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CJ SP1545L
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ SP1545L
- Type
- CJ
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJ
- Electronic Component
- SP1545L
- Electronic Component
- 1
- Package
- TO-277
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.133g
- Electronic Component
- 1
- Electronic Component
- BM0228789747
- Current
- 15A
- Diode
- Electronic Component
- Current(Ir)
- 60uA@45V
- (Vf)
- 480mV@15A
- Electronic Component
- 55℃~+150℃
- Electronic Component
- Electronic Component
- Electronic Component
- 5000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SP1545L 产品概述 — 肖特基二极管（CJ，TO-277）
一、产品简介
SP1545L 为江苏长电（CJ）出品的一款独立式肖特基整流二极管，封装为 TO-277。该器件在高电流低压降场合表现优异，典型正向压降 Vf = 480 mV（在 15 A 条件下），直流反向耐压 Vr = 45 V，整流电流（平均）15 A，反向电流 Ir = 60 μA（于 45 V 时）。工作结温范围宽（-55 ℃ 至 +150 ℃），适合工业级电源和高可靠性应用。
二、主要电气参数
- 型号：SP1545L
- 正向压降：480 mV @ 15 A（典型）
- 最大反向耐压：45 V
- 平均整流电流：15 A
- 反向漏电流：60 μA @ 45 V
- 工作结温：-55 ℃ ~ +150 ℃
- 封装：TO-277（独立式散热设计）
三、特性与优势
- 低正向压降：在大电流条件下可显著降低导通损耗，提高效率，特别适合降压转换器和整流场合。
- 低反向恢复：肖特基结构天然无或极小反向恢复时间，有利于高频开关电源减少开关损耗和电磁干扰。
- 宽温度范围与高电流能力：-55~+150 ℃ 的结温范围配合 15 A 的整流能力，适应工业级、车载及高温环境。
- 单独封装（TO-277）：便于散热处理与机械固定，可直接搭配散热器或机箱接地面。
四、典型应用
- 开关电源（降压/升压）整流与续流二极管
- 电池充电管理与反接保护
- 车载电子（起动/充电系统）及工业电源模块
- 高频整流、二极管并联分流与功率密集场景
五、设计与散热注意事项
- 封装为 TO-277，需保证良好热接触到散热器或铜箔，注意热阻 Rt j-case 和 PCB 热扩散设计。
- 在 15 A 工作点应考虑热沉与空气对流，必要时留裕降额以确保长期可靠性。
- 并联使用需注意电流均分，匹配阻抗或增加热耦合以防单只过载。
- 反向漏流随温度上升呈指数增长，热管理不当会导致静态损耗增加。
六、可靠性与使用建议
- 建议按厂家焊接规范进行回流或波峰焊，控制峰值温度与时长避免封装应力。
- 存储与使用环境避免潮湿与腐蚀性气体，长时间储存前做好防潮处理。
- 在关键应用建议通过老化测试与热循环验证参数稳定性。
SP1545L 以其低 Vf、高电流与宽温性能，在需要高效率和可靠性的电源系统中具有明显优势。选择时请结合实际热设计与过载裕量，确保长期稳定运行。若需更详细的电气特性曲线或封装机械图，可参考厂家规格书或联系供应商获取完整资料。
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