HARDWARE / PRODUCTAdded 1 Jul 2026

HiK Plates / Heat Pipe Assemblies

ACT (Advanced Cooling Technologies)
HiK Plates / Heat Pipe Assemblies

Custom heat spreaders with embedded copper-water heat pipes offering effective thermal conductivities of 10,000–100,000 W/m·K, designed to collect and move heat from multiple component hotspots to card edges or remote heat sinks.

Typed specifications16 values

Discloses 3 of 7 fields engineers filter by in this category (category median 2).

Envelope (L×W×H)
alumina
product page 29-39 W/m∙K  |  10-100 kV/mm
Power consumption
64 W
product page 6 W
Operating temperature
20–150 °C
product page
Product type
heat pipe
embedded Copper/Water heat pipes · datasheet p.1 thermal doubler or spreader heat spreaders made by embedding heat pipes into a structural…
Material
Aluminum Plates
datasheet p.1 Copper/Water Heat Pipes
Thickness
1.8–6 mm
datasheet p.1
Working fluid
water
Copper/Water Heat Pipes · datasheet p.1
Survival temperature
85 °C
max · freeze-thaw tolerant; printed «55°C to +85°C survival», lower… · datasheet p.1
Flight heritage
ACT’s Copper-Water Heat Pipes and HiK Plates Now Have Space Fight Heritage
datasheet p.2
Max available size (L × W)
60 cm x 60 cm
datasheet p.1
Envelope material
copper
Copper/Water Heat Pipes · datasheet p.1

Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.

As published by the supplier16 lines, in the manufacturer's own wording
Operating temperature range
20–150°C
Effective thermal conductivity
10,000–100,000 W/m·K
Outer diameter range
1/16" (1.5 mm) to 1.5" (38 mm)
Cross-section geometry
Round, rectangular, or flattened
Surface coating options
Nickel or tin
Freeze-thaw tolerance
Yes
Envelope material
alumina
Envelope material thermal conductivity
29-39 W/m∙K
Envelope material breakdown strength
10-100 kV/mm
Working fluid
R-1233zd
Fill ratio
25%
Power transport (at 80°C)
64 W
Number of channels
20
Channel diameter
0.078’’ (2 mm)
Voltage isolation
28 kV
Maximum power transport
6 W/in2

About

HiK (High Conductivity) Plates are custom-engineered heat spreaders with embedded heat pipe arrays that transport thermal energy from discrete component hotspots to remote heat sinks with minimal temperature gradients. By embedding heat pipes within a metallic plate, ACT creates a planar thermal conduit with effective conductivities far exceeding copper alone.

Copper/water heat pipes embedded in HiK plates operate between 20°C and 150°C with effective thermal conductivities of 10,000 to 100,000 W/m·K. Available outer diameters range from 1/16 inch (1.5 mm) to 1.5 inches (38 mm), with round, rectangular, or flattened cross-sections. HiK plates are particularly effective for conduction-cooled embedded computing cards (VME, VPX, cPCI formats) and Space VPX applications.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.1-act.com ↗

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