Thermal Conductive Metal Board

Aluminum board excellent in thermal dissipation, an alternative to glass epoxy circuit boards.

Outline

One of the key issues when designing more compact and high-performance electronic devices is "how much heat produced from chips can be dissipated". For this reason, printed circuit boards that effectively dissipat es heat are demand ed , and "metal boards" with good thermal conductivity came to attention and used as an alternative to conventional glass epoxy circuit boards. Nitto Shinko's aluminum boards are widely used for intelligent power module (IPM) board, which is a "power part" that converts commercial electrical current to direct current, then to variable voltage and frency, combined with the "drive control part" that controls motor speed .

Features

• Excellent thermal conductivity.
• Excellent solder dip resistance (330°C×2min or more ).
• Flame-retardant ( UL-94VO certifi ed ).
• Excellent voltage endurance .

Structure

Applications

• F or power module boards (power transistors, inverters, thyristors).
• For switching power board.
• For car electrical system board.
• F or LED board.

Specifications

Structure	-	SL-AC		SL-AC(L)	SL-AC-H		SL-AC-H(L)
	Copper Foil [μm]	35	105			70	105	70
	Insulating Layer [μm]	80	125	100	125	150	125	150
	Aluminum Thickness [μm]	1.0	2.0
Breakdown voltage	[kV]	8.0	12.0	10.0	8.0	9.0	7.5	8.0
One-minute withstand voltage	[kV]	5.5	9.0	6.5		7.0	4.5	5.0
Dielectric constant (1MHz)	-	4.5		4.6	7.2		7.5
Thermal resistance	C/W	0.52	0.80	0.48	0.55	0.65	0.35	0.43
Thermal conductivity	W/mk	1.0		1.8	1.9		3.5

[Remarks]

The above values are sample observed values, not the guaranteed performance .