NSI50350AST3G vs PSSI2021SAY 对比
详细并排对比 NSI50350AST3G 出自 onsemi 和 PSSI2021SAY 出自 Nexperia。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 | NSI50350AST3G | PSSI2021SAY |
|---|---|---|
| 品牌 | onsemi | Nexperia |
| 分类 | LED Drivers | Transistors |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $0.31 | $0.15 |
| Regulated Current | 350 mA ±10% | — |
| Maximum Anode-Cathode Voltage | 50 V | — |
| Maximum Power Dissipation | 5.8 W | — |
| Technology | Self-Biased Transistor (SBT) | — |
| Package Type | SMC (2-pin) | — |
| Configuration | High-Side or Low-Side | Single one-chip solution (transistor + resistor + 2 diodes) |
| 工作温度范围 | -55C to +175C | — |
| Temperature Coefficient | Negative (thermal self-protection) | — |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | [DATA_NEEDED: MSL level] | — |
| RoHS 状态 | Compliant | Compliant |
| Lead-Free | Yes | — |
| REACH Status | Compliant | — |
| Automotive Grade | Standard (NSV variant is AEC-Q100) | — |
| 引脚数量 | 2 | — |
| Manufacturer | — | Nexperia |
| Part Number | — | PSSI2021SAY |
| Part Status | — | Active |
| 功能 | — | Constant Current Source |
| 晶体管类型 | — | PNP with integrated bias resistor and two diodes |
| Output Current Range | — | 15 uA to 50 mA (set by external resistor) |
| 最大输出电流 | — | 50 mA |
| 封装 | — | SOT-353 (SC-88A) / UMT5 |
| 引脚数 | — | 5 |
| 工作温度 | — | -40C to +125C |
| 拓扑 | — | High-side constant current source |
| Qualification | — | AEC-Q101 (automotive grade) |
| External Component | — | Resistor between pins 4 and 5 to set I_OUT |