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242 TEC C-Mount LaserMount

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242 TEC C-Mount LaserMount

Active Cooling
The 242 TEC C-Mount LaserMount was designed for high power C-Mount applications needing active temperature control. With its large heat sink and integrated fan, the 242 can handle high thermal loads or broad temperature ranges.

The 242 also has an integrated fan for excellent thermal performance. When using the fixture with a 5300 Series TECSource, the 5300 has a built-in power supply for the fan, or a 2.3mm DC power jack on the side of the mount can be used (a suitable one is available in the accessories list).

The 242 is a post-mounted fixture. A pedestal is included with the mount, but can be removed. ¼-20 and M4 threaded holes on the bottom of the mount can be used with alternate post mounts.

  • Active TEC cooling
  • 25W Thermal Capacity
  • C-Mount package
  • Nitrogen purge
  • Solder-less connections



C-Mount Clamp
Mounting your c-mount device on the 242 is easy and requires no wiring. A pocked formed by a stainless steel alignment plate aligns the device, and a clamp makes electrical contact to the tail of the device.

Nitrogen Purge
The 242 features nitrogen purge for preventing condensation when operating below the dew point.

DB-9 & DB-15 Interfaces
The laser driver and temperature controller connections are made through a DB-9 LDD and a DB-15 TEC connector on the back of the mount, which allows for quick connections to any Arroyo Instruments controllers.

Thermistor Control
The mount uses a 10K thermistor for temperature feedback. More details on working with thermistors can be found here.


    Laser Package Supported


    Thermal Capacity


At 0°C delta from ambient, 25°C ambient temperature

    Input connectors
    Laser Diode

DB-9, male

    Mount TEC

DB-15, male


2.1mm round, 8 to 12VDC


1/8” barb

    Recommended nitrogen flow

1 to 2 SCFH

    Temperature Control
    Temperature Range (°C)

-5 to +85

    Sensor Type

10kΩ Thermistor

    TE Module Imax (A)


    TE Module Vmax (V)


    TE Module Qmax (W)


    Size without base (H x W x D) [in(mm)]

4.0 (101.6) x 4.0 (101.6) x 3.5 (76.2)

    Mounting holes

Slotted holes for ¼-20 (base)
¼-20 x 2 (for post mount)
M6 (for post mount)
4-40 x 4 for nitrogen cover plate