Laser Diode 905nm 75W (EMC)

Product Overview

Leirte PLD905‑25W‑P is a cost‑optimized plastic‑molded Pulsed Laser Diode (PLD) built with triple stacked epitaxial emitters, engineered for Time‑of‑Flight distance‑sensing systems.

Many high‑volume civil ranging projects face pressure to lower BOM cost without sacrificing pulsed optical performance. This 905nm infrared pulsed laser diode delivers stable 25W application‑grade peak power in an economical non‑hermetic through‑hole plastic housing. It is offered with two lead‑frame alternatives (gold‑plated or silver) to match different cost‑target bill‑of‑material.

Well‑matched with silicon‑based photodetectors, PLD905‑25W‑P is widely adopted by OEM developers for handheld laser rangefinders, drone ranging & obstacle avoidance and short‑range LiDAR modules. Factory direct supply supports prototype sample testing and large‑volume 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.

‑ Controlled beam divergence profile：Distinct fast‑axis / slow‑axis beam angles deliver predictable far‑field patterns, simplifying secondary optical lens design for your ranging module.

‑ Stable spectral output：905 nm nominal wavelength with narrow spectral width; low wavelength thermal drift reduces system calibration workload over operating temperature range.

‑ Two lead‑frame variants for flexible costing：Gold‑plated lead‑frame improves anti‑oxidation performance for products requiring extended service life; silver lead‑frame cuts component cost for mass‑volume consumer‑grade devices, identical optical performance for both versions.

‑ Plastic through‑hole form factor：Standard pin layout for straightforward PCB soldering and high‑speed assembly; wide operating temperature ‑40 °C ~ +85 °C covers most civil sensing equipment working conditions.

‑ 100% batch optical‑electrical screening：Every production lot passes pulsed‑mode testing to secure consistent power & beam performance across units, lowering early‑failure risk for your finished modules.

Key Operating Parameters

Standard Test Reference：100 ns pulse width,3 kHz repetition rate,TA = 25 °C

Real‑World Application ScenariosDesigned for Time‑of‑Flight optical ranging solutions where high‑volume manufacturing and balanced performance‑to‑cost ratio are key priorities：‑ Handheld Laser Rangefinder(LRF): golf distance meter, hunting range finder, civil engineering survey instruments‑ UAV payloads: drone altimetry, ranging and obstacle‑avoidance sensing‑ Short‑range civil LiDAR and robot distance‑detection modules‑ Industrial non‑contact short‑to‑medium distance measuring sensors

What Makes Leirte Different

1. Dual lead‑frame stock options：one part number covers two lead‑frame material choices, helping you optimize BOM cost according to product tiers.

2. Sample‑friendly procurement：small‑quantity samples available for lab prototype validation before mass commitment.

3. Photonics engineering support：we provide test‑condition guidance, characteristic curve references and integration suggestions for your drive‑circuit & optical‑path design.

4. Controlled batch consistency：rigorous pulsed‑mode production screening reduces variance when scaling to mass production.