Zhejiang, China
Business Type:
Number of Employees:
Year of Establishment:
Management System Certification:
ISO 9001, ISO 9000
OEM/ODM Service
Sample Available

Power Supply, DC DC Converter, 12V 20A DC Converter manufacturer / supplier in China, offering Waterproof DC DC 48V to 12V 20A Buck Power Converter, St-100 Home Use 100W 110V-220V and 220V-110V Step up&Down Transformer, Smun AC-DC Single Output 15W 5V 3A Switching Power Supply and so on.

Gold Member Since 2009
Audited Supplier

Waterproof DC DC 48V to 12V 20A Buck Power Converter

Get Latest Price
Purchase Qty. / Reference FOB Price
1-49 Pieces US $12
50-99 Pieces US $10
100-999 Pieces US $9.5
1,000+ Pieces US $8.8
Port: Ningbo, China
Production Capacity: 50, 000 Per Month
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram
Usage: Light, Construction, Digital Products, Vehicle
Output Type: Single
Driving Method: LED Regulator Voltage
Certification: CE, RoHS
Power Supply Mode: Constant Voltage Source
In-Out: Step-down Type

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Basic Info

Model NO.: SDJ-240(48)-12
Power Supply Voltage: 48VDC
Brand: Smun
Output Rated Power: 240W
Input Voltage Range: 35-63VDC
Output Voltage: 12V
Output Current: 20A
Efficiency: up to 95%
Waterproof: IP68
Working Temperature: -40°c to +80°c
Warranty: 1 Year
Weight: 280g
Have in Stock: Yes
Trademark: smun
Transport Package: Carton Packed
Specification: 74*74*32mm
Origin: China, Zhejiang
HS Code: 8504401400

Product Description

1. 100% full power & stable current output
2. 100% Imported components
3. Wide input voltage from 35-63Vdc
4. Industry grade DC48V to DC12V step-down converter, high efficiency up to 94%
5. 100% waterproof & anti-shock protection, Ultra compact size, light weight
6. According: CE/RoHS, IP68 design
7. Die-cast aluminum shell, epoxy potting, Cooling by free air convection
8. Protections: Over-current, Over-voltage, Over-temperature, Over-load and Short-circiut. Auto-recovery when device is back to normal operating
9. Non-Isolated Module, 
10. 1 year warranty, lifetime up to 100,000 hours.
Input rated voltage48V DC
Input voltage range35-63V DC
Efficiency96% (half load), 94% (full load)
Output voltage12V DC
Output current20 Amps
Output rated power240 Watts
Output peak power300 Watts
Voltage regulation< 1%
Load regulation< 2%
Ripple (Full load test)< 50mV
No-load current25~27mA
Working temperature-40°c ~ +80°c
Waterproof ratingIP68
Over-voltage protectionYES
Over-current protectionYES
Over-temperature protectionYES
Short-circuit protectionYES
Machine size74*74*32mm
Package size98*82*34mm
N. Weight290g
G. Weight300g
Cooling wayFree air convection
OtherCarton packaging

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