Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
cjiang FTC303018D4R7MBCA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FTC303018D4R7MBCA
- Type
- CJIANG
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FTC303018D4R7MBCA
- Electronic Component
- 1
- Package
- SMD,3x3mm
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.201g
- Inductor
- 4.7uH
- Electronic Component
- 1
- Electronic Component
- BM0232022222
- Current
- 3.4A
- Resistor(DCR)
- 72mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- and Current(Isat)
- 4.7A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FTC303018D4R7MBCA 产品概述
一、产品简介
FTC303018D4R7MBCA 是长江微电（cjiang）推出的一款功率电感，标称电感值为 4.7 μH，公差 ±20%。该器件采用表贴（SMD）封装，外形尺寸约 3.0 × 3.0 × 1.8 mm，专为开关电源和电源滤波场合设计，兼顾高电流承载能力与体积面积比。
二、主要电气参数
- 电感值：4.7 μH（±20%）
- 额定电流（Irms）：3.4 A（长期允许通过电流，受温升限制）
- 饱和电流（Isat）：4.7 A（磁芯开始显著磁饱和时的参考值）
- 直流电阻（DCR）：约 72 mΩ（对效率和温升有直接影响）
- 封装：SMD，约 3×3 mm（型号中“303018”表示封装尺寸）
三、产品特点
- 小型化：3×3 mm 级别的表贴封装，适合高密度贴片布局。
- 高通流能力：3.4 A 的额定电流满足多种中小功率转换器需要，4.7 A 的饱和电流保证峰值脉冲时仍有余量。
- 低直流电阻：72 mΩ 在同类件中处于合理水平，有利于降低 conduction 损耗，提升效率。
- 设计针对功率应用：磁芯与绕组工艺优化，兼顾温升与抗饱和性能。
四、典型应用场景
- 降压/升压 DC-DC 开关稳压器中的储能电感
- 电源滤波（输入侧或输出侧）与去耦
- 电池供电设备、移动设备电源管理
- 工业控制、网络设备以及中低功率汽车电子（需按车型级别做额外验证）
五、选型与使用建议
- 电流裕量：设计时应以额定电流 Irms 为连续工作电流参考，建议预留 20% 以上裕量以控制温升；短时脉冲应以 Isat 为上限，避免进入深度饱和区导致电感值剧降。
- 损耗与效率：若系统对效率要求较高，应关注 DCR 对导通损耗的影响，必要时可选择更低 DCR 的同类品或并联多相设计降低电流应力。
- 温度与能量：注意工作环境温度与散热条件，高温会降低电感性能并加速老化，应在最大温度下验证电感值和 DCR 变化。
- EMC 考量：布局时尽量缩短信号回路面积，配合合适的输入/输出电容，可改善开关噪声与辐射。
六、封装与焊接注意事项
- 推荐按厂家资料的回流焊工艺曲线进行焊接；避免超温或长时间高温以免影响磁性能。
- 贴片放置与焊盘设计需保证良好机械支撑与散热，焊锡量适中，避免机械应力造成损伤。
- 生产与检验：首件及批量生产时应做温升、直流电阻与电感值抽检，确认在工作工况下满足电气与热学指标。
总结：FTC303018D4R7MBCA 以紧凑尺寸、高通流和合理 DCR 为主要卖点，适合中低功率开关电源与滤波场合。选型时兼顾额定电流与饱和电流的差异，并按实际热环境调整裕量，可获得更稳定可靠的电源性能。若需更详细的电气曲线、温漂或封装图，建议索取厂家规格书进行最终设计验证。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
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.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
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.
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
Packaged components ready for RFQ.
