Product details
✅ Key Features
• Model: 520257-2 – Modular unshielded 4-position, 4-contact jack
• Connector Type: RJ9 / RJ10 / RJ22 – Compatible with telephone and headset jacks
• Mount Orientation: Vertical – Ideal for upright PCB positioning
• Shielding: Unshielded – Simplified design for general signal use
• Contact Plating: Gold Flash – Reliable signal transmission and longevity
• Housing Material: High-quality thermoplastic – Ensures structural integrity
• Mounting Style: Through-hole – Secure attachment to circuit boards
• Category: Cat3 – Supports standard voice-grade telecom systems
• Polarity: Standard 4P4C – Common layout in voice and data jacks
• Applications: Telecom, keypads, legacy modems, office phones
• Operating Temp: -40°C to +85°C – Suitable for varied environments
• Compliance: RoHS Compliant – Environmentally responsible
• Retention Mechanism: Latching tab – Secure connection fit
• Color: Black – Professional aesthetic
• Manufacturer: TE Connectivity – Industry-trusted brand
📦 Description
The TE Connectivity 520257-2 is a compact and durable 4P4C modular jack, compatible with RJ9, RJ10, and RJ22 interfaces. It’s designed for Cat3 applications commonly found in telecom, office phones, and voice communication systems. The vertical through-hole mount offers easy integration into upright circuit board designs, while the gold-flashed contacts ensure reliable signal transmission across its lifetime.
Ideal for both commercial and industrial telecom installations, this modular connector supports applications where compact RJ jacks are required without shielding. The durable thermoplastic housing enhances resistance to environmental stress, making it a dependable choice in moderate usage conditions.
Unshielded for simplicity and efficiency, this model suits devices that don’t require EMI protection, such as office phones, headsets, and PBX systems. Its vertical orientation makes it a space-saving component on high-density boards.
Whether upgrading equipment or designing new systems, the TE 520257-2 ensures compatibility, durability, and trusted performance in everyday telecom applications.
🟦 Why All 4 HDD
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🟦 Trusted Quality
Our products come factory-sealed and ready for high-performance deployment, meeting top-tier residential and commercial needs.
🟦 Customer Care
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