Specifications
| Type | Description |
|---|---|
| Part Number | EL_SIR12-21C-TR8 |
| Manufacturer | EVERLIGHT |
| Product Type | SMD LED |
| Category | LED |
| Package / Case | Miniature SMD double-end package with right angle lens; package dimensions in mm with ±0.1 mm tolerance unless specified |
| LED Type | Chip infrared LED with right angle lens |
| Chip Material | GaAlAs |
| Lens Color | Water clear |
| Package Style | Miniature SMD package molded in water clear plastic |
| Optical Matching | Spectrally matched with silicon photodiode and phototransistor |
| Continuous Forward Current | 65 mA, Ta=25°C absolute maximum rating |
| Reverse Voltage | 5 V, Ta=25°C absolute maximum rating |
| Operating Temperature | -25 to +85 °C, absolute maximum rating |
| Storage Temperature | -40 to +85 °C, absolute maximum rating |
| Soldering Temperature | 260 °C, soldering time ≤5 seconds |
| Power Dissipation | 110 mW, at or below 25°C free air temperature |
| Radiant Intensity | Min 0.5 mW/sr, Typ 0.9 mW/sr at IF=20 mA, Ta=25°C |
| Peak Wavelength | Typ 875 nm at IF=20 mA, Ta=25°C |
| Spectral Bandwidth | Typ 80 nm at IF=20 mA, Ta=25°C |
| Forward Voltage | Typ 1.3 V, Max 1.6 V at IF=20 mA, Ta=25°C |
| Reverse Current | Max 10 µA at VR=5 V, Ta=25°C |
| View Angle | Typ 160 deg at IF=20 mA, Ta=25°C; 2θ1/2 |
| Tape Packaging | 8 mm tape on 7 inch diameter reel |
| Carrier Tape Quantity | 2000 pcs/reel |
| Storage Before Opening | ≤30°C and ≤90%RH before opening moisture proof bag |
| Storage After Opening | ≤30°C and ≤60%RH after opening package |
| Use After Opening | Within 168 hours / 7 days after opening package |
| Baking Treatment | 60±5°C for 24 hours if silica gel faded or storage time exceeded |
| Hand Soldering Condition | Less than 350°C for 3 seconds within once; soldering iron capacity less than 25 W, each terminal |
| Lifecycle Phase | Expired; datasheet footer metadata; period forever |
| Datasheet Status | request_only |
Product Overview
EL_SIR12-21C-TR8 is an EVERLIGHT infrared emitting diode configured as a chip infrared LED with a right angle lens. The device uses GaAlAs chip material and a water clear lens, with the package molded in water clear plastic. Its miniature SMD double-end package is intended for surface-mount layouts where side-emitting infrared output is required.
Electrical and optical ratings are specified at Ta=25°C where applicable. At IF=20 mA, the diode provides 0.5 mW/sr minimum and 0.9 mW/sr typical radiant intensity, 875 nm typical peak wavelength, 80 nm typical spectral bandwidth, 1.3 V typical forward voltage, and 1.6 V maximum forward voltage. The typical view angle is 160 degrees.
Assembly and storage controls include 8 mm tape on a 7 inch reel with 2000 pieces per reel, storage limits before and after opening, use within 168 hours after opening, and baking at 60±5°C for 24 hours when required. The datasheet metadata identifies the lifecycle phase as expired.
Key Features
- Chip infrared LED with right angle lens
- GaAlAs infrared emitter chip material
- Water clear lens and molded SMD package
- Spectrally matched with silicon photodiodes and phototransistors
- 875 nm typical peak wavelength at 20 mA
- 0.9 mW/sr typical radiant intensity at 20 mA
- 160 degree typical view angle
- 65 mA continuous forward current rating
- 8 mm tape on 7 inch reel
- 2000 pieces per carrier tape reel
Typical Applications
- Silicon photodiode optical sensing
- Phototransistor optical sensing
- Right angle infrared emission
- Surface mount infrared assemblies
- Wide angle IR emitter layouts
- Tape and reel LED assembly
Procurement Notes
When requesting a quote for EL_SIR12-21C-TR8, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For LED and optoelectronic sourcing, brightness bin, wavelength or color temperature bin, forward voltage range, viewing angle, moisture sensitivity level and soldering process limits may affect final selection, availability and lead time.
FAQ
What type of LED is EL_SIR12-21C-TR8?
EL_SIR12-21C-TR8 is an EVERLIGHT chip infrared LED with a right angle lens. The product type is an infrared emitting diode, using GaAlAs chip material and a water clear lens in a miniature SMD package.
What are the main optical specifications of this part?
At IF=20 mA and Ta=25°C, the device has 0.5 mW/sr minimum and 0.9 mW/sr typical radiant intensity, 875 nm typical peak wavelength, 80 nm typical spectral bandwidth, and 160 degree typical view angle.
What storage and handling limits are listed?
Before opening the moisture proof bag, storage is limited to ≤30°C and ≤90%RH. After opening, storage is ≤30°C and ≤60%RH, and the device should be used within 168 hours or 7 days.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.