Terminals - Barrel, Bullet Connectors

Image Part Number Description / PDF Quantity Rfq
60799-4

60799-4

TE Connectivity AMP Connectors

CONN TERM RCPT 14-18AWG CRIMP

17815

0190350009

0190350009

Woodhead - Molex

CONN TERM PIN 14-16AWG CRIMP

857

1742039-1

1742039-1

TE Connectivity AMP Connectors

CONN TERM PIN 10-14AWG CRIMP

5164

0190350001

0190350001

Woodhead - Molex

CONN TERM PIN 18-22AWG CRIMP

780

60798-6

60798-6

TE Connectivity AMP Connectors

CONN TERM RCPT 14-18AWG CRIMP

0

0190350004

0190350004

Woodhead - Molex

CONN TERM PIN 18-22AWG CRIMP

0

62416-1

62416-1

TE Connectivity AMP Connectors

CONN TERM PIN 20-24AWG CRIMP

9481

76-IBD22

76-IBD22

NTE Electronics, Inc.

PVC INS BULLET DISC 22-18

1611

76-FIRD12L

76-FIRD12L

NTE Electronics, Inc.

PVC INS RECEPT DISC 12-10 50 BAG

7

40652

40652

TE Connectivity AMP Connectors

CONN TERM RCPT 18-20AWG CRIMP

0

EBV14-4MB-Q

EBV14-4MB-Q

Panduit Corporation

STRONGHOLD MALE BULLET DISCONNEC

212552675

MNG18-156DFIK-A

MNG18-156DFIK-A

3M

CONN TERM RCPT 18-22AWG CRIMP

0

42749-1

42749-1

TE Connectivity AMP Connectors

CONN TERM RCPT R/A 16-20AWG

0

60885-2

60885-2

TE Connectivity AMP Connectors

CONN TERM RCPT 20-24AWG CRIMP

0

60354-7

60354-7

TE Connectivity AMP Connectors

CONN TERM RCPT 26-28AWG CRIMP

0

170002-7

170002-7

TE Connectivity AMP Connectors

CONN TERM PIN 14-20AWG CRIMP

0

76-FIRD16

76-FIRD16

NTE Electronics, Inc.

PVC FULLY INS RECEPTACLE

74

61119-1

61119-1

TE Connectivity AMP Connectors

CONN TERM RCPT FLAG 20-24AWG

0

0190340005

0190340005

Woodhead - Molex

CONN TERM PIN 18-22AWG CRIMP

25056

0190390023

0190390023

Woodhead - Molex

CONN TERM RCPT 14-16AWG CRIMP

2716

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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