WMSIC Electronic Components

ROHM ESR03EZPJ5R1

ModelESR03EZPJ5R1
Package0603
BrandROHM
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ROHM ESR03EZPJ5R1
Type
ROHM
Minimum package
5000

Technical parameters

Power
250mW
Electronic Component
ROHM
Electronic Component
ESR03EZPJ5R1
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.021g
Electronic Component
5.1Ω
Electronic Component
1
Electronic Component
BM0259723370
Operating Temperature
55℃~+155℃
Operating Voltage
150V
Electronic Component
±200ppm/℃
Resistor Type
Resistor
Electronic Component
5000

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

ESR03EZPJ5R1 产品概述

一、产品简介

ESR03EZPJ5R1 是 ROHM(罗姆)出品的一款厚膜贴片电阻,封装为 0603(1608 公制),标称阻值 5.1 Ω,额定功率 250 mW,阻值精度 ±5%,允许工作电压 150 V,温度系数为 ±200 ppm/℃,工作温度范围 -55 ℃ ~ +155 ℃。该型号定位为通用型表面贴装电阻,适用于空间受限的消费类与工业电子设备。

二、主要特性

  • 厚膜工艺,结构稳定、成本效益高;
  • 小尺寸 0603(1608),便于高密度 PCB 布局;
  • 250 mW 额定功率,适合中低功率信号与偏置用途;
  • ±5% 精度,±200 ppm/℃ 温漂,适合一般精度要求的电路;
  • 宽温区工作能力(-55 ℃ ~ +155 ℃),可靠性良好;
  • 品牌:ROHM(罗姆),质量与供货稳定性有保障。

三、电气与热性能要点

  • 标称阻值:5.1 Ω;精度 ±5% 表示制造公差适中,用于不要求高精度阻值配合的场合;
  • 额定功率 250 mW 为封装在标准 PCB 贴装条件下的热耗散能力,实际允许功耗会随环境温度和 PCB 散热条件变化,需要按 ROHM 数据手册和具体应用对功率进行降额处理;
  • 允许工作电压 150 V,指在规定阻值下电阻两端允许的最高电压,应结合电路工作电压与安全裕度来选型;
  • 温度系数 ±200 ppm/℃,表示随温度变化阻值会发生可预测的偏移,适合对温度稳定性要求不极端苛刻的应用。

四、典型应用场景

  • 信号链路电阻、上拉/下拉电阻;
  • 滤波器、分压器中的阻抗匹配;
  • 小功率限流或阻尼元件(例如小电流 LED 支路、输入抑制);
  • 通用消费电子与工业控制电路,尤其是对尺寸和成本敏感的批量产品。

五、装配与使用建议

  • 封装 0603 要求精确的焊盘与回流曲线,请按 ROHM 或 PCB 制造商提供的推荐焊盘尺寸与回流工艺进行;
  • 在高温或高功耗应用中注意 PCB 散热设计——通过加大铜箔面积或使用散热层降低实际结温,从而避免过热导致的漂移或失效;
  • 若用于电流采样或要求高精度测量的场合,应评估 ±5% 精度与 ±200 ppm/℃ 温漂对系统误差的影响,必要时考虑更高精度或更低温漂的电阻方案;
  • 储存与潮湿敏感性按一般 SMD 元件操作,避免长时间潮湿暴露,焊接前如有必要做好预处理。

六、选型与替代注意事项

选择 ESR03EZPJ5R1 时应确认:所需阻值、精度与温漂是否满足电路误差预算;封装 0603 是否适配生产与维修工艺;额定功率与实际工作功耗是否匹配。若需要更高精度或更低温漂,可考虑薄膜或金属膜(或更高精度厚膜)替代;若功率需求高于 250 mW,应选用更大封装或专用功率电阻。

七、结论

ESR03EZPJ5R1 是一款面向通用电子应用的成本效益型厚膜贴片电阻,适合在空间受限且对精度要求不极端苛刻的场合使用。其 0603 小尺寸和 250 mW 功率等级在消费电子、工业控制等领域具有良好的适配性。最终选型应结合电路功率、温度工作点以及精度需求,并按 ROHM 数据手册执行焊接与热管理规范以确保长期可靠性。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

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.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.