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%
