Heat Sink Mountable Thick Film Resistor Non Inductive High Power
Heat Sink Mountable Non-inductive Thick Film High Power Resistors ,
for Mounting onto a Heatsink,Thick Film Technology
Structure
1.Screen printing,resistor film printed layer with thickness of tens of microns,sintered at temperature.
The matrix is 96% 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.Recommendations for mounting onto a heatsink to enhance the heat dissipation.Thick Film Resistor for high-frequency and pulse-loading applications;
2.The bottom case is attached to the system heatsink,and the resistor dissipates the heat through the heat exchange between the bottom case and the heatsink.The ambient temperature here refers to the bottom case temperature of the resistor, which is generally referred to as the temperature in the center of the bottom case.
3.Non-Inductive,resistance-high voltage,small size,high power,long life,moisture Resistance,high stability.
Specifications :
| Performance Charactertics | ||
| Test | Conditions of Test | Testing Results |
| Resistance Tolerance | Testing Voltage ≤3V,Ambient Temperature 25℃ | B---D---F---G---J--K |
| Temperature Coefficients | R0:Room Temperature(T0)Resistance Value R1:Room Temperature T0+100℃(T1)Resistance Value |
±50～±500PPM/℃ |
| Short Time Overload | 5 times rated power ,but not more than 1.5 times the maximum continuous working voltage for 5 seconds | △R≤±(0.3％+0.1Ω) |
| Insulation Resistance | 500V DC | ≥10GΩ1Min |
| Room Temperature Durability | Rated votage,90mins on ,stop 30mins,the central bottom case temperature ≤ 85 ℃(120W-800W), the central bottom case temperature ≤ 25 ℃(30W-100W),total 1000hours |
△R≤±(0.5％+0.1Ω) |
| Humidity steady state | Temp.:40±2℃ ,Humidity:90％-95％.56days | △R≤±(0.25％+0.1Ω) |
| High/Low Temperature Resistance Testing | store at -55℃～125℃ for 2H, cycle 5times | △R≤±(1%+0.1Ω) |
| Working Ambient Temperature | -55℃～150℃ | / |
Applications:
Widely used in Variable speed drive, power supply, control equipment,communication,automatic control,engine control,power electronics,medical devices,power transmission,capacitor voltage equalization,capacitor discharge,power load,automotive electronics, induction heating,power supply equipment,electrical transmission,reactive power compensation,RC absorption and discharge, and other power electronics industries.Wind power generation,photovoltaic power generation and other new energy fields.
Product Image:
How to make an order:
ZMP30_Ohmic Value_Tolerance
For example:ZMP30 40R 10%
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