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See Product Specifications
| Part Number: | SX1243IULTRT | 
| Category: | RF/IF and RFID | 
| Subcategory: | RF Transmitters | 
| Manufacturer: | Semtech Corporation | 
| Packaging: | Tape & Reel (TR) | 
| Product Status: | Active | 
| Frequency: | 310MHz ~ 450MHz, 860MHz ~ 870MHz, 902MHz ~ 928MHz | 
| Applications: | RKE, Security Systems | 
| Modulation or Protocol: | FHSS, FSK, OOK | 
| Data Rate (Max): | 100kbps | 
| Power - Output: | 10dBm | 
| Current - Transmitting: | 17.5mA | 
| Data Interface: | PCB, Surface Mount | 
| Antenna Connector: | PCB, Surface Mount | 
| Memory Size: | - | 
| Features: | - | 
| Voltage - Supply: | 1.8V ~ 3.7V | 
| Operating Temperature: | -40°C ~ 85°C | 
| Mounting Type: | Surface Mount | 
| Package / Case: | 8-UFDFN Exposed Pad | 
| Supplier Device Package: | 8-DFN (3x2) |