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AVX TAJC226M020RNJ
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- AVX TAJC226M020RNJ
- Type
- AVX
- Minimum package
- 500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- AVX
- Electronic Component
- TAJC226M020RNJ
- Electronic Component
- 1
- Electronic Component
- 22uF
- Package
- SMD
- Electronic Component
- Capacitor
- Electronic Component
- ±20%
- Electronic Component
- 0.314g
- Electronic Component
- 1
- Electronic Component
- BM0264777687
- Operating Temperature
- 55℃~+125℃
- Voltage
- 20V
- Electronic Component
- Electronic Component
- Electronic Component
- 500
- Resistor(ESR)
- 1.6Ω
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
TAJC226M020RNJ 产品概述
一、简介
TAJC226M020RNJ 为 AVX 系列钽电容器，标称电容量 22µF，容差 ±20%，额定直流电压 20V，封装为表面贴装型 2312。钽电容以体积电容密度高、温度稳定性好著称，适合对体积和稳定性有要求的电源去耦与滤波场合。
二、主要参数
- 容值：22µF ±20%
- 额定电压：20V DC
- 等效串联电阻（ESR）：1.6Ω
- 工作温度：-55℃ ~ +125℃
- 封装：SMD 2312（2.3 × 1.2 mm 级）
- 极性：有极（钽电容为极性器件），须按极性焊接
三、性能与特性
- 高容值/体积比：在同等体积下比陶瓷或铝电解拥有更大的静态电容量。
- 温度与频率特性稳定：在宽温区间内保持相对稳定的电容量，适合电源滤波与低频去耦。
- ESR 较大（1.6Ω）：对高频旁路或大纹波电流场合，热耗和压降较为明显，应评估实际纹波功率损耗。
- 极性要求：必须连接正确极性，反向偏置会导致失效或起火风险。
- 机械与焊接适应性好：适用于常规回流焊工艺，但应注意存储和焊接曲线避免过热或长期潮湿暴露。
四、典型应用场景
- 电源输入/输出滤波与去耦（中低频段）
- 模拟电路的能量存储和稳定化
- 工业控制、电信设备及消费电子中对稳定电容需求的局部滤波
在需承受大纹波或高脉冲电流的场合，应结合 ESR 与纹波电流评估热升并考虑并联低 ESR 元件或串联保护元件。
五、封装与安装建议
- 布局：尽量靠近被旁路的电源引脚以减小寄生电感、缩短回路路径。
- 焊接：遵循厂商回流焊温度曲线，避免多次长时间暴露于高温。
- 机械应力：贴片后避免在封装上直接受力或用力折弯 PCB。
- 并联策略：若需降低等效 ESR 或承受更大纹波，可并联多个电容（可与低 ESR 陶瓷并联以覆盖更宽频率范围）。
六、可靠性与注意事项
- 电压降额：为提高使用寿命与可靠性，建议在关键应用中对额定电压进行适当降额（常见做法为 50–80% 视可靠度要求而定），并避免频繁大幅度电压冲击。
- 开机涌流与反向电压：钽电容对浪涌电流和反向偏置非常敏感，需要在设计中加入限流或保护措施。
- 环境与老化：长期在高温高湿环境下，电容性能可能随时间变化，应按应用需求安排老化验证。
- 选型校验：在最终产品中使用前，建议基于实际工作电压、纹波电流与温度做热仿真与寿命测试，确保 ESR 导致的发热在安全范围内。
总结：TAJC226M020RNJ 适合对体积和中低频电容性能有要求的电源滤波与去耦场合。使用时需注意极性、ESR 对纹波与发热的影响，并在可靠性要求高的设计中采取电压降额和必要的保护措施。
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