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LGE MA729
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- LGE MA729
- Type
- LGE
- Minimum package
- 3000 未知
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LGE
- Electronic Component
- MA729
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.03g
- Electronic Component
- 1
- Electronic Component
- BM0264342589
- Current
- 300mA
- Diode
- Electronic Component
- Current(Ir)
- 100uA
- (Vf)
- 550mV
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage Rating(Vr)
- 30V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MA729 产品概述
一、产品简介
MA729 为 LGE（鲁光）推出的独立式肖特基二极管，采用 SOD-323 小型封装，面向便携电源与高频整流场景。器件以低正向压降与快速恢复特性为主要卖点，适合对效率和空间有较高要求的消费类与工业电子设备。
二、主要参数
- 型号：MA729
- 二极管类型：肖特基（独立式）
- 正向压降 (Vf)：0.55 V（典型）
- 直流反向耐压 (Vr)：30 V
- 正常整流电流：300 mA（连续）
- 反向漏电流 (Ir)：100 μA（常温）
- 非重复峰值浪涌电流 (Ifsm)：1 A（峰值、单次）
- 封装：SOD-323
三、关键特性与优势
- 低正向压降：典型 Vf≈0.55 V，可有效降低整流损耗，提升电源效率，延长电池续航。
- 小封装高密度布局：SOD-323 体积小、适合表贴化生产，便于移动设备和空间受限的电路板布局。
- 合理的耐压/电流匹配：30 V 耐压满足多数 5V/12V 系统，300 mA 连续电流覆盖信号整流、保护与旁路应用需求。
- 良好冲击容限：1 A 峰值浪涌能力应对瞬态电流冲击，增强可靠性。
四、典型应用
- 电源整流与反向保护（USB、DC-DC 辅助整流）
- 模拟开关旁路二极管、钳位与钳位保护电路
- 功率管理与电池管理系统（BMS）中的低压降整流
- 高频快速开关应用中作为抑制和整流元件
五、封装与热管理
SOD-323 为小功率表贴封装，导热能力有限。推荐在 PCB 设计时：
- 增加焊盘与敷铜面积以改善散热；
- 在器件热源附近留出散热通道，避免长期大电流工作下温升过高；
- 注意反向漏电随温度上升而增加，关键电路应考虑温度特性后的余量设计。
六、选型与使用建议
- 若工作电流长期接近 300 mA 或工作环境温度较高，建议选用额定电流更高或具有更好热性能的器件；
- 关注反向漏电对系统待机耗电的影响，特殊低漏电要求场合应选用漏电更低的型号；
- 在焊接过程中参考 SOD-323 的回流焊工艺规范，避免过热影响器件性能与可靠性。
MA729 以其低 Vf、小尺寸与适中的电气性能，适合追求功率效率与板面空间优化的各类电子设备。
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