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MDD SL1045
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MDD SL1045
- Type
- TO-277
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MDD
- Electronic Component
- SL1045
- Electronic Component
- 1
- Package
- TO-277
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.038g
- Electronic Component
- 1
- Electronic Component
- BM0227604710
- Current
- 10A
- Diode
- 1
- Current(Ir)
- 300uA@45V
- (Vf)
- 450mV@10A
- Electronic Component
- 55℃~+150℃
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SL1045 产品概述
一、产品概述
SL1045 为 MDD 公司出品的一款中低压大电流肖特基整流二极管，特点是正向压降低、开关速度快、耐浪涌能力强，适合12V/24V等低压电源环境以及需要高效整流和抑制反向恢复的场合。器件采用 TO-277 封装，便于热量散出和大电流连接，工作结温范围宽 (-55℃ ～ +150℃)，可在较恶劣环境下长期工作。
二、主要特性
- 典型正向压降 Vf ≈ 0.45V @ IF = 10A（实际使用中以厂方曲线为准）
- 额定整流电流 IF = 10A（连续）
- 非重复峰值浪涌电流 Ifsm = 175A（一次性冲击能力）
- 直流反向耐压 Vr = 45V
- 反向漏电流 Ir = 300µA @ Vr = 45V
- 工作结温范围 Tj = -55℃ ～ +150℃
- 品牌：MDD；封装：TO-277
三、电气性能说明
SL1045 在10A 工作点的正向压降约 0.45V，意味着二极管本身在满载时的功耗约为 P = Vf × IF ≈ 4.5W，实际结温取决于散热条件与封装热阻。Ifsm = 175A 用于短时浪涌（例如上电突入、电机启动或整流器冲击电流），不建议反复或长期以此等级工作。反向漏电流在高电压或高温下会显著上升，设计时应留有裕量。
四、封装与热管理建议
TO-277 封装适合需要良好热路径的应用。由于满载时二极管有数瓦功耗，建议配合散热片或良好铜箔散热设计，并保证器件与散热体接触良好。PCB 布局应考虑宽铜道、充分过孔和靠近热源的散热区域。若系统长期在高温环境工作，应进行降额设计并关注结温上升。
五、典型应用
- 开关电源与整流桥单元
- DC-DC 转换器、降压模块的输出整流
- 汽车电子 12V/24V 保护与整流（注意环境温度和浪涌规范）
- 电池保护与反接保护电路
- 马达驱动、继电器吸收能量回收场合的浪涌吸收
六、选型与使用注意事项
- 在选型时确认系统最大工作电压小于 45V，留有安全裕量；高于此电压需选更高 Vr 的器件。
- 考虑反向漏电流对休眠或待机电流的影响，必要时选用漏电更低的型号或增加并联/串联方案。
- Ifsm 为非重复峰值，若系统有频繁冲击应评估热冲击与循环影响。
- 实际应用请参考 MDD 官方完整数据手册（曲线图、热阻、封装尺寸与焊接工艺）以完成热设计和可靠性评估。
总结：SL1045 以低正向压降和较强浪涌能力，在中低压高电流整流领域具有竞争力。合理的散热与降额设计可以确保其在复杂工况下的可靠运行。
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