High power RPVH120 Power Thick Film Resistors
- Product Description
-
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 6.3um;
To improve thermal conductivity, contact surfaces (alumina, heat sinks) should be coated with silicone grease.
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