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WF4191 Series Wire-to-Board Connectors | 4.19 mm Pitch, a Reliable Solution for Industrial Vibration-Resistant Connections
Amid the trend toward industrial automation and intelligent upgrades, industrial control systems are placing increasingly stringent demands on the vibration resistance and reliability of connectors. WCON Electronics’ WF4191 series of wire-to-board connectors, featuring a 4.19 mm pitch, is available in both single-row and dual-row configurations and supports a variety of connection methods, including wire-to-board and board-to-board connections. The series is specifically designed to withstand continuous vibration and shock.
This series features an external locking mechanism that confirms the locked position with an audible click, effectively preventing loosening caused by vibration or impact. The terminals employ a dual-contact design, which significantly enhances contact reliability and ensures uninterrupted power and signal transmission even under continuous vibration. Combined with a contact isolation design, this greatly improves arc resistance and prevents the risk of leakage or short circuits in dusty or humid environments. As a result, the WF4191 series of wire-to-board connectors is widely applicable in industrial automation equipment, industrial servers, and storage devices—scenarios that require high retention force and vibration-resistant connections.
| Product Highlights | Performance Specifications |
| - Latch design for enhanced connection retention; | - Rated Current: 11.0A |
| - Horizontal and vertical connections for flexible assembly; | - Rated Voltage: 400V |
| - Dual-contact terminals for improved connection stability; | - Insulation Resistance: 1000 MΩ min |
| - Isolated contact design for enhanced arc resistance, damage prevention, and short-circuit protection. | - Withstand Voltage: 1500 V AC/min |
| - Operating Temperature: -40° C to +105° C | |
| - Applicable Wire Gauge: 16–26 AWG |
| Complies with Standards | Applications |
| - EIA-364 (Mechanical and Electrical Reliability Test Standard for Connectors) | - Industrial Control and Automation Equipment |
| - Servers | |
| - Consumer Electronics |
Data Sheet
The following are the detailed performance specifications of the WF4191 series industrial connectors for your reference in selection.
（WF4191 series industrial connector selection guide with single row options）
（WF4191 series industrial connector selection guide with dual row options）