Jumpers & Shunts

Jumpers and shunts are devices used in circuits to close, open or bypass part of the circuit. Jumpers are often used in the design of printed circuit boards such as motherboards, whereas shunts have a wide range of applications, such as in Christmas tree lights where they can bypass faulty bulbs.

How do jumpers and shunts work?

Jumpers work by using pairs of contact points called jumper points to complete the circuit when the jumper sleeve is connected to them, creating another path for the current in a circuit. The jumper is electrically conductive, but usually encased in a plastic block to ensure that the jumper will not cause a short.

Shunts work by creating a low resistance path in the circuit, so that the current may pass around another point. This can be useful when one part of a circuit is defective.

Types of jumpers and shunts

Jumpers and shunts can have differing numbers of contacts and rows, as well as being of varying sizes. The contact material and plating can also differ.


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Description Price Type Number of Contacts Pitch Gender Colour Number of Rows Length Width Depth Series Contact Material Contact Plating Orientation Maximum Contact Resistance
RS Stock No. 251-8503
BrandRS PRO
HK$2.647
Each (In a Pack of 10)
units
Closed Top 2 2.54mm Female Black 1 4.98mm 6.47mm 2.44mm - Phosphor Bronze Tin over Nickel Straight 20mΩ
RS Stock No. 771-0117
Mfr. Part No.65474-001LF
HK$3.286
Each (In a Pack of 10)
units
Closed Top 2 2.54mm Female Blue 1 9.78mm 5.21mm 2.54mm Mini-Jump Brass Gold over Nickel Straight 15mΩ
RS Stock No. 334-561
Mfr. Part No.M7571-05
BrandHARWIN
HK$2.472
Each (In a Pack of 5)
units
Open Top 2 2.54mm Female Blue 1 - - - - - Gold Straight 30mΩ
RS Stock No. 173-0822
Mfr. Part No.M7571-05
BrandHARWIN
HK$1.061
Each (In a Bag of 1000)
units
Open Top 2 2.54mm Female Blue 1 - - - - - Gold Straight 30mΩ
RS Stock No. 170-8848
Mfr. Part No.65474-001LF
HK$2.74
Each (In a Bag of 500)
units
Closed Top 2 2.54mm Female Blue 1 9.78mm 5.21mm 2.54mm Mini-Jump Brass Gold over Nickel Straight 15mΩ
RS Stock No. 909-4382
Mfr. Part No.M50-1900005
BrandHARWIN
HK$1.978
Each (In a Pack of 20)
units
Jumper 2 1.27mm Female Black 1 2.5mm 1.5mm 3mm Archer M50 Copper Alloy Gold over Nickel Straight 20mΩ
RS Stock No. 135-5103
Mfr. Part No.881545-2
HK$0.83
Each (In a Bag of 14000)
units
Handle, Open Top 2 2.54mm Female Black 1 5.08mm 2.5mm 10.9mm AMPMODU NOVO Phosphor Bronze Gold over Nickel Straight 15mΩ
RS Stock No. 680-2394
Mfr. Part No.881545-2
HK$1.35
Each (In a Pack of 100)
units
Handle, Open Top 2 2.54mm Female Black 1 5.08mm 2.5mm 10.9mm AMPMODU NOVO Phosphor Bronze Gold over Nickel Straight 15mΩ
RS Stock No. 251-8698
BrandRS PRO
HK$2.713
Each (In a Pack of 10)
units
Open Top 2 2.54mm Female Red 1 4.98mm 5.97mm 2.44mm - Phosphor Bronze Tin Straight 7mΩ
RS Stock No. 863-2949
Mfr. Part No.65474-010LF
HK$2.173
Each (In a Pack of 100)
units
Jumper 2 2.54mm Female Blue 1 9.78mm 2.54mm 5.21mm Mini-Jump Copper Alloy Gold - 15mΩ
RS Stock No. 251-8569
BrandRS PRO
HK$3.031
Each (In a Pack of 10)
units
Open Top 2 2.54mm Female Black 1 4.98mm 6.47mm 2.44mm - Phosphor Bronze Tin over Nickel Straight 75mΩ
RS Stock No. 771-0111
Mfr. Part No.65474-002LF
HK$1.689
Each (In a Pack of 10)
units
Closed Top 2 2.54mm Female Blue 1 9.78mm 5.21mm 2.54mm Mini-Jump Brass Tin Straight 15mΩ
RS Stock No. 251-8575
BrandRS PRO
HK$2.972
Each (In a Pack of 10)
units
Closed Top, Handle Pull 2 2.54mm Female Black 1 4.98mm 14mm 2.44mm - Phosphor Bronze Tin over Nickel Straight 20mΩ
RS Stock No. 279-9853
Mfr. Part No.JSA4-16-G0
BrandERG
HK$75.24
Each
units
Jumper Switch 16 2.54mm - - 1 40.64mm 8.4mm 6.1mm - - - Straight 15mΩ
RS Stock No. 270-6261
Mfr. Part No.90059-0007
BrandMolex
HK$4.058
Each (In a Pack of 5)
units
Open Top 2 2.54mm Female Black 1 5.1mm 2.54mm 4.85mm C-Grid Phosphor Bronze Tin over Nickel Straight 15mΩ
RS Stock No. 170-8847
Mfr. Part No.65474-002LF
HK$1.318
Each (In a Bag of 500)
units
Closed Top 2 2.54mm Female Blue 1 9.78mm 5.21mm 2.54mm Mini-Jump Brass Tin Straight 15mΩ
RS Stock No. 180-9353
Mfr. Part No.M22-1900005
BrandHARWIN
HK$1.978
Each (In a Pack of 10)
units
Open Top 2 2mm Female Black 1 3.9mm 3.5mm 1.95mm - Beryllium Copper Gold Straight 20mΩ
RS Stock No. 245-4487
Mfr. Part No.609058200010
HK$4.428
Each (In a Bag of 50)
units
Uninsulated 2 5.08mm Male - 1 5.68mm 6.5mm - - Brass Tin over Copper Straight -
RS Stock No. 181-5617
Mfr. Part No.D308699
BrandHARWIN
HK$6.89
Each (In a Bag of 25)
units
Closed Top 2 5.08mm Male Red 1 9.5mm 12.7mm 3.2mm - Brass Gold Straight -
RS Stock No. 173-0829
Mfr. Part No.M22-1900005
BrandHARWIN
HK$1.129
Each (In a Bag of 1000)
units
Open Top 2 2mm Female Black 1 3.9mm 3.5mm 1.95mm - Beryllium Copper Gold Straight 20mΩ
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