TMP Thermal Pad Accessory
Crane Aerospace & Electronics Power Solutions
Crane Aerospace & Electronics
Electronics Group (Interpoint Brand)
PO Box 97005 • Redmond WA 98073-9705
425.882.3100 • electronics@craneae.com
www.craneae.com
Page 1 of 2
Rev C - 20060508
MODEL
NUMBER
TMP-001
TMP-002
TMP-003
TMP-005
TMP-007
CONVERTER
SERIES
MFL, MFLHP, MHP,
MOR
MWR, MTR Triple,
MHV Triple,
MTO, MTW, MRH,
MHL, HR300
MTR Single and Dual,
MHV Single and Dual,
MHD, MHE, MLP
MPE, MHF+
MOR
DESCRIPTION
Our accessory Thermal Mounting Pads (TMP) provide a simple
and effective method of ensuring a low thermal resistance path
between a DC/DC converter and its mounting plane. When placed
between the converter and circuit board or heat sink, it will provide
electrical isolation, fill small surface irregularities, and produce a
0.20° C in
2
/W (129°C mm
2
/W) thermal resistance path.
MATERIAL
The Thermal Mounting Pads, made of silicon rubber and fiber-
glass, are thermally stable and non-flammable. They are non-toxic,
do not require grease and do not exhibit the cracking problems of
ceramic materials. The pads may temporarily react to some
cleaning agents (notably chlorinated hydrocarbons) by swelling,
but are not damaged after the solvent is removed. They will
tolerate soldering process temperatures.
MOUNTING
For maximum thermal conduction from the converter through the
thermal pad to the thermal plane, a mounting pressure of 300-600
lbs/in
2
is recommended. To achieve this level of mounting pres-
sure, we recommend using our flanged models. The formula to
calculate the recommended pressure is P=(T*N)/(0.2*D*A); where
P=pressure in PSI, T=torque, N=number of fasteners, D=fastener
diameter (in inches), A=contact surface area (in square inches).
FEATURES
• –60° to +180°C temperature rating
• Provides thermal transfer for
Interpoint converters
• 0.2°C in
2
/W (129°C mm
2
/W) thermal
resistance
• 4000 Vac breakdown voltage typical
For details, refer to Figures 1 through 5 on the following page.
