Weidmüller 1003740000 SL-SMT 3.50/24/135F 3.2SN BK BX PCB Header
The Weidmüller 1003740000 SL-SMT 3.50/24/135F 3.2SN BK BX is a 24-pole pluggable PCB male header designed for applications where connection density, layout discipline, and reliable board mounting all need to work together. In modern industrial electronics, connectors like this do far more than simply carry signals. They influence assembly speed, service clarity, enclosure routing, and even how scalable a product family becomes over time.
Why this 24-pole version stands out
Among compact pluggable PCB headers, a 24-pole version offers meaningful capacity. It allows a designer to combine a large number of related circuits into one consistent connection area, which often improves wiring structure and product readability. The Weidmüller 1003740000 SL-SMT 3.50/24/135F 3.2SN BK BX PCB header uses the familiar 3.50 mm pitch, so it keeps board usage efficient while still supporting a substantial interconnection count.
That combination is especially valuable in industrial controls, machine electronics, intelligent building systems, and complex interface boards where grouped terminals are easier to document and maintain than scattered smaller connectors.
Technical characteristics
This product is a male header with flange and THT/THR solder connection. It features a 135° outgoing elbow, 24 poles, a 3.2 mm tinned solder pin, black insulation, and box packaging. The listed reference values of IEC 320 V / 15 A and UL 300 V / 10 A position it within a widely relevant class of pluggable PCB connectors for control and signal-oriented functions.
Its value is not only in the rating figures, though. The connector also reflects strong mechanical logic. Through-hole based solder attachment remains highly respected in industrial designs because it supports reliable retention and practical durability during handling, production, and service operations.
How the 135° outlet helps in real hardware
The 135° orientation directly shapes how wires or mating connector paths behave inside a device. In many enclosures, this angle can reduce cable interference with tall components, guide harnesses along the intended route, and create a cleaner internal arrangement. These are not cosmetic benefits. Better routing can support easier assembly, clearer service work, and lower risk of mechanical strain near the connection point.
When combined with a flange-supported connector body, the overall result is a more deliberate and secure board connection solution.
Why exact pole count matters in PCB connector selection
Engineers do not usually choose a 24-pole connector by accident. It is often tied to a defined set of signals, control paths, commons, or expansion lines that must remain together. If the selected connector is too small, the design may need an extra header elsewhere. If it is too large, the footprint may become inefficient. That is why precise products such as the Weidmüller 1003740000 SL-SMT 3.50/24/135F 3.2SN BK BX PCB header remain important in search behavior and design decisions alike.
Using one 24-pole connector can also improve panel documentation and field service logic. Technicians generally benefit from having one clearly identified connection block rather than multiple smaller interfaces with split functions.
Applications and design relevance
This connector is well suited to compact automation hardware, machine subassemblies, signal marshaling boards, power monitoring devices, gateway electronics, and custom control products. It offers a practical fit where designers want a high pole count inside a space-efficient connector family, backed by the familiarity of Weidmüller’s OMNIMATE board connection approach.
Weidmüller 1003740000 For more information about Weidmüller, it is worth examining the broader range of compatible board connectors if you are building a modular or expandable electronics platform.
Weidmüller 1003740000 FAQ
What type of connector is the Weidmüller 1003740000?
It is a pluggable male PCB header with 24 poles, 3.50 mm pitch, flange-supported construction, and THT/THR solder mounting.
Why is a 24-pole header useful in industrial electronics?
Because it allows a large number of related circuits to be grouped in one compact area. That helps with organization, serviceability, and consistent board design.
Is the Weidmüller 1003740000 intended only for signal circuits?
It is mainly positioned for compact control and signal-related PCB connection tasks within its stated electrical framework. Final suitability always depends on the real application design.
Does the black housing provide a technical benefit?
Beyond appearance, standardized housing color can support visual consistency across industrial products and simplify product-family presentation and identification.
Why do designers prefer family-based connectors like SL-SMT 3.50?
Because family-based selection makes scaling easier. Different pole counts can often be integrated with similar design logic, reducing engineering effort across multiple related products.