Precision High Voltage
Planar Resistors
PHVP Series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
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.
© TT electronics plc
09. 11
· Voltage ratings 5 to 40kV
· Non-inductive, non-magnetic design
· Tolerance down to 0.1%
· TCR down to 15ppm/°C
· VCR down to -0.05ppm/V
· Custom design service available
· SMD versions available on request
· Gold bondable pads available
· RoHS compliant
Precision High Voltage Planar Resistors
PHVP Series
Voltage ratings 5 to 40kV
Non-inductive, non-magnetic design
Tolerance down to 0.1%
TCR down to 15ppm/°C
VCR down to -0.05ppm/V
Custom design service available
SMD versions available on request
Gold bondable pads available
RoHS compliant
Electrical Data
PHVP 5 7 7B 10 10B 10C 15 15B 15C 20 20B 20C 30 40
Power rating at 25Cwatts 1 0.8 1 1 1.3 2 1.5 2 3 2 3 4.5 6.5 9
Limiting element voltage in air kV 5 7 7 10 10 10 15 15 15 20 20 20 30 40
Limiting element voltage in oil* kV 10 14 14 20 20 20 30 30 30 40 40 40 60 80
Resistance value min ohms 1K
Resistance value max ohms 3G 1G 2G5 1G5 3G5 7G 4G 5G 10G 7G 10G 20G 30G 40G
Resistance tolerance % ≤10G: 0.1%, 0.25%, 0.5%, 1% >10G: 0.25%, 0.5%, 1%
≤10G: 15, 25, 50 >10G: 25, 50
TCR (25°C to 75°C) ppm/C
Standard values E24 preferred
Ambient temperature range C-55 to +200
Insulation resistance at 500V ohms >10G
Dielectric strength of insulation volts >1000
Physical Data
Dimensions in mm, weight in g
Type L (±0.5) B (±0.5) E (Max) D (±0.5) C (Max) Wt. nom
PHVP5 12.7 5.08 2 10.16 10 0.22
PHVP7 20.32 3.81 2 17.78 10 0.55
PHVP7B 20.32 5.08 2.5 17.78 35 0.64
PHVP10 25.4 3.81 2 22.86 10 0.59
PHVP10B25.4 5.08 2.5 22.86 35 0.68
PHVP10C 25.4 7.62 2.5 22.86 35 0.95
PHVP15 38.1 3.81 2 35.56 10 0.71
PHVP15B38.1 5.08 2.5 35.56 35 0.85
PHVP15C 38.1 12.7 2.5 35.56 35 1.83
PHVP20 50.8 5.08 2 48.26 10 0.96
PHVP20B50.8 6.35 2.5 48.26 35 1.12
PHVP20C 50.8 15.24 2.5 48.26 35 2.58
PHVP30 76.2 15.24 3 73.66 35 4.83
PHVP40 101.6 15.24 3 99.06 35 6.37
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 test data and is considered accurate at time of print.
©Welwyn C omponents L imited
Welwyn Electronics Park, Bedlington, Northumberland, NE22 7AA, England. Tel: 01670 822181 Fax: 01670 829465 Web: www.welwyn-tt.com
07.11
Construction
Termination conductors and ruthenium oxide resistive
material are printed in a non-inductive pattern onto the
surface of a 96% alumina substrate. A screen-printed
protection is thenapplied and terminal wires are then
attached.
Terminations
The termination wires are tin coated copper.
M
arking
Type reference, resistance value and tolerance are
legend marked. The resistance value code conforms to
IEC 62.
Solvent Resistance
The body protection and marking are resistant to all
normal industrial cleaning solvents suitable for printed
circuits.
Welwyn Components
Precision High Voltage
Planar Resistors
PHVP Series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
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.
© TT electronics plc
09. 11
Precision High Voltage Planar Resistors
PHVP Series
Performance Data
Maximum Typical
Load at rated power: 1000 hours at 25CR% 0.25 0.1
Overload: 1.5 x rated power not exceeding LEV for 5 secondsR% 0.25 0.1
Moisture resistance: MIL Std. 202, method 106 R% 0.25 0.1
Thermal shock: MIL Std. 202, method 107, condition C R% 0.2 0.1
Type Typical VCR (ppm/V)
PHVP5 <250M: -0.2 250M to 3G: -3.7
PHVP7 <100M: -0.8 100M to 1G0: -1.5
PHVP7B <200M: -0.9 200M to 2.5G: -2.5
PHVP10 <150M: -0.65 150M to 1.5G: -1.2
PHVP10B<250M: -0.7 250M to 3.5G: -1.8
PHVP10C <500M: -0.35 500M to 7G: -0.9
PHVP15 <300M: -0.5 300M to 4G: -0.9
PHVP15B<400M: -0.45 400M to 5G: -1.2
PHVP15C <1G0: -0.2 1G0 to 10G: -0.4
PHVP20 <500M: -0.35 500M to 7G: -0.8
PHVP20B<600M: -0.35 600M to 10G: -0.7
PHVP20C <1G0: -0.1 1G0 to 20G: -0.3
PHVP30 <1.5G: -0.07 1.5G to 30G: -0.2
PHVP40 <2G: -0.05 2G to 40G: -0.15
Application Notes
Due to the high voltage, which can appear between the terminations and any adjacent metal part, resistors should be
mounted at an adequate distance from other conductors.
For some ultra-high voltage applications it is required to immerse the components in oil or SF6gas or pot them in void-
free silicone compound to reduce corona or surface tracking. The printed protection is suitable for these applications.
The axial termination should not be bent closer than twice the diameter of the terminal wire from the resistor body.
Ordering Procedure
Example: PHVP10 with radial leads at 100 megohms, 0.5% tolerance & ±50ppm/°C TCR:
P H V P 1 0 R C –1 0 0 M D I
Type
Size
Terminals
R Radial
A Axial
TCR
Y15ppm/°C D25ppm/°C
C50ppm/°C
Value (use IEC62 code)
Tolerance (use IEC62 code)
C 0.25% F 1%
B 0.1% D 0.5%
Packing
IBulk Pack Standard
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability. 07.11
All information is subject to Welwyn’s own test data and is considered accurate at time of print.
Welwyn C omponents L imited
Welwyn Electronics Park, Bedlington, Northumberland, NE22 7AA, England. Tel: 01670 822181 Fax: 01670 829465 Web: www.welwyn-tt.com
Derating Curve
0
20
40
60
80
100
120
0 25 50 75 100 125 150 175 200 225
Ambient Temperature (°C)
Proportion of Pr (%)
