SAGEMCOM 252721013AF – External AC/DC Power Adapter for Gateways, Routers, and Set‑Top Boxes

The SAGEMCOM 252721013AF is a compact, high‑reliability AC/DC power adapter designed for Sagemcom CPE devices—typically home gateways, F@ST series routers, and set‑top boxes. From my experience, this model is favored as an OEM replacement when you need a stable 12 V supply with low ripple and consistent performance under 24/7 duty. You might notice that it runs cool and stays electrically quiet, which helps reduce reboots and signal issues caused by noisy power rails.

Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance; full payment prior to delivery
• Express options: FedEx, UPS, DHL

Key Features

• Stable 12 VDC output – Sized for Sagemcom gateways and STBs, keeping devices powered without dropouts.
• Universal AC input (100–240 VAC) – Works in most regions; handy for cross‑border deployments and spares.
• Low ripple design – Typically reduces pixelation or reboot issues linked to unstable supplies.
• Barrel connector, center‑positive – Common 5.5 mm OD / 2.1 mm ID plug for quick swap with existing harnesses.
• Over‑current, over‑voltage, short‑circuit protection – Extra safety for field use and bench testing.
• Compact external brick – Frees heat from the device chassis; easier servicing and replacement.

Technical Specifications

Application Fields

This model is commonly used with Sagemcom F@ST routers, media gateways, and IPTV/OTT set‑top boxes. In many cases, integrators also keep it as a field spare for CPE swap programs, lab staging benches, and small network edge devices that accept 12 VDC input. It’s also a practical fit for smart‑meter data concentrators and lightweight IoT gateways requiring a stable 12 V rail.

Advantages & Value

• Reliability in the field – Stable output helps reduce no‑fault‑found returns and support tickets.
• Compatibility – Barrel connector and 12 V profile match typical Sagemcom CPE, easing spares management.
• Cost efficiency – Quick replacement avoids full device swaps; shorter truck rolls in service operations.
• Technical support – From my experience, clarifying polarity and load headroom early prevents mis‑matches and saves rework.

Installation & Maintenance

• Environment – Use in a ventilated area; avoid enclosed spaces without airflow. Keep within 0–40 °C.
• Wiring – Verify center‑positive polarity and 5.5 × 2.1 mm plug fit. Ensure mains lead is properly rated for region.
• Cabinet standards – For rack/cabinet installs, secure the brick with cable ties and leave clearance on all sides to dissipate heat.
• Safety – Disconnect AC supply before servicing. Do not exceed the 2 A DC load. Use surge protection in areas with unstable mains.
• Routine checks – Inspect connectors quarterly for looseness or oxidation. Lightly clean vents with dry air; avoid liquids.
• Verification – If troubleshooting, measure open‑circuit voltage and ripple under load; replace if drift is detected.

Quality & Certifications

• Conformity: CE, RoHS
• Safety compliance: UL/cUL for power supplies (region‑dependent labeling)
• Manufacturer’s standard quality controls for CPE power adapters
• Warranty: 365 days (as per our supply terms)

Supporting Components (Optional)

• Regional AC mains leads (EU/UK/US)
• DC plug adapters (5.5 × 2.5 mm sleeve for legacy devices)
• Cable management clips and tie mounts for cabinet routing

Note: Electrical ratings and dimensions above reflect typical configurations for Sagemcom 12 V adapters used with F@ST series devices. If you’re replacing a specific PSU, a quick photo of the label helps us verify plug size and current rating before shipping.