03
TCS05
TCS06
TCS10
TCS12
L
1.00±0.05
1.60±0.10
2.00±0.15
3.05±0.15
5.00±0.20
6.35±0.20
W
0.50±0.05
0.80±0.10
1.25±0.15
1.55±0.15
2.45±0.15
3.15±0.15
T
0.32±0.10
0.45±0.10
0.55±0.10
0.55±0.10
0.60±0.15
0.60±0.10
D1
0.25±0.10
0.30±0.20
0.30±0.20
0.50±0.30
0.60±0.30
0.60±0.30
D2
0.20±0.10
0.30±0.20
0.40±0.25
0.40±0.25
0.50±0.25
0.55±0.25
Standard Electrical Specifications
Type
TCS02 (0402)
TCS03 (0603)
TCS05 (0805)
TCS06 (1206)
TCS10 (2010)
TCS12 (2512)
Power Rating
at 70°C
1/16W
1/10W
1/8W
1/4W
3/4W
1W
-55 ~ +155°C
Operating
Temp. Range
Resistance
Tolerance
±0.5%
±1.0%
±0.5%
±1.0%
±1.0%
±0.5%
±1.0%
±0.5%
±1.0%
Resistance
Range
500mΩ~999mΩ
200mΩ~300mΩ
301mΩ~999mΩ
50mΩ~100mΩ
101mΩ~300mΩ
301mΩ~999mΩ
50mΩ~100mΩ
101mΩ~300mΩ
301mΩ~999mΩ
TCR
(PPM/°C)
±100
±50
±100
±50
±200
±100
±50
±200
±100
±50
Note: Token has the ability to manufacture following options based on customer’s requirement.
High Power Rating Electrical Specifications
Type
TCS12 (2512)
Power Rating
at 70°C
3W
Operating
Temp. Range
-55 ~ +155°C
Resistance
Tolerance
±1.0%
Resistance
Range
100mΩ~1Ω
TCR
(PPM/°C)
±100
02 of 05
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Version 2010
TOKEN
Power Derating Curve
100
TCS Current Sense Chip Resistors
Power Ration (%)
80
60
40
30
20
0
20
40
60 70 80 100
120 140 155
Ambient Temperature (°C)
Environmental Characteristics
Item
Temperature Coefficient of
Resistance
Short Time Overload
Specification
As Spec
±0.5%
Test Method
MIL-STD-202F Method 304
+25/-55/+25/+125/+25°C
JIS-C-5202-5.5
RCWV*2.5 or Max Overloading Voltage 5seconds
MIL-STD-202F Method 301
Apply Max Overload Voltage for l minute
MIL-STD-202F Method 302
Apply 100VDC for 1minute
MIL-STD-202F Method 107G
-55°C~150°C, 100cycles
MIL-STD-202F Method 108A
RCWV, 70°C, 1.5 hours on ,
0.5 hours off , Total 1000~1048 hours
MIL-STD-202F Method 103B
40°C, 90~95%RH, RCWV 1.5 hours ON,
0.5 hours OFF, total 1000 ~ 1048 hours
JIS-C-5202-7.2
96hours @ +155°C without load
JIS-C-5202-7.1
1hour, -65°C followed by 45minutes of RCWV
JIS-C-5202-6.1.4
Bending Amplitude 3mm for 10seconds
MIL-STD-202F Method 208H
245°C±5°C, 2±0.5 (sec)
MIL-STD-202F Method 210E
260±5°C, 10±1 second
Dielectric Withstand Voltage by Type
Insulation Resistance
Thermal Shock
Load Life
>1000MΩ
±0.5%
±1%
Humidity (Steady State)
Resistance to dry heat
±0.5%
±0.5%
Low Temperature Operation ±0.5%
Bending Strength
Solderability
As Spec
95%min coverage
Resistance to Soldering Heat ±0.5%
Note: Storage Temperature: 25±3°C; Humidity: <80%RH
Version 2010
http://www.token.com.tw/
rfq token.com.tw
03 of 05
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