How to Place an Order
Store Pick Up
Request for Quotation/ International Sourcing
Order Status
Reference: RBD-1354
Length: 8 inches/20 CM (Long) Material: Copper Plated Pin Spacing: 2.54mm.
Reference: RBD-0351
Contactless transmission of data and supply energy (no battery needed) Operating distance: Up to 100mm (depending on antenna geometry) RoboticsBD Operating frequency: 13.56MHz Data transfer: 106 kbit/s Data integrity: 16 Bit CRC, parity, bit coding bit counting Anticollision Typical ticketing transaction: <100 ms ( including backup management)...
Reference: 0245
Choose your desire Resistor value from below:
Reference: 0031
3 Types Available (Please select from option) 1. Male to Male 2. Male to Female 3. Female-Female
Reference: RBD-0768
Size: 5mm Color: RED Head Shape: Round Lens Appearance: Transparent
Reference: RBD-0761
Breadboard friendly Mounting Style: Through Hole Mounting Direction: Vertical
Reference: 1353
Length: 12.5 inches/30 CM (Long) Material: Copper Plated Pin Spacing: 2.54mm.
Store Pickup Available!
Free Ship Over 5000 BDT
Quality Product
No Warranty
No Replacement
ZK-SJ4 is a DC adjustable constant voltage, constant current step down/up power supply module. Adjustable stable output voltage and current, set output current to meet the demand. It can be used as ordinary buck power supply module, charger and LED constant current driver. Support solar charging. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
| General Specification | |
| Product Name: | ZK-SJ4 4A Step Down/Up Power Supply Module |
| Product Number: | ZK-SJ4 |
| Working Voltage: | DC 4.8V-30V |
| Output Voltage: | DC 0.5V-30V |
| Output Current: | 4A (4A need heat sink; 3A is stable for long time) |
| Output Power: | 60W (60W need heat sink;35W is for 3A) |
| Conversion efficiency: | About 94% |
| Working current: | 30mA |
| Under voltage Protection: | Yes(Self-recovery) |
| Anti-backflow Protection: | Yes |
| Short Protection: | Yes |
| Work frequency: | 180KHz |
| Working Temperature range: | -20℃~85℃ |
| Working Humidity range: | 0%-95%RH |
| Size: | 68*37*22mm |
| Heat sink size: | 48*16*10mm |
| Shipment Weight | 0.040 kg |
| Shipment Dimensions | 10 × 7 × 3 cm |
Please allow 5% measuring deviation due to manual measurement.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
1.1>.Connect right input voltage at input terminal;
1.2>.Adjust CV constant voltage potentiometer to set output voltage according to require.
1.3>.Rotate CC potentiometer counterclockwise more than 10 turns at first.
1.4>.Test Output short circuit current by multimeter at 10A or 20A(Connect two Test Probes to output terminal on module)
1.5>.Rotate CC constant current potentiometer clockwise to set output current according to require overcurrent protection value.
1.6>.Test and using(E.g:Module’s maximum output current is 2A if display 2A on multimeter.Red LED indicator will turn on if output reach to 2A.Otherwise LED is OFF.)
1.7>.The output voltage will decrease due to the current sampling resistor at the output. The higher the current, the more the voltage is reduced.
2.1>.Tops:Power module can not be used as charger module if it does not support constant current function.The voltage difference between the battery with insufficient voltage and the charger is very large.Causes excessive charging current even damage the battery.So it need keep charging in constant current mode to reaching a certain level.Then automatically switch back to constant voltage charging.
2.2>.Make sure floating charge voltage and charge current for battery.If the lithium battery’s parameter is 3.7V/2200mAh, then the float charge voltage is 4.2V, and the maximum charging current is 1C, which is 2200mA.
2.3>.Connect right input voltage at input terminal.(Note:Please don’t connect load during set parameter).
2.4>.Test output voltage by multimeter and adjust CC potentiometer to make sure output voltage reach to require floating charge voltage.(If charge a 3.7V lithium battery, adjust the output voltage to 4.2V)
2.5>.Rotate CC potentiometer counterclockwise more than 10 turns at first.
2.6>.Test Output short circuit current by multimeter at 10A or 20A(Connect two Test Probes to output terminal on module)
2.7>.Rotate CC constant current potentiometer clockwise to set output current according to require charge current value.
2.8>.Connect battery at output terminal and start to charging.
3.1>.Make sure LED working current and maximum working voltage.
3.2>.Connect right input voltage at input terminal.(Note:Please don’t connect load during set parameter).
3.3>.Test output voltage by multimeter at output terminal and adjust CV potentiometer to set output voltage to LED’s maximum working voltage.
3.4>.Rotate CC potentiometer counterclockwise more than 10 turns.
3.5>.Test Output short circuit current by multimeter at 10A or 20A(Connect two Test Probes to output terminal on module)
3.6>.Rotate CC constant current potentiometer clockwise to set output current according to require LED working current.
3.7>.Connect LED and test.
1 x Solar Charger Controller Adjustable Step-Up / Down Automatic Power Module.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
The latest price of Solar Charger Controller Adjustable Step-Up / Down Automatic Power Module in Bangladesh is BDT 659 You can buy the Solar Charger Controller Adjustable Step-Up / Down Automatic Power Module at best price from our RoboticsBD or visit RoboticsBD Office.
|
Please note that the product information provided on our website may not be entirely accurate as it is collected from various sources on the web. While we strive to provide the most up-to-date information possible, we cannot guarantee its accuracy. We recommend that you always read the product labels, warnings, and directions before using any product. |
|
Product Images are shown for illustrative purposes only and may differ from the actual product. |
Reference: RBD-0395
Input voltage range: 4V-38V DC Output voltage range: 1.25V-36V DC adjustable. Output current: 0-5A. Output power: 75W. High efficiency up to 96% The built-in thermal shutdown function Built-in current limit function In-Built output short protection function. RoboticsBD
Reference: RBD-0406
Input voltage: 4.5-35V, Output voltage: (3-35V) continuously adjustable (recommended load debugging). Minimum pressure: 1.5V Output current: rated current 2A, 3A maximum Output Power: 15W maximum. RoboticsBD
Reference: RBD-0623
Input voltage range: 6-26V Output voltage: 5.2V (consider the charge line loss, the output is 5.2V or so, the load side is about 5V) Output current: 3A (in the absence of a heat sink device, the stable output current is 2A) Two output Port can charge two devices simultaneously. RoboticsBD
Reference: RBD-0696
Voltage : Input through (USB) DC 5V Output via (DC Round Pin) : DC 12V Color: BLACK Input / Output Current: Maximum Input 0.6 Easier for installation save time and money Easy to use.
Reference: RBD-0916
ROHS approved Mini Solar panel The solar cells are encased and protected by a durable outer poly frame Polycrystalline silicon Max work voltage:5V Max work current: 200ma Dimension: 90mm×90mmx3mm RoboticsBD
Reference: RBD-0917
ROHS approved Mini Solar panel The solar cells are encased and protected by a durable outer poly frame Polycrystalline silicon Max work voltage:5V Max work current: 80ma Dimension: 60mm×60mmx3mm
Reference: RBD-1209
Package type: leaded Package form: top view Radiant sensitive area (in mm2): 7.5 High photo sensitivity High radiant sensitivity Suitable for visible and near infrared radiation Fast response times Angle of half sensitivity: phi = ± 65°
Reference: RBD-1524
Input Voltage(VDC): 4 ~ 40. Output Voltage(VDC): 1.3 ~ 37. Output Current: 2A Rated, ( 3A maximum with heat sink). Switching Frequency: 150 kHz. Input reverse polarity protection. Built-in output short protection function.
Reference: RBD-1545
Input voltage 9~40V Output: 5V Maximum output current 2A Efficiency: 76-90% Material: electronic component
Reference: RBD-1559
Support charging and discharging at the same time Large current Small size High efficiency Support short circuit protection
Reference: RBD-1560
Support charging and discharging at the same time Large current Small size High efficiency Support short circuit protection
Reference: RBD-1646
Input Voltage: 220VAC Output Voltage: 5 VDC. Output Power: 3.5W. Output overload and short circuit protection.
Reference: RBD-1754
It’s efficient up to 93% It can source a good amount of current The maximum output current: 2A Input voltage: 2V-24V DC The maximum output voltage: 5V-28V DC
Reference: RBD-1764
High Power DC-DC Step Down Module Input Voltage: 5-40V DC Output Voltage: 1.2-36V DC Efficiency: 95% Maximum Power: 200W
Reference: RBD-1769
Input Voltage: 4.5V – 28V Output Voltage: 0.8V – 20V Output Voltage Adjustment: On-board potentiometer Output Current: 1.8A (typical), 3.0A (max). Ceramic Capacitor Stable Internal Soft-Start Internally Set Current Limit without a Current Sensing Resistor
Reference: RBD-1771
It’s efficient up to 93% It can source a good amount of current The maximum output current: 2A Input voltage: 2V-24V DC The maximum output voltage: 5V-28V DC
Reference: RBD-1855
Input voltage: 3-40V Output voltage: 1.5-35V(Adjustable) Output current: Rated current is 2A, maximum 3A Switching Frequency: 150KHz Operating temperature:Industrial grade (-40 to +85 ) Conversion efficiency: 92%(highest)
Reference: RBD-0494
Input Voltage (V): 100 ~ 280 VAC @50 ~ 60Hz. Input current (mA): 100. Output Power: 12V 2A. Input Plug: 2-Pin USA type. Output Plug: 5.5mm DC plug. RoboticsBD Model: STD-120200
Reference: RBD-0919
Dimension: 25 x 19 x 10 (LxWxH)mm. Input interface: micro USB. Current Protection: Yes Charging mode: Linear charging. Current: 1A adjustable. Charge precision: 1.5%. Input voltage: 4.5V-5.5V. Full charge voltage: 4.2V.
Reference: RBD-2121
Suitable for Arduino, DIY & Hobby Kits, and 6V servos and motor Rated Input AC Voltage 100v-240v It comes with a 1 meter long cable Stabilized DC Output with Low Ripples & Interference Short Circuit & Overload Protection High Efficiency & Low Energy Consumption RoHS and BIS compliance Approved.
Reference: RBD-2462
HW-212 is a DC adjustable constant voltage constant current step down power supply module with LCD display.HD display input voltage and output voltage, current, power and display status.Adjustable stable output voltage and current.Set output current to meet the demand.It can be used as ordinary buck power supply module, charger and LED constant current...
Reference: RBD-1421
3S 11.1V 12.6V 20A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery). Application: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650.26650, a polymer lithium battery). Continuous discharge current (upper limit): 20A (if the cooling environment is not good, please reduce the load current use). Continuous...
Reference: RBD-2447
Ultra small module converts 4.5 – 24V input down to a 0.8 – 22V output @ up to 2A.
Reference: RBD-2222
DC-DC buck converter module Converts 24V/12V to 5V 5A output current High efficiency synchronous rectification With USB port and terminal blocks Easy to use
Reference: RBD-0988
Hold 3 standard 18650 batteries. Wire Length: 15 cm. Output: 11.1 V. Dimension (Appro.) : 76 x 60 x 18 mm. Weight: 18 gm. High-quality plastic material
Reference: RBD-1559
Support charging and discharging at the same time Large current Small size High efficiency Support short circuit protection
Reference: RBD-1673
Supports Qualcomm Quick Charge 3.0 fast charging protocol Has both "USB type C" and "Micro USB" port for charging power bank battery Power bank battery can be fast-charged (up to 15 watts) with QC 3.0 supported fast chargers Two "USB A" ports with maximum 18-watt power delivery from the power bank Power bank battery level indicator LEDs and power on/off...
Reference: RBD-1309
Input Voltage (V): 100 ~ 280 VAC @50 ~ 60Hz. Input current (mA): 100. Output Power: 5V 3A. Load regulation (%): ±5. Input Plug: 2-Pin EU type. Output Plug: Micro USB Plug. Compatible with: Raspberry Pi B+, 2, 2B, 2B+,3 ,3B+, Zero, Zero W. It has a switch so you can easily power off the device without having to unplug it right from the socket.
Reference: RBD-2356
The Type-C 3A High Power 12V 18650 Lithium Battery Boost Charging Module is designed for non-power failure applications where seamless power supply switching is required. It allows for external power supply usage when available and automatically switches to battery power during power outages. When utilizing the USB interface for power supply, it is...
Reference: RBD-1697
Brand: DFRobot
Takes a 6-12V input voltage. Outputs a selectable 5V or 3.3V regulated voltage. All headers are 0.1" pitch for simple insertion into a breadboard. Powered from 6-12 DC2.1 power jack or from USB power. The maximum current it can provide is 500mA.
Reference: RBD-1955
Maximum Output Current: 3.3A MAX Conversion efficiency: can up to 97.5% Switch frequency: 500KHz Operating temperature: Industrial grade (-40 ° to + 85 °) Improve conversion efficiency
Reference: RBD-0282
Specifications: - 3.3V and 5V dual power output- 3.3V and 5V IO compatible- USB2.0 protocol- BitBang mode ready- Easily connected to PC via mini USB cable- Support XBee-setting with software X-CTU
Reference: RBD-1876
Input Voltage (V): 100 ~ 280 VAC @50 ~ 60Hz. Input current (mA): 100. Output Power: 12V 1.8. Input Plug: 2-Pin USA type. Output Plug: 5.5mm DC plug. Model: HS 121800
Reference: RBD-0696
Voltage : Input through (USB) DC 5V Output via (DC Round Pin) : DC 12V Color: BLACK Input / Output Current: Maximum Input 0.6 Easier for installation save time and money Easy to use.
Reference: RBD-1885
AC Input Voltage: 100 ~ 240 V Output Voltage(V): 9V Output Current (Amp): 300mA Rated Frequency (Hz): 50 – 60. Cable Length: Approx 1.1m
Reference: RBD-1786
1. USB Type C Female ( 13pin, C type, female connector ) 2. Base Material: FR4. 3. Board Thickness: 1.6mm. 4. Size: 40 x 25 mm .
Reference: RBD-0215
AC 100~240v or 12V DC input The cables come with a fitted fuse. Microprocessor controlled Li-ion, LiPo, and LiFe capable Input voltage monitoring. (Protects car batteries at the field) Battery break-in and cycling feature Data storage (Store up to 5 packs in memory) Internal resistance checker to see pack health Delta-peak sensitivity Individual cell...
Reference: RBD-1771
It’s efficient up to 93% It can source a good amount of current The maximum output current: 2A Input voltage: 2V-24V DC The maximum output voltage: 5V-28V DC
Reference: RBD-1524
Input Voltage(VDC): 4 ~ 40. Output Voltage(VDC): 1.3 ~ 37. Output Current: 2A Rated, ( 3A maximum with heat sink). Switching Frequency: 150 kHz. Input reverse polarity protection. Built-in output short protection function.
Reference: RBD-1781
1. Micro USB ( 5pin, B type, female connector ) 2. Base Material: FR4. 3. Board Thickness: 1.6mm. 4. Size: 16 x 14 mm .
Reference: RBD-1705
3A DC-DC Buck Step-down Converter Constant Voltage 5V Fixed Output Module
Reference: RBD-2547
AC-DC Single Output Enclosed power supply; Output 12VDC Single Output at 2.1A; free air convectionBrand New (RoboticsBD)
Reference: RBD-2370
Module Properties: non-isolated Buck-Boost constant current, constant voltage module (CC-CV) charging module Battery charger (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery charging, nickel-cadmium nickel-metal hydride batteries (battery) charger, solar panels, wind generators. Solar Panel, Wind generator voltage regulator, Car Power Supply
Reference: RBD-1646
Input Voltage: 220VAC Output Voltage: 5 VDC. Output Power: 3.5W. Output overload and short circuit protection.
Reference: RBD-1855
Input voltage: 3-40V Output voltage: 1.5-35V(Adjustable) Output current: Rated current is 2A, maximum 3A Switching Frequency: 150KHz Operating temperature:Industrial grade (-40 to +85 ) Conversion efficiency: 92%(highest)
Reference: RBD-1957
Input Voltage: 12V Connector: 5.5mm DC Jack Output power on/off switch Two-row multiple pin outputs, easy to use and connect Outputs 3.3V DC at 800mA maximum current Outputs 5.0V DC at 800mA maximum current Outputs 12V DC (the 12V output is directly connected to the input, i.e. with 12VDC input, this output will be 12VDC; with 9VDC input, this output will...
Reference: RBD-1892
Input interface: micro USB. Current Protection: Yes Charging mode: Linear charging. Current: 1A adjustable. Charge precision: 1.5%. Input voltage: 4.5V-5.5V. Full charge voltage: 4.2V.
Reference: RBD-2074
Output SPDT Relay. Header connector for connecting power and trigger voltage. Screw terminal connector for easy relay output connection. Note: Relay might be different from the picture as per stock
Reference: RBD-1873
Operating Voltage: 4-30V VDC It is a 2-wire display. LED Color: Red Current Consumption: Less than 20mA, generally 5-15mA Accuracy: 0.1 V. Refresh Speed: Approx 300mS/time.
Reference: RBD-0983
Capacity (mAh): 960-2000 Output Voltage: 3.7V High energy density High working voltage for single battery cells. Pollution-free Long cycle life SMALL SUN
Reference: RBD-0022
Affordable Price Operating Voltage: 5 V Sonar Sensing Range: 2-400 cm Max. Sensing Range: 450 cm Frequency: 40 kHz RoboticsBD
Reference: RBD-0840
Dimension: 14.5×6 cm Copper Thickness 1-4 OZ Board Thickness 1.1 mm Board color: Brown
Reference: RBD-0994
Current Rating: 10 Amps Operating Voltage: 12 Volts Switch Type: Rocker Switch, SPST Terminal: Spst Mounting Type: Tension
Reference: RBD-1444
IC Name: S8050 Bipolar Transistor Package/Case: DIP-3
