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Electronics accessories, Power Supply
Hi-Link HLK-PM03 220VAC to 3.3VDC 3W Step-Down Power Supply Module
Availability:
Out of stock
LKELEC00343
Rs 795.00
Out of stock
Hi-Link HLK-PM03 220VAC to 3.3VDC 3W Step-Down Power Supply Module
Specifications
| Parameter | Specification |
|---|---|
| Input Voltage Range | 90V AC – 264V AC (wide range) |
| Input Frequency | 47Hz – 63Hz |
| Output Voltage | 3.3V DC ± 0.1V |
| Rated Output Current | 900mA (max) |
| Rated Output Power | 3 Watts |
| Efficiency | ≥70% (typical at full load) |
| Output Ripple & Noise | ≤50mV (typical) |
| No Load Power Consumption | ≤0.1W |
| Output Hold Time | ≥20ms (at full load, 220VAC input) |
Protection Features
Overload Protection: Built-in (self-recovering)
Short Circuit Protection: Yes (self-recovering)
Over-temperature Protection: Yes (thermal shutdown)
Input Fuse Recommended: External (typically 1A fast blow)
Mechanical Specifications
| Parameter | Value |
|---|---|
| Module Dimensions | 34.5mm × 20mm × 15mm (L × W × H) |
| Weight | ~20g |
| Mounting Method | PCB Mount (through-hole pins) |
| Case Material | Flame-retardant black epoxy resin |
| Case Flammability | UL94-V0 rated |
Environmental Ratings
| Parameter | Value |
|---|---|
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% RH (non-condensing) |
| Altitude | Up to 2000m |
Safety & Compliance
Isolation Voltage: ≥3000VAC (Input to Output)
Safety Standards: IEC/EN60950, UL60950
EMI/EMC Compliance: EN55022 Class B
Certifications: CE, RoHS, FCC
MTBF: >100,000 hours (MIL-HDBK-217F, 25°C)
Pin Configuration
| Pin | Function |
|---|---|
| AC IN (L) | Live AC Input (90-264V AC) |
| AC IN (N) | Neutral AC Input |
| +V OUT | DC Output +3.3V |
| -V OUT | DC Ground (0V) |
Applications
IoT Devices and WiFi Modules (ESP8266, ESP32)
Embedded Microcontroller Systems
Home Automation & Smart Switches
Industrial Monitoring Equipment
Power Supply for Sensors & Communication Modules
Compact AC-to-DC Adapter Replacement
Advantages
Ultra-compact and space-saving
High efficiency with low heat generation
Easy integration with PCBs
Fully isolated and safe for direct AC line use
No need for bulky transformers or rectifier circuits
SKU: LKELEC00343
Categories: Electronics accessories, Power Supply
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