This waterproof DC-DC step-down (buck) converter module converts a 15V to 80V DC input to 12V DC output at up to 3A current (36W maximum). It features flying lead inputs and outputs for easy connection to your circuit. 

Specifications:

• Epoxy sealed metal waterproof housing (IP68)
• Lightweight, compact, convenient to use and transport
• Non-isolated
• Protection: Over-current, over-heating, short-circuit, reverse polarity
• Auto recovery
• Input voltage: DC 15V to 80V
• Maximum input current at 3A output: Approximately 1.5A at 24V input, 1A at 36V input
• Output voltage: 12V DC
• Maximum output current: 3A
• Maximum Output Power: 36W
• Efficiency: 90% typical
• No-load current: < 100mA
• Operating temperature: -40C - +80C
• Size (L x W x H): 48.5 * 25 * 20 mm / 1.91 x 0.98 x 0.79 inches (Length including mounting tabs is 65mm / 2.6")
• Weight: 50g / 1.8oz
• Waterproof rating: IP68
• Input and output wire length: 15cm / 6" (approx)

Download the EM15-80S1203 DC-DC Converter PDF Datasheet

Operating Notes:

As with any DC-DC converter, the input DC power supply powering this converter must be capable of providing the maximum power drawn by your load. If the input supply is not capable of providing the power, the converter will fold back the output voltage as necessary. Example: If your load draws 2A at 12V (24W), and the input supply is only capable of providing 24V at 0.5A (12W), the maximum output voltage the converter will deliver is 6V (12W/2A).

Connection: The red and black wires are the +V and -V inputs; the yellow and black wires are the +V and -V outputs. 

• 1X 15V-80V Input to 12V Output 3A 36W DC-DC Step Down Converter