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| PartNumber | X0203NA 1BA2 | X0205MA 1BA2 | X0203NN 5AA4 |
| Description | SCRs 1.25 Amp 800 Volt | SCRs 1.25 Amp 600 Volt | SCRs 1.25A SENSITIVE GATE SCRs |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | SCRs | SCRs | Thyristors - DIACs, SIDACsThyristors - SCRs |
| RoHS | Y | Y | - |
| Series | X02 | X02 | X02 |
| Rated Repetitive Off State Voltage VDRM | 500 V | 600 V | 800 V |
| Off State Leakage Current @ VDRM IDRM | 5 uA | 5 uA | - |
| Vf Forward Voltage | 1.45 V | 1.45 V | - |
| Maximum Gate Peak Inverse Voltage | 8 V | 8 V | 8 V |
| Gate Trigger Voltage Vgt | 800 mV | 800 mV | - |
| Gate Trigger Current Igt | 0.2 mA | 50 uA | - |
| Holding Current Ih Max | 5 mA | 5 mA | 5 mA |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Mounting Style | Through Hole | Through Hole | SMD/SMT |
| Package / Case | TO-92 | TO-92-3 | - |
| Current Rating | 1.25 A | 1.25 A | - |
| Type | 1.25 A SCRs | 1.25 A SCRs | - |
| Brand | STMicroelectronics | STMicroelectronics | - |
| Non Repetitive On State Current | 25 A | 25 A | 25 A |
| Product Type | SCRs | SCRs | - |
| Factory Pack Quantity | 2500 | 2500 | - |
| Subcategory | Thyristors | Thyristors | - |
| Unit Weight | 0.016000 oz | 0.016000 oz | 0.006632 oz |
| On State RMS Current It RMS | - | 1.25 A | - |
| Packaging | - | Bulk | Tape & Reel (TR) |
| Package Case | - | - | TO-261-4, TO-261AA |
| Operating Temperature | - | - | -40°C ~ 125°C |
| Mounting Type | - | - | Surface Mount |
| Supplier Device Package | - | - | SOT-223 |
| Current Hold Ih Max | - | - | 5mA |
| Voltage Off State | - | - | 800V |
| Voltage Gate Trigger Vgt Max | - | - | 800mV |
| Current Gate Trigger Igt Max | - | - | 200μA |
| Voltage On State Vtm Max | - | - | 1.45V |
| Current On State It AV Max | - | - | 800mA |
| Current On State It RMS Max | - | - | 1.25A |
| Current Off State Max | - | - | 5μA |
| Current Non Rep# Surge 50 60Hz Itsm | - | - | 22.5A, 25A |
| SCR Type | - | - | Sensitive Gate |
| Gate Trigger Voltage Vgt | - | - | 0.8 V |
| Gate Trigger Current Igt | - | - | 0.2 mA |
| Off State Leakage Current VDRM IDRM | - | - | 0.005 mA |
| Vf Forward Voltage | - | - | 1.5 V |
