Vibration Fatigue

Each year, more electronics are integrated into vehicles as a part of the drive for fuel efficiency.  This efficiency is largely gained through weight reduction. To achieve this, some electronics are being mounted in parts of the car which subject them to high thermal and vibration stresses.  Alpha's research and development scientists have developed solder alloys which enable the reliable operation of electronics, at operating temperatures which would inhibit the use of common solders.  This development gives greater freedom in the design and integration of electronics at their point of need, and contributes significantly to the goal of vehicle weight reduction.

Alpha products that help reduce vibration fatigue:

Solder Paste

  • OM-390 (with Maxrel (Innolot) alloy)
  • OM-340 (with Maxrel (Innolot) alloy)


Bar Solder Alloys

Use the chart below to determine which Alpha alloy is right for you. Simply align the type of assembly being made with the appropriate alloy.

 Assembly Type
Simple, single sided, FR2 / CEM-1 laminates
Dual sided FR-4 w/ PTH's, 1.6mm thick, up to 4 inner copper layers, metallized pad finishes
Complex, up to 12 inner copper layers, OSP pad finishes, all processing in air
>2.4mm thick, >12 inner copper layers, large high heat capacity components
 SACX Plus 0807

 SAC alloys label for table
  1%+ flux solids, L0, pin testable
Flux Type
  SACX Plus 0307
    4%+ flux solids, L or M0, pin testable
 SnCX Plus™ 07
          4%+ flux solids, L or M0, moderately pin testable
            7%+ flux solids, L,M or H1, not pin testable
0ºC to 100ºC - standard profile cycles
0ºC to 100ºC - standard and shock profile cycles
- 25ºC to 125ºC - standard and shock profile cycles
- 45ºC to 125ºC - standard and shock profile cycles
Thermal Fatigue Resistance


Solder Preforms


Cored Wire

(Press ctrl to select multiple)