The precision electronics and telecommunications sector today requires materials capable of offering the highest level mechanical, thermal and dielectric performance.
The increasing miniaturization of components and rising operating temperatures require the use of advanced technical polymers such as reinforced PPS (polyphenylene sulfide), one of the most reliable solutions for high-performance applications.
Why PPS is Ideal for Precision Electronics
With the evolution of modern electronics, the materials used must guarantee:
- Dimensional stability even at elevated temperatures;
- Certified flame retardancy for device safety;
- Fine processability for complex and thin geometries;
- Electrical and thermal compatibility for sensitive components;
- Long-term durability even under continuous thermal loads.
Glass fiber reinforced PPS fully meets these requirements, maintaining a balance between rigidity, thermal resistance and electrical insulation, even in the most severe application contexts.
Application Case: Transformer Bobbins in Reinforced PPS
A concrete example comes from F.lli Motta Srl, a company specialized in the production of components for transformers and inductors.
For ferrite bobbins in a new series of precision transformers, the company chose LARTON G/40 compound, formulated by LATI based on PPS reinforced with 40% glass fiber.
This solution was selected to meet stringent design requirements:
| Technical requirement | Specification | Benefit |
| Thermal resistance | ≥150°C continuous | Operational stability at high temperature |
| Flame retardancy | UL94 V0 @ 0.42 mm | Guaranteed electrical safety |
| Mold filling | Thicknesses <0.5 mm | Precision in miniaturized geometries |
| Mechanical strength | High | Pin and component insertion without deformation |
| Dimensional stability | Excellent | No deformation over time |
Thanks to its thermal aging resistance and low creep tendency, LARTON G/40 enables the production of compact, precise and long-term stable components — essential qualities for power and precision electronics.
Properties of Reinforced PPS: beyond Miniaturization
| Property | Technical description |
| Continuous service temperature | up to 200°C |
| Moisture absorption | Very low (<0.02%) |
| Chemical resistance | Excellent against solvents, oils and fuels |
| Electrical behavior | Excellent insulator even in humid environments |
| Dimensional stability | High, even with reinforcing fibers |
| Intrinsic flame retardancy | Without halogen additives (UL94 V0) |
Thanks to these properties, reinforced PPS is today a reference material in the construction of high power density electronic components, such as:
- Precision transformers and coils
- Miniaturized high-temperature connectors
- Supports and frames for printed circuit boards (PCB)
- Components for sensors and RF modules
LARTON G/40: PPS Reinforced with 40% Glass Fiber
LARTON G/40 represents an ideal balance between structural rigidity and ease of processing.
The presence of 40% glass fiber gives the material high mechanical strength without compromising molding precision, even in very thin cavities (<0.5 mm).
Furthermore, PPS has a reduced thermal expansion coefficient, which minimizes the risk of deformation in components subjected to repeated thermal cycles.
| Property | Typical value | Standard |
| Density | 1.65 g/cm³ | ISO 1183 |
| Elastic modulus | >10 GPa | ISO 527 |
| Heat deflection temperature under load | >260°C | ISO 75 |
| Flame retardancy | UL94 V0 | ASTM D635 |
| Tensile strength | >150 MPa | ISO 527 |
Advantages of Using Reinforced PPS in Electronics
| Advantage | Description |
| Electrical safety | UL94 V0 flame retardancy without halogen additives |
| Thermal reliability | Consistent performance up to 150–200°C |
| Dimensional precision | Ideal for miniaturized geometries |
| Aging resistance | No performance loss over time |
| Environmental compatibility | RoHS compliant and free of hazardous substances |
LATI PPS Alternatives for Different Electronic Sectors
LATI offers a complete range of reinforced PPS compounds for electrical, electronic and industrial applications:
| LATI compound | Reinforcement | Typical application |
| LARTON G/30 | 30% glass | Connectors and lightweight supports |
| LARTON G/40 | 40% glass | Precision transformers and coils |
| LARTON G/55 | 55% glass | Structural and dissipative parts |
| LARTON C/40 | 40% carbon | Conductive or shielding components |
FAQ – Frequently Asked Questions about Reinforced PPS Compounds for Electronics
- What are the main advantages of reinforced PPS for precision electronics?
It guarantees thermal and dimensional stability, high mechanical strength and UL94 V0 flame retardancy, ideal for miniaturized devices. - Is PPS suitable for components in contact with high temperatures?
Yes. PPS compounds can operate continuously above 150°C, maintaining mechanical and insulating properties. - What typical applications use reinforced PPS?
Connectors, transformer bobbins, sensor components and support structures in electronics and telecommunications.
Conclusion and Call to Action
Reinforced PPS for precision electronics, such as LARTON G/40, represents an excellent solution for those seeking dimensional stability, electrical safety and thermal resistance.
Perfect for applications where reliability and miniaturization are essential.
Do you want to improve the performance of your electronic components?
Request technical consultation from LATI to identify the most suitable PPS compound for your project.
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