Weidmüller 1001250000 LSF-SMT 3.50/12/90 3.5SN BK TU PRT PCB Terminal Guide
The Weidmüller 1001250000 LSF-SMT 3.50/12/90 3.5SN BK TU PRT is a PCB terminal developed for direct board connection in compact industrial electronics. Unlike pluggable female connectors, this product belongs to the printed circuit board terminal category and is intended to deliver dependable conductor termination directly on the PCB. In applications where compact design, efficient assembly, and stable wiring performance are all important, the Weidmüller 1001250000 PCB terminal can be a very strong fit.
What the Weidmüller 1001250000 Is
This product is part of the OMNIMATE Signal range and falls within the LSF-SMT family. It is a PCB terminal with a 3.50 mm pitch, 12 poles, and a 90° conductor orientation. The product naming also indicates a 3.5 mm solder pin length and a black housing. It uses PUSH IN with actuator technology and is designed around SMT or THR-related assembly workflows within modern electronics manufacturing. That makes the Weidmüller 1001250000 especially relevant where board density and automated production processes matter.
Core Technical Characteristics
The Weidmüller 1001250000 LSF-SMT 3.50/12/90 3.5SN BK TU PRT is a 12-pole PCB terminal with a 3.50 mm pitch and a 90° wire outlet. Product-family information for this series identifies PUSH IN spring connection technology, a maximum clamping range of 1.5 mm², and a conductor range of 0.2 to 1.5 mm². Comparable 12-pole LSF-SMT 3.50 products with the same orientation and solder pin length in the official range are listed at 320 V and 17.5 A under IEC, and 300 V and 12 A under UL, which reflects the electrical framework this product family is designed for.
Why a 3.50 mm PCB Terminal Is Useful
In compact electronics, a 3.50 mm pitch is often chosen when designers need more connection density than a 5.08 mm system would allow. The Weidmüller 1001250000 PCB terminal supports that design direction by offering a narrower pitch while still maintaining practical industrial connection performance. This is particularly helpful in compact controllers, communication modules, measurement devices, and space-sensitive industrial electronics.
Why 12 Poles Matter
A 12-pole terminal gives designers the ability to handle multiple signals or grouped functions in a single organized connection block. That can reduce the number of separate terminal points on the board and help create a cleaner interface layout. The Weidmüller 1001250000 LSF-SMT 3.50/12/90 3.5SN BK TU PRT is especially useful in products where multiple channels need to remain clearly grouped while keeping the PCB footprint efficient.
PUSH IN with Actuator and SMT-Focused Design
The PUSH IN with actuator concept is valuable because it supports fast conductor insertion and secure retention. In addition, the SMT-oriented terminal design aligns with production environments that aim for efficient automated board assembly. That combination of installation convenience and manufacturing compatibility is one of the main reasons products in the LSF-SMT family remain relevant for modern electronics development.
Typical Applications
The Weidmüller 1001250000 is suitable for compact industrial controllers, interface electronics, communication modules, PCB-based automation products, monitoring devices, and OEM equipment where a 12-pole terminal with 3.50 mm pitch is appropriate. The black housing supports a neutral, professional appearance and can work well in standardized product designs.
For more information about Weidmüller, it is worth comparing adjacent LSF-SMT variants by pitch, pole count, and conductor outlet angle before finalizing a design.
FAQ
What is the Weidmüller 1001250000?
It is a PCB terminal for direct board connection in industrial electronics.
What pitch does the Weidmüller 1001250000 LSF-SMT 3.50/12/90 3.5SN BK TU PRT use?
It uses a 3.50 mm pitch.
How many poles does this PCB terminal have?
It has 12 poles.
What connection technology is used?
It uses PUSH IN with actuator technology.
What is the conductor orientation?
The product uses a 90° conductor outlet.
What conductor range is associated with this family?
The LSF-SMT 3.50 family is designed for conductor sizes from 0.2 to 1.5 mm².
Why is a 3.50 mm pitch useful?
It helps increase connection density on the PCB while keeping the wiring interface practical for industrial applications.
Where is this product commonly used?
It is commonly used in compact controllers, automation electronics, communication devices, and other PCB assemblies where a dense multi-pole terminal is needed.