Power Thick Film Resistors RPVH120/1-22K-±5%
3 year ago
RPVH120 Power Thick Film Resistors
Scope：
This specification specifies the general characteristics and requirements for RPVH 120 power type thick film resistors.
Dimensions：Size name:mm Package type: SOT-227
Resistor structure：
Reference Standard：
GB/T 5729-2003 Fixed Resistors for Electronic Equipment Part 1: General Specification
GB/T 2828.1-2012 Batch-by-batch inspection technical sampling procedure and sampling table GB/T 2691-2016 Marking method of resistors and capacitors
The main technical parameters：
|
Rated power |
When the base plate temperature is ≤70℃, the rated power is 120W |
|
Resistance /Ω |
1--1M |
|
Allowable deviation |
±5% |
|
Temperature Coefficient |
±250ppm/℃(25-85℃) |
|
Maximum working voltage |
1500V DC |
|
Insulation withstand voltage |
5KV DC 1min |
|
Distributed capacitance |
＜45pF |
|
Insulation resistance |
＞10GΩ |
|
Range of working temperature |
-55℃-+155℃ |
Main inspection items, inspection methods and performance requirements:
|
project |
Test conditions |
Performance requirement |
|
Terminal strength |
Soft lead pull: 10N, stud type 1.0N.m torque |
ΔR≤±（1%R+0.05Ω） |
|
high frequency vibration |
Frequency 10~500Hz, 10g, 6h |
ΔR≤±（1%R+0.05Ω） |
|
overload |
Apply 1.5 times the rated power voltage for 10s |
ΔR≤±（0.4%R+0.1Ω） |
|
Room temperature durability |
The rated power load is 1000 h, and the bottom plate temperature is less than 70 ℃ |
ΔR≤±（5%R+0.05Ω） |
Radiator installation method and requirements
The resistor is installed on the radiator with 2 M4 screws, and the installation torque is less than or equal to 1.3N.m (to ensure the use of power and excellent heat dissipation);
The contact surface must be cleaned;
The flatness of the radiator is: 0.05mm-0.1mm (within the range of 100mm); The roughness of the radiator must be 6.3цm;
To improve thermal conductivity, contact surfaces (alumina, heat sinks) should be coated with silicone grease.
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