Thick Film High Voltage Resistor Manufacturer
TSEC deliver application specific Thick Film High Voltage Resistors for a diverse range of applications. Whether it’s aerospace, medical equipment, telecommunications, or automotive electronics applications our resistors are engineered to excel in the most demanding environments.
Although a wide range of standard high voltage resistors is available, for some more demanding and specialist applications a standard resistor that is the closest available fit is not a viable option. A HV resistor performance issue resulting in system failure is a risk that cannot be tolerated.
We design and manufacture custom thick film high voltage resistors in low to medium volume for a diverse range of applications. These include circuit protection elements in power supplies, medical devices, industrial instruments, military systems (RADAR, SONAR), Anti-static systems, motor control, resistor divider circuits and balancing and emitter resistors.
Thick Film Resistor Manufacturing Capability
We design and manufacture application specific high voltage resistor products in the U.K in low to medium volume. For standard high voltage resistor designs, we cover:
Resistance – Ohmic Ranges 1 Ohm to 1,000 MOhms
Voltage maximum 80,000Volts (as single element)
Temperature co-efficient (TCR) 100ppm/°C (for standard designs)
Tolerance ±1% (for standard designs)
Wattage Ranges from low power (Watts) to KWatts depending on resistive element
We utilise air abrasive trimming to reduce the risk of substrate micro-cracking in high voltage applications. Laser trim can create narrow grooves and sharp edges that concentrate the electric field and current density. Failures can initiate at or across these points when under high voltage or pulse stress.
We work with system designers to understand the application before starting the custom thick film high voltage resistor design process. Analysis of datasheet parameters alone is rarely enough to ensure long-term reliable performance. Ambient temperature, moisture levels, mechanical stress, handling, overvoltage and surge conditions can all impact thick film resistor performance. It is important to understand the resistors specification limits.
Required High Voltage Resistor Application Information
Most specialist thick film high voltage resistor manufacturers will have a detailed understanding of resistor materials, design limits and manufacturing processes. However, only the system designer can understand the system requirements, steady state and transient conditions and mechanical and environmental limitations.
To ensure we consider all potential issues when designing a custom thick film high voltage resistor device, we ask customers to provide the following information:
- Operating Power
- Maximum continuous current
- Maximum continuous voltage
- Peak voltage/waveshape
- Required resistance value
- Resistor tolerance
- Tcr (ppm/C)
- Surge conditions (amplitude and waveform)
- Operating temperature range
- Max ambient temperature
- Environmental conditions
- Available board area.
- Resistor mounting method
- Termination type and material.
- Length of pin.
- Expected in service life.
- Target component cost.
- Quantity required.
- Required Date.
After considering this information, we will deliver an honest assessment of what can and cannot be achieved, cost implications of various options and timescales. In some cases, it may be necessary to produce a set of prototype resistors for approval before committing to manufacture production parts.
Standard High Voltage Resistor Products
The AHV Thick Film High Voltage Resistor Series:
Part Number
AHV15
AHV25
AHV30
AHV35
AHV45
AHV50
Package Detail
Maximum Power Dissipation
10W
15W
30W
20W
15W
30W
Maximum Power Dissipation at 70C
2.3W
5.8W
12.5W
8W
6.6W
12.5W
Maximum Dimensions
20 x 13.7mm
29 x 15mm
51.8 x 6mm
53 x 9.2mm
40 x 19mm
51.8 x 26.4mm
Contact TSEC to discuss your custom thick film high voltage resistor requirements on 01207 230728.