Soft-Termination MLCC

Solving Reliability Challenges in Next-Generation Automotive ECUs

VW80808 Certification Acquired
Adopting Low-Silver Filler

Market Factors Accelerating the Shift to Soft-Termination

Growing Demand for Fail-Safe Designs

The adoption of soft-termination products is strongly recommended, particularly in battery lines and low-voltage, high-power lines

Increased Importance of Countermeasures for Board Flexure

With the adoption of thicker boards for higher power and the integration of heavy, large components, countermeasures against board flexure have become critical priority.

Smaller Stress from Smaller, Higher-Performance ECUs

High-density mounting not only increases thermal stress on the board but also causes rapid temperature changes (thermal shock) due to the introduction of advanced liquid-cooling systems.

Replacement of Ta/Al Polymer Capacitors

To ensure a stable supply of components and reduce mounting area, there is a growing trend. Toward replacing conventional polymer capacitors with highcapacitance MLCCs. In such cases, soft-termination is increasingly selected to reduce the risk of cracking

Key Features of TAIYO YUDENʻs Soft-Termination MLCCs

VW 80808 Qualified

Adoption of Low-Silver Filler Migration Resistance

  • 5mm
    Board Flexure Resistance no critical failures under 10mm flexure
  • 2,000~3,000
    Stable Heat Cycle From -40℃ to+125℃
  • Migration Resistance
    Ion Migration suppressed In high-humidity

Significantly reduced silver usage while maintaining conductivity, polymer flexibility, and sustainable supply system.

Type Old Soft Termination New Soft Termination
Component Level Migration
Standard Dew Test
ISO 6270-2/AEC-Q102-001
Component Level Migration
High Severe Dew Test
Temperature Cycle
TC180/3,000 cycles

Automotive-Grade Lineup - AEC-Q200

Temp.
Char.
Case size(LxW)
[mm]
Thichness(typ)
[mm]
Reted Voltage
[Vdc]
Capacitance
0.6x0.3 Under Development

0.5

6.3 - 100.0 220pF - 1uF

0.8

6.3 - 100.0 1000pF - 2.2uF
4.0 - 250.0 1000pF - 22uF

1.6

4.0 - 250.0 1000pF - 47uF

1.9

16.0 - 100.0 0.022uF - 4.7uF

2.5

6.3 - 100.0 2.2uF - 47uF