Home - AOSI Terminal Blocks & Module Manufacturer | Industrial Connectivity Solutions

5.0mm Tool-Free Spring Terminal Blocks

Tool-Free Spring Connection
Standard 5.0mm Pitch for PCB Mounting
Multi-Layer & Space-Saving Design
Modular Configuration from 1P to 36P

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Multi input and output rail-type power terminal block

Spring type interface / screw type interface optional
4/6/8/12/16 channels in various specifications
Applicable to multiple proximity switches, photoelectric switches, magnetic switches and other sensors

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2p 3p 4p 5p Push in Quick Wire Connector

Supports multi-input and multi-output customization
Excellent conductivity,Zero-fire separation design
Universal for soft and hard lines

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RJ45 network signal transfer terminal block

Screw-type wiring is easy to operate
Supports DIN rail installation
Suitable for PLC controllers, electrical controls, data converters, etc.

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Multi input and output rail-type power terminal block

Spring type interface / screw type interface optional
4/6/8/12/16 channels in various specifications
Applicable to multiple proximity switches, photoelectric switches, magnetic switches and other sensors

> Learn More

2p 3p 4p 5p Push in Quick Wire Connector

Supports multi-input and multi-output customization
Excellent conductivity,Zero-fire separation design
Universal for soft and hard lines

> Learn More

RJ45 network signal transfer terminal block

Screw-type wiring is easy to operate
Supports DIN rail installation
Suitable for PLC controllers, electrical controls, data converters, etc.

> Learn More

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About Us

Dongguan AOSI Electronics Co., Ltd. is a professional manufacturer specializing in terminal blocks and modular connectors with over 15 years of experience. We provide complete OEM & ODM services, offering reliable and space-saving connection solutions for industrial automation, electrical equipment, and control systems.

With modern production facilities in Dongguan and a highly efficient team, our monthly output exceeds 1 million units, ensuring consistent quality and timely delivery. We operate under an ISO 9001-certified system, and all products undergo 100% electrical and performance testing before shipment.

AOSI products are certified to meet CE, RoHS, REACH, and other international standards. We serve customers in over 100 countries, including system integrators, OEMs, and distributors across Europe, Asia, and the Americas.

We focus on innovation, quality, and service, aiming to be your trusted partner in reliable electrical connectivity.

Years

ODM/OEM
Experience

150

Employees

12000

m²

Plant Area

1 Million

Monthly Production

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Innovative Ultra-Thin Double-Layer Pluggable Terminal Blocks

Multiple pitch option: 3.5mm/3.81mm/5.0mm/5.08mm/7.62mm

Offers perfectly matched male and female headers

Ultra-Thin & Compact Profile

Stable & Reliable Transmission

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Modular Interfaces & High-Performance Terminal Blocks

an innovative combination of D-sub connectors and terminal blocks, this solution offers highly integrated modularity to simplify system design and wiring, ideal for specialized applications.

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DIN Rail RJ45 Terminal Block Module

RJ45 Ethernet Port

Tool-Free Spring Wiring

DIN Rail Compatible

Modular and Expandable Design

Industrial-Grade Durability

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Push-in Pluggable Dual-Row Terminal Blocks

Innovative push-in design allows for quick wire insertion and secure termination without the need for screws, significantly boosting installation efficiency.