10 Terminal Blocks To Supercharge Your Next PCB Design

June 6, 2018Elizabeth Bustamante

Terminal blocks offer designers an easy and secure way to transmit data, signals, and power to your printed circuit board designs.  They’re built from an insulating frame and a clamping component. Terminal blocks serve as an effective method of connecting wires, whether it’s to ground them, secure multiple wires together, or provide communication between a device and a controller.

Although terminal blocks can be classified according to their device type and structure, there are some extra considerations that should be taken into account when selecting a terminal block for your design. These factors include:

  • Mounting type (DIN rail versus mounted on a PCB)
  • Type of connection (normally you will have either a screw-in or plug-in connection)
  • Orientation (45°, 90°, or 180°)
  • Number of positions
  • Nominal voltage and current (make sure that the terminal blocks meet the voltage and current that will flow throughout your PCB)
  • Wire gauge range
  • Screw torque

Among the most popular terminal blocks with hardware designers, you will find a TE Connectivity terminal block with a nominal current of 13.5 A, 300 V, 5.08 mm pitch. Also represented are terminal block connectors from Wago, Phoenix Contact, and Wurth Electronics. All of the symbols & footprints for these connectors are available for download on SnapEDA!

Let’s take a look at the top 10 Terminal Blocks on SnapEDA!

#10- 1776266-4 by TE Connectivity

This PCB terminal block has 4 positions,  5.0 mm pitch, current rating 10 A, voltage 300 V, wire gauge 14-22 AWG, screw torque 0.51 Nm, operating temperature -55°C ~ 105°C and through-hole technology

Average price across distributors at time of publish: NA

handsnap Download Symbol & Footprint on SnapEDA (Eagle, Altium, OrCAD, Allegro, KiCad, PADS, PCB123)

 

#9- 691709710302 by Wurth Electronics

This screw terminal has 2 positions, 5.0 mm pitch, current rating 6 A, voltage 300 V, wire gauge 14-30 AWG, screw torque 0.4 Nm, operating temperature -40°C ~ 115°C and surface mount technology.

Average price across distributors at time of publish: $2.79 USD

handsnap Download Symbol & Footprint on SnapEDA (Eagle, Altium, OrCAD, Allegro, KiCad, PADS, PCB123)

 

#8- OSTTA020161 by On-Shore Technology

This screw terminal has 2 positions, 5.0 mm pitch, current rating 16 A, voltage 250 V, wire gauge 14-26 AWG, screw torque 0.3 Nm, operating temperature -30°C ~ 105°C and through-hole technology.

Average price across distributors at time of publish: $0.67 USD

handsnap Download Symbol & Footprint on SnapEDA (Eagle, Altium, OrCAD, Allegro, KiCad, PADS, PCB123)

 

#7- 282834-2 by TE Connectivity

This screw terminal block has 2 positions, 2.54 mm pitch, current rating 10 A, voltage 150 V, wire gauge 16-30 AWG, screw torque 0.2 Nm, operating temperature -40°C ~ 105°C and through-hole technology.

Average price across distributors at time of publish: $0.88 USD

handsnap Download Symbol & Footprint on SnapEDA (Eagle, Altium, OrCAD, Allegro, KiCad, PADS, PCB123)

 

#6- 1792229 by Phoenix Contact

This PCB terminal block has 2 positions, 7.5 mm pitch, current rating 41 A, voltage 1 kV, wire gauge 10-24 AWG, push-lock spring connection, and through-hole technology.

Average price across distributors at time of publish: $4.13 USD

handsnap Download Symbol & Footprint on SnapEDA (Eagle, Altium, OrCAD, Allegro, KiCad, PADS, PCB123)

#5- 1862658 by Phoenix Contact

The 1862658 is a 10-position Terminal Block, 3.81 mm pitch, current rating 8 A, voltage 320 V, right angle orientation, and through-hole technology.

Average price across distributors at time of publish: $10.80 USD

handsnap Download Symbol & Footprint on SnapEDA (Eagle, Altium, OrCAD, Allegro, KiCad, PADS, PCB123)

 

#4- 691102710002 by Wurth Electronics

The 691102710002 is a 2-position PCB Terminal Block, 5.0 mm pitch, current rating 15 A, voltage 300 V, wire gauge 14-22 AWG, screw torque 0.3 Nm, operating temperature -40°C ~ 105°C and through-hole technology.

Average price across distributors at time of publish: $1.04 USD

handsnap Download Symbol & Footprint on SnapEDA (Eagle, Altium, OrCAD, Allegro, KiCad, PADS, PCB123)

 

#3- 282836-2 by TE Connectivity

This Euro Style terminal block has 2 positions, 5.0 mm pitch, current rating 13.5 A, voltage 300 V, wire gauge 16-30 AWG, screw torque 0.68 Nm, and through-hole technology.

Average price across distributors at time of publish: $0.71 USD

handsnap Download Symbol & Footprint on SnapEDA (Eagle, Altium, OrCAD, Allegro, KiCad, PADS, PCB123)

 

#2- 250-204 by Wago

The 250-204 is a 4-position PCB Terminal Block, 3.5 mm pitch, current rating 8 A, voltage 300 V, wire gauge 16-24 AWG, compact terminal strips with push-buttons, operating temperature -60°C ~ 105°C and through-hole technology.

Average price across distributors at time of publish: $0.71 USD

handsnap
 Download Symbol & Footprint on SnapEDA (Eagle, Altium, OrCAD, Allegro, KiCad, PADS, PCB123)

And the top terminal block on SnapEDA is…

 

#1- 282837-2 by TE Connectivity

The 282837-2 is a 2-position Terminal Block, 5.08 mm pitch, current rating 13.5 A, voltage 300 V, wire gauge 16-28 AWG, screw torque 0.68 Nm, and through-hole technology.

Average price across distributors at time of publish: $1.04 USD

handsnap
 Download Symbol & Footprint on SnapEDA (Eagle, Altium, OrCAD, Allegro, KiCad, PADS, PCB123)

* This data is based on downloads of symbols & footprints on SnapEDA. Browse more terminal blocks here.

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