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CJ S3M
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ S3M
- Type
- CJ
- Minimum package
- 3000
Technical parameters
- Electronic Component
- CJ
- Electronic Component
- S3M
- Electronic Component
- 1
- Package
- SMBG
- Electronic Component
- General Purpose Diode
- Electronic Component
- 0.21g
- Electronic Component
- 1
- Electronic Component
- BM0258633706
- Current
- 3A
- Diode
- Electronic Component
- Current(Ir)
- 5uA@1kV
- (Vf)
- 1.1V@3A
- Electronic Component
- 55℃~+150℃
- Electronic Component
- 3000
- Voltage Rating(Vr)
- 1kV
- Surge Current (Ifsm)
- 100A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
S3M 通用二极管（CJ，SMBG）产品概述
一、产品简介
S3M 为一款独立式高压整流二极管，由江苏长电（CJ/长晶）提供，SMBG 封装，适用于中高压整流与旁路保护。该器件设计用于连续整流工作，兼顾较低的正向压降与高耐压特性，适配工业与消费类电源系统的可靠性需求。
二、主要规格
- 正向压降（Vf）：1.15V @ IF = 3A
- 直流反向耐压（Vr）：1000V
- 正向整流电流（IF(AV)）：3A
- 反向漏电流（Ir）：10μA @ 1000V
- 非重复峰值浪涌电流（Ifsm）：100A
- 工作结温范围：-55℃ ~ +150℃
- 封装：SMBG（单只独立器件）
三、关键特性与优势
- 高耐压：1000V 反向耐压满足高压整流与逆变输入侧保护要求。
- 良好浪涌承受能力：100A 峰值浪涌电流可处理开机或短时冲击电流。
- 低漏电：在高压下反向电流控制在微安级，利于高压回路的静态损耗控制。
- 宽温度范围：-55℃ 至 150℃ 的结温适应恶劣环境与工业级应用。
四、典型应用
- 开关电源（SMPS）与桥式整流
- 工业电源与逆变器输入整流
- 充电器与适配器高压端保护
- 电机驱动及伺服电源的续流/自由轮整流
- 高压测量与控制电路中的防反接与钳位
五、封装与热管理
SMBG 封装便于波峰与回流焊接，体积适中，易于手工和自动化贴装。设计 PCB 时应考虑热阻与散热路径：在二极管下方和周围增加铜箔面积、使用过孔连接至散热层以降低结温；在连续 3A 工作或频繁浪涌场景下建议进行热仿真与实际测温验证并做适当降额。
六、可靠性与使用建议
- 焊接：按制造商推荐的焊接工艺与回流曲线执行，避免超过器件允许的瞬时结温。
- 降额使用：长时间高温或持续接近额定电流时建议适当降额以延长寿命。
- 存储与防护：防潮包装保存，避免机械应力与腐蚀性环境。
- 选型：若需更低正向压降或更高整流电流，可考虑并联或选择更低 Vf/更大 IF 的器件，但并联需注意电流均分与热失控问题。
结语：S3M（CJ，SMBG）以其 1.15V@3A 的正向特性和 1000V 的高耐压，在中高压整流与工业电源领域提供了平衡的性能与可靠性，是常见的通用整流选择。若需详细的频率特性、脉冲散热阻抗（RthJP）或封装尺寸图，请参见厂家数据手册或联系供应商。
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