Barrel - Audio Connectors

Part Number	Description / PDF	Quantity
TP-106 NEXUS (Amphenol NEXUS Technologies)	TELEPHONE PLUG INLINE 6 CONDUCTO	77
TJ-106 NEXUS (Amphenol NEXUS Technologies)	TELEPHONE JACK INLINE 6 CONDUCTO	18
MJ-122 NEXUS (Amphenol NEXUS Technologies)	MICROPHONE JACK - 2 CONDUCTOR	50
TJ-102 NEXUS (Amphenol NEXUS Technologies)	CONN JACK 4COND TJ-102	0
AP-107BR NEXUS (Amphenol NEXUS Technologies)	SEVEN CONDUCTRO WATERPROOF AUDIO	253
TJ-102SP NEXUS (Amphenol NEXUS Technologies)	TELEPHONE JACK INLINE 4 CONDUCTO	35
AP-107BRS NEXUS (Amphenol NEXUS Technologies)	SEVEN CONDUCTOR SHIELDED WATERPR	33
TJ-120 NEXUS (Amphenol NEXUS Technologies)	FLANGED REAR MOUNTED TELEPHONE J	38
OMJ-101 NEXUS (Amphenol NEXUS Technologies)	MICROPHONE JACK - 2 CONDUCTOR OV	119
MJ-101 NEXUS (Amphenol NEXUS Technologies)	CONN JACK MONO MIC JACK NYLON	82
TJT-102 NEXUS (Amphenol NEXUS Technologies)	TELEPONE JACK PANEL MOUNT THREAD	61
TP-120 NEXUS (Amphenol NEXUS Technologies)	TELEPHONE PLUG INLINE 4 CONDUCTO	303
TJS-108 NEXUS (Amphenol NEXUS Technologies)	TELEPHONE JACK SWITCH 8 CONDUCTO	8
TP-108 NEXUS (Amphenol NEXUS Technologies)	TELEPHONE PLUG INLINE 8 CONDUCTO	20
TJSS-108 NEXUS (Amphenol NEXUS Technologies)	TELEPHONE JACK DOUBLE SWITCH 8 C	8
TP-105 NEXUS (Amphenol NEXUS Technologies)	TELEPHONE PLUG INLINE 5 CONDUCTO	40
AP-107 NEXUS (Amphenol NEXUS Technologies)	SEVEN CONDUCTOR WATERPROOF AUDIO	43
TP-120-7 NEXUS (Amphenol NEXUS Technologies)	TELEPHONE PLUG INLINE 4 CONDUCTO	160
TJ-101NS NEXUS (Amphenol NEXUS Technologies)	TELEPHONE JACK 4 CONDUCTOR PANEL	14
TJ-101 NEXUS (Amphenol NEXUS Technologies)	TELEPHONE INLINE JACK 4 CONDUCTO	85

Barrel - Audio Connectors

1. Overview

Barrel audio connectors are cylindrical electro-mechanical interfaces primarily used for analog audio signal transmission or low-voltage power delivery. Defined by their coaxial structure with center pin and outer sleeve contacts, these connectors ensure reliable connectivity in audio equipment. Their importance in modern technology stems from their cost-effectiveness, durability, and ability to maintain signal integrity in critical applications ranging from consumer electronics to professional audio systems.

2. Major Types and Functional Classification

Type	Functional Characteristics	Application Examples
Standard Barrel	3.5mm/6.35mm diameter, unbalanced signal transmission	Headphone jacks, guitar cables
Locking Barrel	Threaded coupling mechanism for vibration resistance	Stage monitoring systems
Miniature Barrel	2.5mm/3.0mm size with compact design	Portable audio devices
Bantam Connector	Double-row configuration for space-constrained panels	Professional mixing consoles

3. Structure and Components

Typical construction includes: - Center Contact: Gold-plated phosphor bronze for signal transmission - Insulation Sleeve: High-temperature resistant thermoplastic - Outer Contact: Spring-loaded brass with EMI shielding - Housing: Nickel-plated brass or durable polymer The three-point contact design ensures mechanical stability while maintaining electrical continuity.

4. Key Technical Specifications

Parameter	Significance
Impedance (10k -1M )	Affects signal fidelity in audio circuits
Contact Resistance ( 5m )	Determines power transmission efficiency
Durability (5000+ cycles)	Reliability indicator for frequent connections
Frequency Range (20Hz-20kHz)	Audio signal bandwidth compatibility
Shielding Effectiveness ( 60dB)	EMI/RFI interference reduction

5. Application Fields

Consumer Electronics: Smartphones, laptops
Professional Audio: Mixing consoles, studio monitors
Instrumentation: Electric guitars, synthesizers
Medical Devices: Patient monitoring systems

6. Leading Manufacturers and Products

Manufacturer	Representative Product
Amphenol Audio	NE800 Series Switchcraft jacks
Neutrik	NCJ6FX nickel-plated connectors
Switchcraft	ONA Series locking audio connectors
Molex	Micro-Lock plus contact systems

7. Selection Recommendations

Consider: 1. Mechanical requirements (panel space, insertion force) 2. Electrical parameters (impedance matching, current rating) 3. Environmental factors (temperature range, corrosion resistance) 4. Termination type (solder vs. PCB mount) 5. Compliance standards (RoHS, REACH) For live sound applications, prioritize locking mechanisms and gold-plated contacts.

8. Industry Trends

Current trends include: - Miniaturization for wearable devices (sub-2mm designs) - Integration with digital signal paths (analog-digital hybrid connectors) - Enhanced shielding for 5G coexistence - Biodegradable polymer housing development - Smart connectors with integrated presence detection Market growth projected at 4.2% CAGR through 2027 driven by immersive audio technologies.