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SA381-3.5/3.81 PCB Screw Terminal Block

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Description Product Details PDF Download

SA381-3.5/3.81 PCB Screw Terminal Block is a high-reliability, space-saving wire-to-board connector for industrial control, power supplies, instrumentation, and automotive electronics. Designed for mass wholesale and global export, it combines stable screw locking, dual-pitch compatibility (3.5 mm / 3.81 mm), and long-term performance to meet international assembly and OEM requirements. Optimized for Google indexing, this page clearly presents specifications, advantages, certifications, and bulk-order support.



Key Product Advantages
Dual Pitch Compatibility: Supports 3.5 mm and 3.81 mm pin spacing for broad PCB layout flexibility
Secure Screw Clamp: Self-lifting screw design prevents loss; ensures consistent, vibration-resistant connections
Flame-Retardant Housing: PA66 insulation with UL94 V-0 rating for safe industrial use
High Conductivity: Brass alloy, tin-plated contacts reduce resistance and improve longevity
Modular & Stackable: 2P–24P configurable; end-to-end stacking saves PCB area
RoHS & REACH Compliant: Meets EU and global environmental directives
Wave & Manual Solder Compatible: Supports mass production and prototyping workflows


SA381-3.5/3.81 PCB Screw Terminal Block is widely used in:
Industrial control modules & PLC
Switching power supplies & drivers
Lighting control & electrical panels
Automotive electronics & instrumentation
Home appliances & consumer electronics
Communication equipment & IoT devices



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Company Profile Precision Engineered, Perfectly Protected

Ningbo Sanan Electronic Technology Co., Ltd. engages in engineering development, technological research, and experimental development. It specializes in the design, R&D, manufacturing, and sales of high-quality terminal blocks, connectors, and enclosures. With continuous management improvement and business development, the company has a professional team, advanced mold manufacturing equipment, and automated production facilities. Integrating multiple related businesses, it continuously improves production capacity and optimizes costs. Its products are sold well in many countries and regions, serving industries such as industrial automation, instrumentation, power engineering, elevators, lighting, communications, and security.

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