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cjiang FXL1040-330-M FXL1040
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FXL1040-330-M
- Type
- CJIANG
- Minimum package
- 500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FXL1040-330-M
- Electronic Component
- 1
- Package
- SMD,11.5x10mm
- Type
- Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 2.954g
- Inductor
- 33uH
- Electronic Component
- 1
- Electronic Component
- BM0231116112
- Current
- 4.4A
- Resistor(DCR)
- 92mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 500
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FXL1040-330-M 产品概述
一、产品简介
FXL1040-330-M 是长江微电（cjiang）推出的一款一体成型功率电感，额定特性面向中大电流场合。其标称电感值为 33 μH，公差 ±20%，封装为 SMD 封装，外形尺寸约 11.5 × 10.0 mm。该器件适合用在开关电源滤波、功率变换和EMI抑制等需要较大电感量与中等电流能力的场合。
二、主要规格（关键参数）
- 型号：FXL1040-330-M
- 品牌：cjiang（长江微电）
- 电感值：33 μH ±20%
- 额定电流（Irated）：4.4 A
- 饱和电流（Isat）：5 A（磁通饱和时电感显著下降）
- 直流电阻（DCR）：约 92 mΩ
- 封装形式：SMD，一体成型（尺寸 11.5 × 10.0 mm）
三、关键特性与优势
- 大电感量：33 μH 适用于较低开关频率或需要较大储能的 L 元件用途。
- 较高电流能力：额定电流 4.4 A，饱和截止在 5 A 左右，适合中等功率的降压/升压转换器。
- 一体成型结构：提高机械强度与长期稳定性，便于自动贴装与回流焊接。
- 封装与可加工性：SMD 化便于高速贴片生产与紧凑 PCB 布局。
四、使用时的电气与热管理要点
- 热耗与功率损耗：基于 DCR ≈ 0.092 Ω，按 I^2·R 计算，在额定电流 4.4 A 时损耗约 1.78 W，表明在接近额定电流长期工作时会有明显发热，应在系统设计中考虑散热与电流裕量。
- 饱和注意：当工作电流接近或超过 Isat（≈5 A）时，电感值会显著下降，可能导致开关电源回路工作不稳定或电流骤升。建议在设计时留有充分的电流余量（常见做法为额定电流的 70%–80% 以内做连续工况）。
- 电感公差 ±20%：在对输出纹波与频率敏感的设计中需预留容差带，必要时通过仿真验证最差情形。
五、典型应用
- 降压/升压 DC-DC 转换器（尤其低频或大储能场合）
- 电池管理与电源滤波（手机、电动工具、便携设备的中功率段）
- 功率模块与输入滤波、电磁兼容（EMI）滤波器
六、PCB 布局与焊接建议
- 高电流走线要尽量短、宽，减少寄生电感与电阻。
- 电感与开关器件应尽量靠近，减小回流环路面积。
- 如功率损耗较高，考虑在器件下方或周围设置散热铜箔与过孔，利于散热。
- 遵循厂商提供的回流焊温度曲线与焊盘尺寸建议，避免超温或不良焊接。
七、选型与可靠性建议
在选用 FXL1040-330-M 时，务必参考完整的厂商 Datasheet，确认测试条件（例如 DCR 的测量温度、Irated 的定义、温升限制等）。对于长时间高功率工作场合，应评估温升、磁饱和裕度以及电感值随温度或直流偏置的变化，必要时留安全裕量或选型更大电流/更低 DCR 的型号。
如需进一步资料（完整数据手册、典型波形、建议 PCB 封装尺寸或样品测试数据），建议联系长江微电或其授权代理获取官方文档和支持。
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