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B57891S203F8

产品分类: NTC热敏电阻
厂牌: TDK
产品描述: 20KΩ ±1% 200mW 通孔安装
供应商型号:
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标准整包数: 0
TDK NTC热敏电阻 B57891S203F8

B57891S203F8概述

    Product Introduction
    NTC thermistors (Negative Temperature Coefficient thermistors) are widely used electronic components designed to measure and compensate temperature changes. The product series B57891S by EPCOS is a line of leaded NTC thermistors with a lead spacing of 2.5 mm. These thermistors are known for their rugged construction and epoxy resin encapsulation, making them ideal for temperature-sensitive applications such as temperature measurement and compensation. Their primary function revolves around monitoring temperature variations in diverse industries like automotive, consumer electronics, and industrial controls.
    Technical Parameters
    The B57891S series features a range of resistance values at 25°C, including 2.2kΩ, 5kΩ, 10kΩ, 20kΩ, and 100kΩ. The corresponding tolerance options are ±1%, ±3%, and ±5%. Key technical specifications include:
    - Maximum Power Dissipation (P25): 200mW at 25°C.
    - Dissipation Factor (δth): Approximately 4mW/K.
    - Thermal Cooling Time Constant (τc): Approximately 15 seconds.
    - Heat Capacity (Cth): Approximately 60mJ/K.
    - Rated Temperature (TR): 25°C.
    - Climatic Category: 55/155/56 (per IEC 60068-1).
    The thermistors comply with UL approval (E69802) and come in various delivery modes such as bulk, cardboard tape, reeled, or Ammo pack. The approximate weight per thermistor is 0.2g.
    Product Features and Advantages
    The B57891S series offers several notable advantages:
    - Cost-Effective: Provides an excellent balance between cost and performance.
    - Robust Design: Encased in epoxy resin for enhanced durability.
    - Certification: UL-approved, ensuring compliance with safety standards.
    - Versatility: Available in multiple resistance values and tolerance options.
    - Customizable Lead Spacing: Can be ordered with a 5mm lead spacing upon request.
    These features make the B57891S series a reliable choice for engineers seeking accurate temperature sensing and compensation solutions.
    Application Case Studies and Usage Recommendations
    Applications:
    - Temperature Measurement: Ideal for use in systems where precise temperature readings are critical.
    - Temperature Compensation: Suitable for applications requiring adjustments based on temperature fluctuations.
    Use Cases:
    - Automotive Industry: Used in engine temperature monitoring and climate control systems.
    - Consumer Electronics: Incorporated in smart thermostats and portable devices.
    - Industrial Controls: Employed in manufacturing processes that require continuous temperature monitoring.
    Usage Suggestions:
    - Ensure proper handling during soldering to avoid thermal damage.
    - Select the appropriate resistance value based on the specific application requirements.
    - Implement protective measures against moisture ingress, as outlined in the manual.
    Compatibility and Support
    The B57891S series exhibits compatibility with standard soldering techniques and is supported by detailed documentation and technical support from EPCOS. The company provides comprehensive guidelines for installation, soldering, and maintenance, ensuring seamless integration into various circuits and devices.
    Common Issues and Solutions
    | Issue | Solution |

    | Resistance Drift Post-Soldering | Adhere to recommended soldering temperatures and durations to minimize drift. |
    | Moisture Damage | Prevent exposure to liquids and ensure no condensation occurs inside the device. |
    | Insufficient Mechanical Strength | Apply proper soldering techniques and adhere to specified bending limits. |
    Conclusion and Recommendation
    The B57891S series of NTC thermistors by EPCOS stands out due to its favorable price-to-performance ratio, robust design, and wide range of applications. Its excellent thermal properties and reliable performance make it an

B57891S203F8参数

参数
25℃时的电阻值 20KΩ
精度 ±1%
额定功率 200mW
B25/85 -
B0/50 -
B值容差 -
B25/75 -
B25/50 -
B25/100 -
7.5mm(Max)
安装方式 通孔安装

B57891S203F8厂商介绍

TDK公司是一家全球领先的电子组件制造商,总部位于日本东京。公司创立于1935年,以生产铁氧体磁芯起家,经过多年的发展,现已成为电子元器件领域的佼佼者。

TDK的主营产品涵盖了多个领域,主要包括:

1. 被动元件:包括电容器、电感器、滤波器等,广泛应用于消费电子、通信设备、汽车电子等领域。

2. 传感器:包括温度、湿度、压力、加速度等传感器,应用于工业自动化、医疗设备、汽车电子等领域。

3. 磁性材料:包括铁氧体磁芯、磁粉芯等,应用于电源、变压器、电机等领域。

4. 电源及能源:包括电池、电源模块等,应用于便携式设备、电动汽车等领域。

TDK的优势在于:

1. 技术创新:TDK拥有强大的研发实力,不断推出高性能、高可靠性的新产品。

2. 品质保证:TDK严格把控产品质量,为客户提供高品质的产品。

3. 客户服务:TDK在全球设有多个销售和服务网点,为客户提供及时、专业的技术支持和售后服务。

4. 环保理念:TDK积极推行绿色生产,致力于减少生产过程中的能源消耗和废弃物排放。

B57891S203F8数据手册

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TDK NTC热敏电阻 TDK B57891S203F8 B57891S203F8数据手册

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