News

Alpha has expanded its wide range of off-the-shelf products to meet customer requirements.

Alpha has added a new series of push pins, designed for use with a 2.50mm hole in the PCB. The smaller hole size will take up less PCB real estate, reducing issues related to PCB routing and conflicts. Alpha has also added a new series of heat sinks that will utilize these 2.50mm push pins for attachment.

The new push pins will be available in 6 different lengths. The appropriate attachment force/pressure can be generated through push pin/spring selection. Selection will depend on PCB thickness, chip height, package size, etc.. The simple installation process will be the same as the existing pushpins.

We standardized 2 types of heatsinks, the LPD and UB series for attachment with these 2.5mm pins. The LPD series is suitable for low airflow and natural convection applications, and the UB series is designed for forced convection only. Please refer to the following for additional details and specifications.

New Push Pins:

Model name	PCB Hole Dia. (mm)	Pushpin length (mm)
PIP2.5x9	2.50	9
PIP2.5x10		10
PIP2.5x11		11
PIP2.5x12		12
PIP2.5x14		14
PIP2.5x18		18

New Push Pin attached Heat Sinks with Attachment Tab:

Model name	PCB Hole Dia. (mm)	Base size (mm)	Height (mm)	Hole pitch (mm)
LPDR19, LPDL19, UBL19, UBR19	2.50	19 x 19	8 - 20	22 x 22
LPDL25, LPDR25 UBL25, UBR25, NR25, SR25		25 x 25	8 - 25	30 x 30
LPDL30, LPDR30		30 x 30	8 - 35	35 x 35
UBL30, UBR30, NR30, SR30			8 - 25
LPDL35, LPDR35		35 x 35	8 - 35	40 x 40
UBL35, UBR35, NR35, SR35			8 - 25
LPDL40, LPDR40		40 x 40	8 - 35	45 x 45
UBL40, UBR40, NR40, SR40			8 - 25
LPDL45, LPDR45		45 x 45	8 - 35	50 x 50
UBL45, UBR45, NR45			8 - 25

New Push Pin attached Heat Sinks (No Attachment Tab):

Model name	PCB Hole Dia. (mm)	Base size (mm)	Height (mm)	Hole pitch (mm)
LPDM30, LPDH30, UBM30, UBH30	2.50	30 x 30	8 - 25	23 x 23
LPDM35, LPDH35, UBM35, UBH35		35 x 35		28 x 28

Shipments began on Apr 15th of 2019.