Peak emission wavelength: 3.3 µm, 3.9 µm, 4.3 µm The L15893 series, L15894 series, L15895 series are mid infrared LEDs with the peak wavelength of 3.3 μm, 3.9 μm, and 4.3 μm respectively, manufactured using Hamamatsu unique crystal growth and process technologies. Output is significantly increased compared to the previous products. These are suitable as light sources mounted in gas detectors. High output High-speed response High reliability Low power consumption S mall surface mount type ceramic package (L15893-0330C, L15894-0390C, L15895-0430C) T O-46 with reflector (for light condensing) (L15893-0330ML, L15894-0390ML, L15895-0430ML) Package Surface mount type ceramic*1 TO-46 TO-46 with reflector Surface mount type ceramic*1 TO-46 TO-46 with reflector Surface mount type ceramic*1 TO-46 TO-46 with reflector Window material Si with AR coating None*2 Si with AR coating None*2 Si with AR coating None*2 *1: These products are not hermetically sealed. *2: To protect the emission section, protective tape is applied to the surface of the product. Remove the tape after assembly.

Pulse forward current IFP *3 (A) *3: Pulse width=10 µs, duty ratio=1% *4: No dew condensation When there is a temperature difference between a product and the surrounding area in high humidity environments, dew condensation may occur on the product surface. Dew condensation on the product may cause deterioration in characteristics and reliability. *5: Reflow soldering, JEDEC J-STD-020 MSL 3, see P.10 Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the product within the absolute maximum ratings. Electrical and optical characteristics...

Emission spectrum Pulse forward current vs. pulse forward voltage Pulse forward current (mA) Relative light output (%) 20 Light output vs. ambient temperature Pulse forward voltage (V) KLEDB0538EB Light output vs. ambient temperature (Typ.) Relative light output (dB) Ambient temperature (°C) L15893-0330ML, L15894-0390ML, L15895-0430ML: operating temperature = -20 to +60 °C KLEDB0543EC

adiant flux vs. pulse forward current Radiant flux vs. pulse forward current Radiant flux vs. pulse forward current L15893 series Previous product adiant flux vs. pulse forward current 0.01 10 Pulse forward current (mA) Pulse forward current (mA) KLEDB0539EC Previous product Pulse forward current (mA) KLEDB0541EC

emperature characteristics of emission spectrum Temperature characteristics of emission spectrum Temperature characteristics of emission spectrum L15893 series 0.1 emperature characteristics of emission spectrum 0 2.0 Wavelength (µm) L15893-0330ML, L15894-0390ML, L15895-0430ML: operating temperature = -20 to +60 °C KLEDB054

Relative light output (%) Relative light output (%) KLEDB0464EA

Allowable forward current vs. ambient temperature Allowable forward current vs. duty ratio Allowable forward current (A) Relative forward current (%) Dimensional outline imensional outline (unit: mm) L15893-0330ML, L15894-0390ML, L15895-0430ML: operating temperature = -20 to +60 °C KLEDB0417EB Dimensional outlines (unit: mm) L15893-0330M, L15894-0390M, L15895-0430M Emission section Emission section Recommended land pattern Case KLEDA0101ED KLEDA0105

Dimensional outline (unit: mm) Emission section Values in parentheses indicate reference. 2.54 ± 0.2

Standard packing specifications L15893-0330C, L15894-0390C, L15895-0430C tandard packing specification Reel (conforms to JEITA ET-7200) Outer diameter ɸ180 mm Electrostatic characteristics Conductive Embossed tape (unit: mm, material: PS, conductive) Reel feed direction KLEDC0060EA Packing quantity 500 pcs/reel Packing state Reel and desiccant in moisture-proof packaging (vacuum-sealed)

Recommended soldering conditions L15893-0330C, L15894-0390C, L15895-0430C Peak temperature 240 °C max. Peak temperature - 5 °C 30 s max. Cooling 6 °C/s max. ‧ fter unpacking, keep it in an environment at 5 to 30 °C A and a humidity of 60% or less, and perform soldering within 168 hours. ‧ he effect that the product receives during reflow T soldering varies depending on the circuit board and reflow oven that are used. When you set reflow soldering conditions, check that problems do not occur in the product by testing out the conditions in advance. L15893-0330M, L15894-0390M, L15895-0430M Solder...

Mid infrared LED evaluation kit M16615 This is a driver for mid infrared LED (L15893-0330M, L15894-0390M, L15895-0430M). The LED can be pulse-driven simply by connecting the power supply (+15 V). Contact us for detailed information. Note: LED sold separately Related information www.hamamatsu.com/sp/ssd/doc_en.html Precautions Disclaimer Safety consideration Metal, ceramic, plastic package products Compound opto-semiconductors (photosensors, light emitters) Technical information ∙ LED / Technical note Information described in this material is current as of March 2022. Product specifications are...