RTP35WS，TO263 Power-Type Thick film Non-inductive Resistor-Tai Wang Jia (Huizhou) Electronics co.,Ltd.

RTP35S

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，底板中心温度≤25℃，额定功率35W；在不使用散热片，25℃常温下，额定功率是2.5W。

Installed on the radiator, the center temperature of the bottom plate is ≤ 25 ℃, and the rated power is 35W;The rated power is 2.5 watts at room temperature of 25 ℃ without using heat sinks.

2.表面贴装（SMD）TO-263 模压封装。 Surface mount (SMD) TO-263 molded package.

3.加散热片后，热阻Rth＜4.28ºK/W。 After adding heat sinks, the thermal resistance Rth is less than 4.28ºK/W.

4.可承受回流焊温度205℃/10S。 Can withstand reflow soldering temperature of 270 ℃/10S.

5.导电部分和金属底板绝缘。 Conductive parts and metal substrate insulation.

应用范围Application Scope

开关电源、减震器电路、自动机器控制器、射频功率放大器、低能量脉冲负载-UPS、电压调节。

Switching Power Supplies、Snubbers Circuits、Automated Machine Controller、RF Power Amplifiers、Low Energy Pulse Loading - UPS、Voltage Regulatio.

降功率曲线图Derating Curve

回流焊曲线图Reflow Soldering Curve Diagram

功率曲线Power Curve

尺寸图Dimensions Diagram

结构图Structural Diagram

1	铜散热片	Radiator Fin
2	氧化铝基板	Alumina Substrate
3	电阻层	Resistor Layer
4	铜脚	Copper Lead
5	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
RTP35S				±200 ±300
	≥5Ω～10Ω
				±50
	≥10Ω～100KΩ			±100
				±200

[敏感词]工作电压 Maximum operating voltage	350VDC
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:RTP35S/3R9

产品类型 Product type	功率 Power	阻值 Resistance	精度 Accuracy
RTP	35 Watts	3R9=3.9Ω	D：±0.5%
		10R=10Ω	F：±1%
		20K=20KΩ	J：±5%

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