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BOURNS SRN3012TA-2R2M
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BOURNS SRN3012TA-2R2M
- Type
- BOURNS
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- SRN3012TA-2R2M
- Electronic Component
- 1
- Package
- SMD,3x3mm
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.077g
- Inductor
- 2.2uH
- Electronic Component
- 1
- Electronic Component
- BM0264533025
- Electronic Component
- AEC-Q200
- Current
- 1.7A
- Resistor(DCR)
- 80mΩ
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SRN3012TA-2R2M 产品概述
一、基本特性
SRN3012TA-2R2M 为 BOURNS 出品的功率屏蔽型磁胶电感，封装为 SMD 3×3 mm，标称电感值 2.2 μH，公差 ±20%。额定电流为 1.7 A，饱和电流（Isat）为 1.5 A，直流电阻（DCR）约 80 mΩ。器件符合 AEC‑Q200 车规等级，适合车载与高可靠性应用。
二、性能亮点
- 磁胶屏蔽结构：有效抑制磁通泄露，减少对邻近敏感器件的干扰，有利于高密度布板设计。
- 小尺寸高电流：3×3 mm 封装在保持较低 DCR 的同时支持接近安培级的工作电流，适配点载（POL）与降压电路。
- 车规认证：AEC‑Q200 认证保证在温度循环、机械振动及长期老化条件下的可靠性。
三、典型应用场景
- DC‑DC 降压（buck）转换器的输出滤波/能量储存；
- 点式电源（point-of-load）和电源模块；
- LED 驱动电源、车载电子（仪表、车身控制模块、信息娱乐）、通信电源等对体积与可靠性要求较高的场合。
四、选型与使用建议
- 饱和与余量：Isat 为 1.5 A，建议连续工作电流控制在 70%～80% 的范围内以避免电感量显著下降与温升问题；突发脉冲可接近或短时超过 Isat，但需评估电感下降对电路性能的影响。
- 损耗估算：可通过 Ploss = I^2 × DCR 估算铜损；例如在额定电流 1.7 A 时，Ploss ≈ 1.7^2 × 0.08 ≈ 0.23 W，需考虑器件升温与周围散热条件。
- 直流偏置效应：工作电流会使有效电感下降，设计时应考虑电流下的电感保持率，必要时在原型阶段测量实际电感值。
- 布局建议：靠近开关管/二极管放置以缩短高频回流环路，保持器件引脚焊盘和散热通路良好；利用屏蔽特性可在相邻导体附近紧凑布局，但仍需留意磁饱和极限。
五、可靠性与工艺注意
- 焊接：遵循制造商的焊接工艺与回流曲线（Pb‑free），避免超过推荐峰值温度和滞留时间。
- 贮存与搬运：避免受潮与机械冲击，贴片前如有必要按焊膏规范进行烘烤回流。
- 测试与验证：在目标工作温度与电流条件下进行长期老化及热循环验证，特别是车规级应用需严格执行相关可靠性测试。
六、订购信息与资料获取
型号：SRN3012TA-2R2M，品牌：BOURNS，封装：SMD 3×3 mm。具体的电气特性曲线、推荐焊盘尺寸、回流曲线及详细机械图请参考 BOURNS 官方数据手册。实际设计前建议获取样品并在目标条件下做电磁与热性能验证。
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