Yealink 5V 1.2A Power Adapter
The Yealink 5V 1.2A Power Adapter is an AC/DC switching power supply built as a replacement or backup for Yealink IP desk phones and conferencing units. It delivers a stable 5V DC output at 1.2A, converting standard 100-240V AC mains input, which makes it usable across different countries without needing a separate voltage converter. The adapter uses a 5.5mm x 2.1mm centre-positive barrel connector, the standard fit for most Yealink T2X, T4X, and T5X series phones that aren’t running on PoE. Built-in safeguards against incorrect voltage, short circuits, and internal overheating keep the adapter — and the connected phone — protected during everyday use.
Key Features
- 5V DC / 1.2A output, matched to Yealink desk phone power requirements
- Universal 100-240V AC input, usable across different regions without a converter
- 5.5mm x 2.1mm centre-positive barrel connector, the standard Yealink phone fit
- Built-in protection against incorrect voltage, short circuits, and overheating
- Wide phone compatibility, covering multiple T2X, T4X, and T5X series models
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | PS5V1200US / YLPS051200C-US |
| Output | 5V DC, 1.2A |
| Input | 100-240V AC ~ 50/60Hz, 0.2A (250mA) |
| Connector | 5.5mm x 2.1mm, centre-positive barrel |
| Adapter Type | AC/DC switching power supply |
| Operating Temperature | -10°C to 50°C (14°F to 122°F) |
| Operating Humidity | 10–95% |
| Compatible Devices | Yealink T19, T20, T21, T22, T23, T26, T27, T28, T29, T40, T41, T42, T46, T48, T52, T53, T53W, W52, W80, W90 series (non-PoE models) |
Best Suited For
- Offices replacing a lost or faulty power adapter for an existing Yealink desk phone
- Businesses setting up non-PoE network environments, where phones need a direct power source
- IT departments keeping spare adapters on hand for quick swaps across compatible Yealink phone models
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