UR732ATTD33L0F [KOA]
Fixed Resistor, Metal Glaze/thick Film, 0.25W, 0.033ohm, 1% +/-Tol, 250ppm/Cel, Surface Mount, 0805, CHIP, ROHS COMPLIANT;
| 型号： | UR732ATTD33L0F |
| 厂家： | 
KOA SPEER ELECTRONICS, INC. |
| 描述： | Fixed Resistor, Metal Glaze/thick Film, 0.25W, 0.033ohm, 1% +/-Tol, 250ppm/Cel, Surface Mount, 0805, CHIP, ROHS COMPLIANT 电阻器 |
| 文件： | 总2页 (文件大小：300K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UR73
current sensing chip resistor
EU
features
• Very low resistance, high precision reliability
• Utilization of thick film
• Low T.C.R. achieved (±100 ppm/°C)
• Marking: Indigo body color with white marking
• Products with lead-free terminations meet EU RoHS
requirements. EU RoHS regulation is not intended for
Pb-glass contained in electrode, resistor element and glass.
dimensions and construction
Dimensions inches (mm)
Size
Code
Resistance
Range (Ω)
L
L
W
h
a
b
a
a
UR73
.039 +.004 .020 +.004
-.002
+0.1
-.002
.016±.002 .010±.004 .012±.004
24m ~ 100m
D1E
D1J
D2A
2A
+0.1
(0.4 0.05) (0.25 0.1) (0.3 0.1)
)
-0.05
W
b
(1.0
)
(0.5
-0.05
.022±.004
.031 +.005
10m ~ 27m
-.004
(0.55 0.1)
.063±.008
(1.6 0.2)
.02±.004 .014±.004
(0.5 0.1) (0.35 0.1)
(0.8 +0.15
)
Ni
Plating
30m ~ 100m
h
.014±.004
(0.35 0.1)
-0.1
.024±.008
(0.6 0.2)
.02±.008
(0.5 0.2)
Protective
Coating
Resistive Inner
Film Electrode
10m ~ 16m
18m ~ 30m
.079±.008 .049±.008 .022±.004 .016±.008
(2.0 0.2) (1.25 0.2) (0.55 0.1) (0.4 0.2)
Ceramic
Substrate
.012 +.008
-.004
.079±.008 .049±.008 .02±.004 .016±.008
(2.0 0.2) (1.25 0.2) (0.55 0.1) (0.4 0.2)
33m ~ 100m
(0.3 +0.2
)
L
-0.1
a
a
UR73D
.039±.008
(1.0 0.2)
10m ~ 16m
18m ~ 27m
.126±.008 .063±.008 .024±.004 .020±.008
(3.2 0.2) (1.6 0.2) (0.6 0.1) (0.5 0.2)
D2B
2B
.031±.008
(0.8 0.2)
W
b
.016 +.008
-.004
.126±.008 .063±.008 .024±.004 .020±.012
Solder
Plating
30m ~ 100m
(0.4 +0.2
)
(3.2 0.2) (1.6 0.2) (0.6 0.1) (0.5 0.3)
h
-0.1
Ni
Plating
.063±.012
(1.6 0.3)
.026±.012
(0.65 0.3)
Resistive
Film
Inner
Electrode
10m ~ 30m
.197±.008 .098±.008 .026±.004 .026±.012
(5.0 0.2) (2.5 0.2) (0.65 0.1) (0.65 0.3)
D2H
D3A
33m ~ 100m
Protective
Coating
Ceramic
Substrate
.079±.012
(2.0 0.3)
.031±.012
(0.8 0.3)
10m ~ 30m
.248±.008 .122±.008 .024±.004 .031±.012
(6.3 0.2) (3.1 0.2) (0.6 0.1) (0.8 0.3)
33m ~ 100m
ordering information
New Part #
UR73
2A
T
TD
R100
F
Power
Rating
Termination
Material
Nominal
Type
Packaging
Tolerance
F: ±1%
Resistance
UR73
UR73D
1E: 0.125W
1J: 0.2W
2A: 0.25W
2B: 0.5W
2H: 0.75W
3A: 1W
T: Sn
TP: 2mm pitch
punch paper
(1E)
TD: 7" punched
paper tape
All values less than
0.1Ω (100mΩ) are
expressed in mΩ with
“L” as decimal.
Ex: 20mΩ = 20L0
(1J, 2A, 2B)
TE: 7" embossed plastic
(2H, 3A)
For further information on packaging, please refer to Appendix A.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
1/10/11
38
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
UR73
current sensing chip resistor
applications and ratings
Absolute
Maximum
Working
Voltage
Maximum
Overload
Voltage
Resistance Range
T.C.R.
(ppm/°C)
Max.
Operating
Temperature
Range
Part
Designation
Power*
Rating
F (±1%) E-24,
25mΩ, 50mΩ
(5 sec. max.)
±100
±500
±100
±200
±300
±250
±100
±250
30mΩ - 100mΩ
24mΩ - 27mΩ
47mΩ - 100mΩ
30mΩ - 43mΩ
10mΩ - 27mΩ
10mΩ - 30mΩ
47mΩ - 100mΩ
33mΩ - 43mΩ
UR73D1E
UR73D1J
1/8W (.125W)
1/5W (.2W)
UR73D2A
UR732A
UR73D2B
UR732B
1/4W (.25W)
1/4W (.25W)
1/2W (.5W)
1/2W (.5W)
-55°C
to
+125°C
P•R
P•R x 2.5
√
√
±200
±100
±200
±250
±100
±250
±100
10mΩ - 27mΩ
47mΩ - 100mΩ
30mΩ - 43mΩ
10mΩ - 30mΩ
33mΩ - 100mΩ
10mΩ - 30mΩ
33mΩ - 100mΩ
UR73D2H
UR73D3A
3/4W (.75W)
1W (1W)
* Power rating is guaranteed by the Temperature Rise data shown below
environmental applications
Derating Curve
Surface Temperature Rise
UR73D 1J, 2A, 2B, 2H, 3A 10mΩ
UR73D 1E 24mΩ
UR73 2A, 2B 33mΩ
100
100
100
3A (1)
80
2H (1)
75
75
3A (2)
60
40
2B (1)
2H (2)
2B (1)
2B (2)
2A (1)
2B (2)
50
50
2A (1)
1J (1)
1E (1)
2A (2)
1J (2)
1E (2)
2A (2)
20
0
25
25
-60 -40 -20
-55
0
20
40
60
80 100 120
125
140
0
0
70
0
25
50
75
100
0
25
50
75
100
Ambient Temperature
(°C)
% Rated Power
% Power Rating
1
1
For resistors operated at an ambient temperature of 70°C
or above, a power rating shall be derated in accordance
with the above derating curve.
2
2
Regarding the temperature rise, the value of the temperature varies per conditions and
board for use since the temperature is measured under our measuring conditions.
Performance Characteristics
Requirement ∆ R ±(%+0.005Ω)
Parameter
Resistance
Limit
Typical
Test Method
Within specified
tolerance
—
25°C
Within specified
T.C.R.
T.C.R.
—
+25°C/+55°C and +25°C/+125°C
Overload (Short time)
±2%
±1%
±1%
±2%
±2%
±1%
±0.5%
±0.3%
±0.5%
±1%
Rated power x 2.5 for 5 seconds
260°C ± 5°C, 10 ± 1 second
Resistance to Solder Heat
Rapid Change of Temperature
Moisture Resistance
-55°C (30 minutes), +125°C (30 minutes), 100 cycles
40°C ± 2°C, 90%~95%RH, 1000 hours,
1.5 hr ON, 0.5 hr OFF cycle
Endurance at 70°C
±1%
70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
+125°C, 1000 hours
High Temperature Exposure
±0.3%
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/17/12
39
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
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