EV Charging Connector Pins Supplier

Reliable connector pins for EV charging systems — built for high current & long lifespan.

✅ High Conductivity
✅ ±0.01 mm Precision
✅ Fast Sampling
✅ Copper / Brass Available
✅ Silver Plated
✅ 3–7 Days Sample

View CNC Machining Capability

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What is an EV Charging Connector Pin?

EV charging connector pins are precision conductive metal terminals inside the charging plug and vehicle inlet.They form the core electrical and communication interface between the charger and the EV.

Charging gun
ChargingGun
Charging Gun

Pin Function Classification

Power Pins (High Current)
  • Transmit AC / DC electrical energy

  • Designed for high-temperature & high-load performance

Protective Earth (PE) Pin
  • Grounding protection

  • Leakage & shock prevention

  • Static discharge safety 
Signal Pins
  • Control Pilot (CP): charging handshake & control logic

  • Communication: CAN / PLC protocol support

  • Proximity Pilot (PP): plug detection & cable rating

 

Safety Design: Staggered Mating System

Stage Connection Order (Mating Sequence) Function Safety / Technical Benefit
1 PE Grounding Pin Connects First Establishes protective earth connection between charger and vehicle Prevents electric shock risk by ensuring a safe grounding path before any current flows
2 Signal Pins Connect Second Enables communication between EV and charging station (handshake, authentication, control signals) Ensures stable data exchange and system verification before power delivery
3 Power Pins Connect Last Transfers AC or DC electrical power to the vehicle battery system Prevents arcing by ensuring system is already grounded and communication is established

 

Stage Disconnection Order (Reverse Sequence) Function Safety / Technical Benefit
1 PE Grounding Pin Connects First Establishes protective earth connection between charger and vehicle Prevents electric shock risk by ensuring a safe grounding path before any current flows
2 Signal Pins Connect Second Enables communication between EV and charging station (handshake, authentication, control signals) Ensures stable data exchange and system verification before power delivery
3 Power Pins Connect Last Transfers AC or DC electrical power to the vehicle battery system Prevents arcing by ensuring system is already grounded and communication is established

Types of EV Charging Standards and Their Pin Configurations

Charging Standard Pin Configuration Charging Mode
Type 1 (SAE J1772) 5 pins AC (Level 1 & 2)
Type 2 (IEC 62196) 7 pins AC / DC Combo (CCS)
CCS Combo 1 & 2 7 pins (incl. DC) AC & DC Fast Charge
CHAdeMO 10 pins DC Fast Charging
Tesla Proprietary AC & DC Supercharge

Main Global EV Charging Standards

EU Standard

EU Standard — CCS2 (Type 2 Combo)

  • AC section: 7 pins (L1/L2/L3/N/PE/CP/PP)
  • DC section: high-power DC+ / DC− pins
  • Supports ultra-fast DC charging
  • CP controls charging logic via communication protocols
  • PP identifies cable capacity & insertion status
US Standard

US Standard — CCS1 (J1772 Combo)

  • AC section: L1 / N / PE / CP / PP
  • DC section: integrated high-current DC terminals
  • CP manages safety handshake & current regulation
  • Not physically compatible with CCS2 due to structure differences

OEM / CNC Manufacturing Support

Yumei Hardware provides end-to-end manufacturing solutions for precision components. Our expertise includes CNC turning, precision machining, custom EV connector pin manufacturing, flexible material and plating options, and scalable production capabilities to support everything from prototype development to high-volume production.

Why It Matters

EV charging connector pins must maintain perfect alignment and stable contact. Any deviation can cause increased resistance, heat buildup, and reduced service life.

Industry Standard

Silver plating is widely used as the preferred coating for EV charging connector pins due to its superior electrical performance and durability.

Key Benefits

  • Lowest electrical resistance among all coating materials
  • Improved charging efficiency and stable power transfer
  • Strong anti-oxidation performance in harsh environments
  • Extended connector pin service life under high-cycle usage

Typical Specifications

  • Coating thickness: 3–10 μm (customizable)
  • High adhesion strength (automotive-grade standard)
  • Suitable for high-frequency mating cycles
  • Compatible with AC & DC EV charging systems

Material Selection for EV Charging Connector Pins

Brass EV Charging Connector Pins

Advantages:

  • Excellent machinability → ideal for high-volume production
  • Good conductivity for standard charging
  • High dimensional stability
  • Cost-effective

Typical Use:

  • AC charging connectors
  • Mid-power EV charging systems

Copper EV Charging Connector Pins

Advantages:

  • Up to 100% IACS conductivity
  • Ideal for DC fast charging
  • Excellent thermal dissipation
  • Lower energy loss

Typical Use:

  • Fast charging stations
  • High-current EV systems
  • Battery charging modules
Charging Connector Pins
Charging Connector Pins1
Charging Connector Pins2
Charging Connector Pins3
Charging Connector Pins4
Charging Connector Pins5

EV Charging Connector Pins: Full-Process Quality Inspection System

Built for Type 1 (SAE J1772), Type 2 (EN 62196), and GB standards, Yumei Hardware delivers EV charging connector pins with strict international-grade quality control for global EV charging infrastructure.

Our manufacturing system fully aligns with:

  • IEC 62196 (1/2/3)
  • IEC 61851
  • EN 62196
  • SAE J1772
  • ISO 2768-m (tolerance control)

I. Incoming Material Quality Control

We ensure quality starts from raw materials. 99.9% oxygen-free copper / certified brass only Spectral composition verification Non-destructive defect inspection (cracks, pores, oxidation) Conductivity & hardness classification by application.Outcome: No recycled metals, no unstable conductivity, no hidden material defects.

II. Precision Machining Inspection

Strict dimensional control throughout production:Tolerance: ±0.03 ~ ±0.05 mm、Concentricity: ≤0.02 mm、Full burr-free surface inspection、First Article Inspection (FAI) + batch monitoring. Outcome: Smooth insertion, stable electrical contact, perfect connector compatibility.

III. Silver Plating Quality Assurance

Each pin is tested before shipment:Contact resistance testing、High-current load test (300–500A simulation)、Dielectric & insulation testing、Thermal rise verification. Outcome: Safe, stable fast-charging performance under real conditions.

IV. Electrical Performance Testing (100%)

Each pin is tested before shipment:Contact resistance testing、High-current load test (300–500A simulation)、Dielectric & insulation testing、Thermal rise verification. Outcome: Safe, stable fast-charging performance under real conditions.

V.Durability & Environmental Testing

Designed for global harsh environments:10,000+ mating cycles、-40°C to +150°C thermal cycling、500h salt spray corrosion test High humidity aging test. Outcome: Long-life reliability for public charging stations and EV systems.

VI. Final Inspection & Full Traceability

Before shipment: 100% final inspection (dimension + electrical + appearance)、IEC / EN / SAE test reports available、Full batch traceability system. Outcome: Easy certification, smooth customs clearance, zero blind risk.

Key Applications of EV Charging Connector Pins

Backed by Swiss-type precision machining, high-purity copper materials, and a globally compliant quality management system, Yumei Hardware’s EV charging connector pins are engineered for GB, IEC Type 2, and SAE J1772 charging interfaces. Designed to deliver low temperature rise, exceptional mating durability, superior oxidation resistance, and long-term reliability, our connector pins support a wide range of AC and DC charging applications across residential, commercial, fleet, and specialized electric vehicle sectors.

Residential EV Charging
Residential EV Charging

Reliable performance for daily home charging.

  • 7-pin AC charging connectors
  • Wall-mounted home chargers
  • Indoor & semi-enclosed environments
  • Passenger EVs, SUVs, plug-in hybrids

Key Value: Smooth insertion, corrosion resistance, maintenance-free operation.

Public DC Fast Charging
Public DC Fast Charging

Built for high-power, high-frequency use.

  • 300–500A high-current systems
  • 750V / 1000V DC charging
  • Urban stations & highway networks
  • Commercial charging hubs

Key Value: Low temperature rise, high conductivity, stable outdoor performance.

Commercial Fleet Charging
Commercial Fleet Charging

Designed for heavy-duty, frequent charging cycles

  • Electric buses & taxis
  • Ride-hailing & delivery vehicles
  • Logistics trucks & fleet depots

Key Value: 10,000+ mating cycles, reduced downtime, lower maintenance cost.

Energy Storage & Industrial Equipment
Energy Storage & Industrial Equipment

Reliable in harsh environments

  • Energy storage systems (ESS)
  • Construction & mining equipment
  • Port machinery & sanitation vehicles
  • Industrial charging systems

Key Value: Extreme temperature resistance, vibration durability, stable insulation.

Why Choose Yumei Hardware?

In a market flooded with low-cost EV connector pins, Yumei focuses on high-precision, high-reliability manufacturing—helping customers eliminate overheating, oxidation, poor contact, and batch inconsistency issues.

I. 100% In-House Manufacturing

From raw material to final inspection—fully controlled.

  • No outsourcing
  • Stable batch quality
  • Full production traceability

Value: Consistent quality for long-term supply.

II. Premium Raw Materials Only

We use T2 copper (≥99.9%) and certified brass only.

  • No recycled or mixed metals
  • High conductivity stability
  • Low temperature rise

Value: Prevents overheating and power loss.

III Swiss-Type Precision Machining

Higher accuracy than conventional CNC or stamping.

  • Micron-level precision
  • Excellent concentricity
  • Burr-free surface finish

Value: Smooth insertion & stable electrical contact.

IV. International Standard Quality System

Fully compliant with IEC / EN / SAE.

  • Salt spray & temperature tests
  • 10,000+ mating cycles
  • Full inspection reports

Value: Easy certification & global market access.

V. Advanced Silver Plating Technology

Optimized for power & signal performance.

  • Low resistance conductivity
  • Arc & wear resistance
  • Anti-oxidation protection

Value: Longer service life in harsh environments.

VI. Fast Delivery & Engineering Support

From prototype to mass production.

  • 24h rapid prototyping
  • 7–10 days stable lead time
  • Custom design support

Value: Faster development, lower risk, smoother scaling.

Built for Global EV Charging Reliability

With a fully integrated manufacturing system and international-standard engineering capability, Yumei Hardware delivers precision EV charging connector pins that ensure reliability, compliance, and performance across global charging infrastructure projects.

Looking for a reliable EV charging connector pin manufacturer?

👉 Visit: https://www.yumeihardware.com/
👉 Send your drawings for fast evaluation

✔ 12-hour quotation
✔ Engineering support
✔ Custom manufacturing

FAQ – EV Charging Pins

A: Copper is best for high-current fast charging; brass is ideal for cost-effective mass production.

A: It provides the lowest resistance and improves charging efficiency.

A: Typically ±0.03 mm for high-performance connectors.

A: Yes, fully based on drawings or samples.

A: With proper plating, they can withstand thousands of insertion cycles.

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