Mermaid
flowchart TD
   EXT1[“External Wire 1”]
   EXT2[“External Wire 2”]
   P1[“P1 Terminal Pin”]
   P2[“P2 Terminal Pin”]
   PCB_NET1[“NET1 on PCB”]
   PCB_NET2[“NET2 on PCB”]

   EXT1 --> P1 --> PCB_NET1
   EXT2 --> P2 --> PCB_NET2

1. Mechanical Footprint
   • 5.0 mm pin-to-pin spacing
   • Through-hole pins sized for up to ~12 AWG wire via screw clamp
   • Silkscreen marking for polarity or net names
2. Electrical Characteristics

   Table

   ---

   Parameter	Specification
   Rated Current	3 A – 10 A (typical)
   Voltage Rating	250 V AC / 300 V DC
   Contact Resistance	< 10 mΩ
   Insulation Resistance	> 100 MΩ

3. PCB Implementation
   • Two plated through-holes per pin for mechanical strength
   • Expanded annular rings to handle screw-terminal torque
   • Optionally tied to power planes or routed to on-board circuitry

• 5.0 mm Pitch
  • • Robust for thicker wires, easy screw access
  • – Consumes more board area vs. finer-pitch blocks (e.g., 3.5 mm)
• Through-Hole vs. SMT
  • Through-hole chosen for mechanical stability under repeated mating
  • SMT blocks exist but offer lower retention force
• Simple 2-Pin Only
  • • Minimal BOM cost and layout complexity
  • – Scalability requires duplicating footprint for multi-channel designs

• Vibration & Torque:
  Excessive vibration or overtightening can crack solder joints—consider staking adhesives or glues for high-vibration environments.
• Current Carrying Capacity:
  Ensure copper thickness and trace width match the terminal’s rated current to avoid overheating.
• Creepage & Clearance:
  High-voltage applications must respect board-level spacing rules around screw terminals.

• Power input/output headers for small controllers
• Sensor or actuator wiring in industrial control boards
• Field-serviceable connections in test fixtures

• Integrated Fuse or PTC: Add an onboard fuse footprint to protect downstream circuitry.
• Multi-Pole Variants: Design a 3- or 4-pin version by extending the footprint and silkscreen.
• Labeling & Polarity Marks: Enhance silkscreen with clear “+”/“–” or net names to reduce wiring errors.
• Mechanical Anchors: Include side-wall solder tabs or staking posts to further reinforce against torque.

• Clone and array this 2-pin module for higher channel counts
• Pair with on-board regulation or filtering sub-circuits
• Automate net labeling (e.g., “VIN”, “GND”) once the terminal is integrated into a larger schematic block