GBR-200 Series High-Voltage Thick Film Resistors
Thick film resistive element on alumina ceramic substrate (Al₂O₃ — 96%)
Rated power 1W
Nominal resistance 47kΩ; resistance range 0.1Ω to 500kΩ
Resistance tolerance ±10%
Maximum operating voltage (pulsed) 25kV
Maximum voltage for 3-second pulse 33kV
TCR ±100 ppm/°C
Operating temperature −20°C to +70°C
Designed for high-voltage applications requiring high stability and resistance
What are theGBR-200 Series High-Voltage Thick Film Resistors?
The GBR-200 is a specialist high-voltage thick film resistor built on a 96% alumina ceramic substrate (Al₂O₃), engineered specifically for applications that impose extreme voltage stress on resistive components. Unlike general-purpose thick film resistors, the GBR-200 is rated for pulsed operating voltages up to 25kV continuously and up to 33kV for short-duration three-second pulses, making it one of the most capable components in the GBR series for pulse-power and high-energy discharge environments. The ceramic substrate provides the dielectric strength and dimensional stability essential for safe and reliable operation at these voltage levels.
The nominal resistance value is 47kΩ, with the available resistance range extending from 0.1Ω to 500kΩ. A standard tolerance of ±10% is offered, and alternative resistance values beyond the standard range are available on request. The temperature coefficient of resistance is ±100 ppm/°C, and continuous power dissipation is rated at 1W. The specified operating temperature range of −20°C to +70°C reflects the demanding thermal environments typical of high-voltage equipment enclosures and pulsed power systems.
As a thick film component, the GBR-200 exhibits the inherent advantages of that technology: higher stability and lower noise compared to conventional carbon resistors, combined with the mechanical robustness of a ceramic substrate that can withstand the electrostatic and thermal stresses associated with repetitive high-voltage pulses. These characteristics make the GBR-200 suitable not only for continuous high-voltage operation but also for transient-heavy circuits where lesser components would degrade rapidly under repeated voltage excursions.
GBR-200 Series High-Voltage Thick Film Resistors Specifications
A practical overview for engineers and procurement teams evaluating resistive solutions.
Model: GBR-200
Resistor type: High Voltage
Description: Thick film
Power Rating: 1W
Resistance (Ω): 0.1~500k
Tolerance (%): ±10
TCR (ppm/C): 100
Applications of the GBR-200 Series High-Voltage Thick Film Resistors
Where RARA high voltage resistors are deployed in the field.
Pulsed power systems — energy storage discharge networks and pulse-forming line resistors operating up to 25kV
High-voltage laboratory and test equipment — voltage divider and probe resistors for kilovolt-range measurements
Medical imaging and radiotherapy equipment — X-ray generator and linear accelerator bias and protection resistors
Particle accelerator and physics research systems — high-voltage resistor chains and beam deflection networks
Electrostatic precipitation and air treatment equipment — corona discharge and ioniser supply resistors
High-voltage power supply units — bleeder, equalisation, and voltage divider resistors in multi-kilovolt designs
Impulse and surge testing apparatus — waveshaping and damping resistors in lightning impulse and switching surge generators
Laser power supply systems — high-voltage current limiting and discharge resistors for pulsed laser excitation
Telecommunications and radar transmitter systems — high-voltage protection and bias resistors in transmit amplifier stages
Industrial dielectric heating and plasma generation equipment — high-voltage resistive elements in RF and microwave power circuits
Related Products of the GBR-200 Series High-Voltage Thick Film Resistors
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
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.
