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SY S1141 FR-4 PCB material specification

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Physical and Thermal Characteristics

Glass Transition Temperature (Tg)

  • Method: IPC-TM-650 2.4.25
  • Condition: DSC
  • Unit: Degree Celsius
  • Typical Value: 140

Thermal Decomposition Temperature (Td)

  • Method: IPC-TM-650 2.4.24.6
  • Condition: 5% wt. loss
  • Unit: Degree Celsius
  • Typical Value: 310

Coefficient of Thermal Expansion (CTE) – Z-axis

  • Pre Tg:
    • Method: IPC-TM-650 2.4.24
    • Unit: ppm/degree Celsius
    • Typical Value: 65
  • Post Tg:
    • Method: IPC-TM-650 2.4.24
    • Unit: ppm/degree Celsius
    • Typical Value: 300

Linear Expansion (50-260 Degree Celsius)

  • Method: IPC-TM-650 2.4.24.1
  • Condition: TMA, min
  • Unit: %
  • Typical Value: 4.5

Thermal Stress Resistance

  • Method: IPC-TM-650 2.4.13.1
  • Condition: 288 degree Celsius, solder dip
  • Typical Value: No Delamination after 60 seconds

Electrical Properties

Volume Resistivity

  • After Moisture Resistance:
    • Method: IPC-TM-650 2.5.17.1
    • Unit: MΩ·cm
    • Typical Value: 5.2E+08
  • E-24/125:
    • Unit: MΩ·cm
    • Typical Value: 5.2E+06

Surface Resistivity

  • After Moisture Resistance:
    • Method: IPC-TM-650 2.5.17.1
    • Unit: MΩ
    • Typical Value: 5.4E+07
  • E-24/125:
    • Unit: MΩ
    • Typical Value: 5.6E+06

Arc Resistance

  • Method: IPC-TM-650 2.5.1
  • Condition: D-48/50+D-4/23
  • Unit: Seconds (s)
  • Typical Value: 120

Dielectric Breakdown

  • Method: IPC-TM-650 2.5.6
  • Condition: D-48/50+D-4/23
  • Unit: Kilovolts (kV)
  • Typical Value: 60

Mechanical Properties

Dissipation Constant (Dk)

  • Method: IPC-TM-650 2.5.5.9
  • Frequency: 1MHz
  • Typical Value: 4.6
  • IEC 61189-2-721 at 10GHz: Not specified

Dissipation Factor (Df)

  • Method: IPC-TM-650 2.5.5.9
  • Frequency: 1MHz
  • Typical Value: 0.015
  • IEC 61189-2-721 at 10GHz: Not specified

Peel Strength and Flexural Strength

Peel Strength (1Oz HTE copper foil)

  • Initial: N/mm – Not specified
  • After Thermal Stress at 288 Degree Celsius for 10s: N/mm – 1.8
  • At 125 Degree Celsius: N/mm – 1.6

Flexural Strength

  • Longitudinal (LW):
    • Method: IPC-TM-650 2.4.4
    • Typical Value: 600 MPa
  • Crosswise (CW):
    • Method: IPC-TM-650 2.4.4
    • Typical Value: 500 MPa

Environmental Resistance

Water Absorption

  • Method: IPC-TM-650 2.6.2.1
  • Condition: E-1/105+D-24/23
  • Typical Value: 0.15%

Flammability and CTI Rating

CTI Rating (IEC60112)

  • Rating: PLC 3

Flammability (UL94)

  • Condition: C-48/23/50
  • Rating: V-0
  • E-24/125: Rating – V-0

Notes and References

  1. Specification Sheet Reference: IPC-4101/21 for reference only.
  2. Specimen Basis: All typical values based on a 1.6mm specimen, except Tg which applies to specimens ≥0.50mm.
  3. Disclaimer: The typical values listed are for reference only and not intended for specification purposes. For detailed information, contact Shengyi Technology Co., Ltd. All rights reserved by Shengyi Technology Co., Ltd.
  4. Explanation of Conditions:
    • C = Humidity conditioning
    • D = Immersion conditioning in distilled water
    • E = Temperature conditioning
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