In today’s connected world, electrical connectors are the unsung heroes behind nearly every system. Whether they’re routing avionics data in an aircraft, enabling battlefield communications, or powering a telecommunications network, connectors must perform without fail. That’s where The Lindgren Group comes in.
We specialize in precision connector plating services, offering gold, silver, and tin plating to meet a wide range of conductivity, corrosion resistance, and durability requirements. Our finishes ensure stable signal transmission, long-lasting wear protection, and full compliance with industry standards—including MIL-SPEC, IPC, and NADCAP certifications.
What Is Connector Plating?
Connector plating refers to the application of a conductive or protective coating on the contact surfaces of an electrical connector. This process is essential to ensure:
- Low contact resistance
- High conductivity
- Protection against oxidation and corrosion
- Durability through repeated mating cycles
- Compatibility with soldering or press-fit operations
In environments where temperature extremes, vibration, or moisture are a factor, the quality of the plating can make or break the performance of your entire system.
Our Connector Plating Options
Gold Connector Plating
Gold is widely considered the premium standard for electrical contacts. It resists oxidation, offers exceptional conductivity, and maintains performance over thousands of mating cycles.
Best for:
- Aerospace avionics and flight control systems
- Military communications and radar systems
- RF/microwave connectors
- Data-critical electronics
Benefits:
- Excellent corrosion resistance
- Stable contact resistance over time
- Compatible with high-vibration applications
- Compliant with MIL-G-45204, ASTM B488
We offer both hard and soft gold options and can plate to specific thicknesses based on your contact wear requirements.
Silver Connector Plating
Silver offers the highest electrical and thermal conductivity of any metal, making it ideal for power and high-frequency applications. While silver does tarnish, it maintains conductivity even in oxidized form.
Best for:
- High-current power connectors
- RF and microwave systems
- Grounding lugs and busbars
- Aerospace and satellite communications
Benefits:
- Highest electrical performance
- Excellent thermal dissipation
- Cost-effective for power transmission
- Compliant with AMS 2410, AMS 2411, ASTM B700
Silver is also a common choice for connectors in renewable energy systems and electric vehicles.
Tin Connector Plating
Tin is a popular, economical solution for high-volume electrical connectors and solderable terminations. It’s especially well-suited for consumer electronics, automotive applications, and telecom hardware.
Best for:
- Automotive connectors and terminals
- Telecommunications and consumer devices
- High-volume PCB connectors
- Control panels and appliances
Benefits:
- Strong solderability
- Oxidation and corrosion protection
- Affordable for large-scale production
- Compliant with ASTM B545, MIL-T-10727
Tin finishes are often used where cost, conductivity, and solderability must be balanced.
Additional Connector Plating Services
- Selective Plating: Targeted application of plating to specific contact areas, reducing material waste and cost
- Barrel Plating & Rack Plating: Flexible approaches based on volume and geometry
- Underplating Options: Nickel, copper, or alloy layers to enhance adhesion and prevent diffusion
- Post-Plate Testing: Contact resistance, adhesion, solderability, and plating thickness inspection
Industries That Rely on Our Connector Plating Services
Aerospace
- Avionics connectors
- Sensor contacts and electrical interfaces
- High-altitude and vibration-tolerant contact systems
- NADCAP-approved processes for flight-certified parts
Defense & Military
- Communications systems and tactical radios
- Ruggedized connectors for harsh environments
- MIL-SPEC compliant finishes
- Long mating cycle life under battlefield conditions
Electronics & Telecom
- PCB connectors and sockets
- Coaxial, fiber, and signal connectors
- High-speed data interfaces (USB, HDMI, custom pins)
- Low-resistance plating for high-frequency performance
Automotive & EV
- Battery and charging connectors
- In-vehicle communication and infotainment systems
- Underhood contacts and power distribution units
- Tin and silver plating solutions for scalable production
Industrial & Renewable Energy
- Connectors for solar, wind, and battery systems
- Factory automation equipment
- High-amperage terminals and control units
- Long-life plating for connectors exposed to the elements
Why Choose The Lindgren Group?
✔️ Certified & Compliant
We meet or exceed NADCAP, MIL-SPEC, RoHS, and ISO 9001 standards—giving you peace of mind on every order.
✔️ Precision Focused
Our facility is equipped to handle complex connector geometries, tight tolerances, and selective finishing for specialized applications.
✔️ Scalable for Any Volume
From R&D prototypes to high-volume production runs, we tailor our services to your workflow and delivery timeline.
✔️ Partner-Level Support
We work closely with your engineers and sourcing team to align finish specs with end-use environments and product lifecycles.
✔️ Full Traceability & Documentation
Lot traceability, inspection reports, and thickness certifications are included with every order.
Trusted by OEMs, Defense Contractors & Tier 1 Suppliers
We proudly support customers across the U.S. who depend on flawless connector performance. Whether you’re designing a next-generation aerospace platform, building tactical equipment, or assembling EV battery connectors, our finishes help ensure long-term success.
Located centrally in the United States, The Lindgren Group offers fast, responsive service to clients nationwide—including major aerospace, defense, and electronics manufacturing hubs.
Request a Connector Plating Quote
Need connector plating that meets your spec, your timeline, and your performance standards? The Lindgren Group is here to help.