4.5W 10M F Precision Cylindrical High Voltage Resistors for X-ray machines
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.
Features:
1.Work under continuous high voltage environment .
2.Non-Inductive,Resistance-high voltage,small size,high power,long life,moisture resistance,high stability .
3.Lead Material:copper,tin-plated ;
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,etc.
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