Applications within the consumer electronics, telecom and server industries require high strength connectors that can withstand high electrical currents but can also be manufactured for a range of device sizes.
Copper beryllium alloys are well known for their superior stress relaxation resistance and fatigue strength. Their blend of properties provides engineers the flexibility to design small form factor signal and power interconnects that can be used in harsh environments. Materion’s copper beryllium alloys 390 (UNS C17460) and 390E (UNSC17500) offer the high strength of Alloy 25 (C17200) combined with the electrical conductivity of Alloy 3(C17510) or Alloy 174 (C17410). This combination allows for greater design flexibility when using the alloys for small, form factor signal and power interconnects used in harsh environments.
Our Alloys 390 and 390E materials both provide attributes that are ideal to address challenging applications, including:
High Conductivity: Maintains flow of electrical and thermal energy, reducing device operating temperatures and improving device battery life
Excellent Stress Relaxation Performance: Retains contact force at elevated temperatures for high reliability of the connector
Excellent Resilience: Tolerates large displacements without permanently deforming
Excellent Fatigue Strength: Enables high cycle life without degradation of contact force
In addition to these characteristics, Alloys 390 and 390E offer their own unique attributes as well. Learn more about each below.
ALLOY 390 RESISTS STRESS RELAXATION
Our mill hardened Alloy 390 strip provides a unique combination of high strength and high electrical conductivity, coupled with good resistance to stress relaxation. This combination allows for high reliability, small form factor contacts. Alloy 390 can be a solution for computer burn-in and test sockets (BiTS), production sockets, power connectors, switch, relay, automotive power applications and handheld and portable electronic contact applications.
