Datasheet

Ultra Precision
Metal Film Resistors
CAR series
Tolerance down to 0.01%
Low TCR’s
High reliability
Superior moisture performance
Non standard values available
Higheststabilitymetallmavailable
Matched sets and networks
Ultra Precision
Metal Film Resistors
CAR series
Tolerance down to 0.01%
Low TCR’s
High reliability
Superior moisture performance
Non standard values available
Highest stability metal film available
Matched sets and networks
Tolerance
TCR CAR5 CAR6 CAR7
ppm/°C 0.01-0.02% 0.05% 0.1-1% 0.01/0.02% 0.05% 0.1-1% 0.01-0.02% 0.05% 0.1-1%
5 50 to 300k 10 to 500k 10 to 500k 50 to 500k 10 to 500k 10 to 500k 50 to 750k 10 to 750k 10 to 750k
10 50 to 300k 10 to 1M 10 to 1M 50 to 500k 10 to 1M 10 to 1M 50 to 750k 10 to 1M 10 to 1.5M
15 50 to 300k 10 to 1M 10 to 1M 50 to 500k 10 to 1M 10 to 1M 50 to 750k 10 to 1M 10 to 3.5M
25 50 to 300k 10 to 1M 10 to 1.5M 50 to 500k 10 to 1M 10 to 3M 50 to 750k 10 to 1M 10 to 5M
50 50 to 300k 10 to 1M 10 to 3M 50 to 500k 10 to 1M 10 to 5M 50 to 750k 10 to 1M 10 to 10M
Dimensions (mm) and Weight (g)
PCB Min
mounting Bend Wt.
Type L Max D Max f min d nom. centres Radius nom.
CAR5 7.2 2.5 30 0.6 10.2 0.6 0.24
CAR6 10.0 3.7 30 0.6 12.7 0.6 0.40
CAR7 15.5 5.5 30 0.8 18.4 1.2 1.15
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: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
CAR5 CAR6 CAR7 Notes
Power rating at 70°C watts 0.25 0.33 0.5
Power rating at 85°C watts 0.125 0.25 0.33
Resistance range ohms 10R0 to 3M 10R0 to 5M 10R0 to 10M
Limiting element voltage volts 250 350 500
TCR (20 to +70°C) ppm/°C 5(V), 10(T), 15(Y), 25(D), 50(C) See tolerance/TCR
Resistance tolerance %
0.01(L), 0.02(P), 0.05(W), 0.1(B), 0.25(C), 0.5(D) & 1(F)
combinations
Standard values E24, E96 preferred below
Thermal impedance °C/watt 110 70 60
Ambient temperature range
Note1: Based on sampling. 100% screened product is available.
°C -55 to +155
Electrical Data
Table of Resistance Restrictions
Physical Data
A subsidiary of
TT electronics plc
Welwyn Components
178
L
D
f
d
1
Ultra Precision
Metal Film Resistors
CAR series
Tolerance down to 0.01%
Low TCR’s
High reliability
Superior moisture performance
Non standard values available
Highest stability metal film available
Matched sets and networks
Tolerance
TCR CAR5 CAR6 CAR7
ppm/°C 0.01-0.02% 0.05% 0.1-1% 0.01/0.02% 0.05% 0.1-1% 0.01-0.02% 0.05% 0.1-1%
5 50 to 300k 10 to 500k 10 to 500k 50 to 500k 10 to 500k 10 to 500k 50 to 750k 10 to 750k 10 to 750k
10 50 to 300k 10 to 1M 10 to 1M 50 to 500k 10 to 1M 10 to 1M 50 to 750k 10 to 1M 10 to 1.5M
15 50 to 300k 10 to 1M 10 to 1M 50 to 500k 10 to 1M 10 to 1M 50 to 750k 10 to 1M 10 to 3.5M
25 50 to 300k 10 to 1M 10 to 1.5M 50 to 500k 10 to 1M 10 to 3M 50 to 750k 10 to 1M 10 to 5M
50 50 to 300k 10 to 1M 10 to 3M 50 to 500k 10 to 1M 10 to 5M 50 to 750k 10 to 1M 10 to 10M
Dimensions (mm) and Weight (g)
PCB Min
mounting Bend Wt.
Type L Max D Max f min d nom. centres Radius nom.
CAR5 7.2 2.5 30 0.6 10.2 0.6 0.24
CAR6 10.0 3.7 30 0.6 12.7 0.6 0.40
CAR7 15.5 5.5 30 0.8 18.4 1.2 1.15
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: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
CAR5 CAR6 CAR7 Notes
Power rating at 70°C watts 0.25 0.33 0.5
Power rating at 85°C watts 0.125 0.25 0.33
Resistance range ohms 10R0 to 3M 10R0 to 5M 10R0 to 10M
Limiting element voltage volts 250 350 500
TCR (20 to +70°C) ppm/°C 5(V), 10(T), 15(Y), 25(D), 50(C) See tolerance/TCR
Resistance tolerance %
0.01(L), 0.02(P), 0.05(W), 0.1(B), 0.25(C), 0.5(D) & 1(F)
combinations
Standard values E24, E96 preferred below
Thermal impedance °C/watt 110 70 60
Ambient temperature range
Note1: Based on sampling. 100% screened product is available.
°C -55 to +155
Electrical Data
Table of Resistance Restrictions
Physical Data
A subsidiary of
TT electronics plc
Welwyn Components
178
L
D
f
d
1
Resistors
AllPb-freepartscomplywithEUDirecve2011/65/EU(RoHS2)
11.17
General Note
TT Electronics reserves the right to make changes in product specication without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn

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