Terminals - Quick Connects, Quick Disconnect Connectors

Part Number	Description / PDF	Quantity
0380020084 Woodhead - Molex	CONN QC TAB 0.250	44086000
0196060001 Woodhead - Molex	CONN QC RCPT 10-12AWG 0.250	1909
0190190005 Woodhead - Molex	CONN QC RCPT 18-22AWG 0.110	7500
0192770005 Woodhead - Molex	CONN QC RCPT 14-16AWG 0.250	86
0197134001 Woodhead - Molex	CONN QC TAB 0.250 SOLDER	570
0190090001 Woodhead - Molex	CONN QC RCPT 18-22AWG 0.250	321
0190160003 Woodhead - Molex	CONN QC RCPT 18-22AWG 0.110	6668
0191640076 Woodhead - Molex	CONN QC RCPT 10-12AWG 0.250	3643
0190230006 Woodhead - Molex	CONN QC TAB 18-22AWG 0.250 CRIMP	2472
0190030108 Woodhead - Molex	CONN QC RCPT 18-22AWG 0.187	9486
0190170037 Woodhead - Molex	CONN QC RCPT 14-16AWG 0.250	5925
0190070028 Woodhead - Molex	CONN QC RCPT 14-16AWG 0.250	4238
0190030135 Woodhead - Molex	CONN QC RCPT 14-16AWG 0.187	7603
0190170041 Woodhead - Molex	CONN QC RCPT 14-16AWG 0.250	638
0190050004 Woodhead - Molex	CONN QC RCPT 18-22AWG 0.250	3454
0192760005 Woodhead - Molex	CONN QC RCPT 14-16AWG 0.250	9931
0190020031 Woodhead - Molex	CONN QC RCPT 14-16AWG 0.187	2918000
0192030390 Woodhead - Molex	CONN QC RCPT 14-16AWG 0.250	1360375000
0190220009 Woodhead - Molex	CONN QC TAB 18-22AWG 0.187 CRIMP	0
0190060004 Woodhead - Molex	CONN QC RCPT 18-22AWG 0.250	63

Terminals - Quick Connects, Quick Disconnect Connectors

1. Overview

Quick connects/disconnects (QCDs) are electrical connectors designed for rapid, tool-free connection and disconnection of circuits. These components enable efficient maintenance, modular system design, and reliable signal/power transmission in complex systems. Their importance spans across industries requiring frequent interface changes while maintaining electrical integrity.

2. Major Types & Functional Classification

Type	Functional Features	Application Examples
Single-contact QCDs	Simple push-pull mechanism, 1-10A rating	Consumer electronics peripherals
Multicontact Array	Parallel signal/power paths, IP67 rated	Industrial automation equipment
Hydraulic Couplings	Fluid-tight sealing, 3000psi pressure	Construction machinery hydraulics
Blade Terminals	Tab-width standardized (4.8-9.5mm), vibration-resistant	Automotive electrical systems
Push-to-Connect	Self-locking collet mechanism, 0.5s engagement	Medical device rapid deployment

3. Structural Composition

Typical QCD construction includes:

Dielectric housing (PA66, LCP, or PBT materials)
Contact elements (phosphor bronze, beryllium copper)
Retention mechanism (spring-loaded collets, detent balls)
Environmental seals (EPDM or silicone O-rings)
Strain relief components (integral cable clamps)

4. Key Technical Parameters

Parameter	Typical Range	Significance
Contact Resistance	1-10 m	Directly affects power loss
Insulation Resistance	100M -10G	Ensures circuit isolation
Operating Temperature	-55 C to +150 C	Determines environmental suitability
Insertion Force	5-50N	Impacts user experience
Durability	500-10,000 cycles	Service life indicator

5. Application Fields

Primary industries include:

Automotive (EV charging interfaces, sensor harnesses)
Aerospace (avionics rack connections)
Industrial Automation (robotic arm tooling)
Medical (patient monitoring equipment)
Telecommunications (base station RF connections)

6. Leading Manufacturers

Manufacturer	Representative Product	Key Specification
TE Connectivity	MICRO SWITCH QT	IP69K rated, 1000VAC
Molex	PicoBlade 0.8mm	0.3A contact rating
Amphenol	QCD Series 262	Hydraulic 3000psi capability
Weidm ller	OMQ Quick Connect	Vibration-proof design
Delphi	Metri-Pack 150	Automotive standard

7. Selection Guidelines

Key considerations:

Current/voltage requirements (derating factors)
Environmental protection needs (IP rating)
Engagement/disengagement frequency
Space constraints (3D footprint)
Material compatibility (corrosion resistance)
Certification requirements (UL, CE, MIL-STD)

8. Industry Trends

Current development trends include:

Nanocoating integration for corrosion resistance
Smart connectors with embedded sensors
Miniaturization (sub-mm contact spacing)
High-temperature superconducting materials
Automated mating systems for Industry 4.0