High Voltage Precision
High Voltage Precision
Thick Film Resistors
Thick Film Resistors
Welwyn Components
T Series
T Series
Working voltage up to 100kV
Working voltage up to 100kV
Resistances up to 50G
Resistancesto 25ppm
TCR down up to 50G
TCR down tovariants
Termination 25ppm
Termination variants matched characteristics
Sets of resistors with
·
·
·
·
·
Sets of resistors with matched characteristics
Electrical Data
T43
T44
T48
Notes
Power rating at 20°C
watts
1.5
3.5
10
Resistance range
ohms
10K to 10G
10K to 50G
33K to 50G
volts
4K
14K
50K
8K
28K
100K
Limiting element voltage
TCR
ppm/°C
Resistance tolerance
In air
In oil
100 *
1, 2, 5
%
Values
Values > 1G: TCR is 250ppm/°C
Closer tolerances over restricted range
E24 preferred values
Thermal impedance
°C/watt
Ambient temperature range
31
°C
27
Any value to special order
13
-55 to 150
* Contact factory for 25 or 50ppm/°C
Physical Data
Dimensions (mm) & Weight (g)
PCB
Min
Bend
Radius
Wt. nom
3.1
Type
L max
D max
f min
d nom
mounting
centres
T43D
25.4
8.4
32.0
0.8
31.8
1.2
T44D
50.8
8.4
32.0
0.8
57.2
1.2
5.6
T48D
150.0
8.4
32.0
0.8
156.4
1.2
18.5
T43KU
30.2
8.5
32.0
0.8
3.9
T44KU
53.2
8.5
32.0
0.8
7.4
T48KU
152.2
8.5
32.0
0.8
19.3
T43TU
32.6
8.5
T44D
d
D
T44TU
L
L
f
T44KU
L
5.8
T44TU
55.6
8.5
8.2
T48TU
154.8
8.5
20.2
General Note
General Note
TT electronics reserves reserves the make to make changes in specification without notice or notice or liability.
Welwyn Components the right to right changes in product product specification without liability.
All information is subject to TT electronics’ own data and is considered accurate at timegoing to print.
information is subject to Welwyn’s own data and is considered accurate at time of of going to print.
A subsidiary of
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
TT electronics plc
© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
© TT electronics plc822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Telephone: +44 (0) 1670
07.11
09. 11
