Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
2-130008-1 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG M5 CRIMP	9454
PN10-38R-L Panduit Corporation	CONN RING CIRC 10-12AWG #3/8	222
0191930243 Woodhead - Molex	CONN RING FLAT 6AWG #8 CRIMP	1209
2-35107-1 TE Connectivity AMP Connectors	CONN RING CIRC 10-12AWG #6 CRIMP	7737
PN14-12R-Q Panduit Corporation	CONN RING CIRC 14-16AWG #1/2	3310425
160032 TE Connectivity AMP Connectors	CONN RING CIRC 6AWG M10 CRIMP	4117
36922-1 TE Connectivity AMP Connectors	CONN RING CIRC 1/0AWG #5/16	276
8-54771-1 TE Connectivity AMP Connectors	CONN RING MULT STUD 16-22AWG	900
61556-1 TE Connectivity AMP Connectors	CONN RING CIRC 16-22AWG CRIMP	6214
PV14-38R-M Panduit Corporation	CONN RING CIRC 14-16AWG #3/8	1973
EV8-14R-Q Panduit Corporation	STRONGHOLD RING TERMINAL, VINYL	223917075
35149 TE Connectivity AMP Connectors	CONN RING CIRC 10-12AWG #6 CRIMP	6280
PV18-38RB-2K Panduit Corporation	CONN RING CIRC 18-22AWG #3/8	2192
P18-10RHT6-C Panduit Corporation	CONN RING CIRC 18-22AWG #10	1861300
51861-4 TE Connectivity AMP Connectors	CONN RING CIRC 14-16AWG #10	4800
P4-12R-T Panduit Corporation	CONN RING CIRC 4AWG #1/2 CRIMP	365
350199-1 TE Connectivity AMP Connectors	CONN RING CIRC 14-18AWG #10	9974
51864-9 TE Connectivity AMP Connectors	CONN RING CIRC 14AWG #10 CRIMP	6258
52273-1 TE Connectivity AMP Connectors	CONN RING CIRC 20AWG #4 CRIMP	9590
P2-56R-X Panduit Corporation	CONN RING CIRC 2AWG #5/16 CRIMP	0

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)