GBR-395 Series High-Voltage Thick Film Resistors
Thick film resistive element on alumina ceramic substrate (Al₂O₃ — 96%)
Rated power 1W
Resistance range 0.1Ω to 500MΩ; tolerance ±10%
Maximum continuous operating voltage 22kV
Maximum voltage for 3-second pulse 40kV
TCR ±100 ppm/°C
Operating temperature −20°C to +70°C
Designed for high-voltage applications requiring high stability and resistance
Alternative resistance values available on request
What are the GBR-395 Series High-Voltage Thick Film Resistors?
The GBR-395 is a 1W high-voltage thick film resistor constructed on a 96% alumina ceramic substrate (Al₂O₃), positioned within the GBR series as a single-element component combining a broad megohm resistance range with a continuous operating voltage of 22kV and a three-second pulse voltage limit of 40kV. These voltage ratings place the GBR-395 between the GBR-250 and GBR-253 in terms of transient capability, making it well suited to high-voltage circuits that must withstand moderate pulse overvoltage events alongside sustained operation at multi-kilovolt levels, without requiring the higher pulse ratings of the more specialised series members.
The resistance range extends from 0.1Ω to 500MΩ, with typical standard values from 10MΩ to 500MΩ available at a uniform tolerance of ±10%. Alternative resistance values outside the standard range are available on request. The temperature coefficient of resistance is ±100 ppm/°C, and the operating temperature range of −20°C to +70°C reflects the industrial and laboratory environments in which components of this type are routinely deployed. Rated continuous power dissipation is 1W, consistent with the compact physical format of the series and the high-impedance circuit configurations in which megohm-range resistors typically operate.
As a thick film resistor on an alumina ceramic substrate, the GBR-395 inherits the superior long-term stability and low-noise performance that distinguish thick film technology from conventional carbon resistors, as well as the dielectric robustness of the ceramic substrate under sustained and transient high-voltage stress. The combination of a 500MΩ upper resistance limit, a 22kV continuous voltage rating, and a 40kV pulse tolerance in a single compact component gives the GBR-395 a broad application scope across industrial high-voltage equipment, scientific instrumentation, and specialised power electronics where reliable high-impedance operation under elevated voltage conditions is a primary design requirement.
GBR-395 Series High-Voltage Thick Film Resistors Specifications
A practical overview for engineers and procurement teams evaluating resistive solutions.
Model: GBR-395
Resistor type: High Voltage
Description: Thick film
Power Rating: 1W
Resistance (Ω): 0.1~500M
Tolerance (%): ±10
TCR (ppm/C): 100
Applications of the GBR-395 Series High-Voltage Thick Film Resistors
Where RARA high voltage resistors are deployed in the field.
High-voltage power supply circuits — voltage divider, bleeder, and equalisation resistors operating continuously up to 22kV in industrial and laboratory DC supplies
Medical imaging and X-ray generator equipment — high-impedance bias, protection, and discharge resistors in radiographic and computed tomography power systems
Industrial instrumentation and process control — precision high-voltage sensing and signal attenuation networks requiring stable megohm-range resistance at multi-kilovolt levels
Electrostatic coating and surface treatment systems — high-voltage supply resistors for electrostatic applicator heads and charge control networks operating up to 22kV
Test and measurement apparatus — high-impedance probe networks, voltage dividers, and precision load resistors for kilovolt-range measurement and calibration equipment
Photomultiplier tube and radiation detector bias circuits — high-voltage resistor chains providing stable megohm-range bias for particle and photon detection systems
Particle accelerator and physics research power supplies — high-impedance resistors in beam optics, deflection, and focusing supply circuits subject to transient overvoltage stress up to 40kV
High-voltage cable and insulation testing equipment — series protection and current-limiting resistors in partial discharge and dielectric withstand test systems
Laser power supply units — high-voltage current-limiting and discharge resistors for pulsed and continuous-wave laser excitation circuits requiring both 22kV continuous and 40kV pulse capability
Telecommunications and broadcast transmitter systems — high-impedance bias and protection resistors in high-voltage amplifier and modulator stages subject to transient overvoltage events
Related Products of the GBR-395 Series High-Voltage Thick Film Resistors
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
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.
