BY-400WX1-28V38 Switching Power Supply Boyu

$59.99

BOYU BY-400WX1-28V38 power supply delivers 2.8V-4.2V output with advanced LLC control, offering high efficiency and comprehensive protection.
Input Voltage: 100-240VAC, 4.7AMax, 50/60Hz
Output Voltage: 55-35V
Output Current: 3.8-2.8A
Protection function: input under voltage, overload protection, short circuit protection
Heat dissipation mode: Ventilation cooling

BY-400WX1-28V38 Switching Power Supply Boyu Description

The BOYU BY-400WX1-28V38 power supply is engineered for superior efficiency and reliability, converting 100-240VAC to a stable 2.8V-4.2V DC output. With an efficiency of ≥88%, this power supply is ideal for applications requiring high performance and minimal energy loss. It supports a maximum output current of 55A and offers comprehensive protection features, including overcurrent, short circuit, overvoltage, and over-temperature protection, ensuring safe operation under varying conditions.
Designed for versatility, the BY-400WX1-28V38 is compact and lightweight, with natural ventilation cooling for enhanced heat dissipation. Its ability to operate in extreme temperatures, from -40°C to +70°C, makes it a robust solution for industrial and commercial environments, providing consistent power delivery and long-term durability with an MTBF of over 50,000 hours.
Product Features:
High Efficiency: Achieves ≥88% efficiency at 230Vac under full load.
Wide Input Voltage Range: Operates within 100Vac to 240Vac.
Stable Output: Delivers 2.8V-4.2V DC with a rated current of up to 55A.
Comprehensive Protection: Includes overcurrent, short circuit, overvoltage, and over-temperature protection, ensuring safe and reliable operation.
Compact Design: Small form factor with dimensions of 180mm x 68mm x 26mm, and a weight of approximately 473g.
Cooling Method: Utilizes natural ventilation cooling for efficient heat dissipation.
Rugged Performance: Operates in extreme temperatures, from -40°C to +70°C, with a high MTBF of ≥50,000 hours at 25°C.

Category	Specification
Input Voltage Range	100Vac to 240Vac
Normal Operating Voltage	100Vac to 230Vac
Frequency Range	47Hz to 63Hz
Max Input Current	6.0A Max at full load
Inrush Current	80A @230V
Efficiency (full load)	≥88% @ 230Vac
Leakage Current	≤1.5mA @ 230Vac input
Normal Output Power	400W
Input Fuse	T6.3AH/250Vac
Power Factor	PF >0.95 @ 230Vac
Output Voltage Regulation	±2%
Output Min Current	0A
Output Rated Current	35A @ 2.8V-3.2V, 55A @ 3.8V-4.2V
Output Peak Current	38.5A @ 2.8V-3.2V, 60.5A @ 3.8V-4.2V
Output Ripple & Noise	250mVp-p @ 2.8V-3.2V, 350mVp-p @ 3.8V-4.2V
Output Transient Response	0.02A/uS, 25% to 50% and 50% to 75% load
Output Rise Time	≤50ms
Output Overshoot (Turn-On)	≤10%
Output Overshoot (Turn-Off)	≤10%
Hold-Up Time	≥10ms
Power On Delay Time	≤3S @ 25℃, ≤5S @ -30℃
Overcurrent Protection	38.5A-60.5A (Auto Recovery)
Short Circuit Protection	Latch off, requires AC power reset
Overvoltage Protection	4.5V Min (Auto Recovery)
Overtemperature Protection	Yes (Auto Recovery)
Isolation Resistance	DC500V 10 MΩ min (room temp)
Dielectric Strength (Input to Output)	3000Vac 50Hz, 1 minute, ≤10mA
Dielectric Strength (Input to FG)	1500Vac 50Hz, 1 minute, ≤10mA
Dielectric Strength (Output to FG)	500Vac, 1 minute, ≤10mA
Operating Temperature	-40℃ to +70℃
Storage Temperature	-40℃ to +85℃
Operating Humidity	10% to 90% RH (non-condensing)
Storage Humidity	5% to 95% RH (non-condensing)
Altitude (Operating)	-60m to 3000m
Altitude (Storage)	Up to 5000m
Cooling Method	Natural Ventilation Cooling
Dimensions	180mm x 68mm x 26mm
Weight	Approx. 473g
MTBF	≥50,000 hours

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We offer a fixed shipping fee of $78 per order, regardless of size or weight, making shipping costs predictable and manageable.

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Our typical delivery time is 3-7 days, depending on your location. In rare cases of delays due to weather, regulations, or holidays, we appreciate your understanding.

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