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RUILON SMAJ24A
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON SMAJ24A
- Type
- RUILON
- Minimum package
- 5000
Technical parameters
- Electronic Component
- RUILON
- Electronic Component
- SMAJ24A
- Electronic Component
- 1
- Package
- DO-214AC(SMA)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.1g
- Electronic Component
- 1
- Electronic Component
- BM0227699987
- Operating Temperature
- 55℃~+150℃
- Voltage
- 38.9V
- Electronic Component
- IEC 61000-4-4；IEC 61000-4-2
- Current(Ir)
- 1uA
- Voltage(VBR)
- 30.7V
- Electronic Component
- 5000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMAJ24A 产品概述
一、产品简介
SMAJ24A 是 RUILON(瑞隆源) 出品的一款单向瞬态抑制二极管（TVS），封装为 DO-214AC (SMA)，专为 24V 类电源与信号线路提供浪涌和静电放电保护。器件在极端温度下仍能稳定工作，适合工业控制、通信设备、仪表和车规周边电路的瞬态防护需求。
二、主要性能参数
- 钳位电压（Vc）：38.9 V（在指定测试条件下）
- 击穿电压（Vbr）：30.7 V
- 反向截止电压（Vrwm）：24 V（推荐反向工作电压）
- 峰值脉冲功率（Ppp）：400 W @ 10/1000 μs 波形
- 峰值脉冲电流（Ipp）：10.3 A @ 10/1000 μs
- 反向电流（Ir）：1 μA（常温下）
- 极性：单向（适用于正向钳位场合）
- 工作温度范围：-55 ℃ ～ +150 ℃
- 防护等级：符合 IEC 61000-4-4（电快速脉冲群）与 IEC 61000-4-2（静电放电）规范
三、封装与可靠性
SMA（DO-214AC）封装便于回流焊接与自动化贴装，具有良好的热/机械性能。宽温工作范围及低漏电特性保证在高温或长时间待机状态下的可靠性。符合 IEC 标准表明器件在 ESD 与 EFT 耐受能力上满足常见工业、商业环境的要求。
四、典型应用场景
- 24V 电源总线与分配线路浪涌保护
- 工业控制器、PLC 的接口保护
- 通信与基站设备的辅助电源防护
- 仪器仪表、安防设备输入端防突波与静电
- 车载非关键子系统（需注意车规认证要求）
五、使用与布板建议
- 尽量将 TVS 器件靠近受保护端口或接头放置，缩短连接走线以降低感抗和寄生电感。
- 为获得最佳散热与抗浪涌性能，保持器件底部及焊盘良好热路径，必要时在 PCB 下方增加散热铜箔。
- 单向器件在保护正向过压时效果最佳，若需双向保护请选用双向型号或额外电路。
- 在高能脉冲环境中，可配合熔断器、PTC 或限流电阻以分散能量，延长 TVS 寿命。
六、选型要点与注意事项
- 确认系统最大持续工作电压不超过 Vrwm（24 V），否则会导致频繁触发或损坏。
- 根据可能出现的浪涌能量与波形选择合适的 Ppp 与 Ipp 余量，必要时并联多只或采用更大功率器件。
- 应用在汽车或特殊认证场合时，核对是否需车规级认证或额外可靠性测试。
- 实物选型时参考完整数据手册以获取详尽的钳位曲线、功率耗散特性及焊接温度曲线。
SMAJ24A 以其稳定的钳位性能、较高的脉冲能量承受能力和宽温范围，适合对 24V 线路进行高效、成本可控的瞬态保护。购买与设计集成时，建议结合系统浪涌分析与 PCB 布局优化，以确保长期可靠运行。
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