WMSIC Electronic Components

FH RC-01W49R9FT

ModelRC-01W49R9FT
Package0201
BrandFH
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
FH RC-01W49R9FT
Type
FH
Minimum package
15000 圆盘

Technical parameters

Power
50mW
Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
RC-01W49R9FT
Electronic Component
1
Package
0201
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.008g
Electronic Component
49.9Ω
Electronic Component
50
Electronic Component
BM0263548235
Operating Temperature
55℃~+125℃
Operating Voltage
25V
Electronic Component
±200ppm/℃
Resistor Type
Resistor

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

RC-01W49R9FT 产品概述

RC-01W49R9FT 是风华(FH)系列的一款超小型厚膜贴片电阻,阻值为 49.9Ω,精度 ±1%,封装规格 0201。该器件以体积小、可靠性高、适配高密度贴装为主要特点,适合手机、可穿戴设备、精密模拟前端及各种空间受限的电子产品中用作阻抗匹配、分压、阻尼及一般电路限流用途。

一、主要技术参数

  • 电阻类型:厚膜电阻
  • 标称阻值:49.9Ω
  • 精度:±1%(F级)
  • 额定功率:50 mW(环境温度 70℃ 下)
  • 最高工作电压:25 V
  • 温度系数:±200 ppm/℃
  • 工作温度范围:-55℃ ~ +125℃
  • 封装:0201(公制超小型)
  • 品牌:FH(风华)

二、产品特点与优势

  • 体积超小(0201),便于高密度 PCB 布局与轻薄化产品设计。
  • 厚膜工艺成本效益高,工艺成熟、良率稳定,适合大批量量产。
  • 精度为 ±1%,配合 ±200 ppm/℃ 的温度系数,在多数通用电子应用中可提供稳定的阻值表现。
  • 电压耐受 25 V,满足低压电路中的常规使用需求。
  • 宽温工作范围,适应工业级温度环境要求。

三、典型应用场景

  • 移动通信、智能穿戴与 IoT 终端的信号阻尼与匹配网络。
  • 模拟电路中的分压、偏置与反馈网络。
  • 高频小信号路径的阻抗控制(需考虑厚膜特性对高频的影响)。
  • 测试与测量仪器中对空间、重量敏感的元件替代方案。

四、选型与注意事项

  • 功耗匹配:0201 的额定功率仅 50 mW,若工作环境温度偏高或存在瞬态大电流,应合理留有功率裕度或选择额定功率更高的封装。
  • 电压限制:工作电压不得超过 25 V,超压会引起电阻击穿或长期漂移。
  • 阻值稳定性:厚膜材料相较于薄膜在温漂与长期稳定性上差异较大,若对温漂要求严苛(如精密测量),建议评估 ±200 ppm/℃ 在整个工作温度下的影响或选用更低 TCR 的产品。
  • 高频特性:厚膜电阻在高频下可能存在寄生电感、电容,需在射频应用中进行等效建模与实测验证。

五、PCB 封装与焊接建议

  • 由于 0201 尺寸极小,推荐采用自动贴装与精密回流焊工艺,避免手工焊接造成损伤。
  • 焊盘设计应遵循厂商推荐的焊盘尺寸与阻焊开口,焊锡量宜控制,以减少热应力与焊接应力。
  • 回流焊温度曲线应与无铅焊接规范相符,避免多次回流或超温造成电阻性能劣化。
  • 保持元件在焊接前后免受机械应力(弯曲、冲击)与过度湿度影响,如长期储存建议使用防潮包装。

六、可靠性与储运

  • 在规定的工作温度范围内使用可保证长期稳定性;极端环境下建议进行加速老化测试以确认寿命。
  • 储运时避免长时间暴露于高温、高湿环境;如封装为卷带,遵循常见的防潮条款,必要时在贴片前执行烘烤去湿。
  • 小体积器件易受机械应力影响,搬运与贴装过程中应采取静电防护与精细操作。

总结:RC-01W49R9FT(FH 风华,0201,49.9Ω ±1%)为一款适用于高密度、轻薄化电子产品的厚膜贴片电阻,具有体积小、制造成本低、满足一般精度与温漂需求的特点。在选型与应用时,应重点关注功耗、工作电压、温漂对系统性能的影响,并按规范进行 PCB 布局与焊接工艺控制,以确保最终产品的可靠性与长期稳定性。

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.