TRANSISTOR MJE13003
- Transistor Type: NPN
- Max Collector Current(IC): 5A
- Max Collector-Emitter Voltage (VCE): 400V
- Max Collector-Base Voltage (VCB): 700V
- Max Emitter-Base Voltage (VEBO): 9V
- Max Collector Dissipation (Pc): 40 Watt
- Max Transition Frequency (fT): 4 MHz
- Minimum & Maximum DC Current Gain (hFE): 8– 40
- It is built with a special technology that makes this transistor stable and reliable to work on high voltages with very high speed switching capabilities. The device is capable of handling collector-emitter voltage of 400V DC and collector-emitter voltage of 700V DC which makes it ideal to use in wide variety of AC and DC high voltage applications.It can also be used for general purpose switching and amplification purposes.
Price 50 Birr
https://vector4engineering.com/product/mje13003-transistor/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben

INFRARED LED
- High reliability
- High radiant intensity
- Peak wavelength p=940nm
- 2.54mm Lead spacing
- Low forward voltage
- Infrared LEDs are used for remote controls (they’re the little LED in the part you point at your TV) and ‘night-vision’ cameras, and these little blue guys are high powered ones! They are 940nm wavelength, which is what nearly all devices listen to. They’re 20 degree beamwidth, and work great for any kind of remote control application.
Price 40 Birr
https://vector4engineering.com/product/infrared-led/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

VOLTAGE REGULATOR LM317T
- Capable of providing upto 1.5A current at the output.
- Voltage adjustable from 1.2V to 37V
- Requires low external components
- Requires only two external resistors for output adjustment.
- Capable of short circuit protection
- Over heat shutdown function
- Reliable to use in commercial applications
- Maximum input voltage is 40V DC
- Low standby current
Price 50 Birr
https://vector4engineering.com/product/lm317-voltage-regulator/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

L298N MOTOR DRIVER MODULE
- Driver Chip: Double H Bridge L298N
- Motor Supply Voltage (Maximum): 46V
- Motor Supply Current (Maximum): 2A
- Logic Voltage: 5V
- Driver Voltage: 5-35V
- Driver Current:2A
- Logical Current:0-36mA
- Maximum Power (W): 25W
- Heatsink for better performance
- Power-On LED indicator
- This L298N Motor Driver Module is a high power motor driver module for driving DC and Stepper Motors.
- L298N Module can control up to 4 DC motors, or 2 DC motors with directional and speed control.
Price 1250 Birr
https://vector4engineering.com/product/l298-motor-driver-module/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

MULTIMETER TEST LEADS – PROBES
- 1 Pair 1000V 10A Needle Tip Probe for Universal Digital Multimeter Test Leads Pin Wire Pen Cable 80cm
- Probe Color: Gilded
- Sharp contact end
- Compatible with universal multimeters
- Maximum current : 10A
- Test voltage range: 1000V Max
- Cable length: 80cm
- Cat III 1000V copper coated custom painted.
- Reinforced by Silicon Anti-break
- Anti-burn and heat resistant
- Suit for testing IC components
Price 380 Birr
https://vector4engineering.com/product/multimeter-test-leads-probes/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

LIMIT SWITCH V-15-1C25
Ciruit – SPDT
Current rating – 15A (AC), 600mA (DC)
Voltage Rating – AC 250V
Voltage Rating – DC 125V
Actuator type – Round (Pin Plunger)
Termination type – Quick Connect – 0.187″ (4.7mm)
Ingress Protection – IP40
Operating force – 200gf
Release force – 50gf
Pretravel – 0.047″ (1.2mm)
Differential travel – 0.016″ (0.4mm)
Overtravel – 0.040″ (1.0mm)
Operating temperature – -25°C ~ 80°C
Operating position – 0.579″ (14.7mm)
Price 200 Birr
https://vector4engineering.com/product/limit-switch-v-15-1c25/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

HD74LS90P COUNTER/DIVIDER
- Logic Function: Counter/Divider
- Operation Mode: UP Counter
- Number of Elements per Chip: 1
- Number of Element Inputs: 2
- Number of Element Outputs: 4
- Number of Stages: 4
- Reset Type: Asynchronous
- Direction Type: Uni-Directional
- Triggering Type: Negative-Edge
- Maximum Propagation Delay Time @ Maximum CL (ns): 50@5V
- Absolute Propagation Delay Time (ns): 50
- Process Technology: Bipolar
- Typical Operating Supply Voltage (V): 5
- Propagation Delay Test Condition (pF): 15
- Size: 19mm x 8.6mm x 7.2mm
Price 75 Birr
https://vector4engineering.com/product/hd74ls90p-counter-divider/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

SLIDE SWITCH 6 PIN
- 6 Pin 15mm DPDT Black Slide Switch
- Main Color : Black
- Action Type : DPDT
- Terminals Quantity : 6
- Working Power : 0.5A 50V DC
- Contact Resistance : 30mohm Max
- Insulation Resistance : 100ohm Min at 500V DC
- Withstand Voltage : AC 500V for 1 min
Price 50 Birr
https://vector4engineering.com/product/slide-switch-6-pin/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

MQ-3 GAS SENSOR
- Good sensitivity to ALCOHOL gas
- MQ-3 module is suitable for detecting Alcohol, Benzine, CH4, Hexane, LPG, CO. Sensitive material of MQ-3 gas sensor is SnO2, which with lower conductivity in clean air. When the target alcohol gas exist, the sensor’s conductivity is more higher along with the gas concentration rising.
- Power requirements: 5 VDC @ ~165 mA (heater on) / ~60 mA (heater off)
- Current Consumption: 150mA
- DO output: TTL digital 0 and 1 ( 0.1 and 5V)
- AO output: 0.1- 0.3 V (relative to pollution), the maximum concentration of a voltage of about 4V
- Detecting Concentration: 0.05-10mg/L Alcohol
- Interface: 1 TTL compatible input (HSW), 1 TTL compatible output (ALR)
Price 950 Birr
https://vector4engineering.com/product/mq-3-gas-sensor/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben

PAM8403 STEREO AUDIO AMPLIFIER MODULE
- PAM8403 is an Amplifier Board which can be powered using simple 5V input and could drive two 3W + 3W stereo speakers. It is an excellent choice for those who want a Class-D stereo audio amplifier in small board space.
- Operating Voltage: Wide power supply ranges from 2.5V to 5.5V DC
- Dual-channel stereo with high output power (3W+3W Output at 10% THD with a 4Ω Load @5v DC)
- Max Gain 24 dB.
- Filterless architecture
- Low Quiescent Current and Low EMI
- Operating Temperature: -40 to +85°C
- Short Circuit Protection
- Thermal Shutdown
- Superior Low Noise
- Efficiency up to 90%
- Dimensions (LxWxH) in cm 2.1 x 1.8 x .3
Price 550 Birr
https://vector4engineering.com/product/pam8403-stereo-audio-amplifier-module/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

ZK-4WD CAR CHASSIS KIT
- Product size (L x W x H): 25.5 x 15x 6.5 cm / 10.0 x 5.9 x 2.6 inches
Package includes
- Car chassis (acrylic material) – 2
- 20 line speed encoder (non-ordinary six-lane ten-wire) – 4
- Fasteners/T stand – 8
- 8mm M3 Screw – 16
- 30mm M3 Screw – 8
- M3 Nut – 8
- L30 Spacer – 6
- 4 AA battery holder – 1
Price 1800 Birr
https://vector4engineering.com/product/zk-4wd-car-chassis-kit/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

GPS MODULE NEO-M8N
- NEO-M8N Flight Controller GPS Module with On-Board Compass M8 Engine PX4 Pixhawk TR for OCDAY Drone GPS
- Anti jamming Active CW detection and removal.
- Extra onboard SAW band pass filter (NEO-M8N/Q).
- Data-logger For position, velocity, and time (NEO-M8N).
- With sticker, it is easy and quick to install.
- Concurrent GNSS: up to 10 Hz
- tracking sensitivity: -161dBm
- Capture sensitivity: -148dBm
- Cold start time: 38s average
- Warm start time: 35s average
- Hot start time: 1s average
- Capture time: 0.1s Average
- Sensitivity to Tracking & Nav: -167 dBm
- Cold starts: -148 dBm
- Hot starts: -156 dBm
- wide power supply voltage: +3.5V~+5.5V
Price 9500 Birr
https://vector4engineering.com/product/gps-module-neo-m8n/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

TRANSISTOR BD139
- It can drive loads upto 1.5A which is a good feature due to which you can drive many high current components such as high power LEDs, high current relays, motors etc. The collector emitter and collector base voltage is also very high therefore it can easily survive in an electronic circuit that is operated under 80 volts. The collector dissipation is 12.5W due to which it is also ideal to use it in audio amplifier circuits.
- Transistor Type: NPN
- Max Collector Current(IC): 1.5A
- Max Collector-Emitter Voltage (VCE): 80V
- Max Collector-Base Voltage (VCB): 80V
- Max Emitter-Base Voltage (VEBO): 5V
- Max Collector Dissipation (Pc): 12.5 Watt
- Max Transition Frequency (fT): 190 MHz
- Minimum & Maximum DC Current Gain (hFE): 25 – 250
Price 100 Birr
https://vector4engineering.com/product/transistor-bd139/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301

BATTERY HOLDER
- This is a 4xAA battery holder.
- It can hold four AA batteries in series
- Total output voltage 6V
- The leads are about 140mm, and the last 5mm of them are tinned.
Dimensions:
Height: 1.6cm
Length: 5,8cm
Width: 6.4cm
Price 200 Birr
https://vector4engineering.com/product/battery-holder/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

PICKIT3 PROGRAMMER + UNIVERSAL PROGRAMMER SEAT
- PICKIT3 Programmer + PIC ICD2 PICKit 2 PICKIT 3 Programming Adapter Universal Programmer Seat
- USB (Full speed 12 Mbits/s interface to host PC)
- Real-time execution
- MPLAB IDE compatible
- Built-in over-voltage/short circuit monitor
- Firmware upgradeable from PC/web download
- Totally enclosed
- Supports low voltage to 2.0 volts (2.0v to 6.0v range)
- Diagnostic LEDs (power, busy, error)
- Read/write program and data memory of microcontroller
-Erase of program memory space with verification
- Freeze-peripherals at breakpoint
- Program up to 512K byte flash with the Programmer-to-Go
Price 7500 Birr
https://vector4engineering.com/product/pickit3-programmer-universal-programmer-seat/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

WHEEL SPEED ENCODER
- Speed code disk material: PVC
- Motor Encoder Smart Robot Car Chassis Speed Encoder
- Speed Measurement Counting Code- Wheel 20 Lattice DIY for Arduino
Package includes
- 20 line speed encoder (non-ordinary six-lane ten-wire) – 4
- Fasteners/T stand – 8
- 8mm M3 Screw – 16
- 30mm M3 Screw – 8
- M3 Nut – 8
- L30 Spacer – 6
Price 750 Birr
https://vector4engineering.com/product/wheel-speed-encoder/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

MAX 232 LEVEL CONVERTER
- TTL/CMOS to RS232 Converter IC
Can support two conversion at the same time (Dual drivers and Receivers)
- Easy to set-up and initialize
- Operating speed: 120kbit/s
- ±30-V Input Levels
- Operating current: 8mA
- MAX232 is used for TTL/CMOS to RS232 conversion. Meaning most of our Microcontrollers (PIC/ARM/Atmel) operates on TTL/CMOS logic that is it communicates through either 0V or +5V, but our computers work with the help of RS232 which operates at logic level -24V or +24V. So, if we have to interface these microcontrollers with Computer we need to convert the TTL/CMOS logic to RS232 logic.
Price 250 Birr
https://vector4engineering.com/product/max-232-level-converter/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

RAMPS 1.4 BOARD
- RAMPS interfaces an Arduino Mega with the powerful Arduino MEGA platform and has plenty room for expansion.
- Ramps is a driver board designed for 3D printer, based on platform (firmware) Repap.
- It not only drivers four steppers so you can design many types of machines based on it, like CNC, and as a mature platform specially for 3D printer, it can also drive extruder, fans, temperature sensors, SD card, etc.
- The modular design includes plug in stepper drivers and extruder control electronics on an Arduino MEGA shield for easy service, part replacement, upgrade-ability and expansion.
- Additionally, a number of Arduino expansion boards can be added to the system as long as the main RAMPS board is kept to the top of the stack.
- Six different resolutions: full step, half step, 1/4-step,1/8-step,1/16-step,1/32-step.
Price 1750 Birr
https://vector4engineering.com/product/ramps-1-4-board/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301

12V DC MOTOR
- Operating Voltage(V): 12
- Rated Speed (RPM): 200
- Rated Torque(kg-cm): 1.5
- Stall Torque(kg-cm): 5.4
- Load Current (A): 0.3
- No Load Current (A): 0.6
- It comes with Good Quality Gears.
- The metal gears have better wear and tear properties.
- The gearbox is sealed and lubricated with lithium grease and requires no maintenance.
- Although the motor gives 200 RPM at 12V, the motor runs smoothly from 4V to 12V and gives a wide range of RPM, and torque.
- The shaft has a hole for better coupling.
Price 350 Birr
https://vector4engineering.com/product/12v-dc-motor/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING

APM2.8 FLIGHT CONTROLLER BOARD
- APM2.8 Flight Controller Board Built in Compass Straight Pin for RC F450 S500 Quadcopter Drone
- The ArduPilot Mega board can control Planes, Copters and Rovers. All you need to do is load the appropriate software onto the board with a few clicks
- Arduino Compatible!
- Includes 3-axis gyro, accelerometer, along with a high-performance barometer
- Onboard 4 MegaByte Dataflash chip for automatic datalogging
- Optional off-board GPS, uBlox LEA-6H module with Compass.
- One of the first open source autopilot systems to use Invensense’s 6 DoF Accelerometer/Gyro MPU-6000.
- Barometric pressure sensor upgraded to MS5611-01BA03, from Measurement Specialties
- .Atmel’s ATMEGA2560 and ATMEGA32U-2 chips for processing and usb functions respectively.
Price 15000 Birr
https://vector4engineering.com/product/apm2-8-flight-controller-board/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301

PICKIT 3 PROGRAMMER
- USB (Full speed 12 Mbits/s interface to host PC)
- Real-time execution
- MPLAB IDE compatible
- Built-in over-voltage/short circuit monitor
- Firmware upgradeable from PC/web download
- Totally enclosed
- Supports low voltage to 2.0 volts (2.0v to 6.0v range)
- Diagnostic LEDs (power, busy, error)
- Read/write program and data memory of microcontroller
- Erase of program memory space with verification
- Freeze-peripherals at breakpoint
- Program up to 512K byte flash with the Programmer-to-Go
Price 7000 Birr
https://vector4engineering.com/product/pickit-3-programmer/
Address – Megenagna, Zefmesh Grandmall 3rd floor 301
0922787347 Kase/0924468599 Haben
VECTOR FOUR ENGINEERING