High Voltage Precision
Thick Film Resistors
T Series
Welwyn Components
•
Working voltage up to 100kV
•
Resistances up to 50G
•
TCR down to 25ppm
•
Termination variants
•
Sets of resistors with matched characteristics
Electrical Data
T43
Power rating at 20°C
Resistance range
Limiting element voltage
TCR
Resistance tolerance
Values
Thermal impedance
Ambient temperature range
°C/watt
°C
31
watts
ohms
volts
ppm/°C
%
1.5
1K to 10G
4K
8K
T44
3.5
1K to 50G
14K
28K
25, 50, 100
1, 2, 5
E24 preferred values
27
-55 to 150
13
T48
10
1K to 50G
50K
100K
In air
In oil
Values > 1G: TCR is 250ppm/°C
Closer tolerances over restricted range
Any value to special order
Notes
Physical Data
Dimensions (mm) & Weight (g)
PCB
mounting
Type
T43D
T44D
T48D
T43KU
T44KU
T48KU
T43TU
T44TU
T48TU
L max
25.4
50.8
150.0
30.2
53.2
152.2
32.6
55.6
154.8
D max
8.4
8.4
8.4
8.5
8.5
8.5
8.5
8.5
8.5
f min
32.0
32.0
32.0
32.0
32.0
32.0
d nom
0.8
0.8
0.8
0.8
0.8
0.8
centres
31.8
57.2
156.4
Min
Bend
Radius
1.2
1.2
1.2
Wt. nom
3.1
5.6
18.5
3.9
7.4
19.3
5.8
8.2
20.2
T44TU
L
T44KU
L
T44D
d
D
L
f
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.
A subsidiary of
TT electronics plc
Issue B · 03.02
© 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
193
WELWYN [ WELWYN COMPONENTS LIMITED ]
