ULR1 Datasheet, PDF (1/3 Pages) Welwyn Components Limited – Metal Strip Current Sense Resistors Surface Mount

Metal Strip Current Sense
Resistors Surface Mount
ULR Series
• 1 watt to 3 watts, all 2512 size
• Resistance R0005 (0.5mΩ) to R01 (10mΩ)
• Low TCR, Low inductance
• Designed for current sensing in
power electronic systems
• RoHS compliant
Welwyn Components
Electrical Data
ULR1
Power rating at 80°C
watts
1.0
Resistance range ¹
ohms R0005 to R007
Isolation voltage
volts
200V
50, 75, 100, 150
TCR
ppm/°C _{See table below}
Resistance Tolerance
%
Protective coating ²
Black
Standard Values
Ambient temperature range
°C
Note 1: For values above 0R01 refer to our LR / LRF Series
Note 2: Colour of coating relates to solder process suitability, see Construction
ULR2
2.0
R0005 to R01
200V
ULR25
2.5
R0035 to R006
200V
50
50
1(F), 5(J)
Green/ Black
Green
See table below for available values
-55 to +170
ULR3
3.0
R0005 to R003
200V
50, 75, 100
See table below
Green
Standard Values Available (non-standard values may be available to order - consult factory)
Value
R0005
R00075
R001
R0015
R002
R0025
R003
R0035
R004
R0045
R005
R0055
R006
R007
R008
R009
R01
ULR1
Colour
TCR
Black
50
Black
50
Black
50
Black
50
Black
50
Black
150
Black
150
Black
150
Black
100
Black
100
Black
100
Black
100
Black
75
Black
75
ULR2
Colour
TCR
Black
50
Black
50
Black
50
Black
50
Black
50
Green
50
Green
50
Green
50
Green
50
ULR25
Colour
TCR
Green
50
Green
50
Green
50
Green
50
Green
50
Green
50
ULR3
Colour
TCR
Green
100
Green
100
Green
50
Green
50
Green
50
Green
75
Green
75
General Note
Welwyn Components 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.
© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
A subsidiary of
TT electronics plc
Issue A · 09.06