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GOODWORK SMAJ24A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- GOODWORK SMAJ24A
- Type
- GOODWORK
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- GOODWORK
- Electronic Component
- SMAJ24A
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.099g
- Electronic Component
- 1
- Electronic Component
- BM0229305752
- Operating Temperature
- 55℃~+150℃
- Voltage
- 38.9V
- Current(Ir)
- 5uA
- Voltage(VBR)
- 26.7V
- 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.
SMAJ24A 产品概述
一、产品简介
SMAJ24A 是 GOODWORK（固得沃克）推出的一款单向 TVS（二极管瞬态抑制器），采用 SMA（DO-214AC）封装，专为保护 24V 级电源线和信号线免受瞬态过压、雷击和电磁脉冲冲击而设计。器件在宽温度范围内（-55 ℃ 至 +150 ℃ @Tj）工作，适合工业、通信和汽车等苛刻环境。
二、主要电气参数
- 极性：单向（适用于直流/单向脉冲抑制）
- 反向截止电压 Vrwm：24 V（稳态工作电压建议不超过该值）
- 击穿电压 Vbr：26.7 V（典型）
- 钳位电压 Vc：38.9 V（在标称峰值脉冲电流下）
- 峰值脉冲电流 Ipp：10.3 A（单次脉冲能力）
- 峰值脉冲功率 Ppp：400 W（每脉冲瞬时峰值能力，按标准脉冲测试条件）
- 反向电流 Ir：5 μA（在 Vrwm 条件下，泄漏小，降低对电路的影响）
- 工作温度范围：-55 ℃ ~ +150 ℃（结温范围内可靠运行）
三、主要特性与优势
- 强抗冲击能力：400W 峰值功率与 10.3A 峰值脉冲电流，可有效吸收短时高能脉冲。
- 低钳位：在冲击时将电压钳制到约 38.9V，减少对后级元件的过压应力。
- 低泄漏：5 μA 的反向电流保证在正常工作时对供电系统无明显负载。
- 紧凑封装：SMA（DO-214AC）体积小、安装简便，适合表面贴装生产线。
四、典型应用场景
- 24V 工业控制与自动化设备的电源与信号线防护
- 汽车电子（非关键安全回路）瞬态抑制（需按车规等级选型验证）
- 通信设备、电源模块、逆变器输入端的浪涌与雷击保护
- 接口保护（例如 CAN 总线、点火线圈等需额外验证场景）
五、设计与布局建议
- 尽量将 TVS 器件放置在被保护端口或电源入口的靠近处，缩短信号/电源回路的走线长度以减小寄生感抗。
- 对于高能量脉冲，配合熔断器、PTC 或串联电阻使用，可避免 TVS 自身或系统受到重复过载损伤。
- 注意散热：SMA 封装的热阻较大，在连续或频繁冲击场合需考虑 PCB 铜箔扩散、热沉或多孔过孔散热路径。
- 验证钳位电压与下游器件耐压是否匹配，确保在典型冲击情况下后级器件安全。
六、可靠性与选型提示
- 本器件适用于单向保护场合，若需双向保护应选择双向型号或并联双向 TVS。
- Ppp 与 Ipp 为瞬态峰值能力，若应用中存在多次重复脉冲或长时间高能量冲击，应按频率与能量进行降额设计或选择更高能量等级的器件。
- 在关键汽车或航空等高可靠性应用中，建议参照具体标准（如 ISO、AEC-Q）进行筛选与可靠性验证。
SMAJ24A 以其良好的瞬态吸收能力、低泄漏和标准化 SMA 封装，是 24V 级系统实现成本可控、布局友好型瞬态保护的常用选择。
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