4500 Datasheet, PDF (1/2 Pages) Welwyn Components Limited – HIGH VOLTAGE PLANAR RESISTORS

High Voltage
Planar Resistors
4500 Series
• Voltages up to 20kV dc.
• ^{Powers up to 4.5 Watts}
• ^{TCR to 50ppm/°C}
• ^{Customs design service available}
• ^{Planar construction gives low inductance and}
capacitance
Welwyn Components
Electrical Data
Power rating at 70°C
Resistance range
Limiting element voltage
TCR (20°C to 70°C)
Resistance tolerance
Values
Ambient temperature range
Value ranges for TCR of 100 ppm/°C
Value ranges for TCR of 150 ppm/°C
Value ranges available for
TCR of 50ppm/°C
watts
ohms
volts
ppm/°C
%
°C
4501
1
20k to 500M
10k
≤150M
>150M
4502
1.7
36k to 750M
10k
≤270M
>270M
4503
4504
4505
4506
2
3
2.8
3.6
36k to 750M 62k to 1G 51k to 1G 82k to 1G
15k
15k
20k
20k
100, 150 (see table below for 50ppm)
1, 2, 5
Any value to order
-55 to 125
≤270M ≤470M ≤390M ≤680M
>270M >470M >390M >680M
4507
4.5
180k to 1.5G
20k
≤1.5G
<100M <150M <200M <250M <250M <300M <600M
Physical Data
Dimensions (mm) of Uncoated Resistors*
Type
4501
4502
4503
4504
4505
4506
4507
L max
25.7
25.7
38.7
38.7
51.2
51.2
51.2
H max
9
13
9
13
9
13
25.7
W max
2
2
2
2
2
2
2
P (nominal)
450000 450000A
20.3
22.9
20.3
22.9
33.0
35.6
33.0
35.6
45.7
48.3
45.7
48.3
45.7
48.3
*Conformally quoted resistors: Add 1mm to dimensions L and H and 0.5mm to W.
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 B · 03.02
205