HEATSINK TECHNOLOGY

PLATE FIN HEATSINK

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What is a Plate Fin…

WHAT IS A PLATE FIN HEATSINK?

A Plate Fin Heatsink extracts heat by convection, and uses straight fins that run the entire length to maximize the surface area of the heatsink. The large fins create heat spreading so that more energy can be removed at the same temperature difference. A variation of the straight fin heat sink is a cross cut heat sink where the straight fin heat sink is cut at regular intervals. A simple plate fin heatsink has seven independent geometric parameters that can be varied in any design: fin thickness, fin height, fin length, fin spacing, base length, base width, and thickness of the base plate.

A great resource for estimating the Plate Fin Heatsink Thermal Resistance can be found at this link. In this article it is shown that in order to select the appropriate heatsink it is important to know the maximum allowable heatsink thermal resistance. By knowing the case temperature, the power dissipation, and the thermal resistance at the module-to-heat sink interface the maximum allowable temperature at the heat sink attachment surface can be determined. A similar article shows how to estimate the pressure drop on a Plate Fin Heatsink, and can be found at this link.

Plate fin Heatsinks can be manufactured in various ways such as machined, extruded, cast, stamped, folded, or skived. Plate fin heatsinks are also used on the outside of mechanical housings and enclosures as they provide a simple solution that create no noise, or power consumption.

As a plate-fin heatsink manufacturer, we specialize in creating highly efficient cooling solutions for various industries. Plate-fin heatsinks are ideal for applications that require effective heat dissipation in limited space and are commonly used in electronics, aerospace, and automotive sectors. Our skilled engineers and technicians work closely with our clients to design and manufacture custom heatsinks that meet their needs and requirements. With years of experience and state-of-the-art technology, we are committed to delivering high-quality products that exceed our client’s expectations.

BGA Aluminum plate fin Heatsinks

Radian’s BGA Aluminum plate fin Heatsinks are high efficiency heatsink cooling products which are ideal for linear air-flow environments. A BGA Aluminum Plate Fin Heatsink extracts heat by convection, and uses straight fins that run the entire length to maximize the surface area of the heatsink. These BGA Heatsink devices mount with EZ Snap™ mounting clips and / or thermal tape to provide optimum cooling for various package sizes and airflow. These off-the-shelf, high efficiency heatsink solutions are easy to install and require no special board modifications or complex assemblies. The heatsinks are constructed of extruded aluminum for optimum heat transfer. Designed specifically for BGAs and other surface mount packages then finished with black anodize plating. The BGA heatsink size is matched to the nominal size of the chip, and custom heatsinks may be available for chip sizes not shown.

When selecting the correct clip, it is important to get a clip that is within the range of the nominal chip height. This is the chip height without the solder balls. If the nominal is not available on the chip datasheet just use (max + min)/2. Where a particular chip height is not available, the base of the BGA heatsink can be reduced to provide correct fitment. If there are any issues please contact our team to verify fitment size.

EZ SNAP MOUNTING GUIDE

BGA Platefin Heatsinks

Radian has a wide range of BGA Aluminum Plate Fin Heatsinks that are available to ship within a few days. If a part or BGA heatsink size is not available online we can usually offer an alternative part, or modify a part in stock to fit your needs. For lower volumes, we can also precision machine a heatsink to fit our EZ-snap clip, and for larger volumes an extrusion can be made for your exact requirements. Please contact us if you need help selecting the correct solution.

Radian Part Number	Type	Material	Style	Length (mm)	Width (mm)	Height (mm)	Theta SA (°C/W)at 200LFM	Theta SA (°C/W) at 400LFM	Theta SA (°C/W) at 600LFM	Store
INH27001-15/2.6	BGA	Aluminum	Plate Fin	22.1	26.9	14.6	4.2	2.6	2.1	View
INH27001-18/2.6	BGA	Aluminum	Plate Fin	22.1	26.9	17.6	3.5	2.2	1.8	View
INH27001-23/2.6	BGA	Aluminum	Plate Fin	22.1	26.9	22.9	2.7	1.7	1.4	View
INH33001-15/2.6	BGA	Aluminum	Plate Fin	27.2	32.3	14.6	3.1	1.9	1.5	View
INH33001-18/2.6	BGA	Aluminum	Plate Fin	27.2	32.3	17.6	2.6	1.6	1.3	View
INH33001-23/2.6	BGA	Aluminum	Plate Fin	27.2	32.3	22.9	2	1.3	1	View
INH35001-15/2.6	BGA	Aluminum	Plate Fin	29	34.8	14.6	2.9	1.7	1.3	View
INH35001-18/2.6	BGA	Aluminum	Plate Fin	29	34.8	17.6	2.4	1.4	1.1	View
INH35001-23/2.6	BGA	Aluminum	Plate Fin	29	34.8	22.9	1.9	1.2	0.9	View
INH40001-15/2.6	BGA	Aluminum	Plate Fin	34.5	39.1	14.6	2.5	1.5	1.1	View
INH40001-18/2.6	BGA	Aluminum	Plate Fin	34.5	39.1	17.6	2.1	1.3	1	View
INH40001-23/2.6	BGA	Aluminum	Plate Fin	34.5	39.1	22.9	1.7	1	0.8	View
INL19001-10/1.7	BGA	Aluminum	Plate Fin	19	19	9.5	5.71	4.17	3.57	View
INL19001-13/1.7	BGA	Aluminum	Plate Fin	19	19	12.7	5.15	3.72	3.16	View
INL19001-6/1.7	BGA	Aluminum	Plate Fin	19	19	6.3	6.26	4.58	3.97	View
INL21001-10/1.7	BGA	Aluminum	Plate Fin	21	21	9.5	5.38	3.91	3.32	View
INL21001-13/1.7	BGA	Aluminum	Plate Fin	21	21	12.7	4.83	3.43	2.91	View
INL21001-6/1.7	BGA	Aluminum	Plate Fin	21	21	6.3	6.08	4.41	3.79	View
INL23001-10/1.7	BGA	Aluminum	Plate Fin	23	23	9.5	5.01	3.67	3.06	View
INL23001-13/1.7	BGA	Aluminum	Plate Fin	23	23	12.7	4.25	3.09	2.61	View
INL23001-6/1.7	BGA	Aluminum	Plate Fin	23	23	6.3	5.77	4.28	3.63	View
INL24001-10/1.7	BGA	Aluminum	Plate Fin	24	24	9.5	4.72	3.45	3.83	View
INL24001-13/1.7	BGA	Aluminum	Plate Fin	24	24	12.7	4.05	2.89	2.39	View
INL25001-10/1.7	BGA	Aluminum	Plate Fin	25	25	9.5	4.57	3.18	2.63	View
INL25001-13/1.7	BGA	Aluminum	Plate Fin	25	25	12.7	3..8	2.64	2.15	View
INL25001-6/1.7	BGA	Aluminum	Plate Fin	25	25	6.3	5.32	3.79	3.15	View
INL27001-10/1.7	BGA	Aluminum	Plate Fin	27	27	9.5	4.25	3	2.4	View
INL27001-13/1.7	BGA	Aluminum	Plate Fin	27	27	12.7	3.5	2.4	1.86	View
INL27001-6/1.7	BGA	Aluminum	Plate Fin	27	27	6.3	4.94	3.58	2.99	View
INL29001-10/1.7	BGA	Aluminum	Plate Fin	29	29	9.5	3.95	2.66	2.18	View
INL29001-13/1.7	BGA	Aluminum	Plate Fin	29	29	12.7	3.32	2.2	1.72	View
INL29001-6/1.7	BGA	Aluminum	Plate Fin	29	29	6.3	4.62	3.23	2.73	View
INL31001-10/1.7	BGA	Aluminum	Plate Fin	31	31	9.5	3.72	2.55	2.02	View
INL31001-13/1.7	BGA	Aluminum	Plate Fin	31	31	12.7	3.1	2.02	1.56	View
INL31001-6/1.7	BGA	Aluminum	Plate Fin	31	31	6.3	4.38	3.13	2.58	View
INL33001-10/1.7	BGA	Aluminum	Plate Fin	33	33	9.5	3.43	2.25	1.72	View
INL33001-13/1.7	BGA	Aluminum	Plate Fin	33	33	12.7	2.79	1.73	1.28	View
INL33001-6/1.7	BGA	Aluminum	Plate Fin	33	33	6.3	4.12	2.83	2.27	View
INL35001-10/1.7	BGA	Aluminum	Plate Fin	35	35	9.5	3.15	2.01	1.49	View
INL35001-13/1.7	BGA	Aluminum	Plate Fin	35	35	12.7	2.5	1.56	1.1	View
INL35001-6/1.7	BGA	Aluminum	Plate Fin	35	35	6.3	3.85	2.48	1.92	View
INL37.5001-10/1.7	BGA	Aluminum	Plate Fin	37.5	37.5	9.5	2.9	1.75	1.34	View
INL37.5001-13/1.7	BGA	Aluminum	Plate Fin	37.5	37.5	12.7	2.27	1.31	0.98	View
INL40001-10/1.7	BGA	Aluminum	Plate Fin	40	40	9.5	2.73	1.68	1.22	View
INL40001-13/1.7	BGA	Aluminum	Plate Fin	40	40	12.7	2.16	1.25	0.88	View
INL40001-6/1.7	BGA	Aluminum	Plate Fin	40	40	6.3	3.26	2.08	1.59	View
INL42.5001-10/1.7	BGA	Aluminum	Plate Fin	42.5	42.5	9.5	2.61	1.61	1.18	View
INL42.5001-13/1.7	BGA	Aluminum	Plate Fin	42.5	42.5	12.7	2.14	1.2	0.83	View
INL42.5001-6/1.7	BGA	Aluminum	Plate Fin	42.5	42.5	6.3	3.15	2.01	1.54	View
INL45001-10/1.7	BGA	Aluminum	Plate Fin	45	45	9.5	2.45	1.47	1.12	View
INL45001-13/1.7	BGA	Aluminum	Plate Fin	45	45	12.7	1.97	1.11	0.8	View
INL45001-6/1.7	BGA	Aluminum	Plate Fin	45	45	6.3	2.93	1.87	1.44	View

DC Platefin Heatsink

Radian’s DC Platefin Heatsink designs are constructed of die cast aluminum and are ideal for omni directional airflow or convection environments. These off-the-shelf, high efficiency heatsink solutions are easy to install with four M3 mounting screws ranging from 4-8mm in length, and can also be used with pushpins.

These Plate Fin heatsinks may be packaged with optional hard-ware mounting kits and thermal interface pads to facilitate installation of the heatsinks directly to the dc/dc converters.

Features:

High efficiency round pin design provide low pressure-drop characteristics
Constructed of aluminum for optimum heat transfer
Plate Fin designs are ideal for omni directional airflow environment
Designed specifically for DC/DC Converters and other baseplate packages
Finished with black anodize plating
Selected hardware mounting kit and thermal interface pad options are pre-packaged at the factory