Terminals - Barrel, Bullet Connectors

Image Part Number Description / PDF Quantity Rfq
2-1377174-4

2-1377174-4

TE Connectivity AMP Connectors

CONN TERM PIN 15-20AWG CRIMP

0

0197234100

0197234100

Woodhead - Molex

CONN TERM RCPT 14-18AWG CRIMP

0

60440-1

60440-1

TE Connectivity AMP Connectors

CONN TERM RCPT 18-22AWG CRIMP

0

0190350008

0190350008

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

0

0002081103

0002081103

Woodhead - Molex

CONN TERM RCPT 24-30AWG CRIMP

0

SPF-01T-2.5C

SPF-01T-2.5C

JST

CONN TERM RCPT 20-24AWG CRIMP

0

2-1377174-8

2-1377174-8

TE Connectivity AMP Connectors

CONN TERM SHUR-PLUG

0

9-170003-5

9-170003-5

TE Connectivity AMP Connectors

CONN TERM RCPT 14-20AWG CRIMP

0

0190340010

0190340010

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

0

1217074-2

1217074-2

TE Connectivity AMP Connectors

CONN TERM RCPT 8AWG CRIMP

0

329317

329317

TE Connectivity AMP Connectors

CONN SPLICE 22-24 AWG LANCELOK

0

0197234203

0197234203

Woodhead - Molex

CONN TERM RCPT 14-18AWG CRIMP

0

0190330008

0190330008

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

0

9200690000

9200690000

Weidmuller

CONN TERM PIN CRIMP

0

0191640314

0191640314

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

0

1217400-1

1217400-1

TE Connectivity AMP Connectors

CONN TERM RCPT 10-14AWG CRIMP

0

0197234101

0197234101

Woodhead - Molex

CONN TERM RCPT 14-18AWG 7M/REEL

0

0190340053

0190340053

Woodhead - Molex

CONN TERM PIN 14-16AWG 50/BAG

0

0197244100

0197244100

Woodhead - Molex

CONN TERM PIN 14-18AWG CRIMP

0

0190390035

0190390035

Woodhead - Molex

CONN TERM RCPT 18-22AWG CRIMP

0

Terminals - Barrel, Bullet Connectors

1. Overview

Barrel and Bullet connectors are cylindrical electrical connectors primarily used for power transmission and signal routing. Barrel connectors typically feature a concentric conducting surface separated by insulation, while Bullet connectors use a single-pin design with high-conductivity materials. These connectors play critical roles in consumer electronics, industrial equipment, and automotive systems due to their reliability and compact design.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Barrel ConnectorsCoaxial design with center pin and outer sleeveAC/DC power adapters, audio equipment
Bullet ConnectorsSingle-contact cylindrical designEV charging systems, RC drones, battery packs
Locking BarrelThreaded or snap-lock mechanismIndustrial machinery, medical devices
High-Current BulletGold-plated contacts for minimal resistanceElectric vehicles, robotics

3. Structure and Composition

Barrel connectors typically consist of three main components: 1) Center contact pin (phosphor bronze with gold plating), 2) Insulating dielectric (polyamide or PBT), 3) Outer conductive sleeve (nickel-plated brass). Bullet connectors feature a precision-machined single contact element with spring-loaded retention mechanisms. Both types utilize thermoplastic housings for strain relief and environmental protection.

4. Key Technical Specifications

ParameterSignificance
Current Rating (3-30A)Determines power transmission capacity
Voltage Range (12-600V)Defines operational safety limits
Contact Resistance (<2m )Affects thermal performance
Insulation Resistance (>100M )Ensures dielectric integrity
Mating Cycles (500-10,000)Indicates mechanical durability

5. Application Fields

  • Consumer Electronics: Laptop power supplies, audio interfaces
  • Industrial: CNC machine tooling, automated test equipment
  • Automotive: Battery management systems, charging stations
  • Renewable Energy: Solar inverters, wind turbine controllers

6. Leading Manufacturers and Products

ManufacturerRepresentative Product
AmphenolPowerGuard High-Current Barrel Connectors
TE ConnectivityMini-Fit Jr. Bullet Connectors
MolexMX150L High-Temperature Connectors
DelphiEvolution Series Automotive Connectors

7. Selection Recommendations

Key considerations include: 1) Current requirements (use 20% derating factor), 2) Environmental conditions (temperature range, IP rating), 3) Mechanical constraints (space limitations, mating force). For medical applications, specify Agilent-grade insulation materials. For outdoor EV charging stations, prioritize IP67-rated waterproof designs. Always verify compatibility with cable gauge specifications.

8. Industry Trends

Key developments include: miniaturization (sub-2mm diameters), hybrid connectors combining power/signal transmission, smart connectors with integrated sensors, and eco-friendly manufacturing processes reducing RoHS compliance risks. The global market is projected to grow at 6.8% CAGR through 2030, driven by EV and IoT device adoption.

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