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DOWO SMBJ6.8A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SMBJ6.8A
- Type
- DOWO
- Minimum package
- 3000
Technical parameters
- Electronic Component
- DOWO
- Electronic Component
- SMBJ6.8A
- Electronic Component
- 1
- Package
- SMB(DO-214AA)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.215g
- Electronic Component
- 1
- Electronic Component
- BM0231093687
- Operating Temperature
- 55℃~+150℃
- Voltage
- 10.5V
- Current(Ir)
- 1mA
- Voltage(VBR)
- 6.46V
- Electronic Component
- 3000
- Power(Ppp)
- 600W@10/1000us
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMBJ6.8A 产品概述
一、产品简介
SMBJ6.8A 是 DOWO（东沃）出品的一款单向瞬态电压抑制二极管（TVS），采用 SMB（DO-214AA）封装，专为电源线路和信号线的浪涌保护设计。该器件在 10/1000µs 测试条件下可承受峰值脉冲功率 600W，具有快速响应、低钳位电压和宽工作温度范围，适合工业级应用。
二、主要参数
- 类型：瞬态抑制二极管（TVS），单向
- 钳位电压（VC）：10.5V（典型）
- 击穿电压（Vbr）：6.46V（典型）
- 反向工作峰值电压（Vrwm）：5.8V
- 峰值脉冲功率（Ppp）：600W @ 10/1000µs
- 峰值脉冲电流（Ipp）：57.14A
- 反向静态电流（Ir）：1mA（在 Vrwm 条件下）
- 工作温度：-55℃ ~ +150℃
- 极性：单向
- 封装：SMB (DO-214AA)
- 品牌：DOWO（东沃）
三、关键特性
- 抗浪涌能力强：在 10/1000µs 波形下能吸收 600W 的能量，能有效抑制瞬态高能脉冲。
- 低钳位电压：典型钳位电压 10.5V，可在较低电压等级系统中保护下游器件免受过压冲击。
- 宽温区稳定性：-55℃ 到 +150℃ 的工作温度，适合严苛环境和工业应用。
- 响应快速：TVS 器件响应时间为纳秒级，可钳制快速上升的尖峰脉冲。
- 单向结构：适合直流电源及单极性信号线路保护。
四、典型应用场景
- DC 电源轨（如 5V、12V 保护）
- 通信接口及数据线防护（USB、串口等）
- 汽车电子模块、车载电源防浪涌
- 工业控制设备、电机驱动器输入保护
- 电源适配器和充电器的输出防护
五、封装与可靠性建议
SMB（DO-214AA）封装便于手工焊接和自动贴装，具有良好的热散能力。PCB 布局建议将 TVS 靠近受保护端口或接入点放置，走线尽量短且宽，以降低寄生电感和提高吸收效率。必要时配合熔断器或阻尼元件提高系统可靠性。
六、选型与使用注意
- 工作电压匹配：Vrwm（5.8V）应高于系统常态最大电压，保证正常工作时不会触发。
- 钳位电压限制：确认钳位电压 10.5V 在浪涌条件下不会损伤被保护器件。
- 漏电流考量：在低功耗或电池供电系统中，1mA 的反向漏电可能需要特别注意。
- 功率和能量吸收：600W@10/1000µs 为单次脉冲能力，频繁或更长波形需考虑热耗散与降额。
- 热管理：高频次冲击或长时间工作时需考虑封装散热和环境温度对性能的影响。
如需基于实际系统波形的更精确选型或并联/串联配置建议，可提供电源工作电压、最大允许钳位、电路拓扑和预期浪涌能量进行详细评估。
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