Terminals - Barrel, Bullet Connectors

Image Part Number Description / PDF Quantity Rfq
0190380037

0190380037

Woodhead - Molex

CONN TERM RCPT 18-22AWG CRIMP

2

0002081102

0002081102

Woodhead - Molex

CONN TERM RCPT 16-24AWG CRIMP

32088

0190360003

0190360003

Woodhead - Molex

CONN TERM PIN 18-22AWG CRIMP

1457

0190360006

0190360006

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

3329

0190340007

0190340007

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

290

0190360005

0190360005

Woodhead - Molex

CONN TERM PIN 18-22AWG CRIMP

0

0191640010

0191640010

Woodhead - Molex

CONN TERM PIN 18-22AWG CRIMP

2560

0190370006

0190370006

Woodhead - Molex

CONN TERM RCPT 14-16AWG CRIMP

11967

0190330007

0190330007

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

3190

0190390016

0190390016

Woodhead - Molex

CONN TERM RCPT 14-16AWG CRIMP

3980

0190350003

0190350003

Woodhead - Molex

CONN TERM PIN 18-22AWG CRIMP

1903

0190390009

0190390009

Woodhead - Molex

CONN TERM RCPT 14-16AWG CRIMP

125

0190370002

0190370002

Woodhead - Molex

CONN TERM RCPT 18-22AWG CRIMP

3297

0190340002

0190340002

Woodhead - Molex

CONN TERM PIN 18-22AWG CRIMP

1254

0190380001

0190380001

Woodhead - Molex

CONN TERM RCPT 18-22AWG CRIMP

31116

0190350012

0190350012

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

1070

0190340009

0190340009

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

0

0190350002

0190350002

Woodhead - Molex

CONN TERM PIN 18-22AWG CRIMP

0

0191640414

0191640414

Woodhead - Molex

CONN TERM RCPT 14-16AWG CRIMP

1106

0191640055

0191640055

Woodhead - Molex

CONN TERM RCPT 14-16AWG CRIMP

1087

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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