WMSIC Electronic Components

ERJ2RKF2742X

ModelERJ2RKF2742X
Package0402
BrandPANASONIC
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
PANASONIC ERJ2RKF2742X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2RKF2742X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
27.4kΩ
Electronic Component
1
Electronic Component
BM0257349746
Operating Temperature
55℃~+155℃
Electronic Component
±100ppm/℃
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.

ERJ2RKF2742X 贴片厚膜电阻产品概述

ERJ2RKF2742X是松下(PANASONIC)推出的一款通用型厚膜贴片电阻,属于其经典ERJ系列,专为高密度电路设计打造,兼顾性能、成本与可靠性,适用于多类电子设备的信号调理、分压限流等基础电路场景。

一、产品核心身份与定位

该电阻属于0402封装(公制1005)厚膜贴片电阻,定位于工业级常规精度(±1%)、小功率(100mW)应用,核心参数清晰对应阻值27.4kΩ,温度系数±100ppm/℃,工作温度覆盖-55℃~+155℃,是松下针对中小功率电路推出的高性价比元件,广泛用于消费电子、工业控制等领域。

二、关键电气参数解析

2.1 阻值与精度

阻值为27.4kΩ,采用贴片电阻标准数字编码(2742)表示——前两位“27”为有效数字,第三位“4”为倍率(10²),即274×10²=27400Ω=27.4kΩ。精度±1%属于工业级主流精度,满足多数电路对阻值偏差的要求,无需额外高精度成本,平衡性能与成本。

2.2 功率与温度特性

  • 额定功率100mW,与0402封装的物理尺寸匹配,实际应用需遵循降额原则(如环境温度超过25℃时需降低功率使用);
  • 温度系数(TCR)±100ppm/℃,表示每变化1℃,阻值变化±0.01%,在常规温度波动(如-20℃~+60℃)下,阻值漂移可控制在±0.8%以内,满足多数应用的稳定性需求;
  • 工作温度范围**-55℃~+155℃**,覆盖工业级温度标准,可适应高低温交替的复杂环境(如车载、户外工业设备)。

三、封装与工艺特性

3.1 0402封装优势

封装尺寸约为1.0mm×0.5mm×0.5mm(长×宽×高),体积小、重量轻,适合高密度PCB布局(如智能手机主板、可穿戴设备),可有效减少电路空间占用。

3.2 厚膜工艺特点

采用厚膜丝网印刷+高温烧结工艺,在氧化铝陶瓷基底上形成电阻膜,相比薄膜电阻成本更低,且耐过流能力更强;端电极采用松下专利的多层结构(银/镍/锡),确保焊接可靠性,同时符合RoHS无铅环保要求,可直接用于绿色电子产品生产。

四、环境适应性与可靠性

  • 温度循环稳定性:通过-55℃~+155℃的1000次循环测试,阻值变化率≤±0.5%,端电极无脱落;
  • 湿度耐久性:在85℃/85%RH环境下放置1000小时,阻值漂移≤±1%,满足高湿度场景需求;
  • 焊接兼容性:支持回流焊、波峰焊工艺,焊接后无裂纹、阻值变化,符合IPC-A-610电子组装标准;
  • 机械强度:陶瓷基底与端电极的结合强度高,可承受SMT生产中的机械应力(如贴装、搬运),降低不良率。

五、典型应用场景

  1. 消费电子:智能手机、平板电脑的信号调理电路(如音频滤波、电源分压);
  2. 工业控制:PLC输入输出接口、传感器信号放大电路(如温度传感器信号处理);
  3. 汽车电子:车载信息娱乐系统、车身控制模块的辅助电路(部分批次支持AEC-Q200汽车级认证);
  4. 可穿戴设备:智能手环、手表的低功耗电路(利用小体积优势);
  5. 通信设备:小型基站、路由器的射频前端辅助电路(如功率分配、阻抗匹配)。

六、品牌与质量背书

松下作为全球电子元器件龙头厂商,ERJ系列电阻经过严格的全流程质量管控:

  • 批量生产一致性好,阻值、TCR等参数偏差控制在规格范围内;
  • 符合IEC 61000、JIS C 5201等国际标准,部分批次通过AEC-Q200汽车级认证;
  • 供货稳定,支持小批量(1000pcs起)至大批量采购,满足不同客户的生产需求。

综上,ERJ2RKF2742X是一款性能均衡、性价比突出的通用厚膜贴片电阻,可广泛适配多类电子设备的基础电路设计。

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.