FEATURES AND BENEFITS
? Thermal impedance: 1.13ºC-in2 /W @ 50 psi
? Original Sil-Pad material
? Excellent mechanical and physical characteristics
? Flame retardant
TYPICAL APPLICATIONS
? Power supplies
? Automotive electronics
? Power semiconductors
? Motor controls
BERGQUIST SIL PAD TSP 900 is a composite of silicone rubber and fiberglass. The material is flame retardant and is specially formulated for use as a thermally conductive insulator. The primary use for BERGQUIST SIL PAD TSP 900 is to electrically isolate power sources from heat sinks.
BERGQUIST SIL PAD TSP 900 has excellent mechanical and physical characteristics. Surfaces are pliable and allow complete surface contact with excellent heat dissipation.
BERGQUIST SIL PAD TSP 900 actually improves its thermal resistance with age. The reinforcing fiberglass provides excellent cut-through resistance. In addition, BERGQUIST SIL PAD TSP 900 is non-toxic and resists damage from cleaning agents.
TYPICAL PROPERTIES
Physical Properties
Hardness, Shore A, ASTM D2240 85
Breaking Strength, ASTM D1458, KN/m 5
Elongation , 45º to warp and fill, ASTM D412,% 54
Tensile Strength, ASTM D412, MPa 20
Flammability Rating, UL 94 V-0
Electrical Properties
Dielectric Breakdown Voltage , ASTM D149, Vac 3,500 to 4,500
Dielectric Constant, ASTM D150 @ 1,000 Hz 5.5
Volume Resistivity, ASTM D257, ohm-meter 1×1011
Thermal Properties
Thermal Conductivity , ASTM D5470, W/(m-K) 0.9
Thermal Performance vs. Pressure
TO-220 Thermal Performance, ºC/W
@ 0.007":
@ 10 psi 6.62
@ 25 psi 5.93
@ 50 psi 5.14
@ 100 psi 4.38
@ 200 psi 3.61
@ 0.009":
@ 10 psi 8.51
@ 25 psi 7.62
@ 50 psi 6.61
@ 100 psi 5.63
@ 200 psi 4.64
Thermal Impedance, ASTM D5470, ºC-in2 /W (1)
@ 0.007":
@ 10 psi 1.82
@ 25 psi 1.42
@ 50 psi 1.13
@ 100 psi 0.82
@ 200 psi 0.54
@ 0.009":
@ 10 psi 2.34
@ 25 psi 1.83
@ 50 psi 1.45
@ 100 psi 1.05
@ 200 psi 0.69