Terminals - Spade Connectors

Part Number	Description / PDF	Quantity
3240140 Phoenix Contact	CONN SPADE TERM 16-20AWG M5	0
3240149 Phoenix Contact	CONN SPADE TERM 10-12AWG M5	0
3240148 Phoenix Contact	CONN SPADE TERM 10-12AWG M4	0
3240141 Phoenix Contact	CONN SPADE TERM 16-20AWG M6	0
3240143 Phoenix Contact	CONN SPADE TERM 14-16AWG M3.5	0
3240150 Phoenix Contact	CONN SPADE TERM 10-12AWG M6	0
3240043 Phoenix Contact	CONN SPADE TERM 10-12AWG M5 YEL	20
3240039 Phoenix Contact	CONN SPADE TERM 14-16AWG M4 BLU	75561600
3240038 Phoenix Contact	CONN SPADE TERM 14-16AWG M3.5	0
3240137 Phoenix Contact	CONN SPADE TERM 16-20AWG M3	1729
3240139 Phoenix Contact	CONN SPADE TERM 16-20AWG M4	0
3240144 Phoenix Contact	CONN SPADE TERM 14-16AWG M4	0
3240145 Phoenix Contact	CONN SPADE TERM 14-16AWG M5	0
3240034 Phoenix Contact	CONN SPADE TERM 16-20AWG M4 RED	3151
3240045 Phoenix Contact	CONN SPADE TERM 10-12AWG M8 YEL	1023
3240146 Phoenix Contact	CONN SPADE TERM 14-16AWG M6	0
3240138 Phoenix Contact	CONN SPADE TERM 16-20AWG M3.5	0
3240042 Phoenix Contact	CONN SPADE TERM 10-12AWG M4 YEL	1743011850
3240033 Phoenix Contact	CONN SPADE TERM 16-20AWG M3.5	2574
3240040 Phoenix Contact	CONN SPADE TERM 14-16AWG M5 BLU	1198

Terminals - Spade Connectors

1. Overview

Spade connectors are electrical terminal devices featuring a flat, fork-shaped contact interface. They enable secure and removable connections between wires and electrical components. Widely used in automotive, industrial, and consumer electronics, these connectors ensure reliable power transmission while allowing easy maintenance and replacement.

2. Main Types & Functional Classification

Type	Functional Features	Application Examples
Insulated Spade	Plastic housing prevents short circuits	Automotive fuse boxes
Non-Insulated Spade	Bare metal contact for space-constrained applications	Industrial control panels
High-Temperature Spade	Heat-resistant materials up to 200 C	Engine compartment sensors
Metric/SAE Standard	Differentiated by blade width (6.3mm/4.8mm)	Global automotive systems
Quick-Disconnect Spade	Tool-free manual connection/disconnection	Consumer appliance maintenance

3. Structure & Composition

Typical spade connectors consist of:

Metal contact blade (phosphor bronze or beryllium copper)
Insulation housing (PVC or nylon)
Contact surface plating (tin, silver, or gold)
Wire crimping section with strain relief

4. Key Technical Specifications

Parameter	Typical Range	Importance
Current Rating	10-50A	Ensures thermal stability under load
Voltage Rating	250-600V	Prevents dielectric breakdown
Contact Resistance	5m	Minimizes power loss
Insertion Force	0.5-2.5N	Affects mating durability
Temperature Range	-40 C to +150 C	Determines environmental suitability
Cycling Durability	500-1000 cycles	Measures mechanical lifespan

5. Application Fields

Major application areas include:

Automotive systems (starter motors, relays)
Industrial machinery (PLC interfaces)
Consumer electronics (power tools, HVAC units)
Aerospace equipment (avionics subsystems)
Renewable energy systems (solar inverters)

6. Leading Manufacturers & Products

Manufacturer	Key Products	Special Features
TE Connectivity	Multi-Purpose Spade Series	UL94 V-0 rated insulation
Molex	Micro-Fit 3.0 Spade	Compact 3A rating design
Delphi Connection Systems	Weather-Pack Spade	IP67 waterproof rating
Yazaki Corporation	High-Temp Blade Connectors	200 C operational stability
3M	Scotchlok Spade Terminals	Pre-insulated vibration-resistant design

7. Selection Recommendations

Key selection criteria:

Determine current/voltage requirements with safety margins
Assess environmental factors (temperature, vibration)
Match connector size to wire gauge (AWG/mm )
Consider mating cycle frequency
Evaluate insulation needs based on installation location
Verify compliance with standards (ISO 8092, UL 1059)

8. Industry Trend Analysis

Emerging trends include:

Miniaturization for EV battery management systems
Development of hybrid connectors with integrated sensors
Increased adoption of RoHS-compliant materials
Growing demand for high-vibration-resistant designs
Smart connector integration with condition monitoring

Market projections indicate 4.2% CAGR growth (2023-2030) driven by automotive electrification and industrial automation advancements.