Transmitter Airborne IntelliCool™ Heat Sink

The heat sink assembly includes an integral +12 VDC fan and temperature-controlled power on at +37°C. Fan speed is regulated to compensate for changes in air pressure/density under high altitude conditions. Two MDM-15 connectors and a provided pigtail cable allow the heat sink to draw power directly from a TIMTER™ transmitter, eliminating the need for a separate external power supply. Operates from 21 VDC to 34 VDC. The wiring harness connects to any 2″ x 3″ TIMTER™, regardless of MDM-15 gender, by plugging into either the male or female connector on the heat sink. An adapter plate and Bergquist QPAD II thermal pad are also included.

Part Number: QSX-AC-HS-28V-SP

Product Literature

TypeTitleVersionFile SizeUpdatedLengthDescription

Transmitter Heat Sinks Datasheet2023.11.17Quasonix offers different types of integrated and add-on heat sinks, as described in this datasheet. Please contact Quasonix for heat sink recommendations for your particular TIMTER™ transmitter.

Receiver and Transmitter Catalog2022.11.28Catalog of products including Rackmount and Compact RDMS™ Receivers; TIMTER™, nanoTX™, and nanoPuck™ Transmitters; transmitter accessories and heat sinks; Ethernet Via Telemetry (EVTM); and the Receiver Analyzer.

User Manuals and Guides

TypeTitleVersionFile SizeUpdatedLengthDescription

Transmitter Airborne IntelliCool™ Heat Sink 2×3 onto 4×3 Installation Guide2018.10.26Instructions for installing two 2″ x 3″ transmitter-powered heat sinks, designed for airborne applications, onto a single 4″ x 3″ dual transmitter.

Thermal Considerations

The heat sink required for a particular transmitter depends heavily on the installation. Factors such as altitude, air temperature, air flow, and mass of the mounting surface all have a substantial impact on the flow of heat away from the transmitter. Quasonix offers several types of integrated and add-on heat sinks. Please contact for the power dissipation required and heat sink recommendations for your particular TIMTER™ transmitter.

Regardless of the heat sink, Quasonix strongly suggests using a thermal pad, such as Q-Pad® II from Bergquist.