CURRENT SENSING

Chip Precision Current Sensing Resistors

TCS

Tokenchina's current sense surface mount precision resistors can be specified for all power electronics designs, as well as a complete selection of industry standard power chip resistors for high power current sense applications.

All Tokenchina current sense resistors are available with Pb-free terminations to comply with RoHS requirements.


Features chip precision current sensing resistor

  • Resistance Values from 50mΩ to 1Ω, Hight Power rating up to 3W in 2512 Size
  • Extremely Low TCR down to ±50PPM/°C, Thin Film Process, Tight Tolerance down to ±0.5%
  • High Purity Alumina Substrate for High Power Dissipation, Products with Pb-free Terminations Meet RoHS Requirments

Applications

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

Dimensions (Unit: mm) - Chip Current Sense TCS

chip current sense resistors, Open Air Resistors Low Resistance Resistors
Type L W T D1 D2
TCS02 1.00±0.05 0.50±0.05 0.32±0.10 0.25±0.10 0.20±0.10
TCS03 1.60±0.10 0.80±0.10 0.45±0.10 0.30±0.20 0.30±0.20
TCS05 2.00±0.15 1.25±0.15 0.55±0.10 0.30±0.20 0.40±0.25
TCS06 3.05±0.15 1.55±0.15 0.55±0.10 0.50±0.30 0.40±0.25
TCS10 5.00±0.20 2.45±0.15 0.60±0.15 0.60±0.30 0.50±0.25
TCS12 6.35±0.20 3.15±0.15 0.60±0.10 0.60±0.30 0.55±0.25

Specifications - Current Sense TCS

Type Power Rating
at 70°C
Operating
Temp. Range
Resistance
Tolerance
Resistance
Range
TCR
TCS02
(0402)
1/16W -55 ~ +155°C ±0.5%
±1.0%
500mΩ~1000mΩ ±100PPM/°C
±50PPM/°C
TCS03
(0603)
1/10W ±0.5%
±1.0%
200mΩ~300mΩ
301mΩ~1000mΩ
±100PPM/°C
±50PPM/°C
TCS05
(0805)
1/8W
TCS06
(1206)
1/4W ±1.0% 50mΩ~100mΩ ±200PPM/°C
±100PPM/°C
±50PPM/°C
±0.5%
±1.0%
101mΩ~300mΩ
301mΩ~1000mΩ
TCS10
(2010)
3/4W ±0.5%
±1.0%
50mΩ~100mΩ
101mΩ~300mΩ
301mΩ~1000mΩ
±200PPM/°C
±100PPM/°C
±50PPM/°C
TCS12
(2512)
1W
  • Customer's specification, custom design, or ODM are welcomed on request.

High Power Rating Specifications - TCS 3W

Type Power Rating
at 70°C
Operating
Temp. Range
Resistance
Tolerance
Resistance
Range
TCR
TCS12
(2512)
3W -55 ~ +155°C ±1.0% 100mΩ~1000mΩ ±100PPM/°C

Paper Tape Packaging Specifications (Unit: mm)

Current Sense Precision Resistors - sense-resistor-cs5.jpg
Type A B W E F P0 P1 P2 ΦD0 T
TCS02 0.70±0.05 1.16±0.05 8.00±0.10 1.75±0.05 3.50±0.05 4.00±0.10 2.00±0.10 2.00±0.05 1.55±0.05 0.40±0.03
TCS03 1.10±0.05 1.90±0.05 8.00±0.10 1.75±0.05 3.50±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.55±0.05 0.60±0.03
TCS05 1.60±0.05 2.37±0.05 8.00±0.10 1.75±0.05 3.50±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.55±0.05 0.75±0.05
TCS06 2.00±0.05 3.55±0.05 8.00±0.10 1.75±0.05 3.50±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.55±0.05 0.75±0.05

Emboss Plastic Tape Packaging Specifications (Unit: mm)

Precision Low Ohmic Resistors with Low TCR sense-resistor-cs7.jpg
Type A B W E F P0 P1 P2 ΦD0 T
TCS10 2.85±0.10 5.45±0.10 12.0±0.10 1.75±0.10 5.5±0.05 4.00±0.05 4.00±0.10 2.00±0.05 1.50+0.10 1.00±0.20
TCS12 3.40±0.10 6.65±0.10 12.0±0.10 1.75±0.10 5.5±0.05 4.00±0.05 4.00±0.10 2.00±0.05 1.50+0.10 1.00±0.20

Marking for 0603

Marking Value
1R0 1.000Ω
R10 0.100Ω
R01 0.010Ω
101 0.101Ω
035 0.035Ω

Reel Specifications (Unit: mm) - TCS

Thin Film Chip Current Sensing Resistor
Type ΦA ΦB ΦC W T Paper
Tape(EA)
Emboss
Plastic Tape(EA)
TCS02 178.0±1.0 60.0±1.0 13.5±0.7 9.5±1.0 11.5±1.0 10,000 -
TCS03 178.0±1.0 60.0±1.0 13.5±0.7 9.5±1.0 11.5±1.0 5,000 -
TCS05 178.0±1.0 60.0±1.0 13.5±0.7 9.5±1.0 11.5±1.0 5,000 -
TCS06 178.0±1.0 60.0±1.0 13.5±0.7 9.5±1.0 11.5±1.0 5,000 -
TCS10 178.0±1.0 60.0±1.0 13.5±0.7 13.5±1.0 15.5±1.0 - 4,000
TCS12 178.0±1.0 60.0±1.0 13.5±0.7 13.5±1.0 15.5±1.0 - 4,000

Environmental Characteristics - Current Sense TCS

chip thin film current sensing resistors
Item Specification Test Method
Load Life ±1% RCWV, 70°C, 1.5 hours on ,0.5 hours off
Total 1000~1048 hours
MIL-STD-202F Method 108A
Solderability 95%min coverage 245°C±5°C, 2±0.5 (sec)
MIL-STD-202F Method 208H
Thermal Shock ±0.5% -55°C~150°C, 100cycles
MIL-STD-202F Method 107G
Bending Strength As Spec Bending Amplitude 3mm for 10seconds
JIS-C-5202-6.1.4
Short Time Overload ±1% RCWV*2.5 or Max Overloading Voltage 5seconds
JIS-C-5202-5.5
Insulation Resistance >1000MΩ Apply 100VDC for 1minute
MIL-STD-202F Method 302
Humidity (Steady State) ±0.5% 40°C, 90~95%RH, RCWV 1.5 hours ON,
0.5 hours OFF, total 1000 ~ 1048 hours
MIL-STD-202F Method 103B
Resistance to Dry Heat ±0.5% 96hours @ +155°C without load
JIS-C-5202-7.2
Low Temperature Operation ±0.5% 1hour, -65°C followed by 45minutes of RCWV
JIS-C-5202-7.1
Resistance to Soldering Heat ±0.5% 260±5°C, 10±1 seconds
MIL-STD-202F Method 210E
Dielectric Withstand Voltage by Type Apply Max Overload Voltage for l minute
MIL-STD-202F Method 301
Temperature Coefficient of Resistance As Spec +25/-55/+25/+125/+25°C
MIL-STD-202F Method 304
  • Humidity: <80%RH; Storage Temperature: 25±3°C

How to Order - Precision Chip Current Sense TCS

TCS 12 F TR F   R100  
Product Type
Dimensions(L×W)
02 (0402) 1.00×0.50mm
03 (0603) 1.60×0.80mm
05 (0805) 2.00×1.25mm
06 (1206) 3.05×1.55mm
10 (2010) 5.00×2.45mm
12 (2512) 6.30×3.15mm
Resistance Tolerance
D ±0.5%
F ±1%
Package
TR Taping Reel
P Bulk
TCR
D ±50PPM/°C
E ±100PPM/°C
F ±200PPM/°C
Power Rating
  Standard
R 3W
Resistance
R100 0.100Ω
1R00 1.000Ω
Marking
  Standard Marking
N No Marking

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TCS Series - Chip Precision Current Sensing Resistors