| PartNumber | TSSP77038TR | TSSP77P38TT | TSSP77P38TR |
| Description | Infrared Receivers IR Receiver Module | Infrared Receivers IR sensor IC 38kHz | Infrared Receivers Heimdall 38kHz |
| Manufacturer | Vishay | Vishay | Vishay |
| Product Category | Infrared Receivers | Infrared Receivers | Infrared Receivers |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Carrier Frequency | 38 kHz | 38 kHz | 38 kHz |
| Transmission Distance | 40 m | 40 m | 40 m |
| Beam Angle | 50 deg | 100 deg | 100 deg |
| Viewing Angle | 50 deg | 100 deg | 100 deg |
| High Level Pulse Width | 0.8 ms | 0.8 ms | 0.8 ms |
| Low Level Pulse Width | 0.8 ms | 0.8 ms | 0.8 ms |
| Minimum High Level Output Voltage | 100 mV | - | - |
| Output Current | 5 mA | 5 mA | 5 mA |
| Operating Supply Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V |
| Operating Supply Current | 700 uA | 700 uA | 700 uA |
| Pd Power Dissipation | 10 mW | 10 mW | 10 mW |
| Minimum Operating Temperature | - 25 C | - 25 C | - 25 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Package / Case | SMD-4 | Heimdall-4 | Heimdall-4 |
| Packaging | Reel | Reel | - |
| Height | 3.2 mm | 3.2 mm | 3.2 mm |
| Length | 6.8 mm | 6.8 mm | 6.8 mm |
| Width | 3 mm | 3 mm | 3 mm |
| Brand | Vishay Semiconductors | Vishay Semiconductors | Vishay Semiconductors |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | IR Receivers | IR Receivers | IR Receivers |
| Factory Pack Quantity | 2300 | 2200 | 2300 |
| Subcategory | Infrared Data Communications | Infrared Data Communications | Infrared Data Communications |
| Unit Weight | 0.002892 oz | 0.007055 oz | - |
| Peak Wavelength | - | 940 nm | 940 nm |