Terminals - PC Pin, Single Post Connectors

Part Number	Description / PDF	Quantity
7464004 Würth Elektronik Midcom	CABLE CONNECTOR FOR DIRECT PLUG	720
1402-3 Keystone Electronics Corp.	CONN PC PIN CIRC 0.040DIA GOLD	102333200
4118-0-00-15-00-00-03-0 Mill-Max	SQUARE PRESS-FIT NAIL HEAD PCB P	5742
3609-3-07-21-00-00-08-0 Mill-Max	CONN PC PIN CIRC 0.080DIA GOLD	464
1421-1 Keystone Electronics Corp.	CONN PC PIN CIRC 0.025DIA TIN	21800
H2101B01 Harwin	CONN PC PIN CIRC 0.038DIA TIN	0
0522-0-00-15-00-00-03-0 Mill-Max	CONN PC PIN CIRC 0.018DIA GOLD	17400
3139-0-00-21-00-00-08-0 Mill-Max	CONN PC PIN CIRC 0.049DIA GOLD	1446
5317-0-00-15-00-00-03-0 Mill-Max	HEX PRESS FIT, NAIL HEAD PCB PIN	1865
3115-1-00-15-00-00-08-0 Mill-Max	CONN PC PIN CIRC .025DIA GOLD	3738
4658-0-00-80-00-00-08-0 Mill-Max	CONN PC PIN CIRC .040 DIA TIN	18050
2-928776-7 TE Connectivity AMP Connectors	CONN PC PIN SQUARE 0.025 TIN	0
3117-2-00-21-00-00-08-0 Mill-Max	CONN PC PIN CIRC 0.024DIA GOLD	7843
1372-1 Keystone Electronics Corp.	CONN PC PIN CIRC 0.020DIA GOLD	668400
1067-1-00-15-00-00-03-0 Mill-Max	CONN PC PIN CIRC 0.018DIA GOLD	2505
3104-2-00-34-00-00-08-0 Mill-Max	CONN PC PIN CIRC 0.040DIA GOLD	788
380-10-001-00-000800 Mill-Max	INSULATED TERMINAL PIN	4417
640967-2 TE Connectivity AMP Connectors	CONN PC PIN CIRC 0.058DIA GOLD	13770
9242-0-00-80-00-00-08-0 Mill-Max	CONN PC PIN CIRC .083 DIA TIN	312
640394-1 TE Connectivity AMP Connectors	CONN PC PIN CIRC 0.058DIA TIN	0

Terminals - PC Pin, Single Post Connectors

1. Overview

PC Pin and Single Post Connectors are critical components in electrical systems, providing reliable termination points for wire connections. PC Pin connectors feature male pins designed for printed circuit board (PCB) mounting, while Single Post Connectors utilize a single terminal post for wire attachment. These connectors enable efficient signal and power transmission across diverse industries, from consumer electronics to industrial automation.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
PC Pin Connectors	Right-angle or straight PCB-mount pins, gold-plated contacts, snap-in retention	Computer motherboards, network switches, power supplies
Single Post Connectors	Single screw/nut termination, insulation displacement, vibration-resistant	Lighting fixtures, HVAC systems, control panels
High-Current PC Pins	Large contact area, heat-resistant materials	Electric vehicle charging stations, industrial motors
Microminiature Posts	Sub-5mm terminal size, surface-mount design	Medical sensors, wearable devices

3. Structure and Components

Typical construction includes:

Conductive Core: Phosphor bronze or beryllium copper with plating (gold, tin, or nickel)
Insulation Housing: UL94 V-0 rated thermoplastic or glass-reinforced nylon
Retention Mechanism: Integral locking tabs (PC Pin) or screw terminals (Single Post)
Environmental Sealing: Optional silicone gaskets for IP67 protection

4. Key Technical Parameters

Parameter	Importance	Typical Range
Current Rating	Determines power handling capability	1-50A
Contact Resistance	Impacts signal integrity and power loss	1-10m
Dielectric Strength	Ensures electrical isolation safety	500-2500VAC
Operating Temperature	Defines environmental suitability	-55 C to +150 C
Mating Cycles	Indicates mechanical durability	500-10,000 cycles

5. Application Fields

Consumer Electronics: Smartphone battery connectors, laptop power ports
Industrial Automation: PLC I/O modules, sensor interface terminals
Transportation: Automotive ECU connectors, railcar control systems
Energy Systems: Solar inverter DC terminals, battery storage racks

6. Leading Manufacturers

Manufacturer	Representative Product	Key Features
TE Connectivity	AMP PC Blade	12V high-current automotive power distribution
Phoenix Contact	ST Single Post	Push-in wire connection technology
Molex	Mini50 PC Pin	0.5mm pitch for compact medical devices
Yazaki	WS250 Single Post	Automotive-grade vibration resistance

7. Selection Recommendations

Key considerations:

Current/voltage requirements vs. conductor cross-sectional area
Space constraints (height profile for PCB-mounted types)
Environmental factors (temperature, humidity, vibration)
Compliance standards (RoHS, UL, IEC specifications)
Tooling requirements for field installation

Example: For a 24V industrial control application, select IP67-rated Phoenix Contact ST series with screw terminal for 2.5mm wire.

8. Industry Trends

Current developments include:

Miniaturization: 0.8mm pitch PC Pin connectors for 5G infrastructure
Smart integration: Connectors with built-in current sensing capabilities
Material innovation: Graphene-enhanced contacts for 30% higher conductivity
Automated assembly: Self-aligning posts for robotic manufacturing
Environmental focus: Halogen-free insulation materials compliant with REACH regulations

Market forecasts predict 6.2% CAGR through 2028 driven by automotive electrification and IoT device growth.