Online Catalog

Pushpin Attached Heat Sinks (with attachment tabs)

Pushpin Attached Heat Sinks (with attachment tabs)
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.
catalog 3D CAD RoHS REACH
LPDR Series Heat Sink Model Base Size
(mm)
Height
(mm)
Hole Pitch
(mm)
PCB hole dia.
(mm)
Drawing
LPDR19 19 x 19 8, 10, 12, 15, 20 22 x 22 2.5 DXF
3.175 DXF
LPDR25 25 x 25 8, 10, 12, 15, 20, 25 30 x 30 2.5 DXF
3.175 DXF
LPDR30 30 x 30 8, 10, 12, 15, 20, 25
30, 35
35 x 35 2.5 DXF
3.175 DXF
LPDR35 35 x 35 40 x 40 2.5 DXF
3.175 DXF
LPDR40 40 x 40 45 x 45 2.5 DXF
3.175 DXF
LPDR45 45 x 45 50 x 50 2.5 DXF
3.175 DXF

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

UBR / UBL Series
  • Denser fin pattern. For forced convection high performance heat sink.
catalog 3D CAD RoHS REACH
UBR Series Heat Sink Model Base Size
(mm)
Height
(mm)
Hole Pitch
(mm)
PCB hole dia.
(mm)
Drawing
UBR19 19 x 19 8, 10, 12, 15, 20 22 x 22 2.5 DXF
3.175 DXF
UBR25 25 x 25 8, 10, 12, 15, 20, 25 30 x 30 2.5 DXF
3.175 DXF
UBR30 30 x 30 35 x 35 2.5 DXF
3.175 DXF
UBR35 35 x 35 40 x 40 2.5 DXF
3.175 DXF
UBR40 40 x 40 45 x 45 2.5 DXF
3.175 DXF
UBR45 45 x 45 50 x 50 2.5 DXF
3.175 DXF

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

NR Series
  • For omni-directional low air flow or natural convection.
catalog 3D CAD RoHS REACH
NR Series Heat Sink 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
3.175 DXF
NR30 30 x 30 35 x 35 2.5 DXF
3.175 DXF
NR35 35 x 35 40 x 40 2.5 DXF
3.175 DXF
NR40 40 x 40 45 x 45 2.5 DXF
3.175 DXF
NR45 45 x 45 50 x 50 2.5 DXF
3.175 DXF

SR Series
  • For omni-directional forced convection high performance heat sink.
catalog 3D CAD RoHS REACH
SR Series Heat Sink Model Base Size
(mm)
Height
(mm)
Hole Pitch
(mm)
PCB hole dia.
(mm)
Drawing
SR25 25 x 25 8, 10, 12, 15, 20, 25 30 x 30 2.5 DXF
3.175 DXF
SR30 30 x 30 35 x 35 2.5 DXF
3.175 DXF
SR35 35 x 35 40 x 40 2.5 DXF
3.175 DXF
SR40 40 x 40 45 x 45 2.5 DXF
3.175 DXF

Contact | © 2008 Alpha Company Ltd.