Resistors
LOW OHM CURRENT SENSING THICK FILM CHIP RESISTOR
The RS series low ohm current sensing thick film chip resistors are manufactured with Ruthenium-base which gives low inductance, high current capability.

Alumina Substrate

Edge Electrode

W (mm)

Bottom Electrode

Barrier Layer

Primary Overcoat

Top Electrode

External Electrode

Secondary Overcoat

SPECIFICATION

Type No.

Size (Inch) L (mm) W (mm) T (mm) D1 (mm) D2 (mm) Weight (g) (1000pcs)

RS-02

0402 1.00±0.05 0.50±0.05 0.35±0.05 0.20±0.10 0.20±0.10 0.620

RS-03

0603 1.60±0.10 0.80±0.10 0.45±0.10 0.30±0.20 0.30±0.20 2.042

RS-05

0805 2.00±0.10 1.25±0.10 0.50±0.10 0.35±0.20 0.40±0.20 4.368

RS-06

1206 3.10±0.10 1.55±0.10 0.55±0.10 0.55±0.25 0.55±0.20 8.947

RS-10

1210 3.10±0.10 2.60±0.15 0.55±0.10 0.50±0.25 0.50±0.20 15.959

RS-0A

2010 5.00±0.10 2.50±0.15 0.55±0.10 0.60±0.25 0.50±0.20 24.241

RS-12

2512 6.35±0.10 3.10±0.15 0.55±0.10 0.60±0.25 0.50±0.20 39.448
RS-
Product Type
RS
03
Dimensions

02: 0402

03: 0603

05: 0805

06: 1206

10: 1210

0A: 2010

12: 2512

F
Resistance Tolerance

F: ±1%2

J: ±5%

L
Function Code

L: Standard

P: High Power

7
Packaging Code

4: 7” Reel 4Kpcs

6: 7” Reel 10Kpcs

7: 7” Reel 5Kpcs

9: 10” Reel 8Kpcs

A: 10” Reel 10Kpcs

B: 10” Reel 20Kpcs

C: 13” Reel 40Kpcs

D: 13” Reel 20Kpcs

F: Bulk

0R047
Resistance

- 0R047: 0.0 47Ω

- - - 0 R1: 0.1Ω


“-“ to fill up 6 spaces

Derating Curve
Recommend Land Pattern

Type

A(mm) B(mm)/td> C(mm)

RS-02

0.50 0.45 0.60

RS-03

0.90 0.60 0.90

RS-05

1.20 0.70 1.30

RS-06

2.00 0.90 1.60

RS-10

2.00 0.90 2.80

RS-0A

3.80 0.90 2.80

RS-12

3.80 1.60 3.50
Soldering Condition
Recommend Land Pattern

Wave Soldering (Flow Soldering)

  • Time of IR reflow soldering at maximum temperature point 260°C:10s
  • Time of wave soldering at maximum temperature point 260°C:10s
  • Time of soldering iron at maximum temperature point 410°C:5s
Standard Electrical Specifications

Type | Item

Power Rating at 70º Operating Temp. Range Max. Operating Current (mΩ) Resistance Range TCR (PPM/°C)
±1% ±5%
RS-02 (0402) 1/16W -55 ~ +155°C 1.11A 50 - 91
100 - 976
±800
±500
RS-03 (0603) 1/10W -55 ~ +155°C 2.23A 20 - 47
50 - 91
100 - 976
±1200
±800
±500
RS-05 (0805) 1/8W -55 ~ +155°C 3.53A 10 - 18 20 - 47
50 - 91
100 - 976
±1500
±1200
±800
±500
RS-06 (1206) 1/4W -55 ~ +155°C 5.00A
RS-10 (1210) 1/3W -55 ~ +155°C 5.77A 10 - 18
20 - 91
100 - 976
±1500
±800
±500
RS-0A (2010) 3/4W -55 ~ +155°C 8.66A
RS-12 (2512) 1W -55 ~ +155°C 10.0A

Operating Voltage=√(P*R) ; Overload Voltage=2.5*√(P*R)

High Power Electrical Specifications

Type | Item

Power Rating at 70º Operating Temp. Range Max. Operating Current (mΩ) Resistance Range TCR (PPM/°C)
±1% ±5%
RS-02 (0402) 1/10W -55 ~ +155°C 1.40A 50 - 91
100 - 976
±800
±500
RS-03 (0603) 11/8W -55 ~ +155°C 2.50A 20 - 47
50 - 91
100 - 976
±1200
±800
±500
RS-05 (0805) 1/4W -55 ~ +155°C 5.00A 10 - 18 20 - 47
50 - 91
100 - 976
±1500
±1200
±800
±500
RS-06 (1206) 1/3W -55 ~ +155°C 5.77A
RS-10 (1210) 1/2W -55 ~ +155°C 7.07A 10 - 18
20 - 91
100 - 976
±1500
±800
±500
RS-0A (2010) 1W -55 ~ +155°C 10.0A
RS-12 (2512) 2W -55 ~ +155°C 14.1A

Operating Voltage=√(P*R) ; Overload Voltage=2.5* √(P*R)

Environmental Characteristics

Item

Requirement Test Method
±1% ±5%
Temperature Coefficient of Resistance (T.C.R.) As Spec JIS-C-5201-1 4.8
IEC-60115-1 4.8

-55°C~+125°C, 25°C is the reference temperature
Short Time Overload ±(1.0%+0.05Ω) ±(2.0%+0.05Ω) JIS-C-5201-1 4.13
IEC-60115-1 4.13

RCWV*2.5 or Max. Overload Voltage whichever is lower for 5 seconds, 2 seconds for High Power Series
Insulation Resistance ≥10G JIS-C-5201-1 4.6
IEC-60115-1 4.6

Max. Overload Voltage for 1 minute
Endurance ±(1.0%+0.10Ω) ±(2.0%+0.10Ω)) JIS-C-5201-1 4.25
IEC-60115-1 4.25.1

70±2°C, RCWV for 1000 hrs with 1.5 hrs “ON” and 0.5 hr “OFF”
Damp Heat with Load ±(1.0%+0.10Ω) ±(2.0%+0.10Ω)) JIS-C-5201-1 4.24
IEC-60115-1 4.24

40±2°C, 90~95% R.H., RCWV for 1000 hrs with 1.5 hrs “ON” and 0.5 hr “OFF”
Dry Heat ±(1.0%+0.05Ω) ±(1.5%+0.10Ω) JIS-C-5201-1 4.23
IEC-60115-1 4.23.2

at +155°C for 1000 hrs
Bending Strength ±(1.0%+0.05Ω) ±(1.0%+0.05Ω) JIS-C-5201-1 4.33
IEC-60115-1 4.33

Bending once for 5 seconds 2010, 2512 sizes: 2mm Other sizes: 3mm
Solderability 95% min. coverage JIS-C-5201-1 4.17
IEC-60115-1 4.17

245±5°C for 3 seconds
Resistance to Soldering Heat ±(0.5%+0.05Ω) ±(1.0%+0.05Ω) JIS-C-5201-1 4.18
IEC-60115-1 4.18

260±5°C for 10 seconds
Voltage Proof No breakdown or flashover JIS-C-5201-1 4.7
IEC-60115-1 4.7

1.42 times Max. Operating Voltage for 1 minute
Leaching Individual leaching area  5%
Total leaching area  10%
JIS-C-5201-1 4.18
IEC-60068-2-58 8.2.1

260±5°C for 30 seconds
Rapid Change of Temperature ±(0.5%+0.05Ω) ±(1.0%+0.05Ω) JIS-C-5201-1 4.19
IEC-60115-1 4.19

-55°C to +155°C, 5 cycles

RCWV(Rated Continuous Working Voltage)= √(P*R) or Max. Operating Voltage whichever is lower.

Storage Temperature: 15~28°C; Humidity < 80%RH

Packaging

Reel Specifications & Packaging Quantity

Type Packaging Quantity Tape Width Reel Diameter ΦA (mm) ΦB (mm) ΦC (mm) W (mm) T (mm)
RS-02 RS-02 10 K 8 mm 7 inch 178.5±1.5 60+1/-0 13.0±0.2 9.0±0.5 12.5±0.5
20 K 8 mm 10 inch 254±1.0 100±0.5 13.0±0.2 9.0±0.5 12.5±0.5
40 K 8 mm 13 inch 330±1.0 100±0.5 13.0±0.2 9.0±0.5 12.5±0.5
RS-03 Paper 5K 8 mm 7 inch 178.5±1.5 60+1/-0 13.0±0.2 9.0±0.5 12.5±0.5
RS-05 10K 8 mm 10 inch 254±1.5 100±0.5 13.0±0.2 9.5±0.5 13.5±0.5
RS-06 20K 8 mm 13 inch 330±1.0 100±0.5 13.0±0.2 9.5±0.5 13.5±0.5
RS-10
RS-0A Embossed 4K 12 mm 7 inch 178.5±1.5 60+1/-0 13.0±0.5 13.0±0.5 15.5±0.5
RS-12 8K 12 mm 10 inch 250±1.0 62±0.5 13.0±0.5 12.5±0.5 16.5±0.5
Paper Tape Specifications
Type A(mm) B(mm) W(mm) E(mm) F(mm) P0(mm) P1(mm) P2(mm) ΦD0(mm) Tmm)
RS-02 0.65±0.10 1.15±0.10 8.0±0.20 1.75±0.10 3.50±0.05 4.00±0.10 2.00±0.05 2.00±0.05 1.50+0.1,-0 0.45±0.10
RS-03 1.10±0.10 1.90±0.10 8.0±0.20 1.75±0.10 3.50±0.05 4.00±0.10 4.00±0.05 2.00±0.05 1.50+0.1,-0 0.70±0.10
RS-05 1.60±0.10 2.40±0.20 8.0±0.20 1.75±0.10 3.50±0.05 4.00±0.10 4.00±0.05 2.00±0.05 1.50+0.1,-0 0.85±0.10
RS-06 1.90±0.10 3.50±0.20 8.0±0.20 1.75±0.10 3.50±0.05 4.00±0.10 4.00±0.05 2.00±0.05 1.50+0.1,-0 0.85±0.10
RS-10 2.90±0.10 3.50±0.20 8.0±0.20 1.75±0.10 3.50±0.05 4.00±0.10 4.00±0.05 2.00±0.05 1.50+0.1,-0 0.85±0.10
Paper Tape Specifications
Type A(mm) B(mm) W(mm) E(mm) F(mm) P0(mm) P1(mm) P2(mm) ΦD0(mm) Tmm)
RS-0A 2.8±0.10 5.5±0.10 12.0±0.30 1.75±0.10 5.5±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.50+0.1,-0 1.2+0
RS-12 3.5±0.10 6.7±0.10 12.0±0.30 1.75±0.10 5.5±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.50+0.1,-0 1.2+0
Marking

No Marking for 0402


1%, 5% for 0805/1206/1210/2010/2512: 4 digits marking

Example:

Resistance 47mΩ 75mΩ 15mΩ 750mΩ 820mΩ
Marking R047 R075 R015 R750 R820

5% for 0603: 3 digits marking in E24


1% for 0603: 3 digits marking with under-line in E96 (non-including E24 series)

3 digits marking for E24 or R value suffix is zero in E96: R10=100mΩ; R28=280mΩ
3 digits marking for E96: 243=243mΩ; 511=511mΩ