Compact, Reliable, and Efficient: Inside the Design of the 881 Series PCB Terminal Blocks

D-Sub Connectors

In the world of electronics, Printed Circuit Board (PCB) Terminal Blocks play a crucial role in ensuring safe and reliable wire-to-board connections. Among the many options available, the 881-Series D-Sub Connectors PCB Terminal Blocks stand out for their efficiency, flexibility, and superior performance.

While D-Sub Connectors are recognized for their durability in data and signal transmission, the 881-Series offers a dedicated, robust solution for power and control connections directly on the PCB.

Design and Construction: Built for Quality and Reliability

The 881-Series reflects a strong commitment to durability and engineering precision. Every component is designed to deliver long-term reliability under demanding conditions.

  • High-Quality Materials:
    These PCB terminal blocks are made from flame-retardant thermoplastic that conforms to UL94V-0 standards, ensuring excellent safety and resistance to heat.
  • Precision Terminals:
    Each terminal is precision-turned from a single piece, ensuring consistent performance, excellent conductivity, and mechanical strength.
  • Screw Options:
    The standard versions include brass screws (M3 size), while steel screw terminals can be supplied upon request for specific requirements.

Flexibility and Configuration: Pitch Perfect

One of the key highlights of the 881-Series D-Sub Connectors is its modular and flexible design, allowing users to choose configurations that fit their PCB layout and wiring needs.

5.0 mm Pitch Versions

Perfect for compact PCB designs, these terminal blocks save valuable board space.

  • Terminal Types: Available in straight and right-angle
  • Stackable Design: Easily stack 2-way or 3-way terminal blocks to create your desired configuration.
  • Pre-Assembled Options: Multi-way blocks (such as 2+2, 2+3, 3+3, or 3+3+2) are available for quick installation and customization.

10 mm Pitch Versions

For designs that require slightly larger terminal spacing, the 10 mm pitch version is the right choice.

  • Terminal Types: Offered in straight and right-angle
  • Common Configurations: Available in 2-way single, 3-way single, or 3-way dual terminal

Colour Options

To make wiring and identification easier, the 881-Series comes in three standard colours:
Black (A), Blue (B), and Grey (G)  selectable via ordering codes.

Technical Specifications: Engineered for Performance

The 881-Series PCB Terminal Blocks are designed to meet the demanding requirements of modern power and control systems.

CharacteristicSpecification
Current Rating16 A
Voltage Rating415 V AC
Insulation Resistance1000 MΩ min. at 500V DC
Dielectric Strength> 3 KV AC

Wire Capacity:

  • With protector: up to 0 sq. mm
  • Without protector: up to 5 sq. mm

Additionally, each terminal block includes a 1.1 mm test probe hole for convenient testing and maintenance access.

Why Choose the 881-Series PCB Terminal Blocks?

Whether used in industrial control systems, automation equipment, or electronic power boards, the 881-Series D-Sub Connectors delivers:

  • Compact and modular construction
  • High safety and durability standards
  • Multiple pitch and configuration options
  • Easy testing and maintenance
  • Excellent electrical ratings for reliable operation

Final Thoughts

The 881-Series PCB Terminal Blocks combine compact design, robust construction, and flexible configurations to create a dependable connection solution for PCB-based power and control circuits. Built with high-quality materials and precise engineering, these terminal blocks meet the stringent performance needs of modern electronics  making them a trusted choice for engineers and manufacturers alike.