WMSIC Electronic Components

VISHAY MMA02040C7500FB300

ModelMMA02040C7500FB300
PackageMELF-0204
BrandVISHAY
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
VISHAY MMA02040C7500FB300
Type
VISHAY
Minimum package
3000 圆盘

Technical parameters

Power
400mW
Electronic Component
Electronic Component
Electronic Component
VISHAY
Electronic Component
MMA02040C7500FB300
Electronic Component
1
Package
MELF-0204
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.042g
Electronic Component
750Ω
Electronic Component
1
Electronic Component
BM0228533069
Operating Temperature
55℃~+155℃
Electronic Component
±50ppm/℃
Resistor Type
Resistor
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

MMA02040C7500FB300 产品概述

一、产品简介

MMA02040C7500FB300 是 VISHAY(威世)推出的一款薄膜(Thin Film)MELF 型贴片电阻,阻值 750 Ω,精度 ±1%,温度系数(TCR)±50 ppm/℃,工作温度范围 -55℃ 至 +155℃。该型号为耐硫化(Sulfur Resistant)特殊处理,面向汽车级与工业级应用,并符合 AEC‑Q200 可靠性规范,采用带孔托盘或卷盘(T/R)包装,便于 SMT 生产。

二、主要技术参数

  • 电阻类型:薄膜电阻(Thin Film)
  • 阻值:750 Ω
  • 标称精度:±1%
  • 温度系数:±50 ppm/℃
  • 额定功率:400 mW(请以制造商规格书为准)
  • 工作温度:-55℃ ~ +155℃
  • 封装:MELF‑0204(MELF Pad SMD)
  • 特性:耐硫化处理,符合 AEC‑Q200(汽车级)

三、产品特性与优势

  • 精度与稳定性高:薄膜工艺保证了 ±1% 精度与低噪声特性,长期漂移小,适合精密电路。
  • 低温漂:±50 ppm/℃ 的 TCR 在宽温区间内保持阻值稳定,利于高精度测量与反馈回路。
  • 污染与硫化防护:表面和材料经过硫化防护处理,适合含硫气氛或工业环境,减少失效风险。
  • 汽车级可靠性:满足 AEC‑Q200 要求,能通过高温、振动、冲击等可靠性考核,适用车载电子系统。
  • MELF 封装优点:圆柱形(0204)封装热稳定性好、焊点可靠、机械强度高,适合高可靠性应用。

四、典型应用场景

  • 汽车电子:传感器信号调理、控制单元内阻值网络、参考分压等。
  • 工业控制:精密测量、放大器反馈、滤波网络与分压器。
  • 通信设备与测试仪器:需要低噪与低温漂的精密电阻场合。
  • 其他恶劣环境:含硫气氛的工厂或户外设备。

五、封装、焊接与可靠性注意事项

  • MELF‑0204 体积小、圆柱形,贴装时建议使用专用吸嘴或真空取放工具,避免滚动导致漏料。
  • 推荐按制造商提供的回流焊曲线进行焊接,控制峰值温度与时间以保证电阻和涂层性能。
  • 对于高功率或高热阻环境,应评估 PCB 散热条件,避免长期超额载流导致阻值漂移或失效。
  • 存储与搬运时避免机械刮擦与污染,长期保存请遵循湿敏等级与防潮要求。

六、选型与替代建议

选择本型号时应确认实际功率消耗与环境温度是否在器件允许范围内;若需更高功率或不同封装,可联系供应商或查询 VISHAY 系列产品矩阵。对于对成本敏感但对耐硫化需求不高的场合,可考虑同阻值的 SMD 贴片电阻替代,但需权衡性能与可靠性。

七、总结

MMA02040C7500FB300 以薄膜工艺、良好的温度稳定性与耐硫化性能为特点,结合 MELF‑0204 封装和 AEC‑Q200 认证,使其在汽车与工业级精密应用中具有很强的适用性。选用时关注 PCB 散热与贴装工艺,可充分发挥其长寿命与高可靠性的优势。若需最终参数或样片测试,建议参考 VISHAY 官方规格书与样品数据。

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