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HOME > Products > Electronic material > Aluminum PWB material > Resin insulation type

Electronic material

Aluminum base PWB material / Resin insulation type

Line-ups ( )=Thermal conductivity

 

AC-7004

▲AC-7004 (2.5W/mK)

 

AC-7200TY

▲AC-7200TY (5.0W/mK)

Material composition

 

material composition

Standard specification  

 

Product code Dimension (mm)

AC-7004C

 

AC-7004TC

 

AC-7200TY

510mm × 510mm

 

340mm × 510mm

         Product of customized dimension is also negotiable

 

Thickness

Product code

Nominal thiclness

of

Insulation layer

(μm)

Copper foil

(μm)

Aluminum plate

(mm)

Thickness and Tolerance of

Insulation layer

(μm)

AC-7004C

AC-7004TC

80 / 120 35/(70)/(105) 1.0 / 1.5 / 2.0 80±15 / 120±20
AC-7200TY 120 35 / 70
1.0 / 1.5 / 2.0
120±20

         Product of special thickness is also negotiable

General properties of Insulating layer
Test item Unit Treatment AC-7004 AC-7200TY
Thickness of insulation layer μm - 80/120 120
Halogen free compliance - - Yes Yes
Peel strength kN/m 35μm 1.5 1.2
Glass transition temperature (TMA) 182 200
Coefficient of thermal expansion ppm/℃ α1 27 6
α2 48 36

Thermal conductivity

(Laser flash method)

W/mK A 2.5 5.0
Handleability -

-

Good Excellent
Breakdown voltage kV

Vertical to layer

in oil

4< 4<
Solder limit sec

260℃

Float

300< 300<
Volume resistivity MΩm C-96/20/65 5.0×106 6.1×106
Surface resistance MΩ C-96/20/65 1.0×109 2.0×108

 

The various above-mentioned data is measured value , and is not guaranteed performance.

 

AC-7004 UL recognized specification (Excerpt)

Minimum

thickness
(mm)

UL94
flame

class

R.T.I.
(℃)

HWI

HAI

HVTR

CTI

Direct

support

Electrical

Mechanical

0.995

94V-0

90

90

0

0

-

0

YES

 

AC-7200TY  Insulation reliability

(Insulation layer=120μm)

 

The below graph shows result of breakdown voltage test.

 

breakdown voltage

 

 

Test method:JIS C 2110

 Step up voltage at a rate of 500V a second up to breakdown.

Test piece size (Thickness)

 Aluminum plate=1.5mm,  Insulation layer=60/80/120μm,  Cu foil=35μm

Test condition

 Positive electrode=Alumimun plate  Negative electrode=Cu foil(25mmφ)

 Impressed current =AC  Leakage current=10mA

 

 

 

Long-term thermal resistance

long-term thermal resistance