Shunts, Jumpers

Part Number	Description / PDF	Quantity
M7681-46 Harwin	14MM JUMPER SKT W/HNDL RED	27560
M7684-46 Harwin	CONN SHUNT 2POS W/HANDLE 2.54MM	0
D3089-98 Harwin	1MM INSULATED SHORTING PLUG	1402
M7767-05 Harwin	JUMPER SKT CLOSED TOP BLACK	3139
M22-1910005 Harwin	CONN JUMPER SHORTING GOLD BLUE	2261
M7682-46 Harwin	14MM JUMPER SKT W/HNDL BLACK	0
M50-1920005 Harwin	CONN SHUNT 1.27MM RED	1395
D3086-98 Harwin	1MM INSULATED SHORTING PLUG	0
M7967-05 Harwin	CLOSED TOP JUMPER SOCKET	3583
M50-2030005 Harwin	CONN SHUNT 1.27MM BLUE W/HANDLE	7698
M7571-05 Harwin	OPEN TOP JUMPER SOCKET MULTI-00E	6694
D3087-98 Harwin	1MM INSULATED SHORTING PLUG	266
D3086-97 Harwin	CONN SHUNT 2 POS 5.08MM	408
M7583-46 Harwin	JUMPER SKT OPEN TOP BLUE	0
D3080-05 Harwin	1MM UNINSULATED SHORTING PLUG	5335
M7683-46 Harwin	14MM JUMPER SKT W/HNDL BLUE	1559
D3087-99 Harwin	1MM INSULATED SHORTING PLUG	536
M7567-05 Harwin	JUMPER SOCKET SHORTING	2111
M7681-05 Harwin	14MM JUMPER SKT W/HNDL RED	12623
M22-1920046 Harwin	CONN JUMPER SHORTING TIN RED	8882

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.