Metal Element Current Sense Resistor
ULR Series
Features
Robust metal strip able to withstand high
temperature and high current.
Power raꢀngs up to 5W
Low TCR and Inductance
Resistance Range from 0.15mΩ to 10mΩ
RoHS compliant
AEC-Q200
Higher waꢁage devices feature PCB clearance gap to
maximize thermal performance
All parts are Pb-free and comply with EU Direcꢀve 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Electrical Data
Power
Power
Dielectric
Dielectric
TCR
TCR
(ppm/°C)
(ppm/°C)
Ambient
Ambient
Temperature (°C)
Temperature (°C)
Type
Type
Size
Size
Coating
Coating
Rating
Standard Resistance Value mΩ1
Standard Resistance Value mΩ
Tolerance (%) Withstanding
Rating
Tolerance (%) Withstanding
@80°C (W)
@80°C (W)
Voltage (V
Voltage (V
ULRG1 /
ULRG1 /
0.2, 0.25, 0.3, 0.4, 0.5, 0.6
0.2, 0.25, 0.3, 0.4, 0.5, 0.6
0.75, 1, 1.2, 2, 2.5, 3, 3.5, 4, 5, 5.5, 6, 7, 8, 9, 10
0.75, 1, 1.2, 2, 2.5, 3, 3.5, 4, 5, 5.5, 6, 7, 8, 9, 10
0.2, 0.25, 0.3, 0.4, 0.5
0.2, 0.25, 0.3, 0.4, 0.5
0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 5.5, 6, 7, 8, 9, 10
0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 5.5, 6, 7, 8, 9, 10
200
200
50
50
150
150
50
50
1206
1206
1
1
ULR1S
ULR1S
ULRG15 /
ULRG15 /
2010
2010
1.5
1.5
ULR15S
ULR15S
1
300
300
170
170
1
ULR2N
ULR2N
1020
1020
2
2
1.5, 2, 2.5, 3
1.5, 2, 2.5, 3
ULRG2 /
ULRG2 /
2
2
6.5, 7, 7.5, 8, 9, 10
6.5, 7, 7.5, 8, 9, 10
ULR2
ULR2
50
50
ULRG25 /
ULRG25 /
2.5
2.5
3.5, 4, 4.5, 5, 5.5, 6
3.5, 4, 4.5, 5, 5.5, 6
ULR25
ULR25
Green
Green
N/A
N/A
Underside
Underside
2512
2512
0.15, 0.25, 0.3, 0.4, 0.5, 0.75
0.15, 0.25, 0.3, 0.4, 0.5, 0.75
150
150
ULRG3 /
ULRG3 /
ULR3
ULR3
3
3
1, 1.5, 2, 2.5, 3
1, 1.5, 2, 2.5, 3
50
50
1, 5
1, 5
-55 to +170
-55 to +170
0.5, 0.75
0.5, 0.75
150
150
ULR5
ULR5
522
5
1, 1.5, 2, 2.5, 3
50
50
1, 1.5, 2, 2.5, 3
0.1
0.1
500
500
0.2, 0.25, 0.3, 0.4
350
350
0.2, 0.25, 0.3, 0.4
ULR3N
ULR3N
1225
1225
3
3
0.5
0.5
300
300
0.7, 0.75, 0.8, 0.9, 1.0
250
250
0.7, 0.75, 0.8, 0.9, 1.0
1.5, 2.0, 2.5, 3.0
1.5, 2.0, 2.5, 3.0
100
100
0.5, 0.75, 1, 1.5, 2
50
50
0.5, 0.75, 1, 1.5, 2
ULRB1 /
ULRB1 /
ULR1
ULR1
2.5, 3, 3.5
2.5, 3, 3.5
150
150
1
1
4, 4.5, 5, 5.5, 10
100
100
1, 5, 10
2512
2512
Black
Black
200
200
6, 6.5, 7, 7.5
6, 6.5, 7, 7.5
75
75
50
50
ULRB2 /
ULRB2 /
ULR2
ULR2
0.5, 0.75, 1, 1.5, 2
0.5, 0.75, 1, 1.5, 2
2
2
2.5, 3
2.5, 3
150
150
Notes: 1. For higher resistance values please refer to LRMA series.
Notes: 2. Terminal temp must not exceed 110°C
Performance Data
AEC-Q200 Table 7
Max. (add R0005)
Method
Green Underside
ref.
Test1
Black
1206 & 2010
1
1020, 2512 & 1225
3
4
High Temp. Exposure *
Temperature Cycling
Moisture Resistance
Biased Humidity
MIL-STD-202 Method 108
JESD22 Method JA-104
MIL-STD-202 Method 106
MIL-STD-202 Method 103
MIL-STD-202 Method 108
MIL-STD-202 Method 204
MIL-STD-202 Method 210
MIL-STD-202 Method 107
J-STD-002
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
0.5
1
6
1
1
1
7
8
Operational Life (Cyclic Load) *
Vibration
14
15
16
18
21
22
0.5
0.5
0.5
1
1
1
Resistance to Soldering Heat *
Thermal Shock *
Solderability
>95% coverage
Board Flex
AEC-Q200-005
∆R%
∆R%
∆R%
∆R%
0.5
1
1
1
Terminal Strength
AEC-Q200-006
0.25
0.5
Short Term Overload *
Resistance to Sulphur-Bearing Gas2
5 x Pr for 5s
EIA-977
N/A
1
Notes: 1. Full AEC-Q200 qualification applies to 2512 size. The 1206 and 2010 sizes have received the tests marked *.
2. Resistance to sulphur bearing gas has been tested for green underside construction only.
General Note
BI Technologies IRC Welwyn
TT Electronics reserves the right to make changes in product specificaꢀon without noꢀce or liability.
All informaꢀon is subject to TT Electronics’ own data and is considered accurate at ꢀme of going to print.
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12.22