Weidmüller 1001300000 S2L-SMT 3.50/04/90LF Male Header Overview
The Weidmüller 1001300000 S2L-SMT 3.50/04/90LF male header is designed for pluggable PCB connection systems that need compact dimensions, dependable board integration, and efficient automated assembly compatibility. In today’s electronics manufacturing environment, that combination matters. Engineers are no longer choosing connectors only by pole count and pitch. They also look closely at soldering process compatibility, board layout flexibility, and long-term handling performance.
This part belongs to a family of Weidmüller male headers built for 3.50 mm pitch applications. The product designation points to a 4-pole format with a 90-degree orientation, which makes it particularly useful where lateral mating is preferred. In practical design terms, a right-angle header can help reduce overall equipment height and simplify cable exit direction inside compact housings.
Technical Identity of the Product
The Weidmüller 1001300000 S2L-SMT 3.50/04/90LF is recognized as a PCB plug-in connector header intended for board mounting. It is associated with a 3.2 mm solder pin length and a black housing, and it is packaged in box format. For design teams working on repeatable assembly processes, those details are not minor. They affect handling, solder joint formation, board stacking strategy, and connector accessibility.
Because it is part of an SMT-oriented header concept, the product is relevant in projects where manufacturing efficiency and clean PCB integration are both priorities. Many board designers prefer such headers in compact industrial electronics, building automation devices, interface controllers, and modular control boards.
Why the 90-Degree Header Format Matters
A Weidmüller S2L-SMT 3.50/04/90LF male header with right-angle orientation supports side-entry mating, which can be extremely valuable when vertical clearance is restricted. In slim enclosures or layered electronics, top-entry connector arrangements may waste height or complicate cable routing. A 90-degree layout helps direct the plug interface toward the side, supporting better space management.
That benefit becomes even more noticeable in DIN-rail electronics, compact machine control modules, HVAC boards, and interface cards built into narrow housings. In these environments, every millimeter of internal space influences thermal flow, wiring access, and serviceability.
Use Cases in Modern Electronics
The Weidmüller 1001300000 male header is well suited to signal and control wiring on pluggable board systems. It is often a strong option for compact controller boards, communication interfaces, monitoring electronics, sensor hubs, and distributed I/O equipment. Since the header is the board-mounted side of the connection system, it plays a central role in maintaining mechanical stability and mating consistency.
Weidmüller 1001300000 Designers often prioritize this style of connector when a product must be installed quickly, serviced efficiently, and assembled with good process repeatability. A pluggable header-and-plug architecture helps support those goals, particularly in products that may need field replacement or production-line testing.
Weidmüller 1001300000 Design Benefits Beyond Basic Connection
The best connector choices improve more than electrical continuity. They also influence how an entire product feels to assemble, wire, inspect, and maintain. The Weidmüller S2L-SMT 3.50/04/90LF 3.2SN BK BX supports compact board design while keeping the interface accessible and organized. That matters for both manufacturers and maintenance teams.
From a layout perspective, 3.50 mm pitch remains a highly practical size for electronics that need structured multi-pole connectivity without moving into bulky terminal spacing. It offers a disciplined balance between density and usability, which is one reason this pitch remains common in industrial electronics and control architecture.
For Weidmüller connection technology, related headers and mating plug systems can help standardize board interfaces across product families.
Weidmüller 1001300000 FAQ
What kind of component is Weidmüller 1001300000?
It is a male header for pluggable PCB connections. It is intended to be mounted on the PCB and used together with a compatible mating plug.
What does 90LF indicate in practice?
In practical terms, this product is associated with a 90-degree orientation and a board-mounted header format designed for compact pluggable PCB connection systems.
Why is a 4-pole header useful?
A 4-pole header is ideal for grouped control or signal connections where engineers want an orderly, compact interface without excessive board footprint.
Is 3.50 mm pitch considered compact?
Yes. It is widely regarded as a compact and versatile pitch for industrial electronics, especially where signal density and handling convenience both matter.
Why do engineers select right-angle PCB headers?
Right-angle headers are often chosen to save height, direct cable access sideways, and create cleaner enclosure layouts in space-sensitive products.
Where might this header be used?
Typical applications include automation electronics, interface boards, I/O systems, compact controller modules, communication devices, and smart building electronics.

