Terminals - Barrel, Bullet Connectors

Image Part Number Description / PDF Quantity Rfq
0190330001

0190330001

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

3848

0190330005

0190330005

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

285

0190390002

0190390002

Woodhead - Molex

CONN TERM RCPT 18-22AWG CRIMP

47

0190390001

0190390001

Woodhead - Molex

CONN TERM RCPT 18-22AWG CRIMP

0

0191640052

0191640052

Woodhead - Molex

CONN TERM RCPT 18-22AWG CRIMP

0

0190380007

0190380007

Woodhead - Molex

CONN TERM RCPT 14-16AWG CRIMP

2141

0190360009

0190360009

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

60178000

0190350009

0190350009

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

857

0190350001

0190350001

Woodhead - Molex

CONN TERM PIN 18-22AWG CRIMP

780

0190350004

0190350004

Woodhead - Molex

CONN TERM PIN 18-22AWG CRIMP

0

0190340005

0190340005

Woodhead - Molex

CONN TERM PIN 18-22AWG CRIMP

25056

0190390023

0190390023

Woodhead - Molex

CONN TERM RCPT 14-16AWG CRIMP

2716

0190380009

0190380009

Woodhead - Molex

CONN TERM RCPT 14-16AWG CRIMP

335

0002081101

0002081101

Woodhead - Molex

CONN TERM RCPT 16-24AWG CRIMP

28571

0190330003

0190330003

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

3096

0190380006

0190380006

Woodhead - Molex

CONN TERM RCPT 18-22AWG CRIMP

290

0191640054

0191640054

Woodhead - Molex

CONN TERM RCPT 14-16AWG CRIMP

1410

0190390018

0190390018

Woodhead - Molex

CONN TERM RCPT 14-16AWG CRIMP

10271

0191640053

0191640053

Woodhead - Molex

CONN TERM RCPT 18-22AWG CRIMP

1788

0190380004

0190380004

Woodhead - Molex

CONN TERM RCPT 18-22AWG CRIMP

22834000

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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