TL431BCDBZR vs TL431A 对比
详细并排对比 TL431BCDBZR 出自 Texas Instruments 和 TL431A 出自 Texas Instruments。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
规格对比
| 参数 | TL431BCDBZR | TL431A |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 分类 | Voltage Regulators | Voltage Regulators |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $0.04 | $0.08 |
| Reference Voltage (VREF) | 2.495 V | — |
| Initial Reference Tolerance | ±0.5% (B grade, at 25°C) | — |
| Adjustable Output Voltage Range | 2.495 V to 36 V | — |
| Maximum Cathode Voltage | 36 V | — |
| Cathode Current Range | 1 mA to 100 mA | — |
| Typical Output Impedance | 0.2 Ω | — |
| Dynamic Impedance (typ) | 0.05 Ω (1 mA to 100 mA) | — |
| Temperature Coefficient (typ) | Approximately 92 ppm/°C | — |
| Minimum Cathode Current for Regulation | 1 mA (typ) | 1 mA |
| 工作温度范围 | 0°C to +70°C (C grade) | — |
| 封装 | SOT-23-3 (DBZ) | SOT-23 (DBZ), 3-pin |
| 安装类型 | Surface Mount | Surface Mount |
| Architecture | Shunt regulator with bandgap error amplifier | — |
| RoHS 状态 | Compliant | Compliant |
| Family Grades Available | 0.5% (B), 1% (A), 2% (standard) | — |
| 生命周期状态 | Active | — |
| 拓扑 | — | Adjustable shunt regulator / programmable reference |
| Reference Voltage (Vref) | — | 2.495 V typical |
| Initial Tolerance (25C) | — | 1% (A grade) |
| Adjustable Output Range | — | 2.5 V to 36 V |
| Maximum Cathode Current | — | 100 mA |
| Output Impedance | — | 0.2 ohm typical |
| Maximum Input Voltage (cathode) | — | 36 V |
| Turn-on Characteristics | — | Sharp, active output circuitry |
| Temperature Stability | — | Specified over automotive, commercial, and military temperature ranges |
| Number of Terminals | — | 3 |
| Replacement For | — | Zener diodes with improved performance |
| Available Grades | — | B (0.5%), A (1%), standard (2%) |
| Companion Device | — | TL432 (same specs, different pinout on DBV/DBZ/PK) |