Metal Strip Current Sense
Metal Strip Current Sense
Metal Strip Current Sense
Resistors Surface Mount
Resistors Surface Mount
Resistors Surface Mount
ULR Series
·
Resistance R0005
R0005 (0.5m )
R015 (15mΩ)
)
·
Resistance
(0.5mΩ) to
to R015 (15m
ULR Series
·
Low TCR, Low inductance
·
Low TCR, Low inductance
·
Designed
R0005
for current sensing
(15m
·
Designed
(0.5m ) to R015
in power
·
Resistance
for current sensing in power
)
electronic systems
electronic systems
·
Low inductance
·
Low TCR,
Solid metal element withstands high current surges
·
for
compliant
·
Designed
RoHS
element
sensing in power electronic
surges
Solid metal
current
withstands high current
systems
·
Solid metal element withstands high current surges
RoHS
·
AEC-Q200 Qualified
compliant
AEC-Q200 Qualified
·
RoHS compliant
·
AEC-Q200 Qualified
Electrical Data
ULR1S
Footprint size
Electrical
rating at 80°C
Data
Power
Resistance range 1
1206
watts
ohms
volts
ppm/°C
%
1.0
ULR1
2512
1.0
R0005
200V
ULR15S
2010
1.5
R001 to
ULR15S
R01
Welwyn Components
Welwyn Components
ULR Series
ULR2
2512
2.0
R0005
200V
ULR25
2512
2.5
R0035
ULR25
to R006
200V
ULR3
2512
3.0
R0005
ULR3
to R003
200V
Footprint size
R001
ULR1S
to R01
ULR1
R015
to
Isolation voltage
1206
1.0
200V
50
2512
2010
1.5
ULR2
to R01
2512
2.0
R0005
50
to R01
200V
1(F), 5(J)
Black/Green
200V
2512
2.5
2512
3.0
Power rating at 80°C
Resistance range 1
TCR
watts
ohms
1.0
75,100,
50,
below
R001 to R01
200V
50
R0005
150
50
See table
R001 to R01
to R015
200V
200V
None
R0035
50
to R006
200V
Green
50, 75, 100
See
R0005
table
below
to R003
Isolation voltage
volts
Resistance tolerance
Protective coating 2
200V
50, 75, 100
See table
below
Green
None
50, 75,100,
Black/Green
TCR
Standard values
ppm/°C
Ambient temperature range °C
150
See table
below
See table below for available values
50
50
-55 to +170
50
Note 1:
For
above 0R015 refer to our LR / LRF Series
Resistance tolerance
values
%
Note 2:
Protective coating 2
Colour of coating relates to solder process suitability, see Construction
None
None
Black/Green
1(F), 5(J)
Black/Green
Green
Green
Standard values available
Standard values
ULR1S
Ambient temperature range °C
Value
Coat
TCR
(non-standard values may be available to
table below for available values
See
order - consult factory
ULR2
to +170
ULR25
-55
Coat
TCR
Coat
TCR
Black
50
Black
50
Black
order - consult
50
factory
Black
50
Black
50
ULR2
ULR25
ULR3
Coat
TCR
Green
100
Green
100
Green
50
Green
50
Green
ULR3
50
Green
75
Coat
TCR
Green
75
100
Green
ULR1
ULR15S
Coat
TCR
Coat
TCR
Note 1:
For values above 0R015 refer to our LR / LRF Series
R0005
Black
50
Note 2:
Colour of coating relates to solder process suitability, see Construction
R00075
Black
50
R001
None
Black
50
50
Standard values available
50
(non-standard values may
None
be available to
R0015
None
50
Black
50
None
50
R002
None
50
Black
50
None
50
ULR1S
ULR1
ULR15S
Value
R0025
None
50
Black
150
Coat
None
TCR
50
Coat
TCR
Coat
TCR
R003
None
50
150
None
50
R0005
Black
Black
50
R0035
None
50
Black
150
None
50
R00075
Black
50
R004
None
50
Black
100
None
50
R001
None
50
Black
Black
50
R0045
None
50
100
None
None
50
50
R0015
None
50
Black
Black
50
R005
None
50
100
None
None
50
50
R002
None
50
Black
Black
50
R0055
None
50
100
None
None
50
50
R0025
None
50
Black
Black
150
R006
None
50
75
None
None
50
50
R007
None
50
75
None
None
50
50
R003
None
50
Black
Black
150
R008
None
50
R0035
None
50
Black
150
None
None
50
50
R009
None
50
R004
None
50
Black
100
None
None
50
50
R01
None
50
R0045
None
50
Black
100
None
None
50
50
R011
Green
50
None
R005
None
50
Black
100
50
R012
Green
50
R0055
None
50
Black
100
None
50
R015
Green
50
Coat
Black
Black
Black
Black
Black
Green
Green
Green
Green
TCR
50
50
50
50
50
50
50
50
50
Coat
Green
Green
Green
Green
Green
Green
TCR
50
50
50
50
50
50
Green
Green
Green
Green
Green
Green
100
50
50
50
75
75
R006
R007
R008
R009
R01
R011
R012
R015
None
50
Black
75
None
50
None
50
Black
75
None
50
Green
50
General Note
50
None
None
50
Green
50
Welwyn Components reserves the right to make changes in product specification without notice or liability.
None
50
None
50
Green
50
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
None
50
None
50
Green
50
Green
· Bedlington, Northumberland NE22 7AA, UK
50
© Welwyn Components Limited
Telephone: +44 (0)1670 822181
Green
· Facsimile: +44 (0)1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
50
Green
50
Green
Green
Green
Green
Green
Green
50
50
50
50
50
50
A subsidiary of
TT electronics plc
08.10
General Note
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
A subsidiary of
TT electronics plc
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
08.10
02. 12
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
© TT electronics plc
Telephone: +44 (0)1670 822181 · Facsimile: +44 (0)1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Metal Strip Current Sense
Metal Strip Current Sense
Resistors Surface Mount
Resistors Surface Mount
ULR Series
ULR Series
Welwyn Components
Construction
Black coat
A low TCR resistance alloy plate, with tin plated connection bands is protectively coated on the upper and lower
faces and numerically marked with the resistance value. This part is suitable for wave or IR reflow soldering.
Green coat
A low TCR resistance alloy plate is grooved to set the final resistance, the lower faces are tin plated for
connections, and it is protectively coated on the upper and lower faces and numerically marked with the resistance
value. This part is ONLY suitable for IR reflow soldering.
Uncoated
A low TCR resistance alloy plate is grooved to set the final resistance and the lower face only is protected with an
epoxy coating. The lower faces are tin plated for connections. This part is ONLY suitable for IR reflow soldering.
Marking
Only 2512 size parts are marked. For values which are integer numbers of milliohms, the marking is 4-character
IEC62 code; e.g. “R002” for 2m , “R010” for 10m . For values including fractions of a milliohm the marking is 3 or
4-character code using “M” to indicate the decimal point, e.g. “M75” for 0.75m , “1M50” for 1.5m .
Ni Plating
Black
Green Coat & Uncoated
Sn Plated Finish
Termination Details:
Material
Matt tin plated finish over a barrier layer
Solderability
95% min coverage (MIL-STD 202F / 208H, 235ºC 2 secs)
ref.
3
4
6
7
8
14
15
16
18
21
22
AEC-Q200
Table 7
Test
High Temp. Exposure *
Temperature Cycling
Moisture Resistance
Biased Humidity
Operational Life (Cyclic Load) *
Vibration
Resistance to Soldering Heat *
Thermal Shock *
Solderability
Board Flex
Terminal Strength
Short Term Overload *
Method
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
AEC-Q200-005
AEC-Q200-006
5 x Pr for 5s
Max.
Black &
uncoated
(add R0005)
Green
1
1
0.5
0.5
1
1
1
1
1
1
0.5
0.5
0.5
1
0.5
1
>95% coverage
0.5
0.5
0.25
0.25
0.5
1
Notes: 1. Full AEC-Q200 qualification applies to 2512 size. The 1206 and 2010 sizes have received the tests marked *.
P
Power de-rating graph
100%
50 %
0%
-55
0
80
T°C
170
General Note
Telephone: +44 (0)1670 822181 · Facsimile: +44 (0)1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
08.10
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
02. 12
Metal Strip Current Sense
Metal Strip Current Sense Resistors Surface Mount
Resistors Surface Mount
ULR Series
ULR Series
Welwyn Components
Recommended Solder Pad Layouts
2-wire pad layout.
Mounting Type
2512
2010
1206
4-wire pad layout.
Mounting Type
2512
2010
1206
.
A
4.75
3.8
2.375
B
1.8
1.44
0.9
C
3.6
3.12
1.95
B
A
C
B
A
4.75
3.8
2.375
B
1.8
1.44
0.9
C
1.45
1.16
0.725
D
1.0
0.8
0.5
D
A
C
Physical Data
Dimensions (mm) and weight (g)
Size
Coat
Values
0.5
0.75
1 – 1.5
2–3
4
5–6
7
8 – 15
0.5
0.75
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
7
1 - 5.5
6-9
10
1 - 10
(m )
±0.25
L
W
±0.20
T
D
2.68
±0.25
2.48
±0.25
1.43
±0.25
1.18
±0.25
2.18
±0.25
1.93
±0.25
1.43
±0.25
1.18
±0.25
(nom)
Wt.
0.09
D
0.08
W
Green
3.18
±0.35
0.60
2512
6.35
Black
3.18
±0.25
1.40
1.00
0.80
0.65
0.50
1.00
0.70
0.71
0.60
0.58
0.50
0.47
0.50
0.45
0.60
L
T
1.43
±0.38
0.06
2010
1206
None
None
5.08
3.20
2.54
±0.15
1.6
±0.10
1.67
±0.25
1.10
±0.25
1.29
±0.25
0.98
±0.38
0.04
0.02
Flammability
The resistor will not burn or emit incandescent particles under any condition of applied temperature or overload.
Solvent resistance
The body protection and marking are resistant to all normal industrial solvents suitable for printed circuits.
Packaging
ULR parts are packed on a 2000 piece reel. Tape width is 8mm for 1206 and 12mm for 2010 and 2512.
General Note
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
TT electronics reserves the right to make changes in product specification without notice or liability.
Telephone: +44 (0)1670 822181 · Facsimile: +44 (0)1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
08.10
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
02. 12
Metal Strip Current Sense Resistors Surface Mount
Metal Strip Current Sense
Resistors Surface Mount
ULR Series
ULR Series
Welwyn Components
Ordering Procedure
Example: ULR2 at 2.5 milliohms and 1% tolerance on reel of 2000 pieces:
ULR2–R0025FT2
Type
Value (use IEC62 code)
F
J
Tolerance (use IEC62 code)
1%
5%
Packing
T2
Tape
2512
2010
1206
2000 / reel
Standard
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0)1670 822181 · Facsimile: +44 (0)1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
08.10
© TT electronics plc
02. 12
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