RU73 Series

 RU73 Series
Precision Thin Film Chip Resistors
(Ultra High Power)
Feature




Advanced thin film technology
Very tight tolerance down to ±0.01%
Extremely low TCR down to ±5 PPM/°C
Wide resistance range 1 ohm ~ 3M ohm
PART NUMBERING SYSTEM
RU73
F
2A
TD
1001
C
Precision Thin Film Chip Resistors
(Ultra High Power)
TCR (PPM/°C)
Code
C
PPM/°C
±10
Code
Size
1J
0603
-----TD
TE
TP
2A
0805
F
± 25
2B
1206
G
± 50
2E
1210
2H
2010
3A
2512
Bulk
Paper Tape(Reel) (1H,1E,1J,2A,2B,2E)
Plastic Tape(Reel) (2H,3A)
Paper Tape(1E)
 Alumina Substrate
 Resistor Layer (NiCr)
Bottom
Electrode
(Ag)

 Overcoat (Epoxy)
 Top Electrode (Ag-Pd)  Marking
 Edge Electrode (NiCr)
 Barrier Layer (Ni)
 External Electrode (Sn)
Resistance Value
X
1% - 4 digits, First 3 are significant, Forth is multiplier (10 )
Resistance Tolerance
Code
A
Value
± 0.05%
B
± 0.1%
C
± 0.25%
D
± 0.5%
F
± 1%
Dimension Type
Size
L
W
T
D1
D2
(Inch)
Weight
(g)
(1000pcs)
1J
0603
1.55±0.10
0.80±0.10
0.45±0.10
0.30±0.20
0.30±0.20
1.83
2A
0805
2.00±0.15
1.25±0.15
0.55±0.10
0.30±0.20
0.40±0.20
4.71
2B
1206
3.05±0.15
1.55±0.15
0.55±0.10
0.42±0.20
0.35±0.25
9.02
2E
1210
3.10±0.15
2.40±0.15
0.55±0.10
0.40±0.20
0.55±0.25
10
2H
2010
4.90±0.15
2.40±0.15
0.55±0.10
0.60±0.30
0.50±0.25
23.61
3A
2512
6.30±0.15
3.10±0.15
0.55±0.10
0.60±0.30
0.50±0.25
38.06
Rev. 7b
RU73 Series
Precision Thin Film Chip Resistors
(Ultra High Power)
High Power Rating Electrical Specifications
Item
Power
Rating
at 70C
Max.
Operating
Operating
Temp. Range
Voltage
Resistance Range
Max.
Overload
Voltage
±0.01%
±0.05%
±0.1% ±0.25% ±0.5%
±1%
TCR
(PPM/C)
Type
1J (0603)
1/6W
-55 ~ +155C
100V
150V
－
10Ω - 332KΩ
2A (0805)
1/4W
-55 ~ +155C
150V
300V
－
10Ω - 499KΩ
2B (1206)
1/3W
-55 ~ +155C
200V
400V
－
10Ω ~1MΩ
±25
±50
±25
±50
±25
±50
24.9Ω – 49.9KΩ
2E (1210)
1/ 3W
-55 ~ +155C
200V
400V
24.9Ω 499KΩ
±5
±10
±15
±25
±50
±5
±10
±15
±25
±50
4.7Ω - 1MΩ
24.9Ω - 49.9KΩ
2H (2010)
3A (2512)


1/3W
-55 ~ +155C
200V
400V
1W
-55 ~ +155C
200V
400V
24.9Ω 499KΩ
4.7Ω - 1MΩ
-
4.7Ω –
100Ω
1Ω – 100Ω
±25
±50
Operating Voltage=√(P*R) or Max. operating voltage listed above, whichever is lower.
Overload Voltage=2.5*√(P*R) or Max. overload voltage listed above, whichever is lower.
(Lower Resistance: 1~10Ω ; High Power Rating)
Derating Curve
100
P ow er ratio(% )
Reflow
80
60
40
20
0
0
20
40
60
80
100
120
140
160
180
Ambient Temperature(℃)
Rev. 7b
RU73 Series
Precision Thin Film Chip Resistors
(Ultra High Power)
Environmental Characteristics
Requirement
Item
Tol. ≦ 0.05%
Temperature Coefficient of
Resistance (T.C.R.)
Test Method
Tol. > 0.05%
MIL-STD-202F Method 304
+25/-55/+25/+125/+25C
JIS-C-5201-1 5.5
RCWV*2.5 or Max. overload voltage for 5
seconds
MIL-STD-202F Method 302
Apply 100VDC for 1 minute
As Spec.
∆R±0.05%
Short Time Overload
∆R±0.2%
∆R±0.2% for high power rating
Insulation Resistance
>1000 MΩ
∆R±0.05%
Endurance
∆R±0.2%
MIL-STD-202F Method 108A
702C, Max. working voltage for 1000 hrs with
1.5 hrs “ON” and 0.5 hrs “OFF”
>7kΩ ∆R±0.5%
∆R±0.5% for high power rating
∆R±0.05%
Damp Heat with Load
MIL-STD-202F Method 103B
402C, 90~95% R.H. Max. working voltage for
1000 hrs with 1.5 hrs “ON” and 0.5 hrs “OFF”
JIS-C-5201-1 6.1.4
Bending amplitude 3 mm for 10 seconds
MIL-STD-202F Method 208H
2455C for 3 seconds
MIL-STD-202F Method 210E
260±5C for 10 seconds
MIL-STD-202F Method 301
Max. overload voltage for 1 minute
MIL-STD-202F Method 107G
-55C ~150C, 100 cycles
∆R±0.3%
∆R±0.5% for high power rating
Bending Strength
∆R±0.05%
Solderability
∆R±0.2%
95% min. coverage
Resistance to Soldering Heat
∆R±0.05%
Dielectric Withstand Voltage
∆R±0.2%
By Type
Thermal Shock
Low Temperature Operation
∆R±0.05%
∆R±0.25%
∆R±0.05%
∆R±0.2%
JIS-C-5201-1 7.1
1 hour, -65C, followed by 45 minutes of RCWV
∆R±0.5% for high power rating
Storage Temperature: 25±3C; Humidity < 80%RH
Packaging
Unit: mm
1J
178.0±1.0 60.0+1.0 13.5±0.7
9.5±1.0
11.5±1.0
5,000
Emboss
Plastic
Tape (EA)
-
2A
178.0±1.0 60.0+1.0 13.5±0.7
9.5±1.0
11.5±1.0
5,000
-
2B
178.0±1.0 60.0+1.0 13.5±0.7
9.5±1.0
11.5±1.0
5,000
-
2E
178.0±1.0 60.0±1.0 13.5±0.7
9.5±1.0
11.5±1.0
5,000
-
Type
ØA
ØB
ØC
W
T
Paper
Tape (EA)
2H
178.0±1.0 60.0+1.0 13.5±0.7 13.5±1.0 15.5±1.0
-
4,000
3A
178.0±1.0 60.0+1.0 13.5±0.7 13.5±1.0 15.5±1.0
-
4,000
Rev. 7b
RU73 Series
Precision Thin Film Chip Resistors
(Ultra High Power)
Paper Tape Specifications
Top Tape
Bottom Tape
ψ D0
E
A
F
B
T
Paper Tape
P1
Resistor
P2
P0
W
direction of unreeling
Unit: mm
Type
A
B
W
E
F
P0
P1
P2
ΦD0
T
1J
1.10±0.05 1.90±0.05 8.00±0.10 1.75±0.05 3.5±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.55±0.05 0.60±0.03
2A
1.60±0.05 2.37±0.05 8.00±0.10 1.75±0.05 3.5±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.55±0.05 0.75±0.05
2B
2.00±0.05 3.55±0.05 8.00±0.10 1.75±0.05 3.5±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.55±0.05 0.75±0.05
2E
2.75±0.05 3.40±0.05 8.00±0.10 1.75±0.05 3.5±0.05 4.00±0.05 4.00±0.10 2.00±0.05 1.60±0.10 0.75±0.05
Emboss Plastic Tape Specifications
Unit: mm
Type
A
B
W
E
F
P0
P1
P2
ØD0
T
2B
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
3A
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
Recommend Land Pattern
Unit: mm
C
B
A
Type
A
B
C
1J
0.80
1.00
0.90±0.2
2A
1.00
1.00
1.35±0.2
2B
2.00
1.15
1.70±0.2
2E
2.00
1.15
2.50±0.2
2H
3.60
1.40
2.50±0.2
3A
4.90
1.60
3.10±0.2
Rev. 7b