RTP50W,TO220 功率型厚膜无感电阻-Tai Wang Jia (Huizhou) Electronics co.,Ltd.

RTP50

功率型厚膜无感电阻器
Power Type Thick Film Non Inductive Resistor

产品特点Product Features

1.安装在散热器，于25℃时，额定功率达50 瓦；在不使用散热片，25℃常温下，额定功率是3 瓦。

Installed on the radiator, with a rated power of 50 watts at 25 ℃ ; The rated power is 3 watts at room temperature of 25 ℃ without using heat sinks.

2.TO-220 模压塑封包装。TO-220 Molded plastic packaging.

3.只用一颗M3（3mm）螺丝，便可以安装于散热器上。Only one M3 (3mm) screw is needed to install it on the radiator.

4.保护性高的模压塑胶封外盒，且易于安装。Highly protective molded plastic outer box, and easy to install.

5.高绝缘度。 High insulation degree.

6.无感设计。 Sensorless design.

应用范围Application Scope

用于电源供应器的入口端、低能量脉冲负载、射频功率放大器之终端电阻、电压整流器、缓冲电路器、UPS。

Used for the inlet end of power supplies, low-energy pulse loads, terminal resistors of RF power amplifiers,voltage rectifiers, buffer circuits, UPS.

降功率曲线图Derating Curve

功率曲线Power Curve

尺寸图Dimensions Diagram

安装示意图Installation Diagram

结构图Structural Diagram

1	氧化铝基板	Alumina Substrate
2	电阻层	Resistor Layer
3	引脚	Lead
4	模压封装	Molding

实验项目与方法Experimental Projects and Methods

测试项目
Test project

基本要求
Basic Requirements

测试方法
Test Method

短时间过负荷

Short term overload

△R±0.3%

2 倍额定功率，但不超过[敏感词]耐压的 1.5 倍，连续 5 秒钟
2 times the rated power, but not exceeding 1.5 times the maximum withstand voltage, for 5 consecutive seconds

负载寿命

Load Life

△R±1.0%

额定功率下 2000 小时

2000 hours at rated power

耐湿测试

Humidity test

△R±0.5%

40±2℃、90～95%湿度下，在[敏感词]工作电压下维持 1000 小时（1.5 小时“开”，0.5 小时“关”）

Maintain 1000 hours at maximum operating voltage at 40 ±2 ℃

and 90-95% humidity (1.5 hours "on", 0.5 hours "off")

焊接附著性

solderability

90%以上覆盖新锡

Over 90% coverage of new tin

245±5℃持续 3 秒

245 ± 5 ℃ for 3 seconds

热冲击测试

Thermal Shock

△R±0.3%

-65℃～﹢150℃，100 次循环

65 ℃~+150 ℃, 100 cycles

引线强度

Lead strength

△R±0.2%

（拉力测试）2.4 牛顿

(Tensile test) 2.4 Newtons

高频震动

High-frequency vibration

△R±0.2%

20 公克震动

20 grams of vibration

绝缘强度

Dielectric Strength

△R±0.15%

1800V AC，60 秒

1800V AC，60 seconds

温度循环

Temperature Cycling

ΔR±0.3%

-65°C~+150°C，1000 次循环

-65°C~+150°C, 1000 cycles

电气特性规格Electrical Characteristics Specifications

型号 Type	阻值范围 Resistance Range			温度系数 TCR（PPM/℃）
	±0.5%	±1%	±5%
	/	≥0.1Ω～1Ω		±300
	/	≥1Ω～5Ω		±100
RTP50				±200 ±300
	≥5Ω～10Ω
				±50
	≥10Ω～100KΩ			±100
				±200

[敏感词]工作电压 Maximum operating voltage	450VDC
耐电压 Voltage endurance	1800VAC
绝缘电阻 Insulation resistance	10GΩ min
工作温度范围 Working temperature range	- 55 ° C～+150 ° C

选型示例Selection Example;RTP50/ 10RF

产品类型 Product type	功率 Power	阻值 Resistance	精度 Accuracy
RTP	50 Watts	3R9=3.9Ω	D：±0.5%
		10R=10Ω	F：±1%
		20K=20KΩ	J：±5%

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