Thermal Interface Products – Mouser United Kingdom

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Tflex™ RB300 Thermal Gap Filler

Laird Tflex™ RB300 Thermal Gap Filler is an exceptionally soft gap filler pad with thermal conductivity of 1.2W/mK. This thermal conductivity enables low thermal resistance at low pressures. Laird Tflex RB300 gap filler is specially formulated to minimize the amount of silicone oil bleed in sensitive applications. This thermal gap filler is naturally tacky and requires no additional adhesive coating that can inhibit thermal performance.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) 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	Flammability Rating	Series	Packaging
Thermal Interface Products Tflex RB360,9x9IN, A18145-06 Laird Technologies 1: £26.91 24In Stock	Mfr. Part No. A18145-06 Mouser Part No 739-A18145-06	Laird Technologies	Thermal Interface Products Tflex RB360,9x9IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	24In Stock	£26.91 Quote Quote	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Gap Filler Pad	Non-standard	Ceramic Filled Silicone	1.2 W/mK	Gray	- 25 C	+ 200 C	228.6 mm	228.6 mm	0.5 mm to 5.08 mm	UL 94 V-0	Tflex RB300	Bulk
Thermal Interface Products Tflex RB330FG,9x9IN, A18145-03 Laird Technologies 1: £14.81 56In Stock	Mfr. Part No. A18145-03 Mouser Part No 739-A18145-03	Laird Technologies	Thermal Interface Products Tflex RB330FG,9x9IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	56In Stock	£14.81 £13.95 £13.14 £12.30 View £11.58 £11.03 £10.64 Quote	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Gap Filler Pad	Non-standard	Ceramic Filled Silicone	1.2 W/mK	Gray	- 25 C	+ 200 C	228.6 mm	228.6 mm	0.5 mm to 5.08 mm	UL 94 V-0	Tflex RB300	Bulk
Thermal Interface Products Tflex RB320FG,9x9IN, A18145-02 Laird Technologies 1: £13.92 67Expected 07/12/2026	Mfr. Part No. A18145-02 Mouser Part No 739-A18145-02	Laird Technologies	Thermal Interface Products Tflex RB320FG,9x9IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	67Expected 07/12/2026	£13.92 £13.12 £12.35 £11.57 £10.92	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Gap Filler Pad	Non-standard	Ceramic Filled Silicone	1.2 W/mK	Gray	- 25 C	+ 200 C	228.6 mm	228.6 mm	0.5 mm to 5.08 mm	UL 94 V-0	Tflex RB300	Bulk
Thermal Interface Products Tflex RB320,18x18IN, A18144-02 Laird Technologies 18: £38.83 Non-Stocked	Mfr. Part No. A18144-02 Mouser Part No 739-A18144-02	Laird Technologies	Thermal Interface Products Tflex RB320,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£38.83 £36.62	Min.: 18 Mult.: 18	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB340,9x9IN, A18145-04 Laird Technologies 45: £12.98 Non-Stocked	Mfr. Part No. A18145-04 Mouser Part No 739-A18145-04	Laird Technologies	Thermal Interface Products Tflex RB340,9x9IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£12.98 £12.30 £12.24	Min.: 45 Mult.: 45	Gap Fillers / Gap Pads / Sheets	Gap Filler Pad	Non-standard	Ceramic Filled Silicone	1.2 W/mK	Gray	- 25 C	+ 200 C	228.6 mm	228.6 mm	0.5 mm to 5.08 mm	UL 94 V-0	Tflex RB300	Bulk
Thermal Interface Products Tflex RB380,9x9IN, A18145-08 Laird Technologies 1: £30.82 Non-Stocked	Mfr. Part No. A18145-08 Mouser Part No 739-A18145-08	Laird Technologies	Thermal Interface Products Tflex RB380,9x9IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£30.82 £28.97 £28.96	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Gap Filler Pad	Non-standard	Ceramic Filled Silicone	1.2 W/mK	Gray	- 25 C	+ 200 C	228.6 mm	228.6 mm	0.5 mm to 5.08 mm	UL 94 V-0	Tflex RB300	Bulk
Thermal Interface Products Tflex RB3100,9x9IN, A18145-10 Laird Technologies 21: £34.84 Non-Stocked	Mfr. Part No. A18145-10 Mouser Part No 739-A18145-10	Laird Technologies	Thermal Interface Products Tflex RB3100,9x9IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£34.84 £33.68	Min.: 21 Mult.: 21	Gap Fillers / Gap Pads / Sheets	Gap Filler Pad	Non-standard	Ceramic Filled Silicone	1.2 W/mK	Gray	- 25 C	+ 200 C	228.6 mm	228.6 mm	0.5 mm to 5.08 mm	UL 94 V-0	Tflex RB300	Bulk
Thermal Interface Products Tflex RB3120,9x9IN, A18145-12 Laird Technologies 18: £40.69 Non-Stocked	Mfr. Part No. A18145-12 Mouser Part No 739-A18145-12	Laird Technologies	Thermal Interface Products Tflex RB3120,9x9IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£40.69 £39.13 £38.31	Min.: 18 Mult.: 18	Gap Fillers / Gap Pads / Sheets	Gap Filler Pad	Non-standard	Ceramic Filled Silicone	1.2 W/mK	Gray	- 25 C	+ 200 C	228.6 mm	228.6 mm	0.5 mm to 5.08 mm	UL 94 V-0	Tflex RB300	Bulk
Thermal Interface Products Tflex RB3140,9x9IN, A18145-14 Laird Technologies 15: £47.90 Non-Stocked	Mfr. Part No. A18145-14 Mouser Part No 739-A18145-14	Laird Technologies	Thermal Interface Products Tflex RB3140,9x9IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£47.90 £46.11 £45.71 Quote Quote	Min.: 15 Mult.: 15	Gap Fillers / Gap Pads / Sheets	Gap Filler Pad	Non-standard	Ceramic Filled Silicone	1.2 W/mK	Gray	- 25 C	+ 200 C	228.6 mm	228.6 mm	0.5 mm to 5.08 mm	UL 94 V-0	Tflex RB300	Bulk
Thermal Interface Products Tflex RB3160,9x9IN, A18145-16 Laird Technologies 14: £54.13 Non-Stocked	Mfr. Part No. A18145-16 Mouser Part No 739-A18145-16	Laird Technologies	Thermal Interface Products Tflex RB3160,9x9IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£54.13 £52.06 £51.69 £50.34 View Quote	Min.: 14 Mult.: 14	Gap Fillers / Gap Pads / Sheets	Gap Filler Pad	Non-standard	Ceramic Filled Silicone	1.2 W/mK	Gray	- 25 C	+ 200 C	228.6 mm	228.6 mm	0.5 mm to 5.08 mm	UL 94 V-0	Tflex RB300	Bulk
Thermal Interface Products Tflex RB3180,9x9IN, A18145-18 Laird Technologies 12: £61.07 Non-Stocked	Mfr. Part No. A18145-18 Mouser Part No 739-A18145-18	Laird Technologies	Thermal Interface Products Tflex RB3180,9x9IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£61.07 £58.94 £58.91 £56.73 View Quote	Min.: 12 Mult.: 12	Gap Fillers / Gap Pads / Sheets	Gap Filler Pad	Non-standard	Ceramic Filled Silicone	1.2 W/mK	Gray	- 25 C	+ 200 C	228.6 mm	228.6 mm	0.5 mm to 5.08 mm	UL 94 V-0	Tflex RB300	Bulk
Thermal Interface Products Tflex RB3200,9x9IN, A18145-20 Laird Technologies 11: £76.92 Non-Stocked	Mfr. Part No. A18145-20 Mouser Part No 739-A18145-20	Laird Technologies	Thermal Interface Products Tflex RB3200,9x9IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£76.92 £72.54 £72.44 View Quote	Min.: 11 Mult.: 11	Gap Fillers / Gap Pads / Sheets	Gap Filler Pad	Non-standard	Ceramic Filled Silicone	1.2 W/mK	Gray	- 25 C	+ 200 C	228.6 mm	228.6 mm	0.5 mm to 5.08 mm	UL 94 V-0	Tflex RB300	Bulk
Thermal Interface Products Tflex RB330,18x18IN, Laird Technologies A18144-03 A18144-03 Laird Technologies 14: £51.41 Non-Stocked	Mfr. Part No. A18144-03 Mouser Part No 739-A18144-03	Laird Technologies	Thermal Interface Products Tflex RB330,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£51.41 £48.48	Min.: 14 Mult.: 14	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB340,18x18IN, Laird Technologies A18144-04 A18144-04 Laird Technologies 12: £62.38 Non-Stocked	Mfr. Part No. A18144-04 Mouser Part No 739-A18144-04	Laird Technologies	Thermal Interface Products Tflex RB340,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£62.38 £58.82	Min.: 12 Mult.: 12	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB350,18x18IN, Laird Technologies A18144-05 A18144-05 Laird Technologies 10: £74.92 Non-Stocked	Mfr. Part No. A18144-05 Mouser Part No 739-A18144-05	Laird Technologies	Thermal Interface Products Tflex RB350,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£74.92 £70.66	Min.: 10 Mult.: 10	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB360,18x18IN, Laird Technologies A18144-06 A18144-06 Laird Technologies 8: £87.39 Non-Stocked	Mfr. Part No. A18144-06 Mouser Part No 739-A18144-06	Laird Technologies	Thermal Interface Products Tflex RB360,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£87.39 £82.42	Min.: 8 Mult.: 8	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB370,18x18IN, Laird Technologies A18144-07 A18144-07 Laird Technologies 7: £96.00 Non-Stocked	Mfr. Part No. A18144-07 Mouser Part No 739-A18144-07	Laird Technologies	Thermal Interface Products Tflex RB370,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£96.00 £94.18	Min.: 7 Mult.: 7	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB380,18x18IN, Laird Technologies A18144-08 A18144-08 Laird Technologies 7: £108.12 Non-Stocked	Mfr. Part No. A18144-08 Mouser Part No 739-A18144-08	Laird Technologies	Thermal Interface Products Tflex RB380,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£108.12 £106.07	Min.: 7 Mult.: 7	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB390,18x18IN, Laird Technologies A18144-09 A18144-09 Laird Technologies 6: £131.84 Non-Stocked	Mfr. Part No. A18144-09 Mouser Part No 739-A18144-09	Laird Technologies	Thermal Interface Products Tflex RB390,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£131.84 £117.79	Min.: 6 Mult.: 6	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB3100,18x18IN, Laird Technologies A18144-10 A18144-10 Laird Technologies 6: £145.07 Non-Stocked	Mfr. Part No. A18144-10 Mouser Part No 739-A18144-10	Laird Technologies	Thermal Interface Products Tflex RB3100,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£145.07 £129.61	Min.: 6 Mult.: 6	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB3110,18x18IN, Laird Technologies A18144-11 A18144-11 Laird Technologies 5: £155.97 Non-Stocked	Mfr. Part No. A18144-11 Mouser Part No 739-A18144-11	Laird Technologies	Thermal Interface Products Tflex RB3110,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£155.97 £141.37	Min.: 5 Mult.: 5	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB3120,18x18IN, Laird Technologies A18144-12 A18144-12 Laird Technologies 5: £169.02 Non-Stocked	Mfr. Part No. A18144-12 Mouser Part No 739-A18144-12	Laird Technologies	Thermal Interface Products Tflex RB3120,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£169.02 £153.20	Min.: 5 Mult.: 5	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB3130,18x18IN, Laird Technologies A18144-13 A18144-13 Laird Technologies 4: £180.44 Non-Stocked	Mfr. Part No. A18144-13 Mouser Part No 739-A18144-13	Laird Technologies	Thermal Interface Products Tflex RB3130,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£180.44 £165.00	Min.: 4 Mult.: 4	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB3140,18x18IN, Laird Technologies A18144-14 A18144-14 Laird Technologies 4: £193.34 Non-Stocked	Mfr. Part No. A18144-14 Mouser Part No 739-A18144-14	Laird Technologies	Thermal Interface Products Tflex RB3140,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£193.34 £176.80	Min.: 4 Mult.: 4	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk
Thermal Interface Products Tflex RB3150,18x18IN, Laird Technologies A18144-15 A18144-15 Laird Technologies 4: £204.07 Non-Stocked	Mfr. Part No. A18144-15 Mouser Part No 739-A18144-15	Laird Technologies	Thermal Interface Products Tflex RB3150,18x18IN, Learn More about Laird Technologies laird tflex rb300 thermal gap fillers	Datasheet	Non-Stocked	£204.07 £188.60 £188.59	Min.: 4 Mult.: 4	Gap Fillers / Gap Pads / Sheets		Non-standard										Tflex RB300	Bulk

Tflex™ RB300 Thermal Gap Filler

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Tflex™ RB300 Thermal Gap Filler

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