WU73
wide terminal type low resistance, low T.C.R
flat chip resistors
EU
features
•
Wide terminal type flat chip resistor
•
High reliability and performance with T.C.R.
±75 x 10
-6
/K, resistance tolerance ±1%
•
Suitable for flow and reflow solderings
•
This product meets EU RoHS requirements.
EU RoHS regulation is not intended for Pb-glass
contained in electrode, resistor element and glass.
•
AEC-Q200 Qualified
Sn Plating
t
d
Ni Plating
Protective Resistive Inner
Electrode
Coating Film
Derating Curve
100
80
% Rated Power
% Rated Power
60
40
20
0
-60 -40 -20
-55
100
80
60
40
20
0
-60 -40 -20
-55
100
80
NEW
% Rated Power
resistors
L
c
c
W
Ceramic Substrate
0
20
40
60
80 100 120 140
70
Ambient Temperature
(°C)
160
155
dimensions and construction
Type
(Inch Size Code)
L
Dimensions
inches
(mm)
W
c
d
+.004
t
2B
(0612)
2B15
(0612)
.063±.006 .126±
-.012
.016±.008 .018±.006 .024±.004
(1.6±0.15)
+0.1
(0.4±0.2) (0.45±0.15) (0.6±0.1)
(3.2±
-0.3
)
.063±.006 .126±
-.012
.016±.008 .018±.006 .024±.004
(1.6±0.15)
+0.1
(0.4±0.2) (0.45±0.15) (0.6±0.1)
(3.2±
-0.3
)
+.004
WU73 2B15 (1.5W)
60
40
20
0
-60 -40 -20
-55
0
80 100 120 140 160
105
155
Terminal Part Temperature
(°C)
40
60
20
0
100
120 140 160
95
155
Terminal Part Temperature
(°C)
20
40
60
80
For resistors operated at an ambient temperature
of 70°C or above, the power rating shall be derated
in accordance with the above derating curve.
For resistors operated at a terminal part temperature of described for each size or above, the power
rating shall be derated in accordance with the above derating curve.
Please refer to the “Introduction of the derating curves based on terminal part temperature” in the
beginning of the catalog.
ordering information
WU73
Type
WU73
2B
Size
2B: 1W
New
2B15: 1.5W
T
Termination
Material
T : Sn
TD
Packaging
TD: 7" 4mm pitch
punched paper
For further information on
packaging, please refer to
Appendix A
10L0
Nominal
Resistance
4 digits: all values
less than 100mΩ are
expressed in mΩ with “L”
as decimal. Ex: 10mΩ =
10L0
F
Resistance
Tolerance
F: ±1%
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/08/17
80
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
WU73
wide terminal type low resistance, low T.C.R
flat chip resistors
applications and ratings
Part
Designation
Power
Rating
Rated
Ambient
Temperature
Rated
Terminal Part
Temperature
T.C.R.
(X 10
-6
/K)
±100
±75
±100
±100
±75
±100
Resistance
Range (Ω)
E-24, 25m, 50m
10m~12m
13m~27m
30m~100m
10m~12m
13m~27m
30m~100m
Resistance
Tolerance
Operating
Temperature
Range
-55°C to
+155°C
-55°C to
+155°C
resistors
WU732B
1.0W
70°C
115°C
F: ±1%
NEW
WU732B15
1.5W
—
95°C
F: ±1%
Rated voltage =
√Power
rating x resistance value
If any questions should arise whether to use the “Rated Ambient Temperature” or the “Rated Terminal Part Temperature,” please give priority
to the “Rated Terminal Part Temperature.” Prior to use and for more details refer to “Introduction of the derating curves on the terminal part
temperature” in the beginning of the catalog.
environmental applications
Device Temperature Data
250
Terminal Part Temperature Rise (°C)
Recommended
Pad
Patten Width
200
150
2B15-1.5W
100
50
2B-1W
0
0mm
10mm
20mm
30mm
40mm
50mm
Room Temperature 25°C
PCB: FR-4 t=1.6mm Cu foil thickness=35µm
While using under high power, the temperature of the
product may increase depending on the condition of heat
dissipation from PCB.
Be sure to check the terminal part temperature as well as
precautions for use on delivery specifications before use.
Pattern Width (mm)
Performance Characteristics
Parameter
Resistance
T.C.R.
Overload (Short time)
Resistance to Solder Heat
Bending Test
Rapid Change of Temperature
Moisture Resistance
Endurance at 70°C
High Temperature Exposure
Requirement
∆
R ±(%+0.005Ω)
Limit
Typical
Within specified
—
tolerance
Within specified
—
T.C.R.
±2%
±0.2%
±1%
±0.2%
±1%
±0.1%
±2%
±0.3%
±2%
±0.1%
±2%
±0.2%
±1%
±0.1%
Test Method
25°C
+25°C/-55°C and +25°C/+125°C
Rated Voltage x 2 for 5 seconds
260°C ± 5°C, 10 seconds ± 1 second
Holding point 90mm, Bending 1 time, Bending 5mm
-55°C (30 minutes), +125°C (30 minutes), 1000 cycles
40°C ± 2°C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
+155°C, 1000 hours
Additional environmental applications can also be found at www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/08/17
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
81
ARM Technology
京公网安备 11010802033920号
EEWORLD
