## TSKD-3JLN-R: Electronic Specifications & Overview The **TSKD-3JLN-R** is a high-performance Infrared (IR) Emitting Diode (LED). It is specifically designed for high-speed data transmission and high-power IR applications. --- ### 1. Key Technical Specifications Below are the primary electronic characteristics of the TSKD-3JLN-R: | Parameter | Value / Specification | | :--- | :--- | | **Technology** | GaAlAs (Gallium Aluminum Arsenide) on GaAS | | **Peak Wavelength** | 940 nm (Infrared) | | **Forward Voltage ($V_F$)** | Typ. 1.35V (at $I_F = 100mA$) | | **Radiant Intensity ($I_e$)** | 40 mW/sr to 120 mW/sr | | **Angle of Half Intensity** | ± 22° | | **Switching Times** | $t_r = 800$ ns / $t_f = 800$ ns | | **Package Type** | Leadless surface mount (SMD) | --- ### 2. Functional Description The TSKD-3JLN-R is part of the **GaAlAs/GaAs** family, which allows it to achieve high radiant power and high speed compared to standard GaAs emitters. * **High Radiant Power:** It delivers a strong IR signal, making it suitable for long-distance sensing or high-speed communication. * **Wavelength:** The 940 nm emission is invisible to the human eye and matches perfectly with Silicon photodetectors (phototransistors and photodiodes). * **SMD Design:** The leadless, small-footprint package is ideal for modern automated assembly and compact electronic devices. --- ### 3. Absolute Maximum Ratings To ensure the longevity of the component, the following limits should not be exceeded: | Rating | Symbol | Value | | :--- | :--- | :--- | | **Forward Current** | $I_F$ | 100 mA | | **Peak Forward Current** | $I_{FM}$ | 200 mA (at $t_p \leq 100\mu s$) | | **Reverse Voltage** | $V_R$ | 5 V | | **Power Dissipation** | $P_V$ | 190 mW | | **Operating Temperature** | $T_{amb}$ | -40 to +85 °C | --- ### 4. Typical Applications This component is commonly found in: 1. **Infrared Remote Controls:** TV, Air Conditioning, and Audio systems. 2. **Optical Switches:** Detecting presence or position. 3. **Data Transmission:** High-speed IR wireless communication (IrDA compatible). 4. **Smoke Detectors:** Used as the light source in the detection chamber. ---