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AI Overview
HDI PCB-High TG FR4-6 Layers 1 Step-Immersion Gold-HD LED ...
High Tg (
>170∘Cis greater than 170 raised to the composed with power C
>170∘C
) FR-4 PCBs with immersion gold (ENIG) surface finish offer superior thermal stability, oxidation resistance, and flatness for high-power or lead-free soldering applications. These boards prevent softening and failures at high operating temperatures, making them ideal for industrial, automotive, and high-speed computing applications. 
Key Features and Benefits 
  • High Tg Definition: High Tg PCBs have a glass transition temperature (
    TgTg
    Tg
    ) of
    ≥170∘Cis greater than or equal to 170 raised to the composed with power C
    ≥170∘C
    , meaning they retain rigidity and withstand high temperatures significantly better than standard FR-4 (130-150°C).
  • Immersion Gold (ENIG) Finish: Provides excellent surface flatness (ideal for BGAs), prevents oxidation, and enables reliable soldering.
  • Superior Reliability: Offers enhanced heat, moisture, and chemical resistance.
  • Lead-Free Compatible: Suitable for lead-free assembly processes which require higher temperatures. 
Common Applications 
  • Industrial Control Systems: Used in high-power, high-heat environments.
  • High-Speed Computing & Telecom: Servers and routers.
  • Automotive & Satellite: High-frequency, high-reliability circuits.
  • Consumer Electronics: HDI PCBs for items like tablet computers. 
Typical Specifications 
  • Tg Rating:
    170∘C170 raised to the composed with power C
    170∘C
     to
    180∘C
    +
    .
  • Base Material: High Tg FR4 (e.g., TU-872 SLK).
  • Surface Finish: Electroless Nickel Immersion Gold (ENIG/Immersion Gold).
  • Layers: Available in 2, 4, 8, 12, and 14+ layers.
  • Thickness: Commonly 1.6mm (standard) or customized. 
High Tg FR-4 PCBs with immersion gold are popular choices for manufacturers looking for durable, high-performance, and robust circuit boards that won't deform in high-temperature environments. 
  • HDI PCB-High TG FR4-6 Layers 1 Step-Immersion Gold-HD ...
    HDI PCB-High TG FR4-6 Layers 1 Step-Immersion Gold-HD LED Display - Jhdpcb. 🔍 Home / Industry Application / Consumer Electronics ...
    JHDPCB
  • Hybrid PCB Built on SCGA-500 GF265 High Frequency Material and ...
    The Hybrid PCB on RO3003 and High Tg FR-4 is a state-of-the-art solution for high-frequency applications. With its exceptional sta...
    Bicheng PCB
  • High Tg Printed Circuit FR4 PCB Board With Immersion Gold
    High Tg Printed Circuit Board (PCB) Built on 1.6mm TU-872 SLK Sp (Low DK FR-4) With Immersion Gold. Brief Introduction. This is a ...
    m.rfpcb-board.com
Show all
  • HDI PCB-High TG FR4-6 Layers 1 Step-Immersion Gold-HD ...
    HDI PCB-High TG FR4-6 Layers 1 Step-Immersion Gold-HD LED Display - Jhdpcb. 🔍 Home / Industry Application / Consumer Electronics ...
    JHDPCB
  • FR4 Printed Circuit Board(PCB), High-Tg, Halogen Free FR4 ...
    * FR4 is a type of printed circuit board substrate made of flame retardant epoxy resin and glass cloth. * The standard thickness o...
    KingFord PCB
  • Hybrid PCB Built on SCGA-500 GF265 High Frequency Material and ...
    The Hybrid PCB on RO3003 and High Tg FR-4 is a state-of-the-art solution for high-frequency applications. With its exceptional sta...
    Bicheng PCB
  • High Tg Printed Circuit FR4 PCB Board With Immersion Gold
    High Tg Printed Circuit Board (PCB) Built on 1.6mm TU-872 SLK Sp (Low DK FR-4) With Immersion Gold. Brief Introduction. This is a ...
    m.rfpcb-board.com
  • Multilayer Printed Circuit Board 8-Layer PCBs Built On Tg175℃ FR- ...
    1.5 Glass Transition Temperature (Tg) ... The Tg is determined by the intersection of the tangents of the flat and steep parts of ...
    www.circuitboardpcbs.com
  • What Is High TG PCB? - PCBgogo
    Needless to say, a normal PCB FR4-Tg is 130-140 degrees, the medium Tg is greater than 150-160 degrees, and high Tg is greater tha...
    PCB GoGo
  • Fr4 High Tg 1.6mm 12layer Imm Gold Motherboard Circuit PCB
    Fr4 High Tg 1.6mm 12layer Imm Gold Motherboard Circuit PCB * FOB Price: US $0.5 - 9,999 / Piece. * Min.Order Quantity: 1 Piece/Pie...
    www.fastlinepcb.com
  • Custom Design Tg175℃ FR-4 PCB Immersion Gold ...
    Multilayer Printed Circuit Board 8-Layer PCBs Built On Tg175℃ FR-4 With Immersion Gold. This is a type of 8-layer printed circuit ...
    Bicheng PCB
  • High TG Printed Circuit Board (PCB) - AlteraFlex
    High-TG PCBs High Temperature PCB FR4 Material Circuit board material must flame-resistant, it can't be burned at a certain temper...
    AlteraFlex Circuits
  • High Tg PCBs - Sierra Circuits
    Glass transition temperature (Tg) is the temperature at which a substrate transitions from a glassy, rigid state to a rubbery stat...
    Sierra Circuits
  • High-Tg FR4 PCB Overview and Manufacturer - PCBONLINE
    Tg, or glass transition temperature, is a measure of the heat resistance of FR4 PCBs. It is 30℃ higher than the maximum working te...
    www.pcbonline.com
  • High-TG PCBs High Temperature PCB fr4 Material - PCBWay
    PCBs with a Tg of 170℃ or higher are commonly referred to as high Tg PCBs. The increase in Tg of the substrate enhances the heat r...
    PCBWay
  • Surface Finish Selection for High-Reliability Avionics System PCBs
    Jul 7, 2025 — Comparing Corrosion Resistance for Avionics PCBs Across Finishes ENIG: Offers the highest corrosion resistance due to its gold top...
    ALLPCB
  • What is High Tg PCB? Advantages and Uses Explained | JHYPCB
    Sep 17, 2025 — Industrial applications, such as power supplies, motor controllers, and renewable energy systems, often operate in environments wi...
    www.pcbelec.com
  • Go to product viewer dialog for this item.
    5x7cm immersion gold fr4 pcb
    This 5x7cm Immersion Gold FR4 PCB features excellent signal integrity, thermal stability, and oxidation resistance. Covered with a...
    Google
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Web results

High-TG PCB, FR-4 PCB


PCBCart
https://www.pcbcart.com › pcb-fab › high-tg-pcb
PCBCart
https://www.pcbcart.com › pcb-fab › high-tg-pcb
PCBCart offers a wide selection of high-temperature PCB products manufacturing services either with FR-4 or other high-quality heat- and temperature-resistant ...Read more

High-Tg FR4 PCB Overview and Manufacturer - PCBONLINE


pcbonline.com
https://www.pcbonline.com › PCB-FAB › High-TG-PCBs
pcbonline.com
https://www.pcbonline.com › PCB-FAB › High-TG-PCBs
High-Tg PCBs are FR4 PCBs that have a higher glass transition temperature. PCBONLINE provides FR4 PCBs of any Tg, including high-Tg PCBs.Read more

FR4 Printed Circuit Board(PCB), High-Tg, Halogen Free ...


KingFord PCB
https://www.kingfordpcb.com › fr4-pcb
KingFord PCB
https://www.kingfordpcb.com › fr4-pcb
FR4 is the most used material in PCB construction. Circuit boards made of FR4 are strong, waterproof, and provide good insulation between copper layers, ...Read more

Custom Design Tg175℃ FR-4 PCB Immersion Gold, ...


Bicheng PCB
https://www.bichengpcb.com › tg175-fr-4-pcb-immersio...
Bicheng PCB
https://www.bichengpcb.com › tg175-fr-4-pcb-immersio...
This is a type of 8-layer printed circuit board built on FR-4 Tg175℃ substrate for the application of Satellite Radio. Tags : Multilayer FR-4 Printed ...Read more

High Tg PCBs


Sierra Circuits
https://www.protoexpress.com › high-tg-pcbs
Sierra Circuits
https://www.protoexpress.com › high-tg-pcbs
A PCB is considered a high Tg board if its Tg is higher than 180 °C. Standard FR-4 boards have a Tg of around 130 to 150 °C.Read more

IMMERSION GOLD PCB


JSD PCB
https://www.jsdpcb.com › products › immersion-gold-pcb
JSD PCB
https://www.jsdpcb.com › products › immersion-gold-pcb
2L 0.5mm FR4 blue Keyboard immersion gold PCB board · 4L FR4 thickness 0.75mm 5-4mil yellow immersion gold board · 4L High TG immersion gold printed circuit board.Read more

HDI PCB-High TG FR4-6 Layers 1 Step-Immersion Gold ...


JHDPCB
https://jhdpcb.com › ... › High TG PCB
JHDPCB
https://jhdpcb.com › ... › High TG PCB
PCB Type: HDI PCB Base material: fr4 Layers: 8 layers PCB thickness: 0.8mm Inner (outer) layer copper thickness: 1 OZ/1 OZ Surface treatment: immersion ...

High Tg Printed Circuit FR4 PCB Board With Immersion Gold


rfpcb-board.com
https://www.rfpcb-board.com › sale-14472496-high-tg-p...
rfpcb-board.com
https://www.rfpcb-board.com › sale-14472496-high-tg-p...
This is a type of low DK/DF FR-4 PCB which is built on TU-872 SLK Sp material. It is made on 4 layers copper with 1oz each layer, coating immersion gold and ...Read more
$9.99 to $99.99

OEM Multilayer High Tg Immersion Gold Fr4 PCB Board for ...


Made-in-China.com
https://kmc2010.en.made-in-china.com › product › Chi...
Made-in-China.com
https://kmc2010.en.made-in-china.com › product › Chi...
OEM Multilayer High Tg Immersion Gold Fr4 PCB Board for Electronics Product Project ; Material: Fiberglass Epoxy ; Flame Retardant Properties: V0 ; Production ...Read more
Free delivery

What Is High TG PCB?


PCB GoGo
https://www.pcbgogo.com › blog › What_Is_High_TG...
PCB GoGo
https://www.pcbgogo.com › blog › What_Is_High_TG...
High FR4-Tg will have better mechanical and chemical resistance to heat and moisture than standard FR4. The higher the Tg value, the better the temperature ...Read more
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