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250 Watt Laser Diode Heat Sink with Air Cooled Base for High Power Lasers

  • 250 Watt Laser Diode Heat Sink
  • Laser Diode Heat Sink Model LDM-250W Dimensions
  • 250 Watt laser diode heat sink connectors
  • high power heatsink for laser diodes

sku / item#: RLS/LDM-250W
ships: Request a Quote for Current Ship Date

Key Features
  • Pre-Configured Mounting Plate for your Laser Package Type, Request Custom Mounting Plate Options and Pricing
  • Thermal Resistance R (th): 0.059 K/W
  • Laser Diode Waste Heat Removal of 250 Watts at Ambient Temperature of 20°C
  • Standard Mounting Plates for Lumics, JENOPTIK, DILAS, Coherent and More

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PRICE $985.00
Specifications (@ 25ºC Ambient)
  • Heat Load Maximum: 250 Watts
  • Thermal Resistance R (th): 0.059 K/W
  • Laser Diode Mounting Area: 100mm x 140mm
  • Laser Diode Package Footprint (pre-drilled holes): Customer Specified
  • Temperature Uniformity: < 0.5ºC Across Mounting Plate Surface
  • Laser Diode Mounting Plate Surface Flatness: < 10 µm
  • Dual Fans Power Requirement: 2 x 24 VDC (14 Watts)
  • Dual Fans Maximum Noise: 53 dB
  • Submit Your Laser Diode PDF Data Sheet to Receive the Mounting Plate Part Number
  • Standard Mounting Plates Available for Most Fiber Coupled Package Styles
  • Custom Mounting Plates Available on Request
COOLING CAPACITY relative to ambient temperature
  • Ambient Temperature 20°C ... Waste Heat Removal 250 Watts
  • Ambient Temperature 25°C ... Waste Heat Removal 170 Watts
  • Ambient Temperature 30°C ... Waste Heat Removal 90 Watts

Product Overview:

250 Watt Laser Diode Mount & Heat Sink Overview

The LDM-250W high power laser diode heat sink and mounting module is a high-performance mounting solution designed for fiber coupled and free-space laser diodes. It is an "all-air" cooling design which precisely stabilizes the temperature or your laser. The heat from the laser diode is pumped through the TEC to the heatsink at the base of the cooling block. The fan located in the base dissipates the heat from the base of the cooling block.

Passively Cooled Laser Diode Heat Sink:

The LDM-250W is a passively cooled heat sink, meaning that their are no Peltier elements in the unit. The heat emitting from the laser is conducted down through the laser mounting plate through a low thermal impedance plate surface. Two high CFM fans located in the base dissipate the heat from the base of the block into the air. The LDM-250W offers a low thermal impedance of < 0.059 K/W mounting surface for the laser being tested. The thermal performance of a passively cooled heat sink is highly dependent on the thermal impedance, or resistance. This measurement is defined in units of degrees Celsius per watt of heat°C/W. The thermal resistance allows the user to determine the amount of temperature rise that the laser diode will experience for each watt of thermal energy that is emitted by the device under test. The dual fans in the base greatly improve the thermal performance of the heat sink and allow the user to set the laser temperature to a set-point which is equivalent to the lab ambient temperature. Careful machining of the mounting plate surface finish and surface flatness are also crucial to the heat sink performance.

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