PCB terminal blocks & connectors

PCB Terminal Blocks & Connectors for Industrial Electronics

SUPU provides plug-in, fixed, barrier, transformer, feed-through, crimp, and direct-crimp PCB terminals for reliable signal, data, and power transmission.

Connection options Plug-in, fixed, barrier, transformer, feed-through, crimp, and direct-crimp options
PCB layout fit 2.5-15 mm pin spacing for compact board design
Process support 0.2-35 mm² wiring range with wave and reflow soldering support
ISO 9001 certification logo
ISO 14001 certification logo
ISO 45001 certification logo
UL certification logo
CE conformity logo
TÜV Rheinland logo
DNV logo

Globally Certified for Industrial Reliability

SUPU R&D Strength

Independent Innovation

160+Engineers
100+Patents
8+Dev Software & Platform
6%+R&D Investment
Product range

Choose the right PCB terminal or connector.

Compare product family, board fit, process compatibility, and next action before sending a drawing, BOM, or sample request.

SUPU plug-in terminal plug product family
Connection flexibility

Plug-in Terminal Plug

Best for: configurable plug-in wiring across signal and power boards Key feature: screw, cage spring, PUSH IN, and puncture connection options
Core parameters: Pitch 2.5-10.16 mm · Range 0.5-16 mm² 150-1000 V · 4-76 A
SUPU plug-in terminal socket product family
Removable interface

Plug-in Terminal Socket

Best for: serviceable PCB interfaces and different-angle wiring Key feature: single- and double-layer designs support wave and reflow soldering
Core parameters: Pitch 2.5-10.16 mm · Range 0.2-6 mm² 125-1000 V · 4-76 A
SUPU fixed PCB terminal product family
Board-level wiring

Fixed Terminal

Best for: direct signal, data, and power connection on the PCB Key feature: screw, cage spring, and PUSH IN options in integrated or split designs
Core parameters: Pitch 2-24 mm · Range 0.2-35 mm² 160-1000 V · 6-125 A
SUPU barrier terminal product family
Power equipment

Barrier Terminal

Best for: equipment and cabinet installation in high-power applications Key feature: welding, feed-through, and relay-type configurations
Core parameters: Pitch 9.52-27 mm · Multiple mounting options Up to 600 V · Up to 180 A
SUPU transformer terminal product family
Equipment manufacturing

Transformer Terminal

Best for: transformer and electrical equipment manufacturing Key feature: convenient screw-connected wiring for production assembly
Core parameters: Range 0.2-10 mm² 600-750 V · 10-57 A
SUPU feed-through terminal product family
Panel pass-through

Feed-through Terminal

Best for: tool-free wiring through equipment housings and panels Key feature: screw, spring-plate, and bolt options in horizontal or vertical layouts
Core parameters: Range 0.2-25 mm² 500-800 V · 41-101 A
SUPU crimp terminal product family
Cold-pressed harness

Crimp Terminal

Best for: multi-row wire-to-board harness connections Key feature: male and female cold-pressed connector configurations
Core parameters: Pitch 5.08/6.35 mm · Range 0.2-2.5 mm² 320-600 V · 5-12 A
SUPU direct crimp connector product family
Direct wire connection

Direct Crimp Connectors

Best for: reliable direct wire connection with fewer assembly steps Key feature: mechanical cold pressing stabilizes the wire connection
Connection method: Mechanical cold pressing Stable connection · Simplified operation
Need help choosing? Send your specs → Send Your Requirements
How to choose

Not sure which model fits your project?

Send us your wiring diagram, BOM, or project requirements. SUPU engineers will help recommend the right solution.

Why SUPU

PCB connection support behind the product range.

Support for PCB terminal selection, drawing review, sample requests, and technical requirements across industrial electronics applications.

25+ years experience

Industrial electrical connection experience for PCB terminal and equipment customers worldwide.

Two production bases

Manufacturing capability to support standard PCB terminal products and project requirements.

Products exported to XX+ countries

Global product supply and technical support for industrial electronics applications.

160+ R&D engineers

R&D, production, sales, and service integration supports customized PCB terminal solutions.

Application scenarios

Built for real industrial electronics contexts.

Each application ties back to board layout, signal, data, power, installation efficiency, or equipment reliability.

Smart buildings application scenario

Smart Buildings

Scenario Overview

Building controllers must fit more I/O into compact enclosures while remaining easy to service. SUPU plug-in and fixed PCB terminals cover 2.5-15 mm pin spacing and support modular board maintenance.

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Industry automation application scenario

Industry Automation

Scenario Overview

Automation equipment must balance fast assembly with stable signal and power transmission. SUPU PCB terminals support wave and reflow soldering to improve production compatibility and maintenance efficiency.

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Power industry application scenario

Power Industry

Scenario Overview

Power modules need clear separation between high-current paths and sensitive control circuits. SUPU barrier and feed-through terminals provide structured PCB-to-external wiring paths across compact power equipment.

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Transportation systems application scenario

Transportation Systems

Scenario Overview

Transportation electronics face vibration, restricted service windows, and dense wire-to-board layouts. SUPU plug-in and crimp connector options support stable contact and faster replacement during maintenance.

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New energy application scenario

New Energy

Scenario Overview

New-energy equipment combines dense control signals with demanding power paths and production consistency. SUPU fixed, barrier, and feed-through PCB terminals support varied wiring ranges and scalable equipment assembly.

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Scenario Overview

Power modules need clear separation between high-current paths and sensitive control circuits. SUPU barrier and feed-through terminals provide structured PCB-to-external wiring paths across compact power equipment.

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Downloads & technical resources

Download PCB terminal selection guides.

Use selection material when comparing product family, pin spacing, soldering process, wiring range, and PCB layout constraints before sending a quote request.

  • PCB Connector and Terminal Selection Guide
  • Product catalogue and datasheet request path
  • Drawing / BOM review and recommendation follow-up
Get Selection Guide

Send Your PCB Requirements

Upload a PCB layout, drawing, BOM, or product list so the team can recommend a suitable PCB terminal or connector series.

FAQ

Frequently Asked Questions

MOQ, lead time, customization, replacement selection, and certifications for high-intent PCB terminal buyers.

Standard products: MOQ 100 pieces. Custom products: MOQ depends on specifications, typically 500-1000 pieces.

Samples: 3-5 business days. Standard bulk orders: 2-4 weeks. Custom products: 4-8 weeks depending on complexity.

Yes. SUPU has 160+ R&D engineers and in-house mold making capability. Send your specifications for a free feasibility assessment.

Yes. Send us the competitor model number (Phoenix Contact, Weidmüller, WAGO, etc.) and our engineers will provide a cross-reference recommendation within 24 hours.

UL, CE, TÜV, VDE, CQC, CCC, ISO9001, IATF16949, and IRIS. Full certification documents are available upon request.

Final CTA

Need help selecting PCB terminal blocks & connectors?

Tell us your board layout, pin spacing, wiring range, soldering process, and target application. SUPU will help you find the right PCB terminal or connector direction.

SUPU DIN rail terminal blocks
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