Thick film, metal glazed, and tubular resistors engineered for voltages from 1kV to 90kV — available in SMD chip, axial, radial, tubular, and planar configurations for medical, industrial, and high-voltage power supply applications.
10Ω – 1TΩ
Resistance Range
5 ppm/°C
Best TCR Available
Certifications:
Up to 90kV
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ISO9001
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IATF16949
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Fusible Models
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TÜV
What Is a High Voltage Resistor?
A practical overview for engineers and procurement teams evaluating resistive solutions.
A
high voltage
resistor is specifically engineered to operate safely and stably at supply voltages of
1000V or higher
— conditions that would cause arcing, flashover, or catastrophic failure in standard resistors. The design challenge at high voltages is not just power handling, but managing
electric field distribution, preventing corona discharge, and maintaining stable resistance values over a wide voltage range.
RARA's high voltage range is manufactured in five configurations — SMD chip, axial, radial, tubular, and planar
— to suit circuit board mounting, through-hole designs, and chassis-level installations. Technologies include thick film, metal glazed, and precision non-inductive designs, covering supply voltages from 3kV up to
90kV
with resistance values reaching
1 TΩ (1 teraohm).
At the precision end, the 400
Series achieves tolerances as tight as
±0.05%
and TCR as low as
5 ppm/°C
— among the best available for any high voltage resistor. The
HVI
series also offers ±1% tolerance and 25 ppm/°C TCR for demanding applications. The
GBR bleeder and divider series
provides application-specific solutions for voltage division, discharge, and measurement circuits.
Configurations Available
SMD thick film chip (HVTK, SMG)
Axial / radial metal glazed (MGR)
Thick film tubular (HVE, HVI, HVR)
Precision planar (400 Series, HVP)
Bleeder & divider (GBR series)
Key Advantages
Rated to 90kV supply voltage
Resistance up to 1 TΩ
Tolerance as tight as ±0.05%
TCR as low as 5 ppm/°C
Non-inductive models available
RARA high voltage resistors are manufactured in SMD, axial, radial, tubular, and planar configurations — giving engineers the right form factor for every high voltage design challenge from 1kV to 90kV.
Where RARA high voltage resistors are deployed in the field.
Medical Imaging & X-Ray
High voltage resistors are critical in X-ray generators, CT scanners, and electron microscopes — where supply voltages routinely exceed 50kV. The 400 Series precision non-inductive resistors and HVR tubular series are well-suited to medical HV power supply voltage divider and feedback circuits.
High Voltage Power Supplies
Bleeder resistors, voltage dividers, and feedback network components in HVDC power supplies, laser power supplies, and electrostatic equipment depend on stable, high-resistance components. RARA's GBR bleeder and divider series and HVP planar types are purpose-built for these roles.
Test & Measurement Equipment
High accuracy voltage measurement probes, oscilloscope HV probes, and precision voltage dividers require resistors with very low TCR and tight tolerance. The 400 Series (±0.05%, 5 ppm/°C) and HVI series (±1%, 25 ppm/°C) meet the stability demands of precision metrology instruments.
ESD & Surge Protection
HVTK thick film chip resistors are used in ESD protection circuits and high voltage signal conditioning on PCBs where compact footprint and high voltage standoff are required simultaneously — operating safely at voltages far beyond standard SMD resistor ratings.
Industrial High Voltage Systems
Electrostatic precipitators, plasma generators, ion beam systems, and high voltage test benches use tubular HVE and HVR series resistors for current limiting, voltage division, and discharge functions at supply voltages from 4.8kV up to 80kV.
Telecom & RF High Voltage
Transmitter power supplies, antenna tuning units, and radar systems operate at elevated voltages where standard resistors fail. Metal glazed MGR and SMG series provide stable high resistance values with good HF characteristics for RF and telecom high voltage applications.
Select models from our wire wound lineup. Download individual datasheets for full specifications, dimensions, and ordering codes.
Model: HVTK (HVR)
Resistor type: High Voltage
Description: Thick film chip
Power Rating: 1/16W~1W
Resistance (Ω): 10~100M
Tolerance (%): ±1, ±5
TCR (ppm/C): 100~4000
Model: SMG
Resistor type: High Voltage
Description: Metal glazed chip
Power Rating: 1W, 2W, 3W
Resistance (Ω): 47k~33M
Tolerance (%): ±1, ±5
TCR (ppm/C): 200
Model: MGR
Resistor type: High Voltage
Description: Metal glazed
Power Rating: 1/4W~3W
Resistance (Ω): 1k~1G
Tolerance (%): ±1, ±2, ±5
TCR (ppm/C): 100, 200
Model: HVE
Resistor type: High Voltage
Description: Thick film Tubular
Power Rating: 2.5W~20W
Supply voltage: 4.8kV~45kV
Resistance (Ω): 200~10G
Tolerance (%): ±1, ±5, ±10
TCR (ppm/C): 100
Model: HVI
Resistor type: High Voltage
Description: Thick film Tubular
Power Rating: 1W~6W
Supply voltage: 4kV~30kV
Resistance (Ω): 100k~1G
Tolerance (%): ±1
TCR (ppm/C): 25
Model: UHV
Resistor type: High Voltage
Description: High Voltage and Ohm
Power Rating: 0.5W~3W
Supply voltage: 3kV~14kV
Resistance (Ω): 1K~2G
Tolerance (%): ±1, ±2, ±5, ±10
TCR (ppm/C): 25~500
Model: 400 Series
Resistor type: High Voltage
Description: Precision, Non-Inductive
Low TCR
Power Rating: 3.8W~20W
Supply voltage: 15kV~90kV
Resistance (Ω): 1k~1T
Tolerance (%): ±0.05 to ±10
TCR (ppm/C): 5, 10, 15, 25, 50, 100
Model: HVR
Resistor type: High Voltage
Description: High Voltage Tubular
Power Rating: 8W~300W
Supply voltage: 25kV~80kV
Resistance (Ω): 10~1G
Tolerance (%): ±1, ±2, ±5, ±10
TCR (ppm/C): 50~1000
Model: HVP
Resistor type: High Voltage
Description: Thick film planar
Power Rating: 0.5W~4W
Resistance (Ω): 1M~1G
Tolerance (%): ±0.5~±20
TCR (ppm/C): 50~250
Model: GBR-181
Resistor type: High Voltage
Description: Thick film
Power Rating: 0.5W
Resistance (Ω): 0.1~20M
Tolerance (%): ±2, ±5
TCR (ppm/C): 50, 100
Model: GBR-182
Resistor type: High Voltage
Description: Thick film
Power Rating: 1W
Resistance (Ω): 0.1~20M
Tolerance (%): ±2, ±5
TCR (ppm/C): 50, 100
Model: GBR-183
Resistor type: High Voltage
Description: Thick film
Power Rating: 2W
Resistance (Ω): 0.1-20M
Tolerance (%): ±2, ±5
TCR (ppm/C): 50, 100
Model: GBR-200
Resistor type: High Voltage
Description: Thick film
Power Rating: 1W
Resistance (Ω): 0.1~500k
Tolerance (%): ±10
TCR (ppm/C): 100
Model: GBR-250
Resistor type: High Voltage
Description: Thick film
Power Rating: 2W
Resistance (Ω): 0.1~500M
Tolerance (%): ±10, ±20
TCR (ppm/C): 100
Model: GBR-253
Resistor type: High Voltage
Description: Thick film
Power Rating: 1.7W
Resistance (Ω): 0.1~500M
Tolerance (%): ±10, ±20
TCR (ppm/C): 100
Model: GBR-350
Resistor type: High Voltage
Description: Thick film
Power Rating: 2W
Resistance (Ω): 50~220M
Tolerance (%): ±3, ±5
TCR (ppm/C): 10
Model: GBR-351
Resistor type: High Voltage
Description: Thick film bleeder
Power Rating: 2W
Resistance (Ω): 45~256M
Tolerance (%): ±3, ±5
TCR (ppm/C): 100
Model: GBR-390
Resistor type: High Voltage
Description: Divider
Power Rating: 4W
Resistance (Ω): 1~40M
Tolerance (%): 0.1, ±5
TCR (ppm/C): 40
Model: GBR-391
Resistor type: High Voltage
Description: Thick film divider
Power Rating: 13W
Resistance (Ω): 1~40M
Tolerance (%): ±0.1~±5
TCR (ppm/C): 40
Model: GBR-395
Resistor type: High Voltage
Description: Thick film
Power Rating: 1W
Resistance (Ω): 0.1~500M
Tolerance (%): ±10
TCR (ppm/C): 100
Model: GBR-403
Resistor type: High Voltage
Description: Thick film
Power Rating: 2W
Resistance (Ω): 100M~2G
Tolerance (%): ±5, ±10, ±20
TCR (ppm/C): 100
Why Choose RARA High Voltage Resistors
What sets RARA apart for engineers and procurement managers in industrial and automotive markets.
01
Widest Voltage Range
From 1kV SMD chip types to 90kV precision planar resistors — RARA's high voltage lineup covers more of the voltage spectrum than virtually any single supplier.
02
Extreme Precision
The 400 Series delivers ±0.05% tolerance and 5 ppm/°C TCR — precision that rivals dedicated metrology components, available at high voltage ratings up to 90kV.
03
5 Form Factors
SMD, axial, radial, tubular, and planar configurations give design engineers the right package for board-level, through-hole, or chassis-mounted high voltage circuits.
04
Global Track Record
Trusted by Toshiba, Siemens, Rockwell, and Schneider Electric — deployed in medical, industrial, and telecom high voltage systems across six continents.
