Laser Diode 905nm 50W (EMC)
Power：50W
1. Product Model: PLD905‑50W‑P, epoxy‑resin encapsulated non‑hermetic pulsed laser diode (PLD)
2. Chip Design: Triple stacked epitaxial emitters for high‑peak‑power pulsed output
3. Optical Performance: 905 nm nominal wavelength, 50W application‑rated peak optical power
4. Drive Condition: Optimized for 1‑100 ns short pulse, maximum allowable duty cycle 0.1%
5. Lead‑frame Options: Gold‑plated or silver lead‑frame, identical optical performance for both versions
6. Package Feature: Through‑hole epoxy‑resin encapsulated housing, low‑cost for mass‑volume PCB soldering & assembly
7. Operating Range: ‑40℃ ~ +85℃ working temperature for civil sensing devices
Main Applications: High‑performance handheld laser rangefinders, UAV medium‑distance ranging & obstacle avoidance, medium‑range civil LiDAR
8. Quality & Service: 100% pulsed‑mode optical‑electrical testing, sample and bulk‑order support available
Product Overview
Leirte PLD905‑50W‑P is a cost‑optimized plastic‑molded Pulsed Laser Diode (PLD) adopting triple stacked epitaxial emitters, developed for medium‑range Time‑of‑Flight distance‑sensing systems.
High‑volume civil ranging projects always seek ways to lower BOM cost while maintaining adequate peak power for longer detection distance. This 905nm infrared pulsed laser diode delivers stable 50W application‑grade peak power within a cost‑efficient non‑hermetic through‑hole plastic housing. Two lead‑frame solutions including gold‑plated and silver are provided to satisfy diverse cost‑budget requirements.
Perfectly matched with silicon photodetectors, PLD905‑50W‑P is widely selected by OEM engineers for high‑performance handheld laser rangefinders, drone ranging & obstacle avoidance and medium‑range LiDAR modules. Factory direct supply supports prototype sample validation and mass serial production.
Critical Limitation Notice：
This plastic‑molded package is non‑hermetic. It is intended for civil commercial indoor / protected outdoor equipment; not suitable for continuous salt‑fog or high‑humidity harsh environments. End‑products must comply with IEC 60825‑1 laser‑safety requirements for invisible infrared laser emission.
Core Design & Performance Benefits‑ Triple stacked‑emitter chip architecture：
Three vertically stacked emitters concentrate optical output within a compact 70 µm × 10 µm emission aperture, producing high peak power under nanosecond‑level short‑pulse drive conditions, ideal for ToF signal triggering.
‑ Triple stacked‑emitter chip architecture：Three vertically stacked emitters output high peak power under nanosecond short‑pulse drive, without enlarging chip footprint, great for boosting ToF signal strength for medium‑distance measurement.
‑ Optimized beam divergence profile：Distinct fast‑axis and slow‑axis beam angles generate predictable far‑field distribution, lowering the difficulty of secondary optical lens design for ranging modules.
‑ Consistent spectral characteristics：Nominal 905 nm wavelength with narrow spectral width. Low wavelength thermal drift reduces repeated system calibration work across full operating temperature range.
‑ Dual lead‑frame for flexible cost control：Gold‑plated lead‑frame provides superior anti‑oxidation capability for devices requiring long service lifespan; silver lead‑frame helps cut component expense for mass‑consumer products, both versions share identical optical performance.
‑ Standard plastic through‑hole package：Universal pin layout enables easy PCB soldering and automated mass‑assembly;‑40 °C ~ +85 °C working temperature covers most civil sensing application conditions.
‑ 100% batch optical‑electrical screening：Every production lot is tested under actual pulsed working mode, ensuring stable power and beam consistency, minimizing early‑failure risk of end modules.
Key Operating Parameters
| Parameter | Typical Performance |
|---|---|
| Nominal Wavelength | 905 nm（895‑915 nm tolerance） |
| Application‑rated Peak Optical Power | 50 W（higher absolute peak value） |
| Supported Pulse Width | 1 ns‑100 ns |
| Maximum Allowable Duty Cycle | 0.1%（strict operating limit） |
| Emission Aperture | Multi‑stack emitter structure |
| Package Style | Non‑hermetic plastic molded PLD; gold / silver lead‑frame options |
| Operating Temperature | ‑40 °C ~ +85 °C |
Standard Test Reference：100 ns pulse width,3 kHz repetition rate,TA = 25 °C
Real‑World Application ScenariosBuilt for Time‑of‑Flight optical ranging solutions that demand higher peak power, mass‑production feasibility and balanced cost‑performance：
‑ High‑performance Handheld Laser Rangefinder(LRF): golf rangefinder, hunting distance meter, civil engineering survey instruments
‑ UAV payload: drone altimetry, medium‑distance ranging and obstacle‑avoidance sensing
‑ Medium‑range civil LiDAR and robot distance‑detection modules
‑ Industrial non‑contact medium‑distance measuring sensors
What Makes Leirte Different
Dual lead‑frame stock options：one part number covers two lead‑frame material choices, helping you optimize BOM cost according to product tiers.
Sample‑friendly procurement：small‑quantity samples available for lab prototype validation before mass commitment.
Photonics engineering support：we provide test‑condition guidance, characteristic curve references and integration suggestions for your drive‑circuit & optical‑path design.
Controlled batch consistency：rigorous pulsed‑mode production screening reduces variance when scaling to mass production.
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