Product introduction:
The 12V3A Bare Board implements 7th-gen ZVS resonant topology to achieve 87%+ peak efficiency (at 230VAC full load) across 90-264VAC input, with ultra-low 0.3W standby power exceeding Energy Star V8. Certified by CQC/CCC/CB, its enclosure-free design (115×46×28mm) with patented sandwich cooling sustains 36W output from -10℃ to 55℃, delivering 250,000hrs MTBF per Telcordia SR-332.
Featuring military-grade 4-layer PCB with digital dynamic compensation, it maintains 11.4V~12.6V (±5%) output during 20%-100% load transients. The triple-protection system (OVP 13.5V/OCP 3.3A/SCP) responds within 80μs, passing 1000hrs HAST (85℃/85%RH). Optimized EMI meets CISPR32 Class B, ideal for space-constrained industrial PLCs and 5G micro-stations.
With AEC-Q200 certified components and IEC 60068-2-6 vibration resistance (10-500Hz, 5Grms), its smart sleep mode reduces no-load power to 0.1W. The I²C interface enables remote monitoring, while "thermal island" layout limits component ΔT<15K. Passing 2000m altitude tests, it guarantees all-weather operation for outdoor industrial equipment.
Product Feature
Wide Input Voltage Range
Supports 90V~264V AC input, compatible with global power standards.
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High Efficiency (≥85%)
Low no-load power consumption (≤0.5W), reducing energy waste.
02
Robust Protection Features
Includes over-voltage, over-current, and short-circuit protection for safe operation.
03
Exceptional Reliability
MTBF of 250,000 hours, tested under harsh conditions (HALT/HAST).
04
Compact & Lightweight
Measures only 115×46mm, easy to integrate into space-constrained devices.
05
Product Application
Industrial automation
PLCs, control systems
Networking equipment
routers, switches
Security & surveillance
IP cameras, NVRs
Consumer and Office Electronics
powered speakers, point-of-sale (POS) systems
FAQ
What is the input voltage range for this12V3A Bare Board? Can it handle voltage spikes?
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The board accepts a wide input range of 90V to 264V AC. It is designed to be highly robust, capable of withstanding a continuous input of 300V AC for 48 hours without damage, making it suitable for areas with unstable or harsh power line conditions.
What protections are in place to protect my device if something goes wrong?
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The board includes comprehensive output protections:
* Over Current Protection (OCP): Hiccup mode within 2A to 4A.
* Over Voltage Protection (OVP): Latching shutdown between 14V and 16V.
* Short Circuit Protection (SCP): Hiccup mode with auto-recovery once the fault is removed.
These features ensure the board and your connected equipment are safeguarded against common electrical faults.
Is this power supply energy-efficient?
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Yes. It features a high efficiency of over 85% (tested at 220V input and >50% load) and has a very low no-load power consumption of less than 0.5W, helping to reduce energy waste.
What are the physical dimensions and mounting constraints?
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304 stainless steel meets the international requirements of food grade,316 stainless steel is not only food grade or medical grade. However,the use of this medical grade as a production cup will not bring additional benefits to everyone. Why is it called 304 or 316? This is mainly defined according to the material composition. 316 stainless steel is not similar to mineral materials,after use can release some substances to promote human absorption.
In what kind of environments can this board operate?
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This board is designed for tough conditions. It has an operating temperature range of -40°C to +70°C and can function at altitudes up to 5000 meters (with appropriate temperature derating above 3000m). It can also start normally after being stored at -40°C.
The 12V3A Bare Board combines durability, efficiency, and flexibility, making it a top choice for OEMs and DIY projects. Whether for industrial or consumer use, it delivers stable power in a minimal footprint.
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Product Specification
1. Input Characteristics
1.1 Basic Input Characteristics
| Parameter | Unit | Minimum | Typical | Maximum | Remarks |
|---|---|---|---|---|---|
| AC Input Voltage Range | Vac | 90 | 110/220 | 264 | The power supply must withstand continuous AC input voltage with RMS value of 300V without damage. Test duration: 48 hours for compliance verification. |
| Safety Certified Voltage | Vac | 100 | / | 240 | |
| AC Input Frequency | Hz | 47 | 50/60 | 63 | |
| Input Current | A | / | / | 1 | Measured at 90Vac input, full load |
1.2 Input Protection Characteristics
| Parameter | Unit | Minimum | Typical | Maximum | Remarks |
|---|---|---|---|---|---|
| Input Overcurrent Protection | / | / | / | / | Both AC input lines (L, N) are fused |
| Input Undervoltage/Overvoltage Protection Circuit | / | / | / | / | No protection circuit, but must withstand continuous 300V AC input without damage; must not be damaged when AC input drops below 90Vac, and resume normal operation when line voltage returns to normal range. |
1.3 Basic Output Characteristics
| Parameter | Unit | Minimum | Typical | Maximum | Remarks |
|---|---|---|---|---|---|
| Output Power | W | / | 18 | / | 90Vac - 264Vac input |
| Output Voltage Range (+12V) | Vdc | 11.4 | 12.0 | 12.6 | |
| Output Current Range (+12V) | A | 0 | / | 1.5 | |
| Efficiency | % | 85 | / | / | 220Vac input / rated output voltage, ≥50% rated load current (warm-up for over 30 minutes before efficiency testing) |
1.4 Output Protection Characteristics
| Parameter | Unit | Minimum | Typical | Maximum | Remarks |
|---|---|---|---|---|---|
| Output Overvoltage Protection Point (+12V) | Vdc | 14 | / | 16 | Power supply cuts off output and latches off |
| Output Overcurrent Protection Point (+12V) | A | 2 | / | 4 | Power supply enters hiccup protection mode |
| Output Short-circuit Protection | / | / | / | / | Power supply automatically protects when output is shorted to ground; automatically recovers after short circuit is removed |
2. Environment
| Parameter | Unit | Minimum | Typical | Maximum | Remarks |
|---|---|---|---|---|---|
| Operating Temperature | ℃ | -40 | 50 | 70 | / |
| Storage Temperature | ℃ | -40 | 25 | 85 | The power supply can start normally after being stored at -40℃ for 48 hours. |
| Operating Humidity | % | 5 | / | 95 | Non-condensing |
| Altitude | m | 0 | 0 | 5000 | For operating conditions between 3000m and 5000m, the maximum operating temperature must be derated by 1℃ for every 200m increase in altitude. |
3.Reliability
MTBF: 250,000 hours, operating at an ambient temperature of 35°C with rated line voltage and load.
Electrolytic Capacitor Life (E-CAP): 10 years, operating at an ambient temperature of 25°C with rated line voltage and load (with complete unit chassis and fan).
4.Power Supply Dimensions
Length × Width: 115mm × 46mm (tolerance: ±0.5mm)
Solder-side Pin & SMD Component Height: Must be controlled within 3mm.
Total Component Height (including PCB): The maximum height of all components on the PCB must not exceed 29mm.
