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No.

Item

Units

Value

FR4 Prats

1

Applicable Standards

—

NEMA LI 1-1998

2

Density

g/cm³

1.80～2.00

3

Min. Flexural,Thick 0.5″

Lengthwise:

Crosswise:

ksi

45

40

4

Min.Izod Impact Strengt,Thick 0.5″

Lengthwise:

Crosswise:

Ft-lb/in

(notch)

7.0

5.5

5

Min. Insulation Resistance

C-96/35/90

Ω

2×10¹¹

6

Max. Permittivity,Thick 0.5″

A

D-24/23

—

5.2

5.4

7

Max. Dissipation Factor,Thick 0.5″

A

D-24/23

—

0.025

0.035

8

Min. Breakdown Voltage,Thick 0.5″

A

D-48/50

kV

45

40

9

Min. Bonding Strength,Thick 0.5″

A

D-48/50

lbs

2000

1600

10

Max. Water Absorption,Thick 0.5″

%

0.10

11

Flammability

UL94

V0

12

Temperature index

℃

155