WMSIC Electronic Components

YJYCOIN YNR8040-680M YNR8040

ModelYNR8040-680M
PackageSMD,8x8mm
BrandYJYCOIN
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
YJYCOIN YNR8040-680M
Type
YJYCOIN
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJYCOIN
Electronic Component
YNR8040-680M
Electronic Component
1
Package
SMD,8x8mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
1.17g
Inductor
68uH
Electronic Component
1
Electronic Component
BM0265675727
Current
1.25A
Resistor(DCR)
196mΩ
Electronic Component
Electronic Component
Electronic Component
1000

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

YNR8040-680M 功率电感产品概述

一、产品核心身份与定位

YNR8040-680M是益嘉源(YJYCOIN)推出的一款磁胶屏蔽贴片功率电感,型号中:

  • “YNR”为品牌系列代号,代表该系列电感的设计与工艺标准;
  • “8040”对应封装尺寸(8mm×8mm×4.2mm),属于小体积贴片封装;
  • “680M”表示电感值为68μH(“680”即68×10μH)、精度±20%(“M”是电感精度标识,商用级常见公差)。

作为小功率电源电路的核心储能/滤波元件,它兼顾了电磁屏蔽性、小体积与成本优势,适用于消费电子、工业控制等对EMI(电磁干扰)敏感的场景,是替代传统非屏蔽电感的实用选择。

二、关键参数深度解析

1. 电感值与精度

电感值为68μH±20%,实际范围在54.4μH~81.6μH之间,满足多数常规DC-DC转换电路的储能需求。20%精度属于功率电感的商用级标准,平衡了性能与量产成本,无需额外校准即可稳定工作。

2. 额定电流

额定电流1.25A,指电感在-40℃~85℃工作温度下,电感值下降不超过30%的最大连续电流。若电流超过此值,磁芯会进入饱和状态,储能能力大幅下降,可能导致电路输出电压波动、元件发热加剧。

3. 直流电阻(DCR)

DCR为196mΩ,是电感绕组的直流电阻,直接影响导通损耗(损耗=I²×R)。196mΩ的阻值在同规格电感中处于中等偏优水平,能有效降低工作时的发热,提升电源转换效率(约提升2%~3%,相比同电流下250mΩ的电感)。

4. 封装与屏蔽特性

  • SMD贴片封装:8×8×4.2mm体积紧凑,符合IPC标准引脚,支持回流焊、波峰焊等自动化生产;
  • 磁胶屏蔽:通过环保磁胶包裹铁氧体磁芯,相比金属屏蔽壳,成本更低且屏蔽效果稳定,避免共振干扰,有效抑制对外辐射与外部侵入干扰。

三、工艺与可靠性特点

1. 磁芯与屏蔽工艺

采用高磁导率铁氧体磁芯+磁胶密封,磁芯一致性好,饱和磁通密度高;磁胶无金属杂质,避免了屏蔽壳与磁芯的涡流损耗,进一步提升效率。

2. 绕组设计

绕组采用0.2mm漆包线多层绕制,匝数均匀,减少分布电容(约2pF),适合高频(100kHz~1MHz)电源电路的滤波需求。

3. 可靠性验证

产品通过-40℃~85℃温循测试(1000次)、240小时湿热测试(85℃/85%RH),引脚焊接强度≥5N,满足工业级与消费级产品的可靠性要求。

四、典型应用场景

  1. 便携式电子设备:智能手机、平板电脑的PMIC(电源管理芯片)降压电路(如12V转5V/1A),兼顾小体积与低EMI;
  2. 消费类电子产品:机顶盒、路由器、智能音箱的开关电源滤波,过滤纹波(纹波抑制比≥30dB@100kHz);
  3. 工业控制电路:PLC传感器模块、小型电机驱动的辅助电源,磁胶屏蔽减少对模拟电路的干扰;
  4. 车载小功率电路:车载充电器(5V/1A输出)、仪表盘背光电源,满足宽温工作需求。

五、使用注意事项

  1. 电流降额:连续工作电流建议控制在1A以内(取额定电流的80%),脉冲电流需降额至0.8A以下,避免磁芯饱和;
  2. 焊接温度:回流焊峰值温度≤260℃(持续时间≤10秒),波峰焊温度≤250℃(持续时间≤5秒),防止磁芯开裂;
  3. 存储环境:存储温度-55℃~125℃,湿度≤60%,避免磁芯受潮(受潮后电感值会下降约5%);
  4. 布局建议:电感尽量靠近电源输出端,避免与高频信号线平行,进一步降低EMI。

六、选型参考

若需更高电流(如2A),可选择同系列YNR8040-680M高电流版(DCR约220mΩ,额定电流2A);若需更小封装(6×6mm),可考虑益嘉源YNR6030-680M;若对精度要求更高(±10%),需切换至“K”档精度的对应型号(如YNR8040-680K)。

YNR8040-680M凭借磁胶屏蔽、小体积与可靠性能,成为小功率电源电路的高性价比选择,广泛适配消费电子、工业控制等多领域应用。

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