HRS DF38-40P-0.3SD: The core choice for high-density ultra-fine coaxial connection solution

In the context of continuous upgrades of high-frequency and high-speed electronic systems, miniaturization and high-reliability signal interconnection methods have become an important direction in electronic device design. Micro coaxial cables, with their excellent high-frequency performance and extremely small wire diameter, are widely used in smart terminals, medical imaging equipment, and various scenarios with strict requirements for signal integrity. Connectors, as the key hub between cables and systems, directly affect signal quality. This article will introduce the core features of the HRS (Hirose) DF38-40P-0.3SD connector and analyze the key material composition of the micro coaxial cable.

---

Introduction to HRS DF38-40P-0.3SD connector

HRS DF38-40P-0.3SD is a high-density, fine-pitch ultra-fine coaxial connector launched by Hirose company, specifically designed for high-speed signal and high-frequency data transmission, widely used in the fields of mobile communication, medical equipment, and consumer electronics.

Its main characteristics include:

Contact spacing is only 0.3mm, achieving a higher wiring density.

Plug-in type structure,配合board-end to realize line-to-board connection.

Extremely thin coaxial cables suitable for AWG 42 to AWG 48, meeting the requirements of miniaturized design.

The assembly height is only 1.5mm, suitable for occasions with extremely limited space.

Adopt enhanced shielding structure to improve anti-interference ability and protect signal integrity.

Design of reliable locking mechanism, effectively prevent loosening, improve anti-vibration performance.

Meets lead-free, halogen-free, RoHS and other environmental protection requirements.

With its advantages of precise technology, high stability, and miniaturization, this connector is commonly used in high-performance products such as smartphones, tablets, digital cameras, ultrasonic devices, endoscopy systems, industrial cameras, and sensor modules.

---

Main material analysis of ultra-fine coaxial cable束

The high-frequency performance, anti-interference ability, and durability of extremely thin coaxial cable束 are highly dependent on material selection and structural design.

Conductive material

High-purity oxygen-free copper (OFC) and silver-plated copper, etc., with high conductivity, can effectively reduce impedance and signal attenuation, ensuring stable transmission of high-speed signals.

Insulating layer material

PTFE, PE and other materials with excellent dielectric properties are widely used, which have low dielectric constant and low loss characteristics, and can improve the transmission quality of high-frequency signals.

Screening layer material

Using weaving copper wire and multi-layer aluminum foil shielding structures can greatly enhance the ability to resist electromagnetic interference (EMI), keeping the signal clear and stable.

Sheath material

Using flexible and wear-resistant materials such as PU and fluoroplastic, the harness maintains good mechanical strength and durability under extremely small bending radii conditions.

Based on the combination of scientific materials and advanced processing technology, the extremely fine coaxial cable束 achieves comprehensive performance of high frequency, high speed, and high reliability under miniaturized structures.

HRS DF38-40P-0.3SD, with its compact design of 0.3mm spacing, excellent shielding structure, and reliable locking mechanism, has become a high-performance connection solution in ultra-thin coaxial cable systems. Combined with high-quality material micro coaxial cable, it can effectively improve the signal stability, space utilization, and overall reliability of equipment. For products pursuing high-density wiring and high-speed data links, this is a solution with great advantages.

I am[Suzhou Huichengyuan Electronic Technology]Long-term focus on the design and customization of high-speed signal cable harnesses and ultra-fine coaxial cable harnesses. If you have any related needs or wish to learn more about the products, please feel free to contact:Manager Zhang 18913228573 (same WeChat number)。