Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
0190730040 Woodhead - Molex	CONN RING CIRC 18-22AWG #6 CRIMP	2168
135536-1 TE Connectivity AMP Connectors	CONN RING D-SHAPE 3/0AWG #3/8	100
76-IRT16-3/8L NTE Electronics, Inc.	PVC INS RING TERM 16-14WG 50 BAG	3
PV8-38R-QY Panduit Corporation	CONN RING CIRC 8AWG #3/8 CRIMP	200
2-36161-4 TE Connectivity AMP Connectors	CONN RING CIRC 10AWG #10 CRIMP	3123
34111 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG #8 CRIMP	3757
P12-10HDR-L Panduit Corporation	CONN RING CIRC 12-16AWG #10	3941550
0190730010 Woodhead - Molex	CONN RING CIRC 18-22AWG #6 CRIMP	7048
323008 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG #6 CRIMP	5366
35669 TE Connectivity AMP Connectors	CONN RING CIRC 4AWG #5/8 CRIMP	0
8-55854-2 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG #5/16	163
PN14-4R-3K Panduit Corporation	CONN RING CIRC 14-16AWG #4 CRIMP	6000
PV8-56R-TY Panduit Corporation	CONN RING CIRC 8AWG #5/16 CRIMP	1
30996 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG #8 CRIMP	860
42751-1 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG CRIMP	0
PN14-6RX-C Panduit Corporation	CONN RING CIRC 14-16AWG #6 CRIMP	165700
2-34852-1 TE Connectivity AMP Connectors	CONN RING CIRC 10-12AWG #6 CRIMP	3307
0192210461 Woodhead - Molex	CONN RING FLAT 4AWG #5/16 CRIMP	212
31895 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG #5/16	5384
0191930036 Woodhead - Molex	CONN RING CIRC 18-22AWG #8 CRIMP	2797

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)