Terminals - Quick Connects, Quick Disconnect Connectors

Part Number	Description / PDF	Quantity
0190070082 Woodhead - Molex	CONN QC RCPT 10-12AWG 0.250	444
42743-2 TE Connectivity AMP Connectors	CONN QC RCPT 18-22AWG 0.250	0
63445-4 TE Connectivity AMP Connectors	CONN QC RCPT 12-18AWG 0.250	6548
ED18-250-L Panduit Corporation	STRONGHOLD FEMALE DISCONNECT, NO	4426
DNF18-111-M Panduit Corporation	CONN QC RCPT 18-22AWG 0.110	9814000
640911-1 TE Connectivity AMP Connectors	CONN QC RCPT 18-22AWG 0.205	4085
42844-1 TE Connectivity AMP Connectors	CONN QC RCPT 12-14AWG 0.250	0
1217558-2 TE Connectivity AMP Connectors	CONN QC TAB 0.250	239407
0190010009 Woodhead - Molex	CONN QC TAB 14-16AWG 0.187 CRIMP	3074
MNHU14-250DFIX-BOTTLE 3M	CONN QC RCPT 14-16AWG 0.250 25PC	40
63634-1 TE Connectivity AMP Connectors	CONN QC RCPT 22-24AWG 0.110	0
42599-2 TE Connectivity AMP Connectors	CONN QC RCPT 18-22AWG 0.250	399
0190170047 Woodhead - Molex	CONN QC RCPT 10-12AWG 0.250	2250
76-FD22-187 NTE Electronics, Inc.	NON INS FEM DISCON 22-18G	2642
141352-2 TE Connectivity AMP Connectors	CONN QC RCPT 18-22AWG 0.110	0
DNFR14-250FIB-M Panduit Corporation	CONN QC RCPT 14-16AWG 0.250	7200
1289-ST Keystone Electronics Corp.	CONN QC TAB 0.250 SOLDER	2147483647
175164-1 TE Connectivity AMP Connectors	CONN QC RCPT 14-18AWG 0.250	2959
170340-1 TE Connectivity AMP Connectors	CONN QC TAB 14-20AWG 0.250 CRIMP	17688
DNF18-250FIMB-L Panduit Corporation	CONN QC TAB 18-22AWG 0.250 CRIMP	135750

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