Weidmüller BLF 5.08HC/02/90LR SN BK BX Female PCB Connector Guide

The Weidmüller BLF 5.08HC/02/90LR SN BK BX is a compact 2-pole female PCB connector created for applications that need the benefits of pluggable wiring in a smaller connection format. Although it carries only two poles, it still delivers the same industrial logic that makes the BLF 5.08HC family attractive: predictable installation, service-friendly replacement, and dependable board-level connectivity. In industrial electronics, smaller connectors like this are often chosen for focused signal or power interfaces where space efficiency matters.

What Makes This 2-Pole Connector Relevant

A two-pole pluggable PCB connector is commonly selected for single-channel power feeds, compact control functions, or dedicated connection points inside a larger board architecture. The Weidmüller BLF 5.08HC/02/90LR SN BK BX keeps the familiar 5.08 mm pitch and PUSH IN with actuator design while using a 90° outlet and a more compact footprint. This makes it suitable for engineers who want standardized connector behavior across product families without over-dimensioning a small interface.

Technical Specifications

According to the official datasheet, the Weidmüller BLF 5.08HC/02/90LR SN BK BX is rated at 400 V, 24 A, and 0.2 to 2.5 mm² under IEC product data. Under UL data, it is rated 300 V, 18.5 A, and AWG 26 to AWG 12. The connector has a maximum clamping range of 3.31 mm², width of 19.98 mm, depth of 29.6 mm, height of 20.6 mm, and a stripping length of 10 mm. It offers IP20 touch protection when plugged and IP10 when unplugged and supports coding for connection differentiation.

Why the BLF 5.08HC Family Is Popular

The BLF 5.08HC range is widely relevant because it combines familiar 5.08 mm spacing with modern PUSH IN wiring convenience. The Weidmüller BLF 5.08HC/02/90LR SN BK BX shows how that concept can scale down to a very compact pole count without losing the value of pluggable maintenance. In practical terms, it can help reduce wiring effort in assemblies that do not need a larger multi-pole connector but still benefit from fast assembly and easy replacement.

Material and Performance Considerations

This Weidmüller female PCB connector uses PBT as the insulating material, with black housing and orange operational elements. The contact system uses a copper alloy with a tinned surface, and the flammability class is UL 94 V-0. The operating temperature range is listed from -50 °C to 100 °C, while installation is specified from -30 °C to 100 °C. Those details make it suitable for many industrial electronics environments where temperature tolerance, material stability, and compliance are part of the selection process.

Where the Weidmüller BLF 5.08HC/02/90LR SN BK BX Fits Best

Typical use cases include compact controller boards, power entry interfaces, sensor or actuator interfaces, small automation modules, and serviceable board-level connections in industrial devices. Search demand around terms such as Weidmüller BLF 5.08HC/02/90LR SN BK BX female PCB connector, 2 pole pluggable PCB connector, and Weidmüller 5.08 mm terminal block plug usually reflects these practical engineering needs.

For more information about Weidmüller, related connector families and compatible male headers can help shape a more complete connection strategy.

FAQ

What is the Weidmüller BLF 5.08HC/02/90LR SN BK BX used for?

It is used as a compact pluggable field wiring interface on a PCB, typically for low pole-count industrial or electronic connections that still require easy maintenance access.

Is a 2-pole connector enough for industrial applications?

Yes. Many industrial applications only require a compact two-position interface, especially for dedicated power, signaling, or isolated control connections.

What wiring technology does it use?

It uses PUSH IN with actuator technology, which helps speed up conductor connection while keeping release and handling controlled.

What are the main advantages of a pluggable connector in this size?

The main benefits are faster service access, easier device replacement, and better modularity compared with permanently wired alternatives.

Does it support compliance-focused applications?

Yes. The datasheet indicates RoHS compliance without exemption, no SVHC above 0.1 wt%, and a UL 94 V-0 flammability rating.