1100 Aluminum Sheet for PCB (Printed Circuit Board)

1100 aluminum alloy is a commercially pure aluminum with excellent thermal conductivity, corrosion resistance, and good machinability. Its strength is relatively low, making it suitable for applications that do not require high strength but need good thermal management performance. In printed circuit board (PCB) manufacturing, 1100 aluminum sheet is often used as the PCB substrate or backplane, particularly in LED lighting and high-power electronic devices, as a heat dissipation solution. The excellent thermal conductivity of this alloy helps reduce the operating temperature of electronic components, extending their lifespan.

PCB (Printed Circuit Board) 1100 Aluminum Sheet Characteristics

Excellent Thermal Conductivity: 1100 aluminum alloy has a high thermal conductivity, making it an ideal choice for heat dissipation management in PCB applications. By improving heat transfer, it can effectively reduce the temperature of electronic components, ensuring efficient operation.
Outstanding Corrosion Resistance: Due to its high purity, 1100 aluminum has excellent corrosion resistance, maintaining long-term stability in humid or corrosive environments. This property is especially important for electronic devices that need to operate reliably over extended periods.
Good Machinability: 1100 aluminum is easy to form, machine, and weld. Its excellent machinability allows for efficient completion of various processing operations such as stamping, cutting, and drilling during manufacturing.
Low Strength: Compared to other aluminum alloys, 1100 aluminum has lower strength, making it suitable for applications that do not require high strength but need good heat dissipation and machinability.

1100 Aluminum Sheet for PCB (Printed Circuit Board) Specifications

Specification
Alloy	1100
Temper	H18, H19 etc.
Thickness	0.12-0.25mm
Length	790-1300mm or production by roll
Width	1244/1245mm etc. and customizable
Tolerance	Thickness(mm): +/-5% * Width(mm): +0.5 /-0mm Length(mm): +0.5/-0mm Diagonal line (mm):≤0.5mm
Lubricant coating	resin lubricant, liquid lubricant, solid lubricant, oily lubricant etc.
Standard	ASTM B209, EN 485, ISO9001, SGS, ROHS

1100 Aluminum Sheet Applications in PCB

PCB Substrate: 1100 aluminum is widely used as the substrate or backplane in PCBs, especially in high-power electronic devices (such as LED lighting, power electronics, etc.). 1100 aluminum effectively disperses and dissipates the heat generated by electronic components, preventing heat accumulation and enhancing the stability and lifespan of the circuits.
Thermal Management: Heat generation in PCBs primarily comes from the operation of high-power components. The high thermal conductivity of 1100 aluminum allows heat to be quickly transferred away from electronic components, preventing overheating and component damage. This property is especially important in high-density circuit boards.

Application Area	Specific Use	Features and Advantages
LED Lighting	1100 aluminum sheet is used as a heat dissipation substrate for LED lighting fixtures, helping to dissipate heat and extend the lifespan of LEDs.	Improves heat dissipation of LEDs, preventing overheating
		Extends the lifespan of LED lighting fixtures
		Enhances the efficiency and stability of the lighting fixtures, preventing failure due to overheating
Power Equipment	1100 aluminum sheet is used as a heat dissipation backplane or substrate in power supplies and power equipment, managing the heat generated by high-power devices.	High thermal conductivity, effectively reduces equipment temperature
		Improves equipment reliability
		Maintains proper operating temperature, ensuring normal operation of the equipment
Drilling Covers	1100 H18 aluminum sheet is widely used as a drilling cover in PCBs, reducing drill bit temperature, minimizing drill wear, and improving drilling precision.	High thermal conductivity, significantly reduces drill bit temperature (from 200°C to 100°C)
		Improves drill bit and PCB stability
		Improves hole wall quality, reduces burrs

PCB (Printed Circuit Board) 1100 Aluminum Sheet Advantages

Thermal Conductivity: 1100 H18 aluminum sheet effectively absorbs and transfers the heat generated by drill bits during PCB drilling, reducing the temperature rise between the drill bit and PCB, preventing the PCB substrate from melting, and thus minimizing contamination of the drill bit and hole walls.
Rigidity and Precision: 1100 H18 aluminum sheet has good rigidity, allowing it to closely fit the PCB surface, reducing burrs entering the holes, and ensuring high-precision drilling quality. Additionally, its rigidity helps absorb shock from the drill bit, maintaining drill bit stability during drilling and improving drilling precision.
Improved Hole Wall Quality: Due to the aluminum sheet's thermal conductivity, drill bits do not generate excessive heat during drilling, preventing hole wall deformation or buildup caused by overheating, thus enhancing hole wall quality.

As a high thermal conductivity, corrosion-resistant, and easy-to-process material, 1100 aluminum sheet plays a crucial role in PCB manufacturing. It is not only used as a heat dissipation substrate in high-power electronic devices but also helps improve drilling quality and precision in the PCB drilling process with its excellent thermal conductivity. Its low-strength characteristics make it an ideal choice for applications that do not require high strength, while its high thermal conductivity makes it a key material for thermal management.

1100 Aluminum Sheet for PCB (Printed Circuit Board) Chemical Composition

Property	1100
Si	0.95
Fe	0.95
Cu	0.05-0.20
Mn	0.05
Mg	-
Cr	-
Ni	-
Zn	0.10
V	-
Ti	-
Zr	0.05
Other: single	0.15
Other: total	-
AL	99.00

1100 Aluminum Sheet for PCB (Printed Circuit Board) Mechanical Property

Alloy	Temper	Thickness (mm)	Tensile strength (Mpa)	Yield strength (Mpa)	Elongation (%)
			standard value	standard value	A	A50mm
			Not less than
1100	H18	0.12-0.20	140	-	-	-
		0.20-0.25	150	-	-	1