Active Member
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[China]
Address: Yikang business building 11128#, Huarong Road 33#, Dalang Street, Longhua District, Shenzhen 518109, Guangdong, China
Contact name:Bin
Shenzhen Zenithsun Electronics Tech.CO.,LTD |
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300W 10k Thick Film Ultra High Power Resistors For Easy Mounting
Structure
1.starting resistors 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.Surfaces in contact must be carefully cleaned.
3.Non-inductive,High power,Small size,Easy mounting,recommendations
for mounting onto a water-cooled heatsink.
Features
1.Recommendations for mounting onto a heatsink to enhance the heat
dissipation.
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.
3.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.
4.Easy mounting,low thermal radiation of the case ;
Specification
| 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,for variable speed drives,power supplies,control
devices,robotics,motor control and other power designs.
How to make an order:
ZMP300_Ohmic Value_Tolerance
For example:ZMP300 20R 5%
