GBR-605 Series Thick Film Heating Elements
Thick film resistive heating element on 96% alumina (Al₂O₃) ceramic substrate
Rated continuous power 5W to 60W when mounted on a heatsink
Pulse power capability 100W for 2 seconds
Exceptionally low inductance less than 3µH — suitable for high-frequency and fast-switching circuit environments
Wide supply voltage range 12V to 240V
Standard catalogue ratings at 230V AC: 15W, 30W, 45W, and 60W; other voltage and power combinations available on request
Power tolerance ±5%
Temperature coefficient of resistance (TCR) ±50 ppm/°C
Maximum element temperature 500°C
Solder field termination for direct electrical connection
What are the GBR-605 Series Thick Film Heating Elements?
The GBR-605 series are thick film heating elements fabricated on a 96% alumina (Al₂O₃) ceramic substrate, designed for high power density in a compact footprint while delivering two performance characteristics that set this series apart within the GBR family: an exceptionally low inductance of less than 3µH, and a maximum element temperature rating of 500°C. The resistive layer is deposited directly onto the ceramic surface using a thick film process, producing a flat, low-profile element that couples efficiently to a heatsink through its mounting face and supports continuous rated outputs from 5W to 60W, with a 2-second pulse rating of 100W.
The specified inductance of less than 3µH is a defining feature of the GBR-605 series and results directly from the planar geometry and non-inductive nature of the thick film resistive element. This makes the series particularly well suited to use as high-power resistors in high-frequency switching circuits, power electronics, and RF damping networks where even small parasitic inductance introduced by wirewound alternatives would cause impedance errors, voltage spikes, or oscillation. The same low-inductance characteristic that benefits resistive applications also ensures clean thermal response in precision heating duties where rapid power modulation is required.
The GBR-605 series accepts supply voltages from 12V to 240V, covering DC low-voltage systems and full mains-voltage AC without requiring separate product variants. Standard catalogue configurations at 230V AC provide rated outputs of 15W, 30W, 45W, and 60W, with other voltage and power combinations available on request for application-specific designs. All variants carry a power tolerance of ±5% and a temperature coefficient of resistance of ±50 ppm/°C, ensuring stable and predictable output across the operating range. The maximum permissible element temperature of 500°C is the highest in the GBR heater range, making the GBR-605 suitable for demanding high-temperature process and industrial heating applications where other elements would exceed their thermal limits. Electrical connection is via solder fields on the element surface.
GBR-605 Series Thick Film Heating Elements Specifications
A practical overview for engineers and procurement teams evaluating resistive solutions.
Model: GBR-605
Resistor type: Heater
Description: Thick film elements
Power Rating: 5W~60W (heatsink)
Supply Voltage (V): 12-240
Tolerance (%): ±5
TCR (ppm/C): 50
Applications of the GBR-605 Series Thick Film Heating Elements
Where RARA resistive heaters are deployed in the field.
High-frequency power electronics — non-inductive load and damping resistors in switching converters, inverters, and gate drive circuits where inductance below 3µH is required
High-temperature industrial process heating — surface heating elements in systems requiring element temperatures up to 500°C
Precision surface heating systems — stable, uniform heat delivery for laboratory instruments, analytical equipment, and controlled thermal platforms
RF and microwave damping networks — compact low-inductance power resistors for signal termination and impedance matching at elevated frequencies
Rapid thermal cycling equipment — pulse power capability for fast-ramp heating applications in testing, processing, and curing systems
Semiconductor and PCB fabrication — localised high-temperature heating of substrates and components during reflow, bonding, and curing processes
Automotive and EV power systems — wide voltage range compatibility for DC-DC converters, on-board chargers, and battery thermal management
Medical and diagnostic instrumentation — low-TCR heating elements for temperature-sensitive analytical and clinical measurement devices
Fluid and gas heating assemblies — high-temperature capable elements for flow-through heating, gas pre-heating, and vaporisation applications
Aerospace and defence electronics — high-temperature-rated ceramic heating elements for thermally demanding controlled-environment and ruggedised systems
Related Products of the GBR-605 Series Thick Film Heating Elements
Model: GBR-618
Resistor type: Heater
Description: Thick film elements
Power Rating: 5W~20W
Supply Voltage (V): 3-24
Tolerance (%): ±1
TCR (ppm/C): 100
Model: GBR-619
Resistor type: Heater
Description: Thick film elements
Power Rating: 10W~100W
Supply Voltage (V): 12-230
Tolerance (%): ±10
TCR (ppm/C): 100
Model: GBR-620
Resistor type: Heater
Description: Thick film elements
Power Rating: 1W~2W
Supply Voltage (V): 12-240
Tolerance (%): ±5
TCR (ppm/C): 50
Model: GBR-666
Resistor type: Heater
Description: Thick film elements
Power Rating: 10W~100W
Supply Voltage (V): 12-240
Tolerance (%): ±5
TCR (ppm/C): 50
Why Choose RARA Resistive Heaters
What sets RARA apart for engineers and procurement managers in industrial and automotive markets.
01
Three Technologies
Metal clad space heaters, PTC self-regulating elements, and thick film heaters — RARA covers every industrial heating requirement from a single ISO-certified supplier.
02
Wide Voltage Range
From 3V DC low-voltage PCB warmers to 240V AC panel space heaters — the GBR series and RSHT/RSH range cover virtually any supply voltage in industrial or building systems.
03
PTC Self-Regulation
PTC models (YB, GBR-603) are inherently self-limiting — no thermostat or controller required. As temperature rises, power draw automatically decreases, preventing overheating by design.
04
Global Track Record
Deployed by Siemens, Schneider Electric, Rockwell, and Hanwha in industrial panels and power systems across six continents — backed by ISO 9001 and IATF 16949 certification.
