| PartNumber | IR91-21C/TR7 | IR91-21C/TR10 | IR91-21C/TR9 |
| Description | Infrared Emitters Infrared LED 940nm Water Clear Lens | Infrared Emitters Infrared LED | Infrared Emitters Infrared LED |
| Manufacturer | Everlight | Everlight Electronics Co Ltd | Everlight Electronics Co Ltd |
| Product Category | Infrared Emitters | Infrared, UV, Visible Emitters | Infrared, UV, Visible Emitters |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Wavelength | 940 nm | 940nm | 940nm |
| Radiant Intensity | 25 mW/sr | 5 mW/sr | - |
| If Forward Current | 20 mA | - | - |
| Vf Forward Voltage | 1.5 V | - | - |
| Power Rating | 130 mW | 130 mW | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Package / Case | SMD | - | - |
| Packaging | Reel | Digi-ReelR Alternate Packaging | Cut Tape (CT) Alternate Packaging |
| Height | 2.7 mm | - | - |
| Illumination Color | Infrared | Infrared | Infrared |
| Length | 2.5 mm | - | - |
| Width | 2 mm | - | - |
| Brand | Everlight | - | - |
| Lens Shape | Circular | Dome | - |
| Viewing Angle | 25 deg | 25° | 25° |
| Lens Dimensions | 1.9 mm x 1.9 mm x 1.4 mm | - | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | IR Emitters (IR LEDs) | - | - |
| Factory Pack Quantity | 1000 | - | - |
| Subcategory | Infrared Data Communications | - | - |
| Vr Reverse Voltage | 5 V | - | - |
| Series | - | - | - |
| Type | - | IR | IR |
| Package Case | - | 2.5 mm x 2.2 mm x 2.7 mm | Axial, Flat Leads |
| Operating Temperature | - | -25°C ~ 85°C (TA) | -25°C ~ 85°C (TA) |
| Mounting Type | - | Surface Mount | Through Hole |
| Current DC Forward If Max | - | 65mA | 65mA |
| Orientation | - | Top View | Top View |
| Voltage Forward Vf Typ | - | 1.2V | 1.2V |
| Radiant Intensity Ie Min If | - | 3mW/sr @ 20mA | 3mW/sr @ 20mA |
| Vf Forward Voltage | - | 1.2 V | - |
| If Forward Current | - | 20 mA | 20 mA |