Thermal SIL PAD® Materials

Bergquist Company Thermal SIL PAD® Materials are electrically and non-electrically insulating silicone thermal interface materials. These materials minimize thermal resistance from the external package of a power semiconductor to the heat sink. This is achieved by isolating the semiconductor electrically from the heat sink and providing sufficient dielectric strength to withstand high voltage. The Bergquist SIL PAD materials are made of conformable fiberglass and silicone rubber, which provides a more versatile material than mica or ceramics and grease. These materials are designed to be clean, grease-free, and flexible. The SIL PAD materials feature reinforcements to resist cut-through, a wide range of thermal conductivities and dielectric strengths, and excellent thermal performance with minimized thermal resistance. These cost-effective materials are resistant to electrical shorting and enhance performance for high-heat compacted assemblies.

Results: 479
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Product Type Package/Case Material Thermal Conductivity Breakdown Voltage Color Minimum Operating Temperature Maximum Operating Temperature Length Width Thickness Tensile Strength Flammability Rating Series Packaging
Bergquist Company Thermal Interface Products SIL PAD, Kapton-Based, 11.5"x12" Sheet, 0.006" Thickness
355On Order
$44.74
$41.79
$39.18
$36.56
Min.: 1
Mult.: 1
Thermally Conductive Insulators Thermal Pad Non-standard Silicone Elastomer 1.1 W/m-K 6 kVAC Blue-Green - 60 C + 180 C 304.8 mm 292.1 mm 0.006 in 35 MPa K-6 / TSP K1100

Bergquist Company Thermal Interface Products Sil-Pad, 0.009" Thickness, 1.563x1.050", Sil-Pad TSP900/400, IDH 2192639
3,580On Order
$0.62
$0.566
$0.538
$0.525
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Thermal Pad Non-standard Silicone Elastomer 0.9 W/m-K 3.5 kVAC Gray - 60 C + 180 C 0.009 in 20 MPa UL 94 V-0 400 / TSP 900
Bergquist Company Thermal Interface Products Sil-Pad, 0.007" Thickness, 1 Side Adhesive, 12"x50' Roll, Sil-Pad TSP900/400
Drop Dispatch Lead Time 16 Weeks
$852.47
$795.57
Min.: 2
Mult.: 1
Gap Fillers / Gap Pads / Sheets Non-standard Silicone Elastomer Gray - 60 C + 180 C 50 ft 12 in 0.007 in UL 94 V-0 400 / TSP 900
Bergquist Company Thermal Interface Products Insulator, 11.5" x 12" Sheet, 0.006" Thickness, SIL PAD TSPK900/K-4, IDH 2191342
209On Order
$24.53
Min.: 1
Mult.: 1
Thermally Conductive Insulators Thermal Pad Non-standard Silicone Elastomer 0.9 W/m-K 6 kVAC Gray - 60 C + 180 C 0.006 in 35 MPa K-4 / TSP K900

Bergquist Company Thermal Interface Products Original Sil-Pad Material, 0.009" Thickness, 1Side Adhesive, Sil-Pad TSP900/400
Drop Dispatch Lead Time 7 Weeks
$0.593
Min.: 3,449
Mult.: 1
Gap Fillers / Gap Pads / Sheets Non-standard Silicone Elastomer 3.5 kVAC Gray - 60 C + 180 C 0.009 in 20 MPa UL 94 V-0 400 / TSP 900

Bergquist Company Thermal Interface Products Sil-Pad, 0.009" Thickness, No Adhesive, 0.75x0.8", 0.16" Diameter Hole
52Expected 2026/10/19
$1.54
$1.40
$1.36
$1.33
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Thermal Pad Non-standard Silicone Elastomer 1.2 W/m-K 4.5 kVAC Pink - 60 C + 180 C 0.23 mm 30 MPa 1000 / TSP 1200

Bergquist Company Thermal Interface Products High Performance/Reliability Insulator, Sil-Pad TSP 3500/2000, IDH 2192469
439Expected 2026/09/25
$1.60
$1.47
$1.43
$1.40
Min.: 1
Mult.: 1
Thermally Conductive Insulators Non-standard Silicone Elastomer 4 kVAC White - 60 C + 200 C 0.508 mm UL 94 V-0 2000 / TSP 3500

Bergquist Company Thermal Interface Products Insulator, 0.009" Thickness, 1 Side Adhesive, Sil-Pad TSPPP1200/Poly-Pad 1000
981Expected 2026/11/23
$1.04
$0.922
$0.897
$0.873
Min.: 1
Mult.: 1
Thermally Conductive Insulators Non-standard Silicone Elastomer 2.5 kVAC Yellow - 20 C + 150 C 0.229 mm 48 MPa 1000 / TSP PP1200

Bergquist Company Thermal Interface Products Insulator, 0.006" Thickness, SIL PAD TSPK1300/K-10, K10-03, BG80003, IDH 2192497
11Expected 2026/09/28
$2.13
$1.92
$1.87
$1.76
Min.: 1
Mult.: 1
Thermally Conductive Insulators Non-standard Silicone Elastomer 6 kVAC Brown (Beige) - 60 C + 180 C 0.006 in 35 MPa UL 94 VTM-0 K-10 / TSP K1300

Bergquist Company Thermal Interface Products Insulator, 0.006" Thickness, 19.05x12.7mm, SIL PAD TSPK1300/K-10, IDH 2167643
950Expected 2026/10/12
$0.85
$0.804
$0.744
$0.718
Min.: 1
Mult.: 1
Thermally Conductive Insulators Thermal Pad Non-standard Silicone Elastomer 1.3 W/m-K 6 kVAC Beige - 60 C + 180 C 19.05 mm 12.7 mm 0.006 in 35 MPa UL 94 VTM-0 K-10 / TSP K1300

Bergquist Company Thermal Interface Products Heat Sink Pads, Silicone Based, Thermally Conductive Tubes, IDH 2188940
675Expected 2026/10/22
$0.70
$0.621
$0.593
$0.577
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Thermal Pad Non-standard Silicone Elastomer 0.9 W/m-K 5 kVAC Gray - 60 C + 180 C 25.02 mm 13.5 mm 0.305 mm UL 94 V-0 400 / TSP T1200
Bergquist Company Thermal Interface Products Sil-Pad, 12"x12" Sheet, 0.009" Thickness, 1 Side Adhesive, TSPPP900/Poly-Pad 400
19Expected 2026/12/14
$36.40
$33.55
$31.47
$29.56
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Thermally Conductive Adhesive Non-standard Silicone Elastomer 2.5 kVAC Brown (Tan) - 20 C + 150 C 304.8 mm 304.8 mm 0.229 mm 48 MPa UL 94 V-0 400 / TSP PP900

Bergquist Company Thermal Interface Products Grease TI, 0.005" Thickness, 1.00x0.75x0.300x0.140", Sil-Pad TSPQ2000/Q-Pad 3
1,900Expected 2026/11/16
$0.40
$0.352
$0.343
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Q-Pad Grease Replacement Thermal Interface Non-standard Silicone Elastomer 2 W/m-K Black - 60 C + 180 C 25.4 mm 19.05 mm 0.127 mm 50 psi UL 94 V-0 3 / TSP Q2000

Bergquist Company Thermal Interface Products Foil-Format Grease, 0.006" Thickness, Sil-Pad TSPQ2500/Q-Pad II
83Expected 2027/02/15
$0.13
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Q-Pad Grease Replacement Thermal Interface Non-standard Silicone Elastomer Black - 60 C + 180 C 0.152 mm UL 94 V-0 II / TSP Q2500

Bergquist Company Thermal Interface Products The Original Sil-Pad Material, 0.007" Thickness, Sil-Pad TSP 900/Sil-Pad 400
1,223Expected 2026/10/08
$0.43
$0.386
$0.368
$0.356
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Non-standard Silicone Elastomer 3.5 kVAC Gray - 60 C + 180 C 0.007 in 20 MPa UL 94 V-0 400 / TSP 900
Bergquist Company Thermal Interface Products The Original Sil-Pad Material, Sil-Pad TSP 900 Series / Also Known as Bergquist Sil-Pad 400 Series Drop Dispatch Lead Time 8 Weeks
$30.37
$26.06
Min.: 30
Mult.: 1
Gap Fillers / Gap Pads / Sheets Non-standard 400 / TSP 900
Bergquist Company Thermal Interface Products Economical, High Performance Insulator, Sil-Pad TSP 1500/Sil-Pad 1500 Drop Dispatch Lead Time 12 Weeks
$6,090.19
Min.: 1
Mult.: 1
Thermally Conductive Insulators Non-standard 2 W/m-K 4 kV Green - 60 C + 200 C 0.254 mm 7 MPa UL 94 V-0 1500 / TSP 1500
Bergquist Company Thermal Interface Products Original Sil-Pad, 0.009" Thickness, Sil-Pad TSP 1200/Also Known as Sil-Pad 1000 Drop Dispatch Lead Time 8 Weeks
$0.513
$0.49
Min.: 1,826
Mult.: 1
Gap Fillers / Gap Pads / Sheets Thermally Conductive Adhesive Silicone 1.2 W/m-K 4.5 kVAC Pink - 60 C + 180 C 0.866 in 0.65 in 30 MPa UL 94 V-0 1000 / TSP 1200
Bergquist Company Thermal Interface Products Sil-Pad, 0.009" Thickness, 1 Side Adhesive, 0.75x0.5", Sil-Pad TSP900/400 Drop Dispatch Lead Time 8 Weeks
$0.297
Min.: 5,300
Mult.: 1
Gap Fillers / Gap Pads / Sheets Non-standard Silicone Elastomer 0.9 W/m-K 4.5 kVAC Gray - 60 C + 180 C 0.229 mm 20 MPa UL 94 V-0 400 / TSP 900
Bergquist Company Thermal Interface Products Sil-Pad, 0.009" Thickness, 1 Side Adhesive, 0.86x0.74", Sil-Pad TSP900/400 Drop Dispatch Lead Time 8 Weeks
$0.504
$0.48
Min.: 1,848
Mult.: 1
Gap Fillers / Gap Pads / Sheets Non-standard Silicone Elastomer 0.9 W/m-K 4.5 kVAC Gray - 60 C + 180 C 0.229 mm 20 MPa UL 94 V-0 400 / TSP 900
Bergquist Company Thermal Interface Products The Original Sil-Pad Material, Sil-Pad TSP 900 / Also Known as Sil-Pad 400 Drop Dispatch Lead Time 8 Weeks
$0.215
Min.: 9,300
Mult.: 1
Gap Fillers / Gap Pads / Sheets Non-standard Silicone Elastomer 0.9 W/m-K 4.5 kVAC Gray - 60 C + 180 C 0.229 mm 20 MPa UL 94 V-0 400 / TSP 900

Bergquist Company Thermal Interface Products Sil-Pad Material, 0.009" Thick, 1 Side Adhesive, SP400-0.009-AC-67, IDH 2474862 Drop Dispatch Lead Time 9 Weeks
$0.288
Min.: 2,978
Mult.: 1
Gap Fillers / Gap Pads / Sheets TO-220 Silicone Elastomer 0.9 W/m-K 3.5 kVAC Gray - 60 C + 180 C 0.229 mm 20 MPa UL 94 V-0 400 / TSP 900
Bergquist Company Thermal Interface Products Sil-Pad, 10"x12" Sheet, 0.020" Thickness, 1 Side Adhesive, TSPA3000/A2000
Drop Dispatch Lead Time 8 Weeks
$326.58
$300.91
$279.42
Min.: 3
Mult.: 1
Thermally Conductive Insulators Non-standard Silicone Elastomer 4 kVAC White - 60 C + 200 C 0.508 mm UL 94 V-0 A2000 / TSP A3000
Bergquist Company Thermal Interface Products Sil-Pad, 0.009" Thickness, 1 Side Adhesive, 12"x250' Roll, TSPPP900/Poly-Pad 400 Drop Dispatch Lead Time 8 Weeks
$2,444.54
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Non-standard Silicone Elastomer 2.5 kVAC Brown (Tan) - 20 C + 150 C 228.6 mm 228.6 mm 0.229 mm 48 MPa UL 94 V-0 400 / TSP PP900
Bergquist Company Thermal Interface Products Insulator, 0.009" Thickness, 12"x250' Roll, Sil-Pad TSPPP900/Poly-Pad 400 Drop Dispatch Lead Time 8 Weeks
$2,835.87
Min.: 1
Mult.: 1
Thermally Conductive Insulators Non-standard Polyester Brown (Tan) - 20 C + 150 C 356 mm 229 mm 0.229 mm UL 94 V-0 400 / TSP PP900