Resistors YZPST-RPVH120-1K

3 year ago

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7 year

Product details

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
RPVH120 Power Thick Film Resistors

Resistor structure：

Power Thick Film Resistors

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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