Power Regulators & Converters | Surplus Network

XL4015 5A DC Buck Step-down Adjustable Voltage Power Converter w/ LED Voltmeter

USA

XL4015 5A DC Buck Step-down...

$5.95 USD

XL4015 5A DC Buck Step-down...

$5.95 USD

Waterproof DC-DC Converter 12V Step Down to 5V 2 USBs Power Supply Module 3A 15W

USA

Waterproof DC-DC Converter 12V Step...

$5.95 USD

Waterproof DC-DC Converter 12V Step...

$5.95 USD

60W DC Buck Boost Voltage Converter Constant Current Module Step Power Up / Down

USA

60W DC Buck Boost Voltage Converter...

$5.95 USD

60W DC Buck Boost Voltage Converter...

$5.95 USD

2pcs XL4005 5A DC Buck Step Down Voltage Converter Constant Current Power Module

USA

2pcs XL4005 5A DC Buck Step Down...

$5.95 USD

2pcs XL4005 5A DC Buck Step Down...

$5.95 USD

DC-DC Converter 20A300W Step Down Buck-Boost Power Adjustable Charger Board Tool

USA

DC-DC Converter 20A300W Step Down...

$9.97 USD

DC-DC Converter 20A300W Step Down...

$9.97 USD

3S 40A BMS Protection Charging Balance Board For Li-ion Lithium 18650 Battery

USA

3S 40A BMS Protection Charging...

$5.65 USD

3S 40A BMS Protection Charging...

$5.65 USD

10S 30A 36V Li-ion Cell 18650 Battery Protection BMS PCB Board With Balance US

USA

10S 30A 36V Li-ion Cell 18650 Battery...

$9.89 USD

10S 30A 36V Li-ion Cell 18650 Battery...

$9.89 USD

Car Waterproof DC-DC Converter 12V Step Down to 5V Power Supply Module 3A 15W

USA

Car Waterproof DC-DC Converter 12V...

$4.49 USD

Car Waterproof DC-DC Converter 12V...

$4.49 USD

New 10PCS Mini360 3A DC Voltage Step Down Power Converter Buck Module 5V 9V 12V

USA

New 10PCS Mini360 3A DC Voltage Step...

$4.95 USD

New 10PCS Mini360 3A DC Voltage Step...

$4.95 USD

XL4015 5A DC Buck Step-down Adjustable Voltage Power Converter w/ LED Voltmeter

USA

XL4015 5A DC Buck Step-down...

$4.95 USD

XL4015 5A DC Buck Step-down...

$4.95 USD

75W DC Buck Boost Voltage Converter Constant Current Module Step Power Up

USA

75W DC Buck Boost Voltage Converter...

$4.95 USD

75W DC Buck Boost Voltage Converter...

$4.95 USD

10pcs 5V Micro USB 1A 18650 Lithium Battery Charging Board Charger Module TP4056

USA

10pcs 5V Micro USB 1A 18650 Lithium...

$4.95 USD

10pcs 5V Micro USB 1A 18650 Lithium...

$4.95 USD

XL6009 DC Buck Boost Voltage Converter Constant Current Module Step Power Up

USA

XL6009 DC Buck Boost Voltage...

$4.95 USD

XL6009 DC Buck Boost Voltage...

$4.95 USD

5pcs 5V 1A Micro USB 18650 Lithium Battery TP4056 Charging Board Charger Module

USA

5pcs 5V 1A Micro USB 18650 Lithium...

$3.95 USD

5pcs 5V 1A Micro USB 18650 Lithium...

$3.95 USD

2/5/10PCS TP4056 5V 1A Mini/Micro USB 18650 Lithium Battery Charger Board Module

China

2/5/10PCS TP4056 5V 1A Mini/Micro USB...

$3.95 CAD

2/5/10PCS TP4056 5V 1A Mini/Micro USB...

$3.95 CAD

3PCS DC-DC 2A Adjustable Step Up Boost Power Supply Converter Module N108

USA

3PCS DC-DC 2A Adjustable Step Up...

$3.25 USD

3PCS DC-DC 2A Adjustable Step Up...

$3.25 USD

3S 11.1V 12.6V 25A 18650 Li-ion Lithium Battery PCB BMS Protection Board Balance

USA

3S 11.1V 12.6V 25A 18650 Li-ion...

$6.19 USD

3S 11.1V 12.6V 25A 18650 Li-ion...

$6.19 USD

4S 14.8V 30A BMS Protection PCB Cell Board Li-ion Lithium 18650 Battery Balance

USA

4S 14.8V 30A BMS Protection PCB Cell...

$6.19 USD

4S 14.8V 30A BMS Protection PCB Cell...

$6.19 USD

12V To 9V 1.7A 15W DC-DC Step Down Converter DC Power Supply Module Waterproof

USA

12V To 9V 1.7A 15W DC-DC Step Down...

$6.19 USD

12V To 9V 1.7A 15W DC-DC Step Down...

$6.19 USD

12V To 5V 3A 15W DC-DC Step Down Converter DC Power Supply Module Waterproof US

USA

12V To 5V 3A 15W DC-DC Step Down...

$6.19 USD

12V To 5V 3A 15W DC-DC Step Down...

$6.19 USD

FP5139 100W DC Boost Step-up Adjustable Voltage Power Converter LED Voltmeter

USA

FP5139 100W DC Boost Step-up...

$6.95 USD

FP5139 100W DC Boost Step-up...

$6.95 USD

XL4015 5A DC Buck Step Down Power Converter Voltage Current & LED Voltmeter USB

USA

XL4015 5A DC Buck Step Down Power...

$6.95 USD

XL4015 5A DC Buck Step Down Power...

$6.95 USD

4S 14.8V 18650 Li-ion Lithium Battery Cell BMS PCB Protection Board Balance US

USA

4S 14.8V 18650 Li-ion Lithium Battery...

$5.69 USD

4S 14.8V 18650 Li-ion Lithium Battery...

$5.69 USD

5pcs 5V Micro USB 1A 18650 Lithium Battery Charging Board Charger Module TP4056

USA

5pcs 5V Micro USB 1A 18650 Lithium...

$2.99 USD

5pcs 5V Micro USB 1A 18650 Lithium...

$2.99 USD

1 PCS LM2596 DC Adjustable Buck Converter Step Down Power Supply Module 1.23-30V

USA

1 PCS LM2596 DC Adjustable Buck...

$2.99 USD

1 PCS LM2596 DC Adjustable Buck...

$2.99 USD

2pcs Mini360 3A DC Voltage Step Down Power Converter Buck Module 3.3V 5V 9V 12V

USA

2pcs Mini360 3A DC Voltage Step Down...

$1.79 USD

2pcs Mini360 3A DC Voltage Step Down...

$1.79 USD

10Pcs 3A BMS Protection Board For 1S 3.7V 18650 Li-ion lithium Lipo Battery Cell

USA

10Pcs 3A BMS Protection Board For 1S...

$5.89 USD

10Pcs 3A BMS Protection Board For 1S...

$5.89 USD

Lot LM317 DC-DC 2A Buck Adjustable Step-down Power Supply Converter Module

USA

Lot LM317 DC-DC 2A Buck Adjustable...

$2.95 USD

Lot LM317 DC-DC 2A Buck Adjustable...

$2.95 USD

10pcs TP4056 5V 1A Micro USB Lithium Battery Charging Board Charger Module

USA

10pcs TP4056 5V 1A Micro USB Lithium...

$4.89 USD

10pcs TP4056 5V 1A Micro USB Lithium...

$4.89 USD

2pcs TP4056 5V 1A Micro USB 18650 Lithium Battery Charging and Protection Board

USA

2pcs TP4056 5V 1A Micro USB 18650...

$1.95 USD

2pcs TP4056 5V 1A Micro USB 18650...

$1.95 USD

2pcs TP4056 5V 1A Micro USB 18650 Lithium Battery Charging and Protection Board

USA

2pcs TP4056 5V 1A Micro USB 18650...

$1.95 USD

2pcs TP4056 5V 1A Micro USB 18650...

$1.95 USD

1x 10x LM2596S DC-DC 3A Buck Adjustable Step-down Power Supply Converter Module

USA

1x 10x LM2596S DC-DC 3A Buck...

$12.95 USD

1x 10x LM2596S DC-DC 3A Buck...

$12.95 USD

10PCS LM317T LM317 Linear Variable Voltage Current Regulator TO-220

USA

10PCS LM317T LM317 Linear Variable...

$3.65 USD

10PCS LM317T LM317 Linear Variable...

$3.65 USD

10PCS LM7812 L7812 L7812CV 78012 Linear Voltage Regulator 12V 1.5A TO-220 USA

USA

10PCS LM7812 L7812 L7812CV 78012...

$3.20 USD

10PCS LM7812 L7812 L7812CV 78012...

$3.20 USD

10PCS L7808CV L7808 LM7808 7808 Linear Voltage Regulator 8V 1.5A TO-220 USA

USA

10PCS L7808CV L7808 LM7808 7808...

$3.20 USD

10PCS L7808CV L7808 LM7808 7808...

$3.20 USD

10PCS LM7809 L7809 L7809CV 7809 Linear Voltage Regulator 9V 1.5A TO-220 USA

USA

10PCS LM7809 L7809 L7809CV 7809...

$3.20 USD

10PCS LM7809 L7809 L7809CV 7809...

$3.20 USD

3S 20A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Boards 12.6V USA

USA

3S 20A Li-ion Lithium Battery 18650...

$4.99 USD

3S 20A Li-ion Lithium Battery 18650...

$4.99 USD

DC/DC Converter Regulator 24V Step Down to 12V 10A 120W Waterproof Voltage

USA

DC/DC Converter Regulator 24V Step...

$7.69 USD

DC/DC Converter Regulator 24V Step...

$7.69 USD

AA Battery Spring Contact Terminal Lot of 20

USA

AA Battery Spring Contact Terminal...

$2.50 USD

AA Battery Spring Contact Terminal...

$2.50 USD

DC-DC Adjustable Step Down Power Supply Module/Voltage Current LCD Display Shell

USA

DC-DC Adjustable Step Down Power...

$7.49 USD

DC-DC Adjustable Step Down Power...

$7.49 USD

6S 25.2V Li-ion 18650 Lithium Battery BMS Protection PCB Board w/ Balance

USA

6S 25.2V Li-ion 18650 Lithium Battery...

$7.39 USD

6S 25.2V Li-ion 18650 Lithium Battery...

$7.39 USD

DC 3V~6V to 400kV 400000V Boost Step Up Power Module High Voltage Generator

USA

DC 3V~6V to 400kV 400000V Boost Step...

$5.49 USD

DC 3V~6V to 400kV 400000V Boost Step...

$5.49 USD

DC 3V-6V to 400kV 400000V Boost Step-up Power Module High-voltage Generator

USA

DC 3V-6V to 400kV 400000V Boost...

$5.49 USD

DC 3V-6V to 400kV 400000V Boost...

$5.49 USD

5A DC-DC step up power module boost`volt converter 3.3V-35V to 5V 6V 9V 12V 24V

USA

5A DC-DC step up power module...

$5.11 USD

5A DC-DC step up power module...

$5.11 USD

4S 14.8V 30A PCB BMS Protection Board Charger 18650 Lithium Battery Cell Balance

USA

4S 14.8V 30A PCB BMS Protection Board...

$6.55 USD

4S 14.8V 30A PCB BMS Protection Board...

$6.55 USD

LCD 5V USB 3.7V Lithium Li-ion 18650 Battery Charger PCB Module DIY Power Bank

China

LCD 5V USB 3.7V Lithium Li-ion 18650...

$2.75 USD

LCD 5V USB 3.7V Lithium Li-ion 18650...

$2.75 USD

2PCS DC-DC 2A Adjustable Step Up Boost Power Supply Converter Module

USA

2PCS DC-DC 2A Adjustable Step Up...

$2.75 USD

2PCS DC-DC 2A Adjustable Step Up...

$2.75 USD

150W DC-DC Boost Converter 10-32V In to 12-35V Out 6A Step Up Voltage Charger US

USA

150W DC-DC Boost Converter 10-32V In...

$5.79 USD

150W DC-DC Boost Converter 10-32V In...

$5.79 USD

LM2596S DC-DC 3A Buck Adjustable Step-down Power Supply Converter Module Arduino

USA

LM2596S DC-DC 3A Buck Adjustable...

$3.49 USD

LM2596S DC-DC 3A Buck Adjustable...

$3.49 USD

4S 14.8V 16.8V 100A balance Li-ion lithiu 18650 battery BMS protection boaB9

USA

4S 14.8V 16.8V 100A balance Li-ion...

$8.01 USD

4S 14.8V 16.8V 100A balance Li-ion...

$8.01 USD

DC-DC Buck Step Down Converter Module LM2596 Voltage Regulator+Led Voltmeter M3

China

DC-DC Buck Step Down Converter Module...

$2.15 USD

DC-DC Buck Step Down Converter Module...

$2.15 USD

2A Dual USB LCD 5V Lithium Li-ion 18650 Battery Charger Module Charging Board

China

2A Dual USB LCD 5V Lithium Li-ion...

$2.46 EUR

2A Dual USB LCD 5V Lithium Li-ion...

$2.46 EUR

DC/DC 15A Buck Adjustable 4-32V 12V to 1.2-32V 5V Converter Step Down Module DT

USA

DC/DC 15A Buck Adjustable 4-32V 12V...

$9.66 USD

DC/DC 15A Buck Adjustable 4-32V 12V...

$9.66 USD

4S 100A 12.8V w/balance LiFePo4`LiFe 18650battery cell BMS protection PCB boa YF

USA

4S 100A 12.8V w/balance LiFePo4`LiFe...

$9.78 USD

4S 100A 12.8V w/balance LiFePo4`LiFe...

$9.78 USD

1, 3, 5, 10, 15, 20 pcs voltage regulator L7805 - L7815 ; LM 317 1.5A LM7805-15

USA

1, 3, 5, 10, 15, 20 pcs voltage...

$3.18 USD

1, 3, 5, 10, 15, 20 pcs voltage...

$3.18 USD

14S 45A 50.4V Lithium Li-Ion Battery Power Protection BMS PCB Board & Balance

USA

14S 45A 50.4V Lithium Li-Ion Battery...

$16.95 USD

14S 45A 50.4V Lithium Li-Ion Battery...

$16.95 USD

900W DC-DC Boost Converter 8-60V To 10-120V 15A Step Up Power Supply Module US

USA

900W DC-DC Boost Converter 8-60V To...

$21.96 USD

900W DC-DC Boost Converter 8-60V To...

$21.96 USD

2X LM2596 DC-DC Adjustable Buck Converter Step Down Power Supply Module 1.23-30V

China

2X LM2596 DC-DC Adjustable Buck...

$0.99 USD

2X LM2596 DC-DC Adjustable Buck...

$0.99 USD

2S/3S/4S/6SPacks BMS PCB Protection Board For 18650 Li-ion Lithium Battery Cell

China

2S/3S/4S/6SPacks BMS PCB Protection...

$0.99 USD

2S/3S/4S/6SPacks BMS PCB Protection...

$0.99 USD

3S 11.1V 12.6V 25A 18650 Li-ion Lithium Battery BMS PCB Protection Board Balance

China

3S 11.1V 12.6V 25A 18650 Li-ion...

$1.49 USD

3S 11.1V 12.6V 25A 18650 Li-ion...

$1.49 USD

10PCS TP4056 Mini USB 1A Lithium Battery Charger Module Charging Board 4.5V-5.5V

China

10PCS TP4056 Mini USB 1A Lithium...

$2.11 USD

10PCS TP4056 Mini USB 1A Lithium...

$2.11 USD

10PCS L7805CV L7805 7805 Positive Voltage Regulator IC 5V 1A TO-220 - USA

USA

10PCS L7805CV L7805 7805 Positive...

$3.39 USD

10PCS L7805CV L7805 7805 Positive...

$3.39 USD

400W DC-DC Step-up Boost Voltage Converter Constant Current Power Supply Module

Hong Kong

400W DC-DC Step-up Boost Voltage...

$4.74 USD

400W DC-DC Step-up Boost Voltage...

$4.74 USD

400W DC-DC Step Up Boost Buck Voltage Converter Power Supply Module CC-ADJ US

USA

400W DC-DC Step Up Boost Buck Voltage...

$9.98 USD

400W DC-DC Step Up Boost Buck Voltage...

$9.98 USD

3pcs Mini360 3A DC Voltage Step Down Power Converter Buck Module 3.3V 5V 9V 12V

USA

3pcs Mini360 3A DC Voltage Step Down...

$1.75 USD

3pcs Mini360 3A DC Voltage Step Down...

$1.75 USD

2Pcs 9V Battery Holder Case with ON/OFF Switch

USA

2Pcs 9V Battery Holder Case with ...

$6.75 USD

2Pcs 9V Battery Holder Case with ...

$6.75 USD

3S 10A 12V Lithium Battery Charger Protection Boards BMS Li-ion Charging Module

USA

3S 10A 12V Lithium Battery Charger...

$5.09 USD

3S 10A 12V Lithium Battery Charger...

$5.09 USD

LM2596 Buck Step-down Power Converter Module DC 4.0~40 to 1.3-37V LED Volt N36

USA

LM2596 Buck Step-down Power Converter...

$4.75 USD

LM2596 Buck Step-down Power Converter...

$4.75 USD

Lithium Battery Charger Protection Board BMS Li-ion Charging Module 3S 10A 12V

China

Lithium Battery Charger Protection...

$1.51 USD

Lithium Battery Charger Protection...

$1.51 USD

DC-DC Boost Step Up Converter 4.5-32V to 5-42V 5A Adjustable Power Supply Module

USA

DC-DC Boost Step Up Converter 4.5-32V...

$8.98 USD

DC-DC Boost Step Up Converter 4.5-32V...

$8.98 USD

NEW Voltage Protector Brownout Surge Refrigerator 1800 Watts Appliance

USA

NEW Voltage Protector Brownout Surge...

$13.95 USD

NEW Voltage Protector Brownout Surge...

$13.95 USD

DC-DC Converter 10/12/15/20A 150/250/300/400/1200W Step up Step down Buck Boost

China

DC-DC Converter 10/12/15/20A...

$7.78 USD

DC-DC Converter 10/12/15/20A...

$7.78 USD

Micro USB Lithium Li-ion 18650 Battery Charger Module Charging Board+Protection

China

Micro USB Lithium Li-ion 18650...

$1.00 USD

Micro USB Lithium Li-ion 18650...

$1.00 USD

DC 24V to 12V Step Down DC CONVERTER 20A VOLTAGE REGULATOR 20 AMP Buck Module

USA

DC 24V to 12V Step Down DC CONVERTER...

$13.60 USD

DC 24V to 12V Step Down DC CONVERTER...

$13.60 USD

30A 14.8V 4S Li-ion Lithium 18650 Battery BMS PCB Protection Board Cell Balance

China

30A 14.8V 4S Li-ion Lithium 18650...

$2.98 USD

30A 14.8V 4S Li-ion Lithium 18650...

$2.98 USD

DC-DC Buck Step-down 5V-36V to 3.3V 6V 9V 12V 24V 5A Converter Voltage Regulator

China

DC-DC Buck Step-down 5V-36V to 3.3V...

$1.50 USD

DC-DC Buck Step-down 5V-36V to 3.3V...

$1.50 USD

LTC1871 100W DC Boost Step-up Adjustable Voltage Power Converter LED Voltmeter

USA

LTC1871 100W DC Boost Step-up...

$5.75 USD

LTC1871 100W DC Boost Step-up...

$5.75 USD

3S 12.6V 60A w/Balance 18650 Li-ion Lithium Battery BMS Protection Charger Board

USA

3S 12.6V 60A w/Balance 18650 Li-ion...

$5.99 USD

3S 12.6V 60A w/Balance 18650 Li-ion...

$5.99 USD

DC 3v-6v to 400kV 400000V Boost Step-up Power Module High-voltage Generator

China

DC 3v-6v to 400kV 400000V Boost...

$2.58 USD

DC 3v-6v to 400kV 400000V Boost...

$2.58 USD

LED Display DC-DC Step down Adjustable Voltage Converter Module 3V 5V 12V 24v

China

LED Display DC-DC Step down...

$3.99 USD

LED Display DC-DC Step down...

$3.99 USD

6pcs MT3608 DC 2A Step Up Power Booster Module 2-24v Boost Converter for Arduino

USA

6pcs MT3608 DC 2A Step Up Power...

$7.77 USD

6pcs MT3608 DC 2A Step Up Power...

$7.77 USD

DC 3v-6v to 400kV 400000V Boost Step-up Power Module High-voltage Generator

China

DC 3v-6v to 400kV 400000V Boost...

$2.18 USD

DC 3v-6v to 400kV 400000V Boost...

$2.18 USD

Lot LM2596S DC-DC 3A Buck Adjustable Step-down Power Supply Converter Module

USA

Lot LM2596S DC-DC 3A Buck Adjustable...

$4.25 USD

Lot LM2596S DC-DC 3A Buck Adjustable...

$4.25 USD

AC-DC Power Supply Buck Converter Step Down Module 3.3V 5V 9V 12V 15V 24V 36V US

USA

AC-DC Power Supply Buck Converter...

$7.07 USD

AC-DC Power Supply Buck Converter...

$7.07 USD