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Pushpin Attached Heat Sinks (with attachment tabs)

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Pushpin Attached Heat Sinks (with attachment tabs)

Pushpin and spring combinations can be chosen to suit each particular PCB thickness and chip size.

Proven Design

Pushpins are a popular mechanical attachment, offering flexibility & reliability at reasonable cost.

pushpin spring photo 1

Flexible Design

Hole location and attachment forces can be customized for each specific application.

pushpin spring photo 2

Simple & Easy

Captive pushpins and springs allow for a simple installation. Easy!

pushpin spring photo 2

Robust

Pushpin attachment has passed all shock and vibration testing.

Attachment Force

Appropriate attachment force/pressure can be consistently generated through pushpin/spring selection.

High Performance

High performance interface materials including phase change and thermal grease can be used instead of tape or epoxy.

Reference: About Pushpin with Spring Attachment

LPDR / LPDL Series

Sparser fin pattern. For low air flow or natural convection.


	Model	Base Size (mm)	Height (mm)	Hole Pitch (mm)	PCB hole dia. (mm)	Drawing
	LPDR15	15 x 15	8, 10, 12, 15, 20	18 x 18	2.5	DXF
	LPDR15	15 x 15		18 x 18	3.175	DXF
	LPDR19	19 x 19		22 x 22	2.5	DXF
	LPDR19	19 x 19		22 x 22	3.175	DXF
	LPDR25	25 x 25	8, 10, 12, 15, 20, 25	30 x 30	2.5	DXF
	LPDR25	25 x 25	8, 10, 12, 15, 20, 25	30 x 30	3.175	DXF
	LPDR30	30 x 30	8, 10, 12, 15, 20, 25 30, 35	35 x 35	2.5	DXF
	LPDR30	30 x 30		35 x 35	3.175	DXF
	LPDR35	35 x 35		40 x 40	2.5	DXF
	LPDR35	35 x 35		40 x 40	3.175	DXF
	LPDR40	40 x 40		45 x 45	2.5	DXF
	LPDR40	40 x 40		45 x 45	3.175	DXF
	LPDR45	45 x 45		50 x 50	2.5	DXF
	LPDR45	45 x 45		50 x 50	3.175	DXF


	Model	Base Size (mm)	Height (mm)	Hole Pitch (mm)	PCB hole dia. (mm)	Drawing
	LPDL15	15 x 15	8, 10, 12, 15, 20	18 x 18	2.5	DXF
	LPDL15	15 x 15		18 x 18	3.175	DXF
	LPDL19	19 x 19		22 x 22	2.5	DXF
	LPDL19	19 x 19		22 x 22	3.175	DXF
	LPDL25	25 x 25	8, 10, 12, 15, 20, 25	30 x 30	2.5	DXF
	LPDL25	25 x 25	8, 10, 12, 15, 20, 25	30 x 30	3.175	DXF
	LPDL30	30 x 30	8, 10, 12, 15, 20, 25 30, 35	35 x 35	2.5	DXF
	LPDL30	30 x 30		35 x 35	3.175	DXF
	LPDL35	35 x 35		40 x 40	2.5	DXF
	LPDL35	35 x 35		40 x 40	3.175	DXF
	LPDL40	40 x 40		45 x 45	2.5	DXF
	LPDL40	40 x 40		45 x 45	3.175	DXF
	LPDL45	45 x 45		50 x 50	2.5	DXF
	LPDL45	45 x 45		50 x 50	3.175	DXF

UBR / UBL Series

Denser fin pattern. For forced convection high performance heat sink.


	Model	Base Size (mm)	Height (mm)	Hole Pitch (mm)	PCB hole dia. (mm)	Drawing
	UBR15	15 x 15	8, 10, 12, 15, 20	18 x 18	2.5	DXF
	UBR15	15 x 15		18 x 18	3.175	DXF
	UBR19	19 x 19		22 x 22	2.5	DXF
	UBR19	19 x 19		22 x 22	3.175	DXF
	UBR25	25 x 25	8, 10, 12, 15, 20, 25	30 x 30	2.5	DXF
	UBR25	25 x 25		30 x 30	3.175	DXF
	UBR30	30 x 30		35 x 35	2.5	DXF
	UBR30	30 x 30		35 x 35	3.175	DXF
	UBR35	35 x 35		40 x 40	2.5	DXF
	UBR35	35 x 35		40 x 40	3.175	DXF
	UBR40	40 x 40		45 x 45	2.5	DXF
	UBR40	40 x 40		45 x 45	3.175	DXF
	UBR45	45 x 45		50 x 50	2.5	DXF
	UBR45	45 x 45		50 x 50	3.175	DXF


	Model	Base Size (mm)	Height (mm)	Hole Pitch (mm)	PCB hole dia. (mm)	Drawing
	UBL15	15 x 15	8, 10, 12, 15, 20	18 x 18	2.5	DXF
	UBL15	15 x 15		18 x 18	3.175	DXF
	UBL19	19 x 19		22 x 22	2.5	DXF
	UBL19	19 x 19		22 x 22	3.175	DXF
	UBL25	25 x 25	8, 10, 12, 15, 20, 25	30 x 30	2.5	DXF
	UBL25	25 x 25		30 x 30	3.175	DXF
	UBL30	30 x 30		35 x 35	2.5	DXF
	UBL30	30 x 30		35 x 35	3.175	DXF
	UBL35	35 x 35		40 x 40	2.5	DXF
	UBL35	35 x 35		40 x 40	3.175	DXF
	UBL40	40 x 40		45 x 45	2.5	DXF
	UBL40	40 x 40		45 x 45	3.175	DXF
	UBL45	45 x 45		50 x 50	2.5	DXF
	UBL45	45 x 45		50 x 50	3.175	DXF

NR Series

For omni-directional low air flow or natural convection.


	Model	Base Size (mm)	Height (mm)	Hole Pitch (mm)	PCB hole dia. (mm)	Drawing
	NR25	25 x 25	8, 10, 12, 15, 20, 25	30 x 30	2.5	DXF
	NR25	25 x 25		30 x 30	3.175	DXF
	NR30	30 x 30		35 x 35	2.5	DXF
	NR30	30 x 30		35 x 35	3.175	DXF
	NR35	35 x 35		40 x 40	2.5	DXF
	NR35	35 x 35		40 x 40	3.175	DXF
	NR40	40 x 40		45 x 45	2.5	DXF
	NR40	40 x 40		45 x 45	3.175	DXF
	NR45	45 x 45		50 x 50	2.5	DXF
	NR45	45 x 45		50 x 50	3.175	DXF

SR Series

For omni-directional forced convection high performance heat sink.


	Model	Base Size (mm)	Height (mm)	Hole Pitch (mm)	PCB hole dia. (mm)	Drawing
	SR19	19 x 19	8, 10, 12, 15, 20	22 x 22	2.5	DXF
	SR19	19 x 19	8, 10, 12, 15, 20	22 x 22	3.175	DXF
	SR25	25 x 25	8, 10, 12, 15, 20, 25	30 x 30	2.5	DXF
	SR25	25 x 25		30 x 30	3.175	DXF
	SR30	30 x 30		35 x 35	2.5	DXF
	SR30	30 x 30		35 x 35	3.175	DXF
	SR35	35 x 35		40 x 40	2.5	DXF
	SR35	35 x 35		40 x 40	3.175	DXF
	SR40	40 x 40		45 x 45	2.5	DXF
	SR40	40 x 40		45 x 45	3.175	DXF

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