Electronic Part Plating Specifications: 10-Point Checklist

Electroplating to enhance the performance of electric parts

Electroplated parts used in today’s modern electronic devices are continually “put to the test.” The mobility and on-the-go pace of these devices really pushes the limits for delivering connection reliability, conductive stability, and environmental protection.  It’s no wonder, then,  that the plating of parts used in these applications has become such an important service consideration.

Certainly, the depositing of conductive or protective metals according to skillfully prepared specifications can extend the performance and service life of electrical components significantly. However, the process of simply ‘“electroplating” does not provide a “one-size-fits-all” solution. Critical choices regarding substrate, coating metal, plating thickness, and coating material standards can greatly alter end performance. Incorrectly specified, electroplating can yield poor results leading to solderability issues, poor electrical conductivity, and premature part failure.

Understanding the advantages associated with various electroplate specifications in an important first step toward realizing reliable plating performance from parts used in consumer, automotive, aerospace, and telecom applications.

The following 10-point checklist provides a quick overview of the detailed technical factors that engineers and procurement teams should carefully evaluate when specifying electrical part plating.

1. Identify the application environment for the plated part

Plating requirements should consider anticipated environmental stresses.
Examples include:

• RF/Microwave connectors: Require low signal loss; silver or gold plating at 30–50 μin (0.75–1.25 μm).
•  Aerospace avionics: Must resist vibration, moisture, and thermal extremes. Gold over nickel barrier plating is standard.
• Automotive electronics: Humidity, road salt, and thermal cycling demand robust tin or nickel finishes with protective overcoats.

Key Environmental Resistance Parameters:

• Operating temperature range: –55°C to +150°C
• Humidity exposure: >85% RH
• Salt fog resistance: per ASTM B117

2. Select the optimum base material based on function parameters

Substrates affect adhesion and long-term reliability.

3. Select plating metals to align with performance goals

Each plating metal brings specific trade-offs:

4. Define Optimum plating thickness and acceptable deviation tolerance

Coating thickness determines functional life.

5. Identify solderability and bonding requirements.

Plating details affect solder joint integrity and part shelf life

6. Consider needs for corrosion resistance

Corrosion is a leading cause off part failure, especially in ever-moving portable or transportation—related electronics.

7. Specify needed current-carrying capacity

Contact resistance and conductivity are critical.

8. Evaluate value of dual-coat and multi-coat plating solutions

Multi-layer playing solutions extend life but also increase cost:

9. Verify plating certifications and standards compliance records

• Look for a Plating Service provider with ACTIVE certifications that ensure quality:
• ASTM B488 / MIL-DTL-45204: Gold plating standards
• ASTM B700: Silver plating
• ASTM B545: Tin plating
• ASTM B689: Nickel plating
• ISO 9001 / AS9100: Quality systems
• RoHS / REACH: Environmental compliance for global supply

Note: Traceable certification ensures parts meet aerospace, telecom, and defense requirements.

10. Choose an Electroplating Vendor with a proven Quality Assurance protocol system

Quality Assurance at the highest level should include:

•  XRF (X-ray fluorescence): Non-destructive thickness measurement
• Microsectioning: Adhesion and porosity verification
• SPC monitoring: Ensures repeatability in production
• Dimensional inspection (CMM): Confirms tolerances remain within spec

Note: Sampling plans based on ANSI/ASQ Z1.4 or equivalent ensure statistical reliability.

Why companies that “know” choose Summit Plating

Because Electroplating plays such a critical role in the performance characteristics of electronic components, working with a plating partner with proven expertise in this field is the first step toward realizing on-time and on-budget success.

Summit Plating brings a time-proven combination of technical expertise, advanced process control, innovative plating-process solutions, and important industry certifications. Collectively, these translate into dependable, precision finishes on even the most difficult to plate electronic parts.

As a result, Summit Plating has become a trusted vendor of choice for companies manufacturing oats used in aerospace, defense, telecom, consumer applications, and other sectors that value the reliability of plated electronic parts.