Power and Precision High Voltage Resistors TCR of ±100 ppm/°C
200W 100M J Power and Precision High Voltage Resistors ,TCR of ±100 ppm/°C
Structure :
1.Screen printing ,resistor film printed layer with thickness of tens of microns,sintered at temperature.
The matrix is 95% aluminum oxide ceramic,with good thermal conductivity and high mechanical strength.
The resistor film with precious metal ruthenium slurry,with stable electrical properties.
2.Technological Process:electrode printing electrode sintering resistor printing resistor sintering medium printing
medium sintering,then resistance adjustment,welding,encapsulation and other processes.
3.Full encapsulation over the entire resistor length.
Features:
1.Work under continuous high voltage environment .
2.Non-Inductive,Resistance-high voltage,small size,high power,moisture resistance,high stability .
3.Lead Material:bolt /screw end caps ;
4.Our resistors are designed for operation in air and nonaggressive atmosphere,special applications like oil, casting, molding, etc.,
Specifications :
| Performance Charactertics | |
| Test | Conditions of Test | Testing Results |
| Resistance Tolerance | Testing Voltage ≤3V,Ambient Temperature 25℃ | B--C--D---F---G---J--K |
| Temperature Coefficients | R0:Room Temperature(T0)Resistance Value
R1:Room Temperature T0+100℃(T1)Resistance Value | ±15～±1000PPM/℃ |
| Short Time Overload | 5 times rated power for 5 seconds,but not over 1.5 times Umax | △R≤±(0.2％+0.1Ω) |
| Insulation Resistance | 1000V DC | ≥10GΩ1Min |
| Load Life | at rated voltage,90 min "On",30 min "Off" ,total 1000hours | △R≤±(0.5％+0.1Ω) |
| Humidity Resistance | Temp.:40±2℃ ,Humidity:90％-95％.240hours | △R≤±(0.4％+0.1Ω) |
| High /Low Temperature Resistance | store at - 65 ℃ ~ 155 ℃ for 2H ,cycle for 5 times | △R≤±(0.2%+0.1Ω) |
| Operating Temperature | -55℃～125℃ | / |
Applications:
Widely used in high voltage power equipment,medical CT and X-ray machines,high voltage testing equipment,high voltage power supply,vacuum equipment,high voltage frequency converter,voltage divider,high voltage circuit,capacitor discharge circuit,high voltage buffer circuit,environmental protection equipment,electrostatic dust removal equipment,power system,high voltage instruments and meters,pulse modulator,imaging equipment, etc.
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