| PartNumber | TSUS3400 | TSUS4400 |
| Description | Infrared Emitters RECOMMENDED ALT 78-TSUS4400 | Infrared Emitters 18 Degree 170mW 950nm |
| Manufacturer | Vishay | Vishay |
| Product Category | Infrared Emitters | Infrared Emitters |
| RoHS | Y | Y |
| Packaging | Bulk | Bulk |
| Illumination Color | Infrared | Infrared |
| Brand | Vishay Semiconductors | Vishay Semiconductors |
| Product Type | IR Emitters (IR LEDs) | IR Emitters (IR LEDs) |
| Factory Pack Quantity | 5000 | 5000 |
| Subcategory | Infrared Data Communications | Infrared Data Communications |
| Mounting Style | - | Through Hole |
| Wavelength | - | 950 nm |
| Radiant Intensity | - | 140 mW/sr |
| If Forward Current | - | 100 mA |
| Vf Forward Voltage | - | 1.7 V |
| Power Rating | - | 170 mW |
| Minimum Operating Temperature | - | - 55 C |
| Maximum Operating Temperature | - | + 100 C |
| Height | - | 4.5 mm |
| Length | - | 3.2 mm |
| Width | - | 3.2 mm |
| Lens Shape | - | Circular |
| Viewing Angle | - | 18 deg |
| Lens Dimensions | - | 2.9 mm x 2.9 mm x 3.5 mm |
| Rise Time | - | 800 ns |
| Vr Reverse Voltage | - | 5 V |
| Unit Weight | - | 0.004303 oz |