Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
SXN SMNR4020-10UH Inductor SMNR4020
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- SXN SMNR4020-10UH
- Type
- SXN
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- SXN
- Electronic Component
- SMNR4020-10UH
- Electronic Component
- 1
- Package
- SMD,4x4x2mm
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.135g
- Inductor
- 10uH
- Electronic Component
- 1
- Electronic Component
- BM0265061690
- Current
- 1.6A
- Resistor(DCR)
- 215mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMNR4020-10UH 产品概述
一、产品简介
SMNR4020-10UH 是顺翔诺（SXN）推出的一款低外形、表贴式磁胶屏蔽功率电感。器件尺寸为 SMD 4×4×2 mm，电感值 10 μH，公差 ±20%，额定电流与饱和电流均为 1.6 A，直流电阻（DCR）为 215 mΩ。该型号针对空间受限且需中等电流承载的电源滤波与升降压转换器应用进行了优化，兼顾体积、散热与抑制电磁干扰（EMI）的需求。
二、主要参数
- 型号：SMNR4020-10UH
- 品牌：SXN（顺翔诺）
- 封装：SMD，4 × 4 × 2 mm（低外形）
- 电感值：10 μH，公差 ±20%
- 额定电流：1.6 A
- 饱和电流（Isat）：1.6 A
- 直流电阻（DCR）：215 mΩ
- 类型：磁胶屏蔽电感（屏蔽结构，降低磁泄漏）
三、特性与优势
- 低外形小尺寸：4×4×2 mm 的封装适合高度受限的移动设备和便携式电源模块。
- 中等电流能力：1.6 A 的额定与饱和电流使其可在小功率 DC‑DC 转换器和电源滤波中稳定工作。
- 屏蔽结构：磁胶屏蔽设计有效抑制磁场外泄，减小对周围敏感元件的干扰，利于密集布局。
- 成本与工艺平衡：磁胶材料在保证电感特性的同时，适配常规 SMT 回流工艺，良好的一致性与批次稳定性。
四、典型应用
- 升压/降压（Boost/Buck）和降压-升压（SEPIC）DC‑DC 转换器中的输出滤波与储能元件；
- 电源输入滤波（EMI 滤波）与旁路滤波；
- 便携式设备、电池管理系统（BMS）、便携式充电设备、物联网终端等中小功率电源模块；
- 工业控制与仪表中对空间与抗干扰有要求的电源设计。
五、设计与使用建议
- 热与功耗：DCR 为 215 mΩ，在接近额定电流下会产生显著的铜损与功耗，建议在电路设计时预留足够的安全裕度，或选择更低 DCR 的器件以降低发热。
- 电流裕度：建议工作电流低于额定电流的 80% 为宜，以避免长期接近饱和导致电感下降和温升问题。
- 布局注意：器件为屏蔽结构，可靠近敏感器件放置，但仍需遵循良好的电源布局原则——短而粗的电流回路、合理放置旁路电容和输入/输出滤波网络。
- 焊接工艺：支持常规回流焊，建议按厂家推荐的焊接温度曲线和焊盘设计进行，确保焊点可靠性与热传导。
- 频率特性：电感在高频下会受寄生电阻与磁芯损耗影响，设计时应参考器件频率响应与纹波电流曲线（如有测试数据）以选择合适的开关频率。
六、结论
SMNR4020-10UH 以其紧凑的 4×4×2 mm 封装、10 μH 的电感值及 1.6 A 的电流承载能力，适合空间受限且对抗干扰有要求的小功率电源应用。在实际设计中需权衡 DCR 带来的功耗与热管理要求，并留有适当的电流裕量以确保长期可靠工作。若需更详细的电气特性曲线、封装图或回流焊建议，请联系顺翔诺技术支持获取完整规格书。
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.
