Shunts, Jumpers

Image	Part Number	Description / PDF	Quantity	Rfq
	390102-1 TE Connectivity AMP Connectors	CONN SHUNT 4POS 2X2 OPEN TOP	0
	881545-3 TE Connectivity AMP Connectors	SHUNT LP W/HANDLE 2 POS 50AU	0
	2-880584-1 TE Connectivity AMP Connectors	SHUNT CONN. ASSY	0
	4-881545-1 TE Connectivity AMP Connectors	AMP SHUNT ASSY	0
	1-880584-1 TE Connectivity AMP Connectors	SHUNT CONN ASSY	0
	390102-2 TE Connectivity AMP Connectors	CONN SHUNT 6POS 2X3 OPEN TOP	0
	84944-1 TE Connectivity AMP Connectors	2.54 MM SHUNT (TY)	0
	1-880584-4 TE Connectivity AMP Connectors	SHUNT CONN. ASS'Y	0
	880584-7 TE Connectivity AMP Connectors	AMP SHUNT CONNECTOR ASSY	0

Shunts, Jumpers

1. Overview

Connectors, interconnects, shunts, and jumpers are fundamental components in electronic and electrical systems. Connectors enable separable electrical connections, interconnects provide permanent or semi-permanent wiring solutions, shunts allow controlled current diversion, and jumpers create configurable circuit paths. These components play critical roles in system flexibility, maintenance, and performance across industries such as telecommunications, automotive, and industrial automation.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Connectors	Line/receptacle interfaces with mechanical coupling	RJ45 for Ethernet, USB Type-C for consumer devices
Interconnects	Fixed wiring assemblies with terminations	PCB-to-PCB ribbon cables in servers
Shunts	Low-resistance paths for current measurement or bypass	Power supply current monitoring circuits
Jumpers	Manual configuration switches using conductive bridges	BIOS configuration on motherboards

3. Structure and Composition

Connectors typically consist of contact pins (phosphor bronze with gold plating), insulating housings (LCP or nylon), and shielding (nickel-plated brass). Shunts use manganin alloy elements with tin/copper terminals for low TCR. Jumpers employ PBT resin bodies with phosphor bronze contacts. Interconnects combine stranded copper conductors with PVC/LSZH insulation in ribbon or round cable configurations.

4. Key Technical Parameters

Parameter	Importance	Typical Values
Current Rating	Determines power handling capability	0.5A-300A
Contact Resistance	Impacts signal integrity and power loss	1-50m
Dielectric Strength	Safety isolation between contacts	500V-5kV
Insertion Loss	Critical for high-frequency signal transmission	0.1-3.0dB
Temperature Range	Environmental operating limits	-55 C to +125 C

5. Application Fields

Telecommunications: 5G base stations, fiber optic cross-connects
Automotive: CAN bus systems, battery management jumpers
Industrial: PLC interconnect cabling, motor drive shunts
Consumer Electronics: Wearable device connectors, PCB jumpers
Renewable Energy: Solar inverter DC shunts, wind turbine slip rings

6. Leading Manufacturers and Products

Manufacturer	Key Products	Specialization
Amphenol	RADIAL-Lok circular connectors	Aerospace & military applications
TE Connectivity	MULTIGIG backplane connectors	High-speed data centers
Bourns	CSM Series current sense shunts	Power electronics monitoring
Molex	SL Series wire-to-board jumpers	Automotive control systems

7. Selection Recommendations

Current/Voltage Requirements: Select ratings with 20% safety margin
Environmental Factors: Consider corrosion resistance for marine applications
Space Constraints: Use SMD jumpers for high-density PCB layouts
Signal Integrity: Choose controlled impedance connectors for >1Gbps signals
Certifications: Ensure compliance with UL/CSA/IEC standards

8. Industry Trends

Key developments include: miniaturization (0.4mm pitch connectors), high-speed signal transmission (56Gbps+ backplane connectors), smart shunts with integrated sensors, and eco-friendly materials meeting RoHS/REACH. The rise of electric vehicles is driving demand for high-voltage interconnect systems, while 5G infrastructure requires connectors with improved EMI shielding. Programmable electronic jumpers are emerging as alternatives to physical hardware configuration.