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Model RCH25S47000JS06
Description 适合 RCH 25 W 底盘系列的电阻器 Vishay Sfernice 25W RCH25 系列电阻器经设计，可安装在散热片上。 可耐受较高的短时间过载 厚涂层和非电感性 低热辐射 安装与 RH 线绕电阻器相同 特别适合用于高频率工作和切断电路 额定功率： | ---|--- \- 底盘安装 | 25 W \- 非底盘安装 | 4 W 最大工作电压： | 550 V 有效值 容差： | ±5% 温度系数： | | ±250 ppm/°C ≥ 1 Ω： | ±150 ppm/°C 热阻： | 1.4°C/W 介电强度： | 3500V 工作温度： | -55 - +125 °C 尺寸（长 x 宽 x 高）： | 28 x 27.5 x 15 mm 尺寸（毫米） --- L | W | H | P | F | T | S | 不提供 Ø D 螺钉 28 | 14 | 27.5 | 18.3 | 18.3 | 19.8 | 7.7 | 3.2 M3 ### 无电感性 - 面板安装 ### 非归纳 - 散热器可登上 几乎无电感性，厚膜功率电阻器，设计用于散热片直接连接，适合安装在有限空间内需简便连接的位置。 特别配制的金属陶瓷薄膜附着在高纯度氧化铝上，外壳为硬环氧模塑制品，内部集成端子。 小于等于 1Ω 的值具有 4 个接线端子，允许电压感应；所有其他值具有 2 个接线端子 应用包括主要参数是低电感、高频率和脉冲过载的电路。 **应用说明：**对于 25°C 时的 25 和 50W 类型和 70°C 时 100 和 250W 类型，从全功率线性下降到 125°C 时的零功率。 为了实现最佳热传导，建议在氧化铝底面和散热器机架/表面之间使用导热膏。 主要特点 --- 过载持续时间 | RCH25 | RCH50 | BDS100 | BDS250 1 s | 375W | 750W | 200W | 1500W 2 s | 300W | 600W | 150W | 1250W 5 s | 125W | 250W | 125W | 1000W 10 s | 75W | 150W | 100W | 750W 在 25° C 以上环境温度每升高一度，允许的过载便减少 1%。 主要特点表仅适用于适当安装在散热片上的电阻器，其热阻在额定功率为 25 和 50W 时为 1°C/W，额定功率为 100W 时为 0.7°C/W，额定功率为 250W 时为 0.28° C/W。 该数据仅当使用热油脂且电阻器通过安装螺钉正确拧紧时有效。 拧紧扭矩 --- RCH25 | RCH50 | BDS100 | BDS250 0.7Nm | 1Nm | 2Nm | 2Nm 尺寸 --- Sfernice 系列 | RCH 5 | RCH 10 | RCH 25 | RCH 50 L | 16.6 | 19 | 28 | 50 W | 9 | 11 | 14 | 15.5 H | 16.4 | 20.6 | 27.5 | 29.4 P | 10.2 | 12.7 | 18.3 | 33 F | 11.3 | 14.3 | 18.3 | 39.7 T | 12.5 | 15.9 | 19.8 | 21.4 S | 5.3 | 5 | 7.7 | 8 ØD | 2.4 | 2.4 | 3.2 | 3.2 | M2 | M2 | M3 | M3
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Brand: Vishay Semiconductor
Packaging Solder Lug
Delivery time
Packaging method Bag
Standard packaging quantity 1
30.44  yuan 30.44yuan
  • Freight charges：   In stock Freight rate：$13.00
  • Quantity： Inventory(3914) Minimum order quantity(1)
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Technical parameters/tolerances:

±5 %

 

Technical parameters/rated power:

25 W

 

Technical parameters/resistance:

4.7 kΩ

 

Technical parameters/operating temperature (Max):

125 ℃

 

Technical parameters/operating temperature (Min):

-55 ℃

 

Encapsulation parameters/installation method:

Solder Lug

 

Dimensions/Length:

28.00 mm

 

Dimensions/Width:

14.00 mm

 

Dimensions/Height:

9.00 mm

 

Physical parameters/operating temperature:

-55℃ ~ 125℃

 

Physical parameters/temperature coefficient:

±150 ppm/℃

 

Other/Packaging Methods:

Bag

 

Compliant with standards/RoHS standards:

RoHS-conform

 

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