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KEMET T491B226M016AT
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- KEMET T491B226M016AT
- Type
- KEMET
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- KEMET
- Electronic Component
- T491B226M016AT
- Electronic Component
- 1
- Electronic Component
- 22uF
- Package
- CASE-B-3528-21(mm)
- Electronic Component
- Capacitor
- Electronic Component
- ±20%
- Electronic Component
- 0.106g
- Electronic Component
- 1
- Electronic Component
- BM0264817091
- Operating Temperature
- 55℃~+125℃
- Voltage
- 16V
- Electronic Component
- Electronic Component
- Electronic Component
- 2000
- Resistor(ESR)
- 2.2Ω@100kHz
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
T491B226M016AT 产品概述
一、产品基本参数
T491B226M016AT 为 KEMET（基美）系列钽电容，主要参数如下：容值 22 µF；额定电压 16 V；公差 ±20%；等效串联电阻（ESR）2.2 Ω @ 100 kHz；工作温度范围 -55 ℃～+125 ℃；封装标识 CASE-B-3528-21（片式钽电容典型体积，标称 3.5×2.8×2.1 mm 级别）。该型号属于固态钽电容，适合对体积、稳定性与长期可靠性有要求的电路。
二、特性与优点
- 容量密度高：在小型化封装中提供 22 µF 的电容值，便于空间受限的电源去耦与滤波设计。
- 低温漂与宽温区稳定性：在 -55 ℃ 至 +125 ℃ 工作范围内性能稳定，适用于工业与汽车电子等宽温场景（根据具体认证）。
- 明确的 ESR 指标：2.2 Ω（100 kHz）便于设计高频去耦与噪声抑制时评估阻抗响应。
- 制造商信誉：KEMET 为成熟电容制造商，可靠性及批次一致性较好。
三、典型应用
- 开关电源输出滤波与去耦；
- 低频/中频能量存储与瞬态响应补偿；
- 工业控制、通信设备和部分汽车电子（需按具体车规等级确认）；
- PCB 上的去耦与旁路电容。
四、封装与安装建议
- 为保证焊接与热循环可靠性，推荐按照 KEMET 的焊接曲线与回流温度规范进行工艺控制；
- 钽电容为极性元件，焊装时必须明确正负极并在 PCB 丝印上作标识；
- 建议在设计时留有适当间距以减小热应力，并避免在零件附近放置高温元件。
五、使用注意与可靠性建议
- 极性敏感：不得施加反向电压，反向或突发过压易导致击穿或失效甚至起火；
- 电压降额：为提高可靠性，建议实际工作电压按额定电压的 50%～80% 进行降额设计，尤其在高温或脉冲负载场合；
- 限制冲击电流与浪涌：钽电容对浪涌电流敏感，电路应限制启动/切换时的电流峰值；
- 储存条件：干燥、避光、防尘，避免长时间潮湿暴露，必要时使用密封包装并在规定时间内回流焊接。
六、选型与替代建议
- 若需要更低 ESR 或更高纹波承受能力，可考虑铝电解固态或陶瓷多层电容（MLCC）作为替代或并联使用以改善瞬态响应；
- 直替时选择相同性能等级（容值、公差、额定电压、ESR 与封装）或更优参数的型号，以确保可靠性与性能一致。
如需进一步提供尺寸图、耐久寿命曲线、焊接曲线或同系列其他电容型号对比，可告知我具体需求，我将补充更详尽的技术资料。
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