Clamp for hockey puck

COUGAR ELECTRONICS provide a wide range of clamps for hockey puck semiconductors like diodes and thyristors.

Our technology

  • Easy mounting technology: a test washer is released when the force is reached. No set up, no control… it can’t be easier !
  • Regular pressure guaranteed: a ball inserted under the multiaxial clamp enables to apply a regular force accordgin to the axis of the semiconductor
  • Thermal expansion control: the variation of the force due to the thermal expansion is controlled by stacking spring washers
Data sheet

Choosing the right clamp

Hockey puk semiconductors in press pack power assemblies need pressure to work in perfect conditions. The pressure is generally specified in the datasheet of the semiconductor.

Follow the steps here below to choose your clamp:

  1. Choose the type of mounting: With back plate (M or W type) or without (S type)
  2. Select the level of insulation needed: Regular (M type) or Reinforced (W type)
  3. Choose the right size of component following your hockey puck diameter
  4. Define your clamped thickness following the size of your stack

Clamp M-type

Clamp M-type
  • Clamp with back plate
  • Insulation through grommets
  • Pressure from 300 to 4500daN
  • Clamped thickness from 0.4in to 11.8in
  • Dielectric strength : single insulation 2500V / Double insulation : 6000V

Dimensions

Clamp M dimension table
Clamp M drawing

Insulation characteristics

Clamp M insulation table

Clamp W-type

Clamp W-type
  • Clamp with back plate
  • Insulation by epoxy coating
  • Pressure from 300 to 4500daN
  • Clamped thickness from 0.4in to 11.8in
  • Dielectric strength : single insulation 4000V / Double insulation : 6000V

Dimensions

Clamp W dimension table
Clamp W drawing

Insulation characteristics

Clamp W insulation table

Clamp S-type

Clamp S-type
  • Clamp without back plate
  • Insulation through grommets
  • Pressure from 300 to 4500daN
  • Clamped thickness from 0.4in to 11.8in
  • Dielectric strength : single insulation 4500V / Double insulation : 6000V

Dimensions

Clamp S dimension table
Clamp S drawing

Insulation characteristics

Clamp S insulation table

Codification

Clamp codification

Clamp

There has been a notable increase in the developpment of Silicon Carbide semiconductor materials (SiC) in the past few years. It seems we are now close to a massive use of those new solutions, made possible by the considerable number of peoples working on the subject and price drop down. The adoption of SiC solutions are mainly driven by two factors : the miniaturization and the efficiency. Silicon Carbide based devices are a very promising answer to the market pressure on power converters compactness and efficiency. The lower maximum junction temperature, allow higher density of power on the semiconductors, wich leads to decrease the size of the cooling components. Nevertheless, this positive effect is also making the thermal management challenge harder. Water cooled and heat pipes solutions are now commonly considered by power electronics engineers see cougar electronics solutions for thermal management [caption id="attachment_2308" align="aligncenter" width="300"]Silicon Carbide Silicon Carbide Losses[/caption] SiC are also well known for their capacity to work at higher frequency than classical silicon based MOSFETs and IGBTs. The magnetics components size like inductors, and transformers is mainly linked to the frequency. In this way, increasing the frequency of the device drastically allow to reduce the size and thus the weight of the magnetics components. SiC technology has been massively adopted by early adopter applications like Solar Inverter and UPS. The adoption of this new technology is slower in the high power industry like motor drives, tractions and electrical grid converters due to the reluctance in the use of new material. The market of high power Silicon Carbide semiconductors is mainly holded by niche players, that were pioneers in their field. Most of the big semiconductor manufacturers are releasing or close to release new range of devices that will trigger the signal of a massive adoption. Contact COUGAR ELECTRONICS for advises and availablity of your semi-conductor. Other links : IEEE article about SiC
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