Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RLP25FEER330是大毅科技针对电力电子领域中等功率场景推出的一款低阻值贴片分流器,核心定位为精准电流采样器件。电流采样是电力电子系统实现安全控制、效率优化的关键环节,该产品凭借均衡的性能参数、可靠的封装设计,成为工业自动化、新能源、消费电子等领域的常用选择。
传统插件式分流器存在体积大、贴装效率低的问题,难以适配现代电力电子设备的小型化需求。RLP25FEER330采用2512贴片封装,兼顾小型化与高功率性能,满足自动化贴装与高密度PCB设计要求,可同时覆盖工业级可靠性与消费电子成本需求。
额定阻值330mΩ(毫欧级),属于低阻采样电阻范畴——低阻值可大幅降低自身功耗对系统的影响(功耗公式:(P=I^2R)),避免因电阻发热导致的额外损耗;±1%的精度无需额外校准即可实现可靠的电流换算((I=V/R)),满足大多数工业级电流检测的误差要求(如10A电流下,电压降偏差仅±0.033V)。
2W额定功率,结合2512封装的氧化铝陶瓷基底导热设计,可在连续负载下稳定工作。实际应用中,短时间(10秒内)过载至3W仍能保持性能稳定(需配合PCB铜箔散热),覆盖多数中等功率场景(如电机驱动、电源适配器)。
±50ppm/℃,即温度每变化1℃,阻值变化±0.005%。例如环境温度从-40℃升至125℃(变化165℃),阻值变化仅±0.825%,远优于普通电阻的±100ppm/℃,适合宽温环境(汽车电子、工业车间),避免温度波动导致的电流测量偏差。
作为电流采样电阻/分流器,核心作用是将被测电路的电流信号转换为电压信号((V=I×R)),后端电路(运放、ADC)可通过检测电压实现电流监测、过流保护、功率计算等功能,是电力电子系统的“信号转换器”。
2512贴片封装(尺寸6.4mm×3.2mm),符合国际SMT标准,适配标准贴片机生产线,可实现批量自动化组装,降低生产制造成本。
核心采用锰铜合金电阻膜+氧化铝陶瓷基底:
产品经过振动(102000Hz,1.5g加速度)、冲击(1000m/s²,10次)、温湿度循环(-55℃125℃,500次) 等测试,符合工业级标准,可在恶劣环境下长期稳定工作。
RLP25FEER330的性能参数覆盖多领域中等功率电流采样需求,典型应用包括:
综上,RLP25FEER330凭借均衡的性能、可靠的设计与广泛的适配性,成为电力电子领域中等功率电流采样场景的优选器件,可有效提升系统的安全性、稳定性与效率。
Request for quote
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products