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Jingdao Microelectronics SMBJ16A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Electronic SMBJ16A
- Type
- Jingdao Microelectronics
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic
- Electronic Component
- SMBJ16A
- Electronic Component
- 1
- Package
- SMB
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.167g
- Electronic Component
- 1
- Cj- Capacitor
- 390pF
- Electronic Component
- BM0227664052
- Operating Temperature
- 65℃~+150℃
- Voltage
- 26V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 19.7V
- 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.
SMBJ16A 产品概述 — 晶导微电子
一、产品简介
SMBJ16A（LP）是晶导微电子推出的一款表面贴装型瞬态抑制二极管（TVS），封装为SMB（DO-214AA）。该器件为单向TVS，设计用于在瞬态过电压发生时快速夹紧电压，保护下游电路免受浪涌和静电放电（ESD）等冲击。
二、主要电气参数
- 钳位电压（Vc）: 26V（在指定脉冲条件下）
- 工作温度范围: -65℃ 至 +150℃
- 击穿电压（Vbr）: 19.7V（典型）
- 反向截止电压（Vrwm，稳压工作电压）: 16V
- 峰值脉冲功率（Ppp）: 600W @ 10/1000µs 波形
- 峰值脉冲电流（Ipp）: 23.1A（与600W对应）
- 结电容（Cj）: 390pF（典型，0V偏置，1MHz）
- 反向漏电流（Ir）: 1µA（在 Vrwm 条件下典型）
- 类型: 单向 TVS，封装 SMB
（注：600W 与 23.1A 对应的钳位电压约为 600W/23.1A ≈ 26V，数据一致。）
三、典型应用场景
- 电源总线和分配线的瞬态浪涌保护（DC 12V/24V 系统）
- 工业控制与嵌入式设备的防雷击、浪涌保护
- 汽车电子低速电源保护（需结合汽车级认证评估）
- 通信设备和基站电源防护（注意结电容对高速信号的影响）
- 消费电子、仪器仪表前端保护
四、设计与选型要点
- Vrwm（16V）应高于系统正常工作电压但低于被保护元件能承受的最大电压；对于12V系统该器件为常见选择。
- 高结电容（390pF）使其更适合电源线或低速信号线，若用于高速差分信号会引入显著负载与失真，应选低容型TVS。
- 峰值功率600W（10/1000µs）适合中等能量浪涌场景，对于更高能量的冲击应并联多个TVS或采用更高能量等级器件。
- 1µA的低漏电适合待机功耗敏感应用，但在高温或偏压条件下需参考datasheet的最大值表。
五、布局与可靠性建议
- TVS应尽量靠近需保护的输入端或连接器放置，缩短引线以减小寄生电感，提高钳位效率。
- SMB封装通过PCB铜箔散热，应保证焊盘与散热区域良好连接以利热量释放。
- 焊接与回流需遵循器件的温度极限（参考供应商回流曲线），避免长期暴露于高温环境超出+150℃上限。
- 在有较大连续冲击或高温环境时，进行热-机械疲劳和浪涌寿命评估。
六、结论
SMBJ16A（晶导微电子，SMB封装）是一款面向电源及中低速信号保护的可靠TVS二极管，具有低泄漏、高浪涌能量承受能力和宽温度范围，适合工业、通信与消费类电源防护场景。选型时需综合考虑工作电压、结电容对信号完整性的影响以及实际浪涌能量需求，详细参数与极限请参阅厂商完整datasheet。
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