1. Увод
The HI-Link HLK-2M03 is a compact, high-efficiency AC-DC power supply module designed for various electronic applications. It converts a universal input voltage (90-245Vac) to a stable 3.3Vdc output with a maximum current of 600mA. This module features low power consumption, high reliability, and robust protection mechanisms, making it suitable for smart home devices, automation control, communication equipment, and instrumentation.

Слика 1: Предња страна view of the HLK-2M03 Power Supply Module, showing input and output pins.
2. Кључне карактеристике
- Ultra-compact and small form factor.
- Универзални улазни волtage range: 90 ~ 245Vac.
- Low power consumption with no-load loss less than 0.1W.
- Низак излазни талас и шум.
- Integrated output short circuit and overcurrent protection with automatic recovery.
- High efficiency and power density.
- Input and output isolation withstand voltagе: 3000Вац.
- 100% full load aging and testing for reliability.
- Long operational life, exceeding 100,000 hours of continuous working time.
- Environmentally sealed with waterproof and thermally conductive adhesive potting, meeting IP65 standard for moisture and vibration resistance.
- Operates without requiring external circuitry.
3. Техничке спецификације
| Параметар | Валуе |
|---|---|
| Улазни волtagе Распон | 90 ~ 245Вац |
| Оутпут Волtage | 3.3Вдц |
| Излазна струја | 600мА (макс.) |
| Излазна снага | 2W |
| Губитак без оптерећења | < 0.1В |
| Исолатион Волtage | 3000Vac (Input to Output) |
| Радна температура | -25°Ц до +60°Ц |
| Температура складиштења | -40°Ц до +80°Ц |
| Релативна влажност | 5-95% |
| Метод хлађења | Природно хлађење |
| Атмосферски притисак | 80-106 кПа |
| Висина | < 2000М |
| Vibration Coefficient | 10 ~ 500Hz, 2G10min./1cycle, 60min.each along X, Y, Z axes |
| Заштита | Output Short Circuit, Output Overcurrent (110-150% of max load) |
| Димензије (Д к Ш к В) | Approx. 30mm x 19mm x 16.5mm (Refer to Figure 2) |
| Цертификати | ЦЕ, УЛ |

Figure 2: HLK-2M03 Power Supply Module with approximate dimensions (30mm x 19mm x 16.5mm).
4. Подешавање и инсталација
The HLK-2M03 module is designed for PCB mounting and requires careful wiring. Ensure all power is disconnected before proceeding with installation.
4.1 Пин Цонфигуратион
Refer to the module markings for correct pin identification:
- АЦ (к2): Input terminals for AC power (90-245Vac). These pins are interchangeable for live and neutral connections.
- -Во: Negative output terminal (0V).
- +Во: Positive output terminal (+3.3Vdc).

Слика 3: Врх view of the HLK-2M03 module, indicating AC input and -Vo/+Vo output pins.
4.2 Кораци инсталације
- Искључивање напајања: Ensure the main power supply is completely disconnected before handling the module.
- Монтажа: Solder the module securely onto a printed circuit board (PCB) using the designated pin holes. Ensure proper alignment and mechanical stability.
- Улазно ожичење: Connect the AC input lines (Live and Neutral) to the two "AC" pins on the module. Observe local electrical codes and safety standards.
- Излазно ожичење: Connect the load requiring 3.3Vdc to the "+Vo" (positive) and "-Vo" (negative) output pins. Ensure correct polarity.
- Верификација: Double-check all connections for correctness and security to prevent short circuits or improper operation.
Упозорење: Incorrect wiring can lead to damage to the module, connected devices, or pose an electrical hazard. If you are unsure, consult a qualified electrician or electronics technician.
5. Операција
Once the HLK-2M03 module is correctly installed and wired, apply the specified AC input voltage (90-245Vac). The module will automatically convert this to a stable 3.3Vdc output. The module is designed for continuous operation within its specified environmental conditions and load limits.
- Ensure the connected load does not exceed the maximum output current of 600mA to prevent overcurrent protection activation or module damage.
- The module operates with natural cooling; ensure adequate airflow around the module if it is enclosed to prevent excessive heat buildup, especially under full load.
6. Одржавање
The HLK-2M03 power supply module is designed for long-term, maintenance-free operation. However, adhering to the following guidelines can help ensure its longevity:
- Услови животне средине: Operate the module within the specified temperature and humidity ranges. Avoid exposure to extreme conditions, direct sunlight, or corrosive environments.
- Чистоћа: Keep the module free from dust and debris. If cleaning is necessary, use a soft, dry brush or compressed air. Do not use liquid cleaners.
- Физички преглед: Periodically inspect the module and its connections for any signs of physical damage, loose wiring, or discoloration.
- Вентилација: Ensure that any enclosure housing the module provides sufficient ventilation for natural cooling.
No user-serviceable parts are inside the module. Do not attempt to open or repair the module, as this will void any warranty and may pose a safety risk.
КСНУМКС. Решавање проблема
If you encounter issues with your HLK-2M03 module, refer to the following common troubleshooting steps:
| Проблем | Могући узрок | Решење |
|---|---|---|
| Но оутпут волtage |
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| Оутпут волtage is unstable or low |
|
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| Module repeatedly shuts down or restarts |
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8. Безбедносне информације
Please read and understand all safety instructions before installing or operating the HLK-2M03 module. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Електрична опасност: This module operates with high AC voltages. Always disconnect power before making any connections or performing maintenance.
- Квалификовано особље: Installation and wiring should only be performed by qualified personnel familiar with electrical safety standards.
- Изолација: The module provides input-to-output isolation. Do not bypass this isolation.
- Животна средина: Do not expose the module to water, moisture, or flammable materials. Ensure it is installed in a well-ventilated area.
- Заштита од преоптерећења: Do not exceed the specified output current (600mA). Overloading can cause damage or fire.
- Правилно уземљење: Ensure the system incorporating this module is properly grounded according to local electrical codes.
9. Гаранција и подршка
9.1 Гаранција
The manufacturer provides a warranty for this product. Specific warranty terms and duration (e.g., "1" year as indicated in specifications) are typically provided at the point of purchase or by the seller. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by improper installation, misuse, unauthorized modifications, or operation outside of specified parameters.
9.2 Техничка подршка
For technical assistance or inquiries not covered in this manual, please contact your product supplier or the manufacturer, HI-Link, through their official support channels. Provide your product model number (HLK-2M03) and a detailed description of the issue when seeking support.