When it comes to SD card connectors, selecting the right plastic material is critical for durability, thermal stability, and electrical reliability. At MOARCONN, we focus on providing high-performance SD card connectors that integrate premium materials such as LCP (Liquid Crystal Polymer) and high-quality metal terminals to ensure optimal performance in both consumer and industrial electronics.

The connector housing material determines the connector’s mechanical strength, thermal resistance, and lifespan. Common plastics include PA66, PBT, PPS, and LCP, each offering distinct properties:

• PA66/PBT: Cost-effective, general industrial use, but limited heat resistance (120–150°C).

• PPS: Stronger mechanical properties, heat resistance up to 260°C, suitable for automotive and industrial connectors.

• LCP: Superior heat resistance (up to 316°C intermittent), dimensional stability, and chemical resistance, ideal for high-density SD card slots and SMT assembly.

1. Thermal Stability 

LCP can withstand long-term use at 200–240°C and intermittent peaks up to 316°C, making it perfect for high-temperature soldering processes.

2. Mechanical Strength 

LCP offers excellent toughness, impact resistance, and flexural strength, ensuring connectors remain stable under vibration or shock.

3. Chemical Resistance 

Resistant to acids, alkalis, and solvents, LCP maintains integrity in harsh environments, extending the connector’s lifespan.

4. Electrical Insulation 

High CTI and low dielectric loss make LCP safe for high-frequency data transmission in SD card slots.

• Heat Resistance 

PA66/PBT: 120–150°C

PPS: 220–260°C

LCP: 200–316°C

• Mechanical Strength 

PA66/PBT: Moderate

PPS: High

LCP: Very High 

• Chemical Resistance 

PA66/PBT: Low 

PPS: Medium

LCP: High

• Dimensional Stability 

PA66/PBT: Low

PPS: Medium 

LCP: Excellent 

• SMT Assembly Suitability 

PA66/PBT: Limited 

PPS: Good 

LCP: Excellent 

This comparison demonstrates why MOARCONN chooses LCP for SD card connectors, especially in compact, high-density, and high-performance designs.

At MOARCONN (www.moarconn.com), we combine precision engineering, high-quality LCP plastics, and premium phosphor bronze/beryllium copper terminals to deliver reliable and long-lasting SD card connectors. Our products are designed to:

• Reduce insertion/extraction force while maintaining contact reliability.

• Withstand extreme temperatures and industrial usage.

• Support high-speed data transmission for modern devices.

Choosing the right material for SD card connectors can dramatically affect device performance and longevity. LCP plastic, combined with high-quality metal terminals, offers the best balance of heat resistance, mechanical durability, chemical stability, and electrical performance. Trust MOARCONN for high-performance SD card connectors tailored to demanding applications.

CTA: Learn more about our SD card connector solutions at www.moarconn.com