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DC/DC Buck Converter Step Down Voltage Regulator 4V-40V To 1.25V-36V 8A 12A 15A [ optional]

                                        1. Note: 


                                          1. NO.1
                                          2. Buck mode: PWM modulation.
                                          3. Input voltage:DC 4-40V.
                                          4. Output voltage:DC 1.25-36V.
                                          5. Maximum current:8A.
                                          6. Maximum power:200W.
                                          7. Conversion efficiency:94%.
                                          8. Switching Frequency:180KHz.
                                          9. Size:ca. 60mm*41mm 
                                                1. [see above picture]
                                                  recommendation:working under 5A would be better. if want it work with 8A for long time,please add the fan for cooling

                                        1. NO.2
                                          1. 100W 12A DC-DC Converter 4.5-30V to 0.8-28V 5/12v Laptop Car Led step down

                                          2. Module Properties: non-isolated step-down module
                                          3. Input voltage : 4.5-30V
                                          4. Output voltage:   0.8-28V (adjustable)  output must be lower 2V than input.
                                          5. Output Current: 0 - 12A (MAX)
                                          6. Input Current: 12A (MAX) (Please enhance heat dissipation if more than 10A)
                                          7. Output power: natural cooling 100W , enhance heat dissipation 200W (MAX)
                                          8. Conversion efficiency: 95% 
                                          9. Operating Temperature: Industrial (-40°c to +85°c) (ambient temperature exceeds 40°c, lower power use, or to enhance heat dissipation)
                                          10. Short circuit protection: None (Please Install fuses and protection circuits at Input port.)
                                          11. Input Reverse Polarity Protection: None (Please Series diode at the input port.)
                                                      recommendation:working under 8A would be better. if want it work with 10-12A for long time,please add the fan for cooling 

                                            1. NO.3
                                            2. Module : 15A synchronous-rectified buck
                                            3. Module Properties: non-isolated step-down module (BUCK)
                                            4. Input voltage: DC4-32V (Limit 36V)
                                            5. Output voltage: DC1.2-32V continuously adjustable
                                            6. Minimum differential pressure input and output: 1V
                                            7. Output current :0-15A 10A long natural cooling, the temperature does not exceed 60 degrees, the peak of up to 20A. Decrease the amount of higher ambient temperatures use.
                                            8. Operating temperature: -40 to +85 ℃
                                            9. Operating Frequency: 150KHz
                                            10. Conversion efficiency: Up to 98% (efficiency and input and output voltage, current, pressure related)
                                            11. Short circuit protection: Yes (limit current 25A) input fuse is 15A
                                            12. Over-temperature protection: Yes (over-temperature automatically reduce the output current)
                                            13. Input Reverse Polarity Protection: None (if required in the input string into the diode)
                                            14. Installation: four 3mm screws
                                            15. Connection: terminals, solderless, V-IN as an input, V-OUT is an output
                                            16. Module dimensions: length 60mm width 51mm height 22mm
                                                          recommendation:working under 10A would be better. if want it work with 10-15A for long time,please add the fan for cooling 

                                            17. Applications:
                                            18. This module can be applied to the input voltage is higher than the output voltage of the buck areas, such as batteries, power transformers, DIY adjustable power supply, 24V car T of the power supply, automotive LED lights with power, industrial equipment buck, 12V turn 3.3 V, 12V turn 5V, 24V turn 5V, 24V to 12V and so on

                                        • PACKAGE included:
                                    ? X DC voltage regulator ( depends upon of your choice) 
                            •   


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