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Pushpin Attached Heat Sinks (with attachment tabs)

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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