Thin Film Ultra Precision Resistors
Type RU73 Series
Key Features
High precision -
TCR 2ppm/°C and
3ppm/°C
Tolerance down to 0.01%
Thin film (nichrome)
Available in standard
and high power versions
Terminal finish
–
electroplated 100% matte
Sn
Applications
Communications
Industrial Controls
Instrumentation
Medical
TE Connectivity are proud to introduce this ultra-high precision thin film
chip resistor, sister to our successful RN73 series. With tolerances from
0.01% to 0.1% and TCRs of ±2PPM and ±3PPM this takes the chip
resistor into new areas of stability and precision. Available on tape and
reel for automatic insertion processes, the RU73 is available in 7 case
sizes, with a higher power version available for 0603 to 2010 sizes
Electrical Characteristics
–
Standard Power RU73
Rated Power @ 70°C
Min
Resistance
Range Ω
Max
Tolerance (%)
Code Letter
T.C.R. (PPM°C)
Code Letter
Selection Series
Max operating Voltage
Max. Overload voltage
Operating Temp. range
Insulation Resistance
(dry min.)
Stability
49R9
4K99
0.01
L
2
3
X
O
0402
0.063W
49R9
4K99
0.05
A
2
3
X
O
E24 & E96
25V
50V
-55 ~ +155°C
MΩ
0.5%
49R9
4K99
0.1
B
2
X
3
O
2
X
24R9
15K
0.01
L
3
O
0603
0.063W
24R9
15K
0.05
A
2
3
X
O
E24 & E96
50V
100V
-55 ~ +155°C
MΩ
0.5%
24R9
15K
0.1
B
2
X
3
O
1773270-1 CIS WR 09/2015
Dimensions in
millimetres unless
otherwise specified
Dimensions Shown for
reference purposes only.
Specifications subject to
change
For Email, phone or live chat,
go to: www.te.com/help
Thin Film Ultra Precision Resistors
Rated Power @ 70°C
Min
Resistance
Range Ω
Max
Tolerance (%)
Code Letter
T.C.R. (PPM°C)
Code Letter
Selection Series
Max operating Voltage
Max. Overload voltage
Operating Temp. range
Insulation Resistance
(dry min.)
Stability
24R9
30K
0.01
L
2
X
3
O
0805
0.1W
24R9
30K
0.05
A
2
3
X
O
E24 & E96
100V
200V
-55 ~ +155°C
MΩ
0.5%
2
X
24R9
30K
0.1
B
3
O
2
X
24R9
49K9
0.01
L
3
O
1206
0.125W
24R9
49K9
0.05
A
2
3
X
O
E24 & E96
150V
300V
-55 ~ +155°C
MΩ
0.5%
24R9
49K9
0.1
B
2
X
3
O
Rated Power @ 70°C
Min
Resistance
Range Ω
Max
Tolerance (%)
Code Letter
T.C.R. (PPM°C)
Code Letter
Selection Series
Max operating Voltage
Max. Overload voltage
Operating Temp. range
Insulation Resistance
(dry min.)
Stability
24R9
49K9
0.01
L
2
X
3
O
1210
0.25W
24R9
49K9
0.05
A
2
3
X
O
E24 & E96
150V
300V
-55 ~ +155°C
MΩ
0.5%
2
X
24R9
49K9
0.1
B
3
O
2
X
24R9
100K
0.01
L
3
O
2010
0.25W
24R9
100K
0.05
A
2
3
X
O
E24 & E96
150V
300V
-55 ~ +155°C
MΩ
0.5%
2
X
24R9
100K
0.1
B
3
O
Rated Power @ 70°C
Min
Resistance
Range Ω
Max
Tolerance (%)
Code Letter
T.C.R. (PPM°C)
Code Letter
Selection Series
Max operating Voltage
Max. Overload voltage
Operating Temp. range
Insulation Resistance
(dry min.)
Stability
24R9
100K
0.01
L
2
X
3
O
2512
0.5W
24R9
100K
0.05
A
2
3
X
O
E24 & E96
150V
300V
-55 ~ +155°C
MΩ
0.5%
2
X
24R9
100K
0.1
B
3
O
Operating Voltage=√
P*R) or Max. operating voltage listed above, whichever is lower.
O erload Voltage= . *√ P*R or Max. o erload oltage listed a o e, hi he er is lo er.
1773270-1 CIS WR 09/2015
Dimensions in
millimetres unless
otherwise specified
Dimensions Shown for
reference purposes only.
Specifications subject to
change
For Email, phone or live chat,
go to: www.te.com/help
Thin Film Ultra Precision Resistors
Electrical Characteristics
–
High Power RU73P
Rated Power @ 70°C
Min
Resistance
Range Ω
Max
Tolerance (%)
Code Letter
T.C.R. (PPM°C)
Code Letter
Selection Series
Max operating Voltage
Max. Overload voltage
Operating Temp. range
Insulation Resistance
(dry min.)
Stability
0603
0.1W
24R9
15K
0.05
A
3
O
2
3
X
O
E24 & E96
75V
150V
-55 ~ +155°C
MΩ
0.5%
2
X
0805
0.125W
24R9
30K
0.05
A
2
3
X
O
E24 & E96
150V
300V
-55 ~ +155°C
MΩ
0.5%
24R9
15K
0.01
L
2
X
24R9
15K
0.1
B
3
O
2
X
24R9
30K
0.01
L
3
O
24R9
30K
0.1
B
2
X
3
O
Rated Power @ 70°C
Min
Resistance
Range
Ω
Max
Tolerance (%)
Code Letter
T.C.R. (PPM°C)
Code Letter
Selection Series
Max operating Voltage
Max. Overload voltage
Operating Temp. range
Insulation Resistance
(dry min.)
Stability
24R9
49K9
0.01
L
2
X
3
O
1206
0.25W
24R9
49K9
0.05
A
2
3
X
O
E24 & E96
200V
400V
-55 ~ +155°C
MΩ
0.5%
2
X
24R9
30K
0.1
B
3
O
2
X
24R9
49K9
0.01
L
3
O
1210
0.33W
24R9
49K9
0.05
A
2
3
X
O
E24 & E96
200V
400V
-55 ~ +155°C
MΩ
0.5%
2
X
24R9
49K9
0.1
B
3
O
Rated Power @ 70°C
Min
Resistance
Range Ω
Max
Tolerance (%)
Code Letter
T.C.R. (PPM°C)
Code Letter
Selection Series
Max operating Voltage
Max. Overload voltage
Operating Temp. range
Insulation Resistance
(dry min.)
Stability
24R9
49K9
0.01
L
2
X
3
O
2010
0.75W
24R9
49K9
0.05
A
2
3
X
O
E24 & E96
200V
400V
-55 ~ +155°C
MΩ
0.5%
2
X
24R9
49K9
0.1
B
3
O
Operating Voltage=√ P*R or Max. operating oltage listed a o e, hi he er is lo er.
O erload Voltage= . *√ P*R or Max. o erload oltage listed a o e, hi he er is lo er.
1773270-1 CIS WR 09/2015
Dimensions in
millimetres unless
otherwise specified
Dimensions Shown for
reference purposes only.
Specifications subject to
change
For Email, phone or live chat,
go to: www.te.com/help
Thin Film Ultra Precision Resistors
Environmental Characteristics
Item
Temperature Coefficient
of Resistance (TCR)
Short Time Overload
Insulation Resistance
ΔR± .
Endurance
%
>7kΩ ΔR± . %
ΔR± .
ΔR± .
%
%
95% min. coverage
ΔR± .
%
By Type
ΔR± .
ΔR± .
%
%
ΔR± .
%
ΔR± . %
ΔR± . %
ΔR± . %
Requirement
Tol. ≤ . %
TOL. >0.05%
As per TCRs specified in Electrical Characteristics
tables
ΔR±0.05%
>
MΩ
ΔR± . %
ΔR±0.2%
Test Method
MIL-STD-202 Method 304
+25/-55/+25/+125/+25°C
JIS-C-5201-1 5.5
RCWV*2.5 or Max. overload voltage
whichever is lower for 5 seconds
MIL-STD-202 Method 302
Apply 100VDC for 1 minute
MIL-STD-202 Method 108A
70±2°C, RCWV for 1000 hrs with 1.5 hrs
ON and . hrs OFF
MIL-STD-202 Method 103B
40±2°C, 90~95% R.H. RCWV for 1000 hrs
with 1.5
hrs ON and . hrs OFF
JIS-C-5201-1 6.1.4
Bending amplitude 3 mm for 10 seconds
MIL-STD-202 Method 208H
245±5°C for 3 seconds
MIL-STD-202 Method 210E
260±5°C for 10 seconds
MIL-STD-202 Method 301
Max. overload voltage for 1 minute
MIL-STD-202 Method 107G
-55°C ~150°C, 100 cycles
JIS-C-5201-1 7.1
1 hour, -65°C, followed by 45 minutes of
RCWV
Damp Heat with Load
Bending Strength
Solderability
Resistance to Soldering
Heat
Dielectric Withstand
Voltage
Thermal Shock
Low Temperature
Operation
ΔR± . %
Storage Temperature: 25±3°C; Humidity < 80%RH
Derating Curve
100
Power ratio(%)
80
60
40
20
0
0
20
40
60
80
100
120
140
160
180
Ambient Temperature(℃)
For resistors operated in ambient temperatures above 70°C, power rating must be derated in accordance with this
curve
1773270-1 CIS WR 09/2015
Dimensions in
millimetres unless
otherwise specified
Dimensions Shown for
reference purposes only.
Specifications subject to
change
For Email, phone or live chat,
go to: www.te.com/help
Thin Film Ultra Precision Resistors
Construction and dimensions
L
D1
W
T
D2
Alumina Substrate
Bottom Electrode (Ag)
Top Electrode ( Ag)
Edge Electrode (NiCr)
Barrier Layer (Ni)
External Electrode (Sn)
Resistor Layer (NiCr)
Overcoat (Epoxy)
Marking
Size
0402
0603
0805
1206
1210
2010
2512
L (mm)
1.00±0.05
1.55±0.10
2.00±0.15
3.05±0.15
3.10±0.15
4.90±0.15
6.30±0.15
W (mm)
0.50±0.05
0.80±0.10
1.25±0.15
1.55±0.15
2.40±0.15
2.40±0.15
3.10±0.15
T (mm)
0.30±0.05
0.45±0.10
0.55±0.10
0.55±0.10
0.55±0.10
0.55±0.10
0.55±0.10
D1 (mm)
0.20±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
D2 (mm)
0.20±0.10
0.30±0.20
0.40±0.20
0.35±0.25
0.55±0.25
0.50±0.25
0.50±0.25
Weight (g)
(1000 Pcs.)
0.54
1.83
4.71
9.02
10
23.61
38.06
Suggested PCB Layout Plan
Size
0402
0603
0805
1206
1210
2010
2512
Recommended Land Pattern
A
B
0.50
0.50
0.80
1.00
1.00
1.00
2.00
1.15
2.00
1.15
3.60
1.40
4.90
1.60
C
0.60±0.2
0.90±0.2
1.35±0.2
1.70±0.2
2.50±0.2
2.50±0.2
3.10±0.2
1773270-1 CIS WR 09/2015
Dimensions in
millimetres unless
otherwise specified
Dimensions Shown for
reference purposes only.
Specifications subject to
change
For Email, phone or live chat,
go to: www.te.com/help
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