Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Brightking SA18CA/B SA18CA
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Brightking SA18CA / B
- Type
- BRIGHTKING
- Minimum package
- 2000 盒
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Brightking
- Electronic Component
- SA18CA/B
- Electronic Component
- 1
- Package
- Through-hole
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.43g
- Electronic Component
- 1
- Electronic Component
- BM0257711569
- Operating Temperature
- 55℃~+150℃
- Voltage
- 29.2V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 20V
- 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.
SA18CA / SA18CB（Brightking 台湾君耀）产品概述
一、产品简介
SA18CA/B 为双向瞬态抑制二极管（TVS），采用插件（穿孔）封装，专为静电放电（ESD）和浪涌（Surge）保护设计。额定反向截止电压（Vrwm）18V，击穿电压约20V，钳位电压29.2V，在10/1000µs波形下峰值脉冲功率可达500W，峰值脉冲电流(Ipp)为17.5A，适合对中低电压电源线或信号线进行有效保护。
二、主要电气参数（关键值）
- 极性：双向（Bidirectional）
- 反向截止电压 Vrwm：18V
- 击穿电压 Vbr：20V
- 钳位电压 Vcl：29.2V
- 峰值脉冲电流 Ipp：17.5A（10/1000µs）
- 峰值脉冲功率 Ppp：500W（10/1000µs）
- 反向漏电流 Ir：1µA（常温）
- 工作温度范围：-55℃ 至 +150℃
三、主要特性与优势
- 双向结构可在正/负极性浪涌下提供对称保护，适用于交流或可反向电压场合。
- 高脉冲功率能力（500W）对工业浪涌和雷击感应具有良好抑制能力。
- 低漏电流（1µA）在待机或精密测量电路中可减少干扰与功耗。
- 宽温度范围适合严苛环境及工业级应用。
四、典型应用场景
适用于电源输入保护、通信接口、防护板卡、继电器线圈保护、汽车电子辅助电路（符合温度与浪涌要求的场合）、工业控制设备与消费电子的防护设计。
五、使用与选型建议
- 若电路工作电压幅值接近或低于18V，SA18CA/B 是合适选择；若工作电压更高，应选用更高 Vrwm 的型号。
- 钳位电压29.2V为最大钳位时的参考值，需确认被保护器件能承受该峰值电压。
- 考虑PCB走线与接地布线，尽量缩短保护器件到受保护节点的路径，减小串联电感，提高抑制效果。
- 插件封装便于维修与替换，但在高频或空间受限场合优先考虑贴片产品。
六、可靠性与注意事项
避免长期在接近额定脉冲能力下工作，以免加速热应力与疲劳。焊接时遵守制造商的温度曲线，避免过热影响器件特性。为实现最佳保护效果，建议与合适的熔断器或限流元件配合使用。
如需进一步的电气特性曲线、封装尺寸或样品购买信息，可联系Brightking（台湾君耀）或其授权代理商获取详细规格书与支持。
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