Precision Thin Film Chip Resistors
RU73 Series
(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
P
ART
N
UMBERING
S
YSTEM
RU73
Precision Thin Film Chip Resistors
(Ultra High Power)
TCR (PPM/°C)
Code
C
PPM/°C
±10
Code
Size
------
TD
TE
TP
1J
0603
2A
0805
F
± 25
2B
1206
G
± 50
2E
1210
2H
2010
3A
2512
F
2A
TD
1001
C
Bulk
Paper Tape(Reel) (1H,1E,1J,2A,2B,2E)
Plastic Tape(Reel) (2H,3A)
Paper Tape(1E)
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%
Alumina Substrate
Resistor Layer (NiCr)
Bottom Electrode (Ag)
Overcoat (Epoxy)
Top Electrode (Ag-Pd)
Marking
Edge Electrode (NiCr)
Barrier Layer (Ni)
External Electrode (Sn)
Dimension
Type
1J
2A
2B
2E
2H
3A
Size
(Inch)
0603
0805
1206
1210
2010
2512
1.55±0.10
2.00±0.15
3.05±0.15
3.10±0.15
4.90±0.15
6.30±0.15
0.80±0.10
1.25±0.15
1.55±0.15
2.40±0.15
2.40±0.15
3.10±0.15
0.45±0.10
0.55±0.10
0.55±0.10
0.55±0.10
0.55±0.10
0.55±0.10
0.30±0.20
0.30±0.20
0.42±0.20
0.40±0.20
0.60±0.30
0.60±0.30
0.30±0.20
0.40±0.20
0.35±0.25
0.55±0.25
0.50±0.25
0.50±0.25
L
W
T
D1
D2
Weight
(g)
(1000pcs)
1.83
4.71
9.02
10
23.61
38.06
Rev. 7b
Precision Thin Film Chip Resistors
RU73 Series
(Ultra High Power)
High Power Rating Electrical Specifications
Item
Type
1J (0603)
2A (0805)
2B (1206)
1/6W
1/4W
1/3W
-55 ~ +155C
-55 ~ +155C
-55 ~ +155C
100V
150V
200V
150V
300V
400V
－
－
－
10Ω - 332KΩ
10Ω - 499KΩ
10Ω ~1MΩ
24.9Ω – 49.9KΩ
2E (1210)
1/ 3W
-55 ~ +155C
200V
400V
24.9Ω -
499KΩ
4.7Ω - 1MΩ
24.9Ω - 49.9KΩ
2H (2010)
1/3W
-55 ~ +155C
200V
400V
24.9Ω -
499KΩ
4.7Ω - 1MΩ
±25
±50
±25
±50
±25
±50
±5
±10
±15
±25
±50
±5
±10
±15
±25
±50
1Ω – 100Ω
±25
±50
Power
Rating
at 70C
Max.
Operating
Operating
Temp. Range
Voltage
Max.
Overload
Voltage
Resistance Range
±0.01%
±0.05%
±0.1% ±0.25% ±0.5%
±1%
TCR
(PPM/C)
3A (2512)
1W
-55 ~ +155C
200V
400V
-
4.7Ω –
100Ω
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
Reflow
100
P ow er ratio(% )
80
60
40
20
0
0
20
40
60
80
100
120
140
160
180
Ambient Temperature(℃)
Rev. 7b
Precision Thin Film Chip Resistors
RU73 Series
(Ultra High Power)
Environmental Characteristics
Item
Temperature Coefficient of
Resistance (T.C.R.)
Short Time Overload
Insulation Resistance
∆R±0.05%
Endurance
∆R±0.05%
Requirement
Tol.
≦
0.05%
Tol. > 0.05%
Test Method
MIL-STD-202F Method 304
+25/-55/+25/+125/+25C
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
MIL-STD-202F Method 108A
702C, Max. working voltage for 1000 hrs with
1.5 hrs “ON” and 0.5 hrs “OFF”
MIL-STD-202F Method 103B
402C, 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
2455C for 3 seconds
MIL-STD-202F Method 210E
260±5C for 10 seconds
MIL-STD-202F Method 301
Max. overload voltage for 1 minute
MIL-STD-202F Method 107G
-55C ~150C, 100 cycles
JIS-C-5201-1 7.1
1 hour, -65C, followed by 45 minutes of RCWV
As Spec.
∆R±0.2%
∆R±0.2%
for high power rating
>1000 MΩ
∆R±0.2%
>7kΩ
∆R±0.5%
∆R±0.5%
for high power rating
∆R±0.05%
∆R±0.3%
Damp Heat with Load
Bending Strength
Solderability
Resistance to Soldering Heat
Dielectric Withstand Voltage
Thermal Shock
Low Temperature Operation
∆R±0.5%
for high power rating
∆R±0.05%
∆R±0.2%
95% min. coverage
∆R±0.05%
By Type
∆R±0.05%
∆R±0.05%
∆R±0.25%
∆R±0.2%
∆R±0.2%
∆R±0.5%
for high power rating
Storage Temperature: 25±3C; Humidity < 80%RH
Packaging
Unit: mm
Type
1J
2A
2B
2E
2H
3A
ØA
ØB
ØC
W
9.5±1.0
9.5±1.0
9.5±1.0
9.5±1.0
T
11.5±1.0
11.5±1.0
11.5±1.0
11.5±1.0
Paper
Tape (EA)
5,000
5,000
5,000
5,000
-
-
178.0±1.0 60.0+1.0 13.5±0.7
178.0±1.0 60.0+1.0 13.5±0.7
178.0±1.0 60.0+1.0 13.5±0.7
178.0±1.0 60.0±1.0 13.5±0.7
Emboss
Plastic
Tape (EA)
-
-
-
-
4,000
4,000
178.0±1.0 60.0+1.0 13.5±0.7 13.5±1.0 15.5±1.0
178.0±1.0 60.0+1.0 13.5±0.7 13.5±1.0 15.5±1.0
Rev. 7b
Precision Thin Film Chip Resistors
RU73 Series
(Ultra High Power)
Paper Tape Specifications
Bottom Tape
Top Tape
ψ
D
0
A
B
E
F
W
T
Paper Tape
Resistor
P
1
P
2
P
0
direction of unreeling
Unit: mm
Type
1J
2A
2B
2E
A
B
W
E
F
P0
P1
P2
ΦD0
T
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
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
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
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
2B
3A
A
2.85±0.10
3.40±0.10
B
5.45±0.10
6.65±0.10
W
12.0±0.10
12.0±0.10
E
1.75±0.10
1.75±0.10
F
5.5±0.05
5.5±0.05
P
0
4.00±0.05
4.00±0.05
P
1
4.00±0.10
4.00±0.10
P
2
2.00±0.05
2.00±0.05
ØD
0
1.50+0.10
1.50+0.10
T
1.00±0.20
1.00±0.20
Recommend Land Pattern
Unit: mm
Type
1J
2A
2B
2E
2H
A
0.80
1.00
2.00
2.00
3.60
4.90
B
1.00
1.00
1.15
1.15
1.40
1.60
C
0.90±0.2
1.35±0.2
1.70±0.2
2.50±0.2
2.50±0.2
3.10±0.2
C
B
A
3A
Rev. 7b
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