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RALEC RTA03-4D330JTP是一款4位薄膜排阻,专为小型化电子电路设计,集成4个独立电阻于1206封装内,兼具高密度集成与稳定性能。其型号各部分含义清晰:
该产品属于低功耗排阻,单颗额定功率62.5mW,可满足大多数便携式、小型电子设备的功率需求。
单颗阻值33Ω,精度±5%(J档),无需额外校准即可满足常规电路功能需求,适合分压、上拉等对精度要求不苛刻的场景;若需更高精度,可升级至F档(±1%)。
单颗额定功率62.5mW,1206封装散热性能良好。实际使用建议降额至80%(即50mW以内),可有效避免过热老化,延长产品寿命。
温度系数±200ppm/℃,意味着温度每变化1℃,阻值漂移约0.0066Ω;工作温度范围-55℃~125℃,宽温环境下阻值稳定性优异,适合工业控制、车载等场景。
8引脚设计,4个电阻分别对应独立引脚(每电阻2脚),便于电路灵活连接:可单独使用某几个电阻,或通过引脚组合实现串联、并联,适配多样化电路需求。
该产品采用1206封装(英制尺寸:3.2mm×1.6mm),内部集成4个0603尺寸(1.6mm×0.8mm)的薄膜电阻,相比分散焊接4个0603电阻:
RALEC(旺诠)是全球知名被动元件制造商,拥有30+年电阻生产经验,产品通过ISO9001、ISO14001认证,符合RoHS 2.0、REACH等环保标准。
RTA03系列采用真空镀膜工艺制备薄膜电阻,相比碳膜电阻具有:
如STM32、51单片机的4路GPIO口需上拉电阻,使用该排阻可一次性完成配置,简化电路布线(避免4个分散电阻的焊接与布线)。
若需将05V信号分压至01V供ADC采集,33Ω电阻可与其他阻值电阻组成分压电路;4位排阻便于多路信号(如温度、湿度、压力)同时处理。
在蓝牙耳机、智能手环等低功耗设备中,RC滤波电路的电阻阵列可采用该排阻,减少元件体积,适配设备小型化需求。
4位排阻可作为数码管段码的限流电阻(每个段对应1个电阻),降低布线复杂度,适合小型显示模块(如电子时钟、计数器)。
如温度传感器的差分放大电路中,4个33Ω电阻可组成反馈网络,提高信号稳定性,适配工业控制场景。
RALEC RTA03-4D330JTP凭借高密度集成、稳定性能、高可靠性,成为小型化电子设计中4位排阻的优选方案,覆盖消费电子、工业控制、便携式设备等多场景,可有效简化电路设计、降低成本并提升产品竞争力。
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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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