High Voltage
Planar Resistors
HVP Series
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Excellent reliability
Ideally suited for medical applications
Voltages up to 20kV
Resistance values up to 1G
Small footprint
RoHS compliant
Planar construction gives low inductance
and capacitance
Electrical Data
HVP04
Power rating at 70°C
Resistance range
Limiting element voltage (dc or ac peak)
TCR (20°C to 70°C)
Resistance tolerance
Values
Ambient temperature range
°C
watts
ohms
kV
ppm/°C
%
0.4
1K0 to 250M
2
HVP06
0.6
1K5 to 500M
5
HVP08
0.8
2K0 to 500M
7.5
100
1, 5
E24 preferred
-55 to 155
HVP10
1
3K0 to 500M
10
HVP15
1.5
4K0 to 750M
15
HVP20
2
5K0 to 1G0
20
Other resistance, tolerance and TCR values are available on request.
Physical Data
Dimensions (mm)
Type
HVP04
HVP06
HVP08
HVP10
HVP15
HVP20
L ±0.75
10.16
12.7
19.05
25.4
38.1
50.8
H ±0.5
6.35
6.35
6.35
6.35
6.35
6.35
W ±0.5
2
2
2
2
2
2
P ±0.5
7.62
10.16
15.24
22.86
35.56
48.26
0.5
9 min
P
L
H
W
0.25
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
09. 11
High Voltage
Planar Resistors
HVP Series
Construction
Conductor pads are printed to the rear and front faces of a 96% alumina substrate. A specially selected high voltage thick film resistor ink, based
on a ruthenium oxide/glass system, is printed between the front face conductors and then covered in an overglaze before being protected with a
special screen printed material which gives excellent high voltage and climatic performance.
Marking
Type, resistance value and tolerance are legend marked in black ink on the rear of the component. The resistance value conforms to IEC 62.
Solvent Resistance
The component protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuit boards
Terminations
Solder coated phosphor bronze leadframe terminations are solder dipped in SnAgCu and meet the following IEC requirements:
IEC 68.2.21 – Strength
IEC 115-1, Clause 4.17.3.2 – Solderability
Packaging
Packed in foam within a box. See Ordering Procedure for box quantities.
Performance Data
Maximum
Load at rated power: 1000 hours at 70°C
Dry heat: 1000 hours at 155°C
Shelf life: 12 months at room temperature
Derating from power at 70°C
Climatic
Climatic category -
Long term damp heat
Temperature rapid change
Resistance to solder heat
Voltage coefficient of resistance ppm/V
ΔR%
ΔR%
ΔR%
HVP04, HVP06, HVP08
HVP10, HVP15, HVP20
1
0.25
0.25
-2.5
-1.5
ΔR%
1
-55/155/56
0.3
0.02
0.02
-1
-0.5
ΔR%
ΔR%
ΔR%
1
1
0.3
Zero at 155°C
0.3
Typical
0.25
0.25
<0.1
Application Notes
Due to the high voltage which can appear between the resistor body and any adjacent metal part, resistors should be mounted at an adequate
distance from other conducting parts.
Due to the possibility of surface condensation it is recommended that high voltages are not applied to resistors in areas of high humidity without
the application of suitable moisture resistant lacquer
Design Flexibility
The experience of Welwyn engineers has been used to design this generation of high voltage planar resistors to be suitable for a majority of
applications. However, should an application require particular consideration, Welwyn designers are able to provide advice and where applicable, to
recommend a non-standard product. Special sizes, designs etc, can be prototyped at short notice.
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
09. 11
High Voltage
Planar Resistors
HVP Series
Ordering Procedure
Example: HVP06 at 15 megohms and 1% tolerance and packed in a box with a standard quantity of 160 pieces:
HVP06
–
15M F B016
Type
Value (use IEC62 code)
Tolerance (use IEC62 code)
F
J
1%
5%
Packing
B02
B016
B012
B008
B006
B004
Bulk
Pack
HVP04
HVP06
HVP08
HVP10
HVP15
HVP20
200 / box
160 / box
120 / box
80 / box
60 / box
40 / box
Standard
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
09. 11
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