Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
8-31895-1 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG #5/16	800
34833 TE Connectivity AMP Connectors	CONN RING CIRC 10-12AWG #3/8	0
51864-3 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG #6 CRIMP	3320
62613-2 TE Connectivity AMP Connectors	CONN RING CIRC 10-12AWG #10	64495
52041-1 TE Connectivity AMP Connectors	CONN RING CIRC 8AWG #1/4 CRIMP	2094
1-331420-0 TE Connectivity AMP Connectors	CONN RING CIRC 4AWG #5/16 CRIMP	663
61904-1 TE Connectivity AMP Connectors	CONN RING D-SHAPE 16-20AWG CRIMP	0
8-34163-1 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG #5/16	1000
2-36149-4 TE Connectivity AMP Connectors	CONN RING CIRC 20AWG #6 CRIMP	8369
8-323915-1 TE Connectivity AMP Connectors	CONN RING CIRC 22-26AWG #6 CRIMP	241
55936-2 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG #1/4	2949
2-328999-1 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG #3/8	4519
42721-1 TE Connectivity AMP Connectors	CONN RING OVAL 16-20AWG CRIMP	30003
8-53941-1 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG #8 CRIMP	477
2-320564-2 TE Connectivity AMP Connectors	CONN RING CIRC 14AWG #3/8 CRIMP	4797
54311-1 TE Connectivity AMP Connectors	CONN RING CIRC 24-26AWG #8 CRIMP	2645
8-53409-1 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG #10	975
8-34140-1 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG #2 CRIMP	43
34168 TE Connectivity AMP Connectors	CONN RING CIRC 10-12AWG #6 CRIMP	0
33466-1 TE Connectivity AMP Connectors	CONN RING CIRC 6AWG #5/16 CRIMP	2764

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)