Terminals - Quick Connects, Quick Disconnect Connectors

Part Number	Description / PDF	Quantity
63901-1 TE Connectivity AMP Connectors	CONN QC RCPT 14-18AWG 0.250	0
76-IMD22-110C NTE Electronics, Inc.	PVC INS MALE DISCON 22-18 100 BA	5
0190030021 Woodhead - Molex	CONN QC RCPT 18-22AWG 0.187	3353
0190070008 Woodhead - Molex	CONN QC RCPT 18-22AWG 0.250	1072
0190180044 Woodhead - Molex	CONN QC RCPT 24-26AWG 0.187	1120
DV18-188B-MY Panduit Corporation	CONN QC RCPT 18-22AWG 0.187	1111
1742899-1 TE Connectivity AMP Connectors	CONN QC RCPT 16-18AWG 0.187	6544
640909-2 TE Connectivity AMP Connectors	CONN QC RCPT 18-22AWG 0.205	36013
D14-187-M Panduit Corporation	CONN QC RCPT 14-16AWG 0.187	5195000
63952-1 TE Connectivity AMP Connectors	CONN QC TAB 0.250 SOLDER	0
0190120032 Woodhead - Molex	CONN QC RCPT/TAB 14-16AWG 0.250	299
154717-1 TE Connectivity AMP Connectors	CONN QC RCPT 11-13.5AWG 0.250	100722
1217281-3 TE Connectivity AMP Connectors	CONN QC RCPT 20-24AWG 0.110	26385
5-1377174-1 TE Connectivity AMP Connectors	SMP 0-0140814-1	1263
170122-2 TE Connectivity AMP Connectors	CONN QC RCPT 18-22AWG 0.205	0
63097-2 TE Connectivity AMP Connectors	CONN QC RCPT 14-18AWG 0.250	12000
63606-3 TE Connectivity AMP Connectors	CONN QC RCPT 14-18AWG 0.187	5644
DNF14-188FIB-3K Panduit Corporation	CONN QC RCPT 14-16AWG 0.187	520
DNF14-110-C Panduit Corporation	CONN QC RCPT 14-16AWG 0.110	2422000
880688-1 TE Connectivity AMP Connectors	.250 SERIES FASTIN-	0

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