KOA SPEER ELECTRONICS, INC.
SS-258 R6
AHA 6/20/08
Current Sensing Chip Resistor
UR73 Type
1. Features
I
Very low resistance, high precision reliability
I
Suitable for reflow and flow soldering
I
Products with lead-free terminations meet RoHS requirements. Pb located in glass material,
CERTIFIED
CERTIFIED
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Utilization of thick film
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Low T.C.R. achieved (±100 ppm/°C)
electrode and resistor element is exempt per Annex 1, exemption 5 of EU directive 2005/95/EC
Size
Code
NEW
a
W
L
a
2. Dimensions
UR73
Resistance
Range
24m ~ 100m
L
+0.1
(1.0
-0.05
)
Dimensions
inches
(mm)
W
h
a
+0.1
(0.5
-0.05
)
+.005
b
D1E
.039
+.004
.020
+.004
-.002
-.002
.016±.002 .010±.004 .012±.004
(0.4±0.05) (0.25±0.1) (0.3±0.1)
.02±.004 .014±.004
(0.55±0.1)
(0.5±0.1) (0.35±0.1)
.014±.004
(0.35±0.1)
.024±.008
(0.6±0.2)
.02±.008
(0.5±0.2)
.022±.004
D1J
Ni
Plating
10m ~ 27m
.063±.008 .031
-.004
30m ~ 100m
(1.6±0.2) (0.8
+0.15
)
-0.1
h
b
Protective
Coating
Resistive Inner
Film
Electrode
D2A
10m ~ 16m
.079±.008 .049±.008 .022±.004 .016±.008
18m ~ 30m
(2.0±0.2) (1.25±0.2) (0.55±0.1) (0.4±0.2)
Ceramic
Substrate
2A
L
a
.012
+.008
-.004
.079±.008 .049±.008 .02±.004 .016±.008
33m ~ 100m
(2.0±0.2) (1.25±0.2) (0.55±0.1) (0.4±0.2) (0.3
+0.2
)
-0.1
.039±.008
10m ~ 16m
.126±.008 .063±.008 .024±.004 .020±.008
(1.0±0.2)
18m ~ 27m
(3.2±0.2) (1.6±0.2) (0.6±0.1) (0.5±0.2)
.031±.008
(0.8±0.2)
+.008
.126±.008 .063±.008 .024±.004 .020±.012 .016
-.004
30m ~ 100m
(3.2±0.2) (1.6±0.2) (0.6±0.1) (0.5±0.3) (0.4
+0.2
)
-0.1
UR73D
W
a
D2B
h
b
Resistive
Film
Protective
Ceramic
Substrate Coating
Inner
Electrode
NEW
Ni
Plating
Solder
Plating
2B
D2H
.063±.012
10m ~ 30m
.197±.008 .098±.008 .026±.004 .026±.012
(1.6±0.3)
33m ~ 100m
(5.0±0.2) (2.5±0.2) (0.65±0.1) (0.65±0.3)
.026±.012
(0.65±0.3)
.079±.012
10m ~ 30m
.248±.008 .122±.008 .024±.004 .031±.012
(2.0±0.3)
33m ~ 100m
(6.3±0.2) (3.1±0.2) (0.6±0.1) (0.8±0.3)
.031±.012
(0.8±0.3)
D3A
3. Type Designation
The type designation shall be in the following form:
UR73
Type
UR73
UR73D
Size Code
1E: 0.125W
1J: 0.2 W
2A: 0.25 W
2B: 0.5 W
2H: 0.75W
3A: 1 W
I
2A
Termination
Material
T: Sn
T
Packaging
TP: 2mm pitch punch paper
(1E: 10,000 pcs/reel)
TD: 7" punched paper tape
(1J, 2A, 2B: 5,000 pcs/reel)
TE: 7" embossed plastic
(2H, 3A: 4,000 pcs/reel)
I
TD
Nominal
Resistance
All values less than 0.1Ω (100mΩ) are
expressed in mΩ with “L” as decimal.
Ex: 20mΩ = 20L0
R10
Tolerance
F: ±1%
F
PAGE 1 OF 4
I
Bolivar Drive
P.O. Box 547
I
Bradford, PA 16701
USA
I
814-362-5536
Fax 814-362-8883
I
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.
KOA SPEER ELECTRONICS, INC.
SS-258 R6
4. Applications & Ratings
Part
Designation
NEW
UR73D1E
UR73D1J
UR73D2A
UR732A
UR73D2B
UR732B
NEW
UR73D2H
UR73D3A
Power
Rating
1/8W (.125W)
T.C.R.
(ppm/°C)
Max.
±100
±500
±100
1/5W (.2W)
1/4W (.25W)
1/4W (.25W)
1/2W (.5W)
1/4W (.25W)
1/2W (.5W)*
3/4W (.75W)
1W (1W)
±200
±300
±250
±100
±250
±200
±100
±250
±250
±100
±250
±100
Resistance Range
F (±1%) E-24,
25m , 50m
47m - 100mΩ
25mΩ
47m - 100mΩ
30m - 43mΩ
10m - 27mΩ
10m - 30mΩ
47m - 100mΩ
33m - 43mΩ
10m - 27mΩ
47m - 100mΩ
30m - 43mΩ
10m - 30mΩ
33m - 100mΩ
10m - 30mΩ
33m - 100mΩ
0.086V
0.158V
0.116V
0.158V
0.274V
0.316V
0.216V
0.395V
0.290V
0.395V
0.685V
0.791V
-55°C
to
+125°C
0.141V
0.353V
Absolute
Maximum
Working
Voltage
0.111V
Maximum
Overload
Voltage
(5 sec. max.)
0.279V
Operating
Temperature
Range
* Please contact factory for Power Rating
5. Environmental Applications
Derating Curve
100
100
Surface Temperature Rise - UR73 & UR73D
UR73 33m
100
UR73D 10m
3A (1)
80
% Rated Power
60
40
20
0
-60 -40
-55
-20
0
80
70
Ambient Temperature
(∞C)
20
40
60
100 120
140
125
Temperature Rise
(∞C)
2B (.5W) (1)
2B (.5W) (2)
2A (1)
2A (2)
2B (.25W) (1)
2B (.25W) (2)
Temperature Rise
(∞C)
75
75
3A (2)
2H (1)
2B (1)
2H (2)
2B (2)
2A (1)
1J (1)
1E (1)
2A (2)
1J (2)
1E (2)
50
50
25
25
0
0
25
50
75
100
0
0
25
50
75
100
% Rated Power
1
2
% Rated Power
1
2
PAGE 2 OF 4
Bolivar Drive
I
P.O. Box 547
I
Bradford, PA 16701
I
USA
I
814-362-5536
I
Fax 814-362-8883
I
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.
KOA SPEER ELECTRONICS, INC.
SS-258 R6
6. Characteristics
Parameter
Resistance to Solder Heat
Solderability
Terminal Strength Bend
Vibration
T.C.R.
Short Time Overload
Pulse
Thermal Shock
High Temperature
Exposure
Moisture Resistance
Life
Requirement ∆ R
± (1.0% + 0.005Ω)
95% coverage minimum
± (1.0% + 0.005Ω)
± (0.5% + 0.005Ω)
Within specified
± (2.0% + 0.005Ω)
± (5.0% + 0.005Ω)
± (1.0% + 0.005Ω)
± (1.0% + 0.005Ω)
± (2.0% + 0.005Ω)
± (2.0% + 0.005Ω
Test Method
MIL-R-55342
π
4.7.7, 260°C ± 5°C 10 ± 1 sec.
4.17 235°C ± 5°C 2 + 0.5 sec.
5mm min. deflection in either direction for 10 sec.
Each directions (3) for 2 hours
4.8 -55°C/+25°C/125°C
MIL-R-55342
π
4.7.5, 2.5 x RCWV for 5 sec.
2.5 x RCWV, not exceeding maximum overload
voltage, 1 sec. ON, 25 sec. OFF, 10,000 cycles
4.19 -40°C (30 min.), +125°C ( 30 min.), 50 cycles
4.23 125°C ± 3°C, 1000 hrs
4.24 40°C ± 2°C 90 - 95% RH, 1000 hrs
4.25 70°C ± 3°C, 1000 hrs
Dimensions
millimeters
Component Size
2.0 X 1.25
3.2 X 1.6
1.0 X 0.5
1.6 X 0.8
2.0 X 1.25
3.2 X 1.6
5.0 X 2.5
5.0 X 2.5
6.4 X 3.2
6.4 X 3.2
7. Pad Dimensions
D
C
B
A
Type
UR73
Style
2A
2B
1E
1J
2A
2B
A
1.3
2.2
0.5
0.5
0.8
1.2
1.8
3.3
2.3
4.6
B
3.1
4.4
1.8
2.5
3.4
4.6
6.1
6.1
8.0
8.0
C
1.25
1.6
0.5
0.9
1.3
1.8
2.6
2.5
3.3
3.0
D
0.9
1.1
0.65
1.0
1.3
1.7
2.5
1.4
1.7
1.7
Soldering Pad
UR73D
2H
(10m~30mΩ)
Chip Resistor
2H
(33m~100mΩ)
3A
(10m~30mΩ)
3A
(33m~100mΩ)
8. Packaging Specifications
8.1 Leader and End Tape
7.87 (200)
15.75 (400)
1.97 (50)
Top tape
(Empty)
End Tape
(Empty)
(Top Tape)
Leader Tape
Tape running direction
PAGE 3 OF 4
I
Bolivar Drive
I
P.O. Box 547
I
Bradford, PA 16701
I
USA
I
814-362-5536
I
Fax 814-362-8883
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.
KOA SPEER ELECTRONICS, INC.
SS-258 R6
8. Packaging Specifications (Continued)
8.2 Dimensions of Punched Paper Tape
1.5
+0.1
-0
Carrier Tape
1.75±0.1
B
A
P
1
(TP)
W
T
1
2.0 4.0±0.1
Direction of feed
T
1
T
1
P
1
Type
1E
1J
UR73
UR73D
2A
2B
2H
3A
Component Size (mm)
L
1
1.6
2
3.2
5
6.3
W
0.5
0.8
1.25
1.6
2.5
3.1
T
0.35
0.45
0.5
0.6
0.6
0.6
Carrier
Tape
TP
TP
TD
TP
TD
TE
TD
TE
TE
TE
Quantity/
Reel
(Pieces)
10000
10000
5000
10000
5000
4000
5000
4000
4000
4000
Taping (mm)
A
1.15±0.1
1.9±0.1
1.9±0.1
2.4±0.2
2.4±0.2
2.4±0.2
3.5±0.2
3.5±0.2
5.35±0.2
6.65±0.2
B
0.65±0.1
1.1±0.1
1.1±0.08
1.65±0.2
1.65±0.2
1.6±0.2
2±0.2
1.9±0.2
2.9±0.2
3.44±0.2
W
8.0±0.2
8.0±0.2
8.0±0.2
8.0±0.2
8.0±0.2
8.0±0.2
8.0±0.2
8.0±0.2
12.0±0.1
12.0±0.1
P1
2±0.05
2±0.05
4.0±0.1
2±0.05
4.0±0.1
4.0±0.1
4.0±0.1
4.0±0.1
4.0±0.1
4.0±0.1
T1
0.45+0.2/-0
0.6+0.2/-0
0.6+0.2/-0
0.75+0.2/-0
0.75+0.2/-0
0.9±0.1
0.75+0.2/-0
1.0±0.1
1.0±0.15
1.0±0.15
Reel
Size
178
178
178
178
178
178
178
178
178
178
(Notes) Dotted lines are applicable to only “TP” and “TB.”
8.3 Reel specifications for taping
Reel
(mm)
Central hole
(Notes) Reel holes, shapes and
design are examples
øa
ø13
e
ød
Type
UR73, UR73D
ød (mm)
21
e (mm)
2
9. Lot Number (8 digits)
53
Production
Year, Month
12
Date
3001
Additional
Day Number
41
~
52
53
~
64
January 2006
December 2006
January 2007
December 2007
10. Marking & Coating Color
UR73
UR73D
Type
Tolerance
F (±1%)
Coating
Indigo
Marking Color
white / 4 digit
PAGE 4 OF 4
Bolivar Drive
I
P.O. Box 547
I
Bradford, PA 16701
I
USA
I
814-362-5536
I
Fax 814-362-8883
I
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.
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