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CJ SMF36A
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ SMF36A
- Type
- CJ
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJ
- Electronic Component
- SMF36A
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.043g
- Electronic Component
- 1
- Electronic Component
- BM0228055745
- Operating Temperature
- 55℃~+150℃
- Voltage
- 58.1V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 44.2V
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMF36A 瞬态抑制二极管（TVS）产品概述
一、产品简介
SMF36A 是 CJ（江苏长电/长晶）出品的单向瞬态抑制二极管（TVS），采用 SOD-123FL 封装，专用于抑制瞬态过电压和浪涌能量，保护敏感电子器件免受雷击、开关瞬变或电磁脉冲侵害。其额定工作电压与浪涌抑制能力适合中低压直流系统和工业接口保护。
二、主要电气参数
- 钳位电压（Vc）：58.1 V（在规定脉冲条件下）
- 工作温度范围：-55 ℃ ~ +150 ℃
- 击穿电压（Vbr）：44.2 V
- 反向截止电压（Vrwm，额定工作电压）：36 V
- 峰值脉冲功率（Ppp）：200 W @ 10/1000 μs
- 极性：单向
- 峰值脉冲电流（Ipp）：3.4 A @ 10/1000 μs
- 反向电流（Ir）：1 μA（在 Vrwm 条件下）
- 类型：TVS（二极管瞬态抑制器）
- 封装：SOD-123FL
三、产品特点与优势
- 单向结构，正向导通清晰，适合直流电源线上对地保护；在正常工作状态下为反向偏置，泄漏电流极小（Ir≈1 μA），对系统静态功耗影响微小。
- 钳位电压 58.1 V，在遭受 10/1000 μs 浪涌时能有效限制过电压幅值，保护后级元件不被高压冲击破坏。
- 200 W 的脉冲能量能力（10/1000 μs）适用于工业控制、通信端口及电源接口的突发浪涌防护。
- 宽温工作范围（-55~+150 ℃）适应苛刻环境，可靠性高。
四、典型应用场景
- 24 V / 36 V 工业控制和PLC电源总线保护；
- 通信设备线路防雷防浪涌（基站、光端机接口等）；
- 电池管理、汽车电辅系统（非关键车载总线）及工业现场设备的输入端防护；
- 电源适配器开关瞬变抑制、接口端口（如电源线到地）的浪涌保护。
五、选型与使用建议
- 确保 Vrwm（36 V）高于系统正常工作电压峰值；若系统存在持续高于 Vrwm 的工作电压，应选用更高 Vrwm 的型号。
- 考虑到钳位电压为 58.1 V，在选型时需确认被保护电路在此电压下不会损坏，或在电路中增加串联限流元件或进一步级联保护。
- 浪涌能力以 10/1000 μs 波形给出，实际应用中需根据可能的脉冲能量和重复出现频率评估热应力与寿命；连续或多次高能脉冲会降低器件寿命。
- 注意封装的热阻和焊接工艺，SOD-123FL 适合回流焊，但要遵守制造商的焊接温度曲线以保证可靠性。
六、封装与可靠性注意事项
SOD-123FL 封装体积小、易于表面贴装，适合空间受限场合。长期高温或频繁大能量脉冲会增加漏电流并可能降低击穿稳定性，建议在极端环境下留有裕量并做必要的热设计与散热处理。
如需更详细的特性曲线（V-I、钳位随电流变化曲线）、封装尺寸或可靠性数据（高低温循环、瞬态重复能力），建议参考 CJ 官方数据手册或直接联系供应商获取原厂测试数据。
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