Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
322328 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG #4 CRIMP	517
324082 TE Connectivity AMP Connectors	CONN RING CIRC 8AWG #1/4 CRIMP	0
320627 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG #8 CRIMP	0
2-36149-2 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG #6 CRIMP	3092
321288 TE Connectivity AMP Connectors	CONN RING SLOTTED 16-22AWG #4	1
322419 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG #4 CRIMP	3976
2-31090-1 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG #5 CRIMP	11291
321201 TE Connectivity AMP Connectors	CONN RING CIRC 2AWG #1/4 CRIMP	71
320569 TE Connectivity AMP Connectors	CONN RING CIRC 10-12AWG #1/4	4274
1377173-9 TE Connectivity AMP Connectors	CONN RING CIRC 10-12AWG #8 CRIMP	385
61546-1 TE Connectivity AMP Connectors	CONN RING CIRC 6-10AWG #5/16	6083
60394-1 TE Connectivity AMP Connectors	CONN RING CIRC 16-20AWG #10	0
2-320572-3 TE Connectivity AMP Connectors	CONN RING CIRC 20AWG #5/16 CRIMP	754
321060 TE Connectivity AMP Connectors	CONN RING CIRC 4AWG #5/16 CRIMP	0
184068-1 TE Connectivity AMP Connectors	CONN RING CIRC 2AWG CRIMP	364
321580 TE Connectivity AMP Connectors	CONN RING CIRC 1/0AWG #5/16	0
130106 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG M5 CRIMP	16482
134021-1 TE Connectivity AMP Connectors	CONN RING CIRC 16AWG M5 CRIMP	4854
1-36270-1 TE Connectivity AMP Connectors	CONN RING CIRC 10-12AWG #8 CRIMP	9297
324615 TE Connectivity AMP Connectors	CONN RING CIRC 10-12AWG #5/8	218

Terminals - Ring Connectors

1. Overview

Ring connectors are cylindrical metallic terminals with a closed loop at one end, designed to establish secure electrical connections between wires and screw-type terminals. They prevent wire fraying and ensure stable contact in high-vibration environments. Critical for power transmission and signal integrity in industrial and automotive systems.

2. Main Types & Functional Classification

Type	Functional Features	Application Examples
Open Barrel Ring	Split design for easy wire insertion	Battery terminals, control panels
Closed Barrel Ring	360 compression for maximum conductivity	High-vibration machinery
Insulated Ring	Polymer coating for short-circuit prevention	Automotive electronics

3. Structure & Composition

Typical construction includes:

Copper alloy body (C11000/C14500) with tin/nickel plating
Insulation sleeve (PVC/nylon, 105 C rating)
Barrel section with 2-3 crimping zones for wire retention
Loop diameter tolerance 0.1mm for screw compatibility

4. Key Technical Specifications

Parameter	Typical Range	Importance
Ampacity	10-150A	Current carrying capacity
Contact Resistance	0.5-5m	Power loss prevention
Dielectric Strength	1kV-5kV	Insulation reliability
Vibration Resistance	15G @ 10Hz-2kHz	Automotive compliance

5. Application Fields

Primary industries:

Automotive (battery cables, alternator connections)
Industrial automation (PLC terminals, motor drives)
Renewable energy (solar charge controllers)
Aerospace (avionics grounding systems)

6. Leading Manufacturers & Products

Manufacturer	Product Series	Key Features
TE Connectivity	DT Ring Terminals	Corrosion-resistant alloy, 125A rating
Phoenix Contact	RTME Series	Push-in wire connection, 600V compliance
Sumitomo Electric	HR4H-S-DC5V	Automotive-grade tin-plated copper

7. Selection Guidelines

Key considerations:

Current/voltage requirements
Wire gauge compatibility (AWG 22-4/0)
Environmental factors (temperature, humidity, vibration)
UL/CSA certification for safety compliance
Color-coded insulation for circuit identification

8. Industry Trends

Emerging developments include:

Miniaturization for EV battery management systems
Graphene-enhanced plating for corrosion resistance
Smart connectors with integrated current sensing
Lead-free manufacturing processes (RoHS compliance)