Thermal Interface Products

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Tflex SF7 Thermal Gap Fillers

Laird Tflex SF7 Thermal Gap Fillers are innovative, high-performing thermal materials with silicone-free construction. The silicone-free design delivers products with excellent deflection properties, minimizing pressure on components during deflection. A minimum pressure is required to achieve the lowest possible thermal resistance. These fillers offer a 0.5mm to 4mm thickness range, 7.8W/mK thermal conductivity, and 5 x 10^13 volume resistivity. Laird Tflex SF7 Thermal Gap Fillers are ideal for datacom systems, optical modules, cameras, and automotive electronics.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Package/Case	Material	Thermal Conductivity	Color	Minimum Operating Temperature	Maximum Operating Temperature	Length	Width	Thickness	Tensile Strength	Flammability Rating	Series	Packaging
Thermal Interface Products Tflex SF7 4.00 229x229mm A18843-16 Laird 1: €237.09 64In Stock	Mfr. Part No. A18843-16 Mouser Part No 739-A18843-16	Laird	Thermal Interface Products Tflex SF7 4.00 229x229mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	64In Stock	€237.09 €237.08 €214.04 Quote Quote	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	229 mm	229 mm	4 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 0.50 229x229mm A18843-02 Laird 1: €49.75 151In Stock 259Expected 19/10/2026	Mfr. Part No. A18843-02 Mouser Part No 739-A18843-02	Laird	Thermal Interface Products Tflex SF7 0.50 229x229mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	151In Stock 259Expected 19/10/2026	€49.75 €45.96 €43.83 €43.09 €40.71	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	229 mm	229 mm	0.5 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 1.50 229x229mm A18843-06 Laird 1: €104.29 22In Stock 48Expected 02/11/2026	Mfr. Part No. A18843-06 Mouser Part No 739-A18843-06	Laird	Thermal Interface Products Tflex SF7 1.50 229x229mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	22In Stock 48Expected 02/11/2026	€104.29 €95.24 €84.36	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	229 mm	229 mm	1.5 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 2.00 229x229mm A18843-08 Laird 1: €137.18 39In Stock 44Expected 19/10/2026	Mfr. Part No. A18843-08 Mouser Part No 739-A18843-08	Laird	Thermal Interface Products Tflex SF7 2.00 229x229mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	39In Stock 44Expected 19/10/2026	€137.18 €121.37 €117.37 €109.19	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	229 mm	229 mm	2 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 2.50 229x229mm A18843-10 Laird 1: €155.85 27In Stock	Mfr. Part No. A18843-10 Mouser Part No 739-A18843-10	Laird	Thermal Interface Products Tflex SF7 2.50 229x229mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	27In Stock	€155.85 €142.04 Quote Quote	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	229 mm	229 mm	2.5 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 3.00 229x229mm A18843-12 Laird 1: €178.09 15In Stock	Mfr. Part No. A18843-12 Mouser Part No 739-A18843-12	Laird	Thermal Interface Products Tflex SF7 3.00 229x229mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	15In Stock	€178.09 €166.71 Quote Quote	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	229 mm	229 mm	3 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 3.50 229x229mm A18843-14 Laird 1: €206.20 9In Stock	Mfr. Part No. A18843-14 Mouser Part No 739-A18843-14	Laird	Thermal Interface Products Tflex SF7 3.50 229x229mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	9In Stock	€206.20 €191.38 Quote Quote	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	229 mm	229 mm	3.5 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 1.00 229x229mm A18843-04 Laird 1: €75.22 128On Order	Mfr. Part No. A18843-04 Mouser Part No 739-A18843-04	Laird	Thermal Interface Products Tflex SF7 1.00 229x229mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	128On Order On Order Ship Dates Mfr. No: A18843-04 Stock: 0 On Order: 69 Expected 02/11/2026 59 Expected 30/11/2026 Factory Lead Time: 9 Weeks	€75.22 €68.21 €68.04 €62.92	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	229 mm	229 mm	1 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 0.50 457x457mm A18842-02 Laird 10: €210.24 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. A18842-02 Mouser Part No 739-A18842-02	Laird	Thermal Interface Products Tflex SF7 0.50 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 9 Weeks	€210.24 €206.17 €205.51 View Quote	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	0.5 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 0.75 457x457mm A18842-03 Laird 10: €266.35 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18842-03 Mouser Part No 739-A18842-03	Laird	Thermal Interface Products Tflex SF7 0.75 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	€266.35 €260.87	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	0.75 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 1.00 457x457mm A18842-04 Laird 10: €335.80 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. A18842-04 Mouser Part No 739-A18842-04	Laird	Thermal Interface Products Tflex SF7 1.00 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 9 Weeks	€335.80 €329.15	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	1 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 1.25 457x457mm A18842-05 Laird 10: €395.73 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18842-05 Mouser Part No 739-A18842-05	Laird	Thermal Interface Products Tflex SF7 1.25 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	€395.73	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	1.25 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 1.50 457x457mm A18842-06 Laird 10: €457.05 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18842-06 Mouser Part No 739-A18842-06	Laird	Thermal Interface Products Tflex SF7 1.50 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	€457.05	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	1.5 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 1.75 457x457mm A18842-07 Laird 10: €515.29 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18842-07 Mouser Part No 739-A18842-07	Laird	Thermal Interface Products Tflex SF7 1.75 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	€515.29	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	1.75 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 2.00 457x457mm A18842-08 Laird 10: €575.06 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. A18842-08 Mouser Part No 739-A18842-08	Laird	Thermal Interface Products Tflex SF7 2.00 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 9 Weeks	€575.06	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	2 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 2.25 457x457mm A18842-09 Laird 10: €634.43 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18842-09 Mouser Part No 739-A18842-09	Laird	Thermal Interface Products Tflex SF7 2.25 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	€634.43	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	2.25 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 2.50 457x457mm A18842-10 Laird 10: €694.08 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. A18842-10 Mouser Part No 739-A18842-10	Laird	Thermal Interface Products Tflex SF7 2.50 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 9 Weeks	€694.08	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	2.5 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 2.75 457x457mm A18842-11 Laird 10: €753.32 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18842-11 Mouser Part No 739-A18842-11	Laird	Thermal Interface Products Tflex SF7 2.75 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	€753.32	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	2.75 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 3.00 457x457mm A18842-12 Laird 10: €812.61 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18842-12 Mouser Part No 739-A18842-12	Laird	Thermal Interface Products Tflex SF7 3.00 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	€812.61	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	3 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 3.25 457x457mm A18842-13 Laird 10: €874.27 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18842-13 Mouser Part No 739-A18842-13	Laird	Thermal Interface Products Tflex SF7 3.25 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	€874.27	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	3.25 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 3.50 457x457mm A18842-14 Laird 10: €931.12 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18842-14 Mouser Part No 739-A18842-14	Laird	Thermal Interface Products Tflex SF7 3.50 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	€931.12	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	3.5 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 3.75 457x457mm A18842-15 Laird 10: €990.29 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18842-15 Mouser Part No 739-A18842-15	Laird	Thermal Interface Products Tflex SF7 3.75 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	€990.29	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	3.75 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 4.00 457x457mm A18842-16 Laird 10: €1,042.79 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. A18842-16 Mouser Part No 739-A18842-16	Laird	Thermal Interface Products Tflex SF7 4.00 457x457mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 9 Weeks	€1,042.79	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	457 mm	457 mm	4 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 0.75 229x229mm A18843-03 Laird 20: €58.92 Non-Stocked Lead-Time 6 Weeks	Mfr. Part No. A18843-03 Mouser Part No 739-A18843-03	Laird	Thermal Interface Products Tflex SF7 0.75 229x229mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 6 Weeks	€58.92 €58.18 €57.59 €57.05 View Quote	Min.: 20 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	229 mm	229 mm	0.75 mm	30 psi	UL 94 V-0	SF7	Bulk
Thermal Interface Products Tflex SF7 1.25 229x229mm A18843-05 Laird 20: €86.64 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18843-05 Mouser Part No 739-A18843-05	Laird	Thermal Interface Products Tflex SF7 1.25 229x229mm Learn More about Laird tflex sf7 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	€86.64 €85.19 €84.36 €83.54 View Quote	Min.: 20 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	7.8 W/m-K	Gray (Dark Gray)	- 65 C	+ 150 C	229 mm	229 mm	1.25 mm	30 psi	UL 94 V-0	SF7	Bulk

Tflex SF7 Thermal Gap Fillers

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