Thermal Interface Products – Mouser Singapore

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Tflex SF4 Thermal Gap Fillers

Laird Tflex SF4 Thermal Gap Fillers are silicon-free and offer a 0.5mm to 4mm thickness range with 4.0W/mK thermal conductivity. These gap fillers offer excellent deflection properties, minimizing pressure on components during deflection. A minimal amount of pressure is required to reach the lowest possible thermal resistance. Laird Tflex SF4 Thermal Gap Fillers are designed for datacom systems, automotive electronics, optical modules, and cameras.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) 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 SF4 1.00 457x457mm A18840-04 Laird 1: $344.95 8In Stock	Mfr. Part No. A18840-04 Mouser Part No 739-A18840-04	Laird	Thermal Interface Products Tflex SF4 1.00 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	8In Stock	$344.95 $326.71 $316.44 $313.96 View Quote	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	1 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 1.50 229x229mm A18841-06 Laird 1: $104.15 27In Stock	Mfr. Part No. A18841-06 Mouser Part No 739-A18841-06	Laird	Thermal Interface Products Tflex SF4 1.50 229x229mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	27In Stock	$104.15 $96.38 $91.64 $90.51	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	229 mm	229 mm	1.5 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 2.50 229x229mm A18841-10 Laird 1: $156.43 34In Stock	Mfr. Part No. A18841-10 Mouser Part No 739-A18841-10	Laird	Thermal Interface Products Tflex SF4 2.50 229x229mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	34In Stock	$156.43 $147.68 $140.39 $135.39	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	229 mm	229 mm	2.5 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 3.00 229x229mm A18841-12 Laird 1: $182.73 13In Stock	Mfr. Part No. A18841-12 Mouser Part No 739-A18841-12	Laird	Thermal Interface Products Tflex SF4 3.00 229x229mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	13In Stock	$182.73 $168.12 $164.78 $157.46	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	229 mm	229 mm	3 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 3.50 229x229mm A18841-14 Laird 1: $210.07 15In Stock	Mfr. Part No. A18841-14 Mouser Part No 739-A18841-14	Laird	Thermal Interface Products Tflex SF4 3.50 229x229mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	15In Stock	$210.07 $195.43 $189.18 Quote Quote	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	229 mm	229 mm	3.5 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 4.00 229x229mm A18841-16 Laird 1: $235.82 23In Stock	Mfr. Part No. A18841-16 Mouser Part No 739-A18841-16	Laird	Thermal Interface Products Tflex SF4 4.00 229x229mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	23In Stock	$235.82 $219.18 $213.64 Quote Quote	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	229 mm	229 mm	4 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 0.50 229x229mm A18841-02 Laird 1: $57.12 21In Stock	Mfr. Part No. A18841-02 Mouser Part No 739-A18841-02	Laird	Thermal Interface Products Tflex SF4 0.50 229x229mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	21In Stock	$57.12 $53.62 $50.08 $48.84	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	229 mm	229 mm	0.5 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 2.00 229x229mm A18841-08 Laird 1: $130.02 13In Stock	Mfr. Part No. A18841-08 Mouser Part No 739-A18841-08	Laird	Thermal Interface Products Tflex SF4 2.00 229x229mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	13In Stock	$130.02 $118.99 $106.80	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	229 mm	229 mm	2 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 1.00 229x229mm A18841-04 Laird 1: $78.04 39On Order	Mfr. Part No. A18841-04 Mouser Part No 739-A18841-04	Laird	Thermal Interface Products Tflex SF4 1.00 229x229mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	39On Order On Order Ship Dates Mfr. No: A18841-04 Stock: 0 On Order: 19 Expected 16/11/2026 20 Expected 4/1/2027 Factory Lead Time: 9 Weeks	$78.04 $74.38 $69.36 $67.59	Min.: 1 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	229 mm	229 mm	1 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 0.50 457x457mm A18840-02 Laird 10: $224.24 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. A18840-02 Mouser Part No 739-A18840-02	Laird	Thermal Interface Products Tflex SF4 0.50 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 9 Weeks	$224.24 $218.12 View Quote	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	0.5 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 0.75 457x457mm A18840-03 Laird 10: $269.73 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-03 Mouser Part No 739-A18840-03	Laird	Thermal Interface Products Tflex SF4 0.75 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$269.73 $260.24 View Quote	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	0.75 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 1.25 457x457mm A18840-05 Laird 10: $373.76 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-05 Mouser Part No 739-A18840-05	Laird	Thermal Interface Products Tflex SF4 1.25 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$373.76	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	1.25 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 1.50 457x457mm A18840-06 Laird 10: $431.16 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-06 Mouser Part No 739-A18840-06	Laird	Thermal Interface Products Tflex SF4 1.50 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$431.16	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	1.5 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 1.75 457x457mm A18840-07 Laird 10: $488.51 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-07 Mouser Part No 739-A18840-07	Laird	Thermal Interface Products Tflex SF4 1.75 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$488.51	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	1.75 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 2.00 457x457mm A18840-08 Laird 10: $545.89 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-08 Mouser Part No 739-A18840-08	Laird	Thermal Interface Products Tflex SF4 2.00 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$545.89	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	2 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 2.25 457x457mm A18840-09 Laird 10: $603.28 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-09 Mouser Part No 739-A18840-09	Laird	Thermal Interface Products Tflex SF4 2.25 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$603.28	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	2.25 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 2.50 457x457mm A18840-10 Laird 10: $660.58 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-10 Mouser Part No 739-A18840-10	Laird	Thermal Interface Products Tflex SF4 2.50 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$660.58	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	2.5 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 2.75 457x457mm A18840-11 Laird 10: $718.03 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-11 Mouser Part No 739-A18840-11	Laird	Thermal Interface Products Tflex SF4 2.75 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$718.03	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	2.75 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 3.00 457x457mm A18840-12 Laird 10: $775.34 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-12 Mouser Part No 739-A18840-12	Laird	Thermal Interface Products Tflex SF4 3.00 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$775.34	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	3 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 3.25 457x457mm A18840-13 Laird 10: $832.73 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-13 Mouser Part No 739-A18840-13	Laird	Thermal Interface Products Tflex SF4 3.25 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$832.73	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	3.25 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 3.50 457x457mm A18840-14 Laird 10: $890.15 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-14 Mouser Part No 739-A18840-14	Laird	Thermal Interface Products Tflex SF4 3.50 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$890.15	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	3.5 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 3.75 457x457mm A18840-15 Laird 10: $947.48 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-15 Mouser Part No 739-A18840-15	Laird	Thermal Interface Products Tflex SF4 3.75 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$947.48	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	3.75 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 4.00 457x457mm A18840-16 Laird 10: $1,005.28 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18840-16 Mouser Part No 739-A18840-16	Laird	Thermal Interface Products Tflex SF4 4.00 457x457mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$1,005.28	Min.: 10 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	457 mm	457 mm	4 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 0.75 229x229mm A18841-03 Laird 20: $61.80 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18841-03 Mouser Part No 739-A18841-03	Laird	Thermal Interface Products Tflex SF4 0.75 229x229mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$61.80 $61.49 $60.89 $60.14 Quote Quote	Min.: 20 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	229 mm	229 mm	0.75 mm	30 psi	UL 94 V-0	SF4	Bulk
Thermal Interface Products Tflex SF4 1.25 229x229mm A18841-05 Laird 20: $85.61 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. A18841-05 Mouser Part No 739-A18841-05	Laird	Thermal Interface Products Tflex SF4 1.25 229x229mm Learn More about Laird tflex sf4 thermal gap fillers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$85.61 $84.82 $83.98 $83.19 View Quote	Min.: 20 Mult.: 1	Gap Fillers / Gap Pads / Sheets	Silicone-Free	Non-standard	Silicone	4 W/m-K	Gray (Light Gray)	- 65 C	+ 150 C	229 mm	229 mm	1.25 mm	30 psi	UL 94 V-0	SF4	Bulk

Tflex SF4 Thermal Gap Fillers

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Tflex SF4 Thermal Gap Fillers

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