Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
PV14-38RX-L Panduit Corporation	CONN RING CIRC 14-16AWG #3/8	340
PN10-6R-D Panduit Corporation	CONN RING CIRC 10-12AWG #6 CRIMP	5133000
PNF18-6R-3K Panduit Corporation	CONN RING CIRC 18-22AWG #6 CRIMP	3607
P12-8HDR-L Panduit Corporation	CONN RING CIRC 12-16AWG #8 CRIMP	237
PNF18-56R-M Panduit Corporation	CONN RING CIRC 18-22AWG #5/16	9984000
P22-4R-C Panduit Corporation	CONN RING CIRC 22-26AWG #4 CRIMP	0
PV14-14RX-L Panduit Corporation	CONN RING CIRC 14-16AWG #1/4	661800
PV10-6RX-L Panduit Corporation	CONN RING CIRC 10-12AWG #6 CRIMP	58
P18-4R-M Panduit Corporation	CONN RING CIRC 18-22AWG #4 CRIMP	19489
PN12-38HDR-L Panduit Corporation	CONN RING CIRC 12-16AWG #3/8	15
PN10-14RX-L Panduit Corporation	CONN RING CIRC 10-12AWG #1/4	66850
S8-14R-T Panduit Corporation	CONN RING FLAT 8AWG #1/4 CRIMP	4401200
PNF14-10R-C Panduit Corporation	CONN RING CIRC 14-16AWG #10	1936
PN12-14HDR-L Panduit Corporation	CONN RING CIRC 12-16AWG #1/4	2255500
PN12-6HDR-D Panduit Corporation	CONN RING CIRC 12-16AWG #6 CRIMP	1743
EV10-56RB-Q Panduit Corporation	STRONGHOLD RING TERMINAL, VINYL	3267
P4-38R-E Panduit Corporation	CONN RING CIRC 4AWG #3/8 CRIMP	263520
PV8-8R-TY Panduit Corporation	CONN RING CIRC 8AWG #8 CRIMP	455
PN18-12R-L Panduit Corporation	CONN RING CIRC 18-22AWG #1/2	193200
P10-56R-L Panduit Corporation	CONN RING CIRC 10-12AWG #5/16	10323200

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)