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| PartNumber | U2741B-NFBG3Y | U2741B-NFBY |
| Description | RF Receiver ASK/FSK Remote Control 433 MHz | RF Transmitter ASK/FSK Rem. Ctrl. Transm. 433 MHz |
| Manufacturer | Microchip | Microchip |
| Product Category | RF Receiver | RF Transmitter |
| Type | Transmitter | - |
| Operating Frequency | 450 MHz | - |
| Minimum Operating Temperature | - 40 C | - |
| Package / Case | SSO-16 | - |
| Mounting Style | SMD/SMT | - |
| Frequency Range | 300 MHz to 450 MHz | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Product Type | RF Receiver | RF Transmitter |
| Factory Pack Quantity | 4000 | 5500 |
| Subcategory | Wireless & RF Integrated Circuits | Wireless & RF Integrated Circuits |
| Supply Voltage Max | 5 V | - |
| Supply Voltage Min | 2.5 V | - |
| RoHS | - | Y |