Hi-Link HLK-PM12 12V 3W AC-DC Power Supply Module

The Hi-Link HLK-PM12 is a compact enclosed 12V 3W AC-DC power supply module designed for PCB-mounted electronics, automation, IoT and embedded applications. It accepts a wide 85–264VAC input and provides an isolated 12V DC output in a compact encapsulated package.

Description

The Hi-Link HLK-PM12 12V 3W AC-DC Power Supply Module is a compact enclosed switching power module designed to convert mains AC voltage into a regulated 12V DC supply for low-power electronic circuits.

Unlike a conventional open-frame power supply, the HLK-PM12 uses a compact, fully enclosed plastic housing, making it convenient for integration directly onto a PCB in embedded electronics, smart-home equipment, industrial controls and instrumentation.

Hi-Link specifies a rated input of 100–240VAC with a wider operating input range of 85–264VAC. The module also supports 70–350VDC input, according to the manufacturer's specifications.

The output is rated at 12V DC and 3W. From the 3W/12V rating, the nominal full-power output current is approximately 250mA (3W ÷ 12V = 0.25A). This makes the module suitable for low-power 12V electronics rather than high-current loads such as motors, large LED strips or other equipment requiring several amps.

The HLK-PM12 provides 3000VAC input-to-output isolation, while Hi-Link specifies no-load power consumption of ≤0.1W. The manufacturer also lists over-current and short-circuit protection with self-recovery.

AC to DC Power Conversion

The HLK-PM12 provides a convenient way to obtain 12V DC from mains AC inside a suitable electronic design.

Typical power flow:

85–264VAC Input → HLK-PM12 → 12V DC Output

This allows designers to integrate an AC-DC supply directly into a PCB-based device rather than relying on a separate external 12V adapter.

Because the input side can carry dangerous mains voltage, correct PCB clearance, insulation, enclosure, fusing and electrical-safety practices are essential.

Key Features

• Hi-Link HLK-PM12 model
• AC-DC switching power supply module
• 12V DC output
• 3W rated output power
• Approximately 250mA output at rated 3W
• Rated input: 100–240VAC
• Wide AC input range: 85–264VAC
• DC input range: 70–350VDC
• 3000VAC input-to-output isolation
• Fully enclosed plastic housing
• PCB-mount design
• Low ripple and noise
• No-load consumption ≤0.1W
• Over-current protection
• Short-circuit protection with self-recovery
• Natural cooling
• Compact design
• Suitable for embedded power applications

These electrical and protection characteristics are specified by Hi-Link for the HLK-PM12 family/model.

Technical Specifications

The manufacturer is the source for these specifications.

Note: I deliberately label the 250mA figure as calculated from the official 12V/3W rating, rather than presenting an inconsistent reseller current specification as manufacturer data.

Protection & Safety Features

The HLK-PM12 incorporates several features intended for embedded power-supply applications, including input/output isolation, over-current protection, short-circuit protection and a flame-retardant enclosed housing.

Hi-Link specifies 3000VAC isolation, UL94V-0-level housing material, and recommends an external 1A/250VAC fuse or 10Ω wire-wound resistance in its input specifications.

These features do not eliminate the need for proper mains-voltage design practices.

Applications

The HLK-PM12 can be suitable for low-power applications such as:

• Embedded electronic systems
• Smart-home electronics
• IoT devices
• Automation systems
• Industrial control circuits
• Instrumentation
• Communication equipment
• PCB-based controllers
• Low-power 12V control circuits
• Monitoring systems
• Electronic prototypes
• Custom mains-powered electronics

Hi-Link itself lists industrial control, instrumentation, communications and related fields among the module's application areas.

Important Load Consideration

This is a 3W power supply, not a high-current 12V SMPS.

At 12V:

3W ÷ 12V = approximately 0.25A

Therefore, don't treat the HLK-PM12 as a substitute for a 12V 1A, 12V 2A or higher-current power supply.

Before connecting a load, verify that its voltage and current requirements remain within the module's rated capability.

Package Includes

1 × Hi-Link HLK-PM12 12V 3W AC-DC Power Supply Module

Buy Hi-Link HLK-PM12 in Pakistan

Looking for the Hi-Link HLK-PM12 in Pakistan? This compact 12V 3W AC-DC module provides an enclosed PCB-mount power solution for compatible embedded electronics, automation, IoT and low-power control applications.

Check Chip.pk for current price and stock availability.

FAQs

1. What is the Hi-Link HLK-PM12?

The Hi-Link HLK-PM12 is a compact enclosed AC-DC switching power supply module designed to convert mains AC into a regulated 12V DC output for low-power electronic circuits.

2. What is the output voltage of HLK-PM12?

The HLK-PM12 provides a rated 12V DC output.

3. What is the output power of HLK-PM12?

The module is rated for 3W output power.

4. What is the output current of HLK-PM12?

Based on its 12V and 3W rating:

3W ÷ 12V = approximately 0.25A (250mA).

The connected load should remain within the module's rated output capability.

5. What AC input voltage does HLK-PM12 support?

Hi-Link specifies a rated input of 100–240VAC and an operating AC input range of 85–264VAC.

6. Can HLK-PM12 work with 220V AC in Pakistan?

Yes. Pakistan's nominal mains voltage falls within the module's specified AC input range. However, this module works directly with potentially lethal mains voltage, so appropriate insulation, fusing, PCB clearances and enclosure are required.

7. Is HLK-PM12 an AC-to-DC converter?

Yes. The HLK-PM12 AC-DC power supply module can convert compatible mains AC input into a 12V DC supply for low-power electronics.

8. Is the HLK-PM12 isolated?

Hi-Link specifies 3000VAC input-to-output isolation for the module.

9. Does HLK-PM12 have short-circuit protection?

Yes. Hi-Link specifies short-circuit protection with automatic recovery, along with over-current protection.

10. Can HLK-PM12 power an Arduino?

Potentially, but not by connecting 12V blindly to a board or pin. The target board's permitted input voltage, regulator arrangement and current requirements must be checked first. Where a regulated 5V or 3.3V rail is required, an appropriate downstream regulator/converter is needed.

11. Can HLK-PM12 power an ESP32 directly?

A typical ESP32 board operates from lower-voltage rails and should not receive the HLK-PM12's 12V output directly unless that particular board explicitly provides a suitable 12V input stage. Usually an appropriate DC-DC conversion/regulation stage is required.

12. Is HLK-PM12 suitable for IoT projects?

Yes, it can serve as the AC-DC power stage in compatible low-power IoT and embedded designs, provided the 12V output is converted further where the electronics require lower voltages.

13. Can HLK-PM12 replace a 12V 2A power supply?

No. 12V 3W is approximately 250mA, whereas a 12V 2A supply can provide up to 24W. They are intended for very different load requirements.

14. Is the HLK-PM12 PCB mountable?

Yes. Its compact encapsulated form is designed for integration into suitable PCB-based electronic equipment.

15. What is the no-load power consumption?

Hi-Link specifies ≤0.1W no-load power consumption.

16. What is the price of Hi-Link HLK-PM12 in Pakistan?

The HLK-PM12 price in Pakistan can vary according to stock and market conditions. Check the current Chip.pk product price for the latest information.

17. Where can I buy HLK-PM12 in Pakistan?

You can buy the Hi-Link HLK-PM12 12V 3W AC-DC Power Supply Module from Chip.pk, subject to current stock availability.