WMSIC Electronic Components

BOURNS SRN6045TA-4R7M

ModelSRN6045TA-4R7M
PackageSMD,6x6mm
BrandBOURNS
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BOURNS SRN6045TA-4R7M
Type
BOURNS
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
SRN6045TA-4R7M
Electronic Component
1
Package
SMD,6x6mm
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.92g
Inductor
4.7uH
Electronic Component
1
Electronic Component
BM0265522197
Electronic Component
AEC-Q200
Current
4.5A
Resistor(DCR)
26mΩ
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.

SRN6045TA-4R7M 产品概述

一、产品简介

SRN6045TA-4R7M 是 BOURNS 推出的半屏蔽绕线功率电感,封装为 SMD 6 × 6 mm,标称电感值 4.7 µH,公差 ±20%。该器件面向需要高电流、低损耗与车规可靠性的电源前端与点位负载应用,属于 AEC‑Q200 车规等级,适合汽车及工业环境使用。

二、主要参数

  • 电感值:4.7 µH(±20%)
  • 额定电流:4.5 A(连续工况参考值)
  • 饱和电流(Isat):6.8 A(电感开始明显下降的参考值)
  • 直流电阻(DCR):26 mΩ(典型值,低导通损耗)
  • 封装:SMD,6 × 6 mm(半屏蔽绕线结构)
  • 车规等级:AEC‑Q200

三、产品特性与优势

  • 半屏蔽结构在抑制磁通外泄与降低 EMI 与热散效率之间取得平衡,适合对电磁兼容与散热都有要求的设计。
  • 绕线工艺与较低的 DCR(26 mΩ)降低 I²R 损耗,提高转换效率与温升控制。
  • 较高的饱和电流(6.8 A)和 4.5 A 的额定电流,满足中高电流点位的稳态与瞬态需要。
  • AEC‑Q200 认证保证了在汽车温度、振动与可靠性测试下的适用性,便于车载电子与严苛工业场景的认证流程。

四、典型应用场景

  • 汽车电子:车载控制器、车身电子、信息娱乐和电源管理模块的 DC‑DC 降压/升压电路。
  • 工业与通信电源:点位负载供电、隔离/非隔离电源模块、LED 驱动及充电管理系统。
  • 其他需要高电流、紧凑封装与车规可靠性的电源解决方案。

五、设计与使用建议

  • 考虑直流偏置影响:在有直流电流存在时,电感值会随电流减小,设计时应在最大峰值电流与 Isat 之间留有安全裕量,避免进入饱和区导致输出纹波增大。
  • 损耗估算:导通损耗主要由 DCR 决定,可用 P≈I_rms^2 × DCR 估算。注意脉冲电流下的等效 I_rms 评估。
  • 布局与散热:将电感置于开关器件附近以缩小回流面积,使用足够焊盘和热释散安排(如过孔与散热铜箔)以改善热性能。
  • 焊接与可靠性:遵循厂商推荐回流曲线与机械应力限制,避免重复弯折和过高剪切力,以维持焊点可靠性。

六、可靠性与质量把控

SRN6045TA‑4R7M 通过 AEC‑Q200 车规等级要求,意味着其在高低温循环、振动、冲击与湿热等试验下具备稳定性。建议在量产前参考厂商详细 Datasheet 完成电气与热性能验证,并做必要的温升与寿命评估。

七、封装与采购说明

该产品为 SMD 6×6 mm 封装,常见供货形式为卷带(tape & reel),适合自动贴装。订购或获取样片时,请以完整型号 SRN6045TA-4R7M 向 BOURNS 或其授权分销商咨询,并参考最新版产品资料以确认回流温度曲线、允许误差与环境限制。

总结:SRN6045TA‑4R7M 适合需要中高电流、低损耗与车规可靠性的电源设计,半屏蔽绕线结构在 EMI 控制与散热间提供良好折衷,是汽车与工业电源点位的稳妥选择。若需更详细的频率特性曲线、温升数据或样品测试建议,请参阅厂方 Datasheet 或联系技术支持。

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