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RK73B1ETTP754J是日本KOA公司推出的通用型厚膜贴片电阻,属于该品牌经典的RK73B系列。其核心定位为微型化、高可靠性的基础电路元件,适配各类小型化电子系统的信号调理、分压、滤波等需求。
该产品参数严格遵循工业级设计标准,关键指标如下:
指标 规格值 说明 标称阻值 750kΩ 代码754(75×10⁴) 精度公差 ±5%(J档) 通用电路适配 额定功率 100mW 0402封装典型功率 最大工作电压 75V 需同时满足P=V²/R(75V时功率≈7.5mW) 温度系数(TCR) ±200ppm/℃ -55℃~+155℃范围内阻值漂移≤0.02%/℃ 工作温度范围 -55℃~+155℃ 覆盖极端环境(汽车/工业场景) 封装类型 0402(1005公制) 微型化高密度布局适配基于KOA成熟的厚膜工艺,该产品具备以下核心优势:
0402微型封装可将PCB占用面积减少60%以上,适合智能手机、智能手表、物联网传感器等对体积要求严苛的产品,支持多层PCB高密度布线。
采用丝网印刷+高温烧结工艺制造,相比薄膜电阻更耐机械冲击、高温老化,长期使用阻值漂移小(1000小时漂移≤0.5%)。
-55℃+155℃的工作温度覆盖汽车发动机舱(-40℃+125℃)、工业现场(-20℃~+85℃)等极端场景,无需额外降额设计。
±5%精度、100mW功率、75V电压的组合,可满足90%以上通用电路需求(如电源滤波、信号分压、偏置电路),无需额外选型成本。
采用符合RoHS2.0、REACH标准的无铅锡膏封装,适配无铅回流焊(220℃~245℃)与波峰焊工艺,焊接良率≥99.9%。
该产品因性能均衡、体积小巧,广泛应用于以下领域:
RK73B1ETTP754J通过多项国际标准测试,保障长期稳定运行:
该产品凭借体积小、性能稳、适配广的特点,成为消费电子、工业控制、汽车电子等领域的高性价比选择,可满足多数通用电路的基础电阻需求。
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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.
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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.
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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.
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