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VISHAY SMM02040C7500FB300
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- VISHAY SMM02040C7500FB300
- Type
- VISHAY
- Minimum package
- 3000 圆盘
Technical parameters
- Power
- 250mW
- Electronic Component
- Electronic Component
- Electronic Component
- VISHAY
- Electronic Component
- SMM02040C7500FB300
- Electronic Component
- 1
- Package
- MELF
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.029g
- Electronic Component
- 750Ω
- Electronic Component
- 1
- Electronic Component
- BM0058414442
- Operating Temperature
- 55℃~+125℃
- Operating Voltage
- 200V
- Electronic Component
- ±50ppm/℃
- Resistor Type
- Resistor
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMM02040C7500FB300薄膜电阻产品概述
一、产品核心身份与定位
SMM02040C7500FB300是VISHAY（威世） 推出的迷你MELF封装薄膜电阻，属于高精度、小体积、宽温区适配的通用型电子元件。该产品针对高密度PCB布局、极端环境应用及中小功率电路需求设计，兼具稳定的电气性能与可靠的环境适应性，是工业控制、汽车电子、通信设备等领域的常用选型。
二、关键技术参数详解
该电阻的核心参数明确了其性能边界与应用范围，具体解析如下：
- 阻值与精度：标称阻值750Ω，精度±1%——实际阻值偏差控制在7.5Ω以内，满足信号分压、反馈网络等对阻值一致性要求较高的电路；
- 功率与耐压：额定功率250mW（1/4W），工作电压200V——适配传感器信号调理、低功耗控制等中小功率场景，且具备足够耐压能力避免过压损坏；
- 温度特性：温度系数±50ppm/℃，工作温度-55℃~+125℃——温度每变化1℃，阻值仅变化0.005%，宽温区覆盖汽车发动机舱、工业现场等极端环境；
- 封装规格：迷你MELF 0204封装——体积比常规SMD电阻缩小约30%，支持高密度PCB布局。
三、封装与结构特点
3.1 迷你MELF封装优势
MELF（金属膜无引脚）采用圆柱形无引脚结构，相比传统0204 SMD电阻：
- 体积更小、重量更轻，适配便携设备与高密度模块；
- 无引脚设计减少焊接点热应力集中，提升长期可靠性；
- 低寄生参数，适合高频电路信号传输。
3.2 薄膜电阻结构
采用真空沉积工艺形成的薄膜电阻层，区别于碳膜/金属氧化膜：
- 阻值稳定性高，长期使用无明显漂移；
- 噪声系数低，适配精密信号处理；
- 耐温性与宽温工作范围完美匹配。
四、典型应用场景
结合参数特性，该电阻适配以下场景：
- 汽车电子：发动机舱传感器（温度/压力）信号调理——宽温区满足汽车极端环境，高精度保证信号精度；
- 工业控制：PLC、变频器反馈网络——稳定温度系数确保控制回路准确性；
- 通信设备：基站、路由器高密度PCB——迷你封装节省空间，适配小体积模块；
- 消费电子：智能手机、可穿戴设备电源管理——小体积满足便携需求，250mW功率适配低功耗；
- 医疗设备：监护仪、血糖仪信号放大——低噪声提升信号质量，精度保证测量准确。
五、性能优势总结
该电阻核心优势可归纳为：
- 高精度稳定：±1%精度+±50ppm/℃温度系数，宽温阻值一致性可靠；
- 小体积高密度：迷你MELF 0204封装，适配高密度PCB布局；
- 宽温环境适配：-55℃~+125℃覆盖汽车、工业等极端场景；
- 可靠耐用：VISHAY工艺保障，薄膜结构降低长期漂移；
- 功率耐压平衡：250mW功率+200V电压，满足多数中小功率电路需求。
该产品凭借上述特性，成为对空间、精度、环境适应性有综合要求的电路设计首选之一。
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