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Crane Aerospace & Electronics Power Solutions
TMP Thermal Pad Accessory
FEATURES
* -60 to +180C temperature rating * Provides thermal transfer for Interpoint converters * 0.2C in2/W (129C mm2/W) thermal resistance * 4000 Vac breakdown voltage typical
TMP-007 TMP-001
TMP-003
TMP-002
MODEL NUMBER TMP-001
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
For details, refer to Figures 1 through 5 on the following page. TMP-005
TMP-002
TMP-003
TMP-005 TMP-007
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 in2/W (129C mm2/W) thermal resistance path.
MOUNTING
For maximum thermal conduction from the converter through the thermal pad to the thermal plane, a mounting pressure of 300-600 lbs/in2 is recommended. To achieve this level of mounting pressure, 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).
MATERIAL
The Thermal Mounting Pads, made of silicon rubber and fiberglass, 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.
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
Crane Aerospace & Electronics Power Solutions
TMP Thermal Pad Accessory
TMP-001 3.020 x 1.520 inches, nominal (76.71 x 38.61 mm) MFL, MFLHP, MHP, MOR Series Converters Case U
TMP-002 2.720 x 1.366 inches nominal (69.09 x 34.70 mm) MTR Triple, MHV Triple, MTO, MTW, MRH, MHL, MWR and HR300 Series Converters All J cases, see Section B8
FIGURE 1: TMP-001
FIGURE 2: TMP-002
TMP-007 2.665 x 2.020 inches nominal (67.69 x 51.31 mm) MOR Series Converters, FME Series Filters Cases W, Y & Z
TMP-003 2.860 x 1.144 inches nominal (72.64 x 29.06 mm) MTR Single and Dual, MHV Single and Dual, MHD, MHE, and MLP Series Converters All K cases, see Section B8
FIGURE 3: TMP-007
FIGURE 4: TMP-003
CHARACTERISTIC
Color Thermal Resistance, C in2/W Dielectric Constant Continuous Use Temperature C Thermal Conductivity (W/meter - K) Thickness Breakdown Voltage (per ASTM D149) Green
TYPICAL VALUE
Unless otherwise noted TMP-005 2.000 x 1.130 inches nominal (50.80 x 28.70 mm) MHF+ and MPE Series Converters All G cases, see Section B8
0.20 (129C mm2/W) 4.00 -60 to +1801 2.00 0.010 0.001 inches (0.25 0.025 mm) 4000 min. Vac (400 Vac per mil)
FIGURE 5: TMP-005
Notes: 1. Converter or filter being used with thermal pad must not exceed its maximum case temperature.
TMP Thermal Pad Accessory Rev C - 20060508. This revision supercedes all previous releases. All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. TMP Series is a trademark of Interpoint. Copyright (c) 1999 - 2006 Interpoint Corporation. All rights reserved. www.craneae.com
Page 2 of 2

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