• Banner

    Reset / Enable Controller - KA75330 3.3V Voltage Detector Robotics Bangladesh
    • Reset / Enable Controller - KA75330 3.3V Voltage Detector Robotics Bangladesh

    Reset / Enable Controller - KA75330 3.3V Voltage Detector

    RBD-2748

    • KA75330 3.3V voltage detector for reset/enable control
    • Prevents microcontrollers from running at dangerously low voltages
    • Monitors supply voltage and pulls output low below 3.3V
    • Starts operating from as low as 0.8V, ensuring early protection
    • Ideal for Li-Po battery-powered projects and ESP8266/Feather boards
    • Compact, reliable solution for power startup and stability issues
    BDT 70
    BDT 70 BDT 70 BDT 70 BDT 70
    Tax excluded Tax includedTax excludedTax includedTax excluded
    BDT 70 Tax excluded
    BDT 70 Tax included
    BDT 0 Tax
    BDT 70 Tax excluded
    BDT 0 Tax
    BDT 70 Tax included
    Quantity
    In-Stock
    100 Items

    100 items in stock
    Description

    The KA75330 3.3V Voltage Detector is a compact reset/enable controller designed to safeguard microcontrollers and circuits from unstable operation at low voltages. It continuously monitors the supply voltage, and when the level drops below 3.3V, the output pin is pulled low, effectively disabling the system until stable power is restored. This ensures devices such as ESP8266-based Feather boards or other Li-Po powered systems avoid lockups, corrupted data, or failed startups. With its ability to start working from voltages as low as 0.8V, it provides early-stage protection during power-up. Requiring just a pair of 2.2µF electrolytic capacitors for stable operation, the KA75330 is a simple yet highly effective solution for reliable and safe circuit design. 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 

    Features:

    1. Detects and regulates low voltage conditions at 3.3V threshold.

    2. Pulls output low when supply voltage drops below 3.3V.

    3. Starts functioning at input voltages as low as 0.8V.

    4. Prevents microcontrollers from lockups and corrupted data.

    5. Simple integration with microcontrollers having Enable pins.

    6. Compact design, suitable for battery-powered devices.

    7. Improves power-up reliability and system stability.

    RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD 

    Applications:

    1. Protecting microcontrollers from unstable low-voltage operation.

    2. Li-Po battery-powered circuits (e.g., Feather boards, ESP8266).

    3. Reset/enable control in embedded electronics projects.

    4. Preventing lockups or corrupted data during low battery conditions.

    5. Educational and DIY projects requiring reliable power management.

    RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD 

    General Specifications
    Product TypeVoltage Detector / Reset Controller
    ModelKA75330
    Detection Voltage3.3V
    Startup Voltage0.8V
    Output BehaviorPulls low when V < 3.3V
    Required Capacitors2.2µF electrolytic (input & output)
    Suitable ForMicrocontrollers with Enable pin
    ApplicationPower stability, reset/enable control
    Shipment Weight0.0005 kg
    Shipment Dimensions2 × 2 × 2 cm

    Please allow 5% measuring deviation due to manual measurement.

    RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD 

    Package Includes:

    1 x Reset / Enable Controller - KA75330 3.3V Voltage Detector

    RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD 

    RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD 

    Product Details
    RBD-2748
    100 Items

    Specific References

    EAN13
    2748
    Comments (0)
    Grade
    No customer reviews for the moment.
    16 other products in the same category:
    INA219 DC Current Measurement Module Robotics Bangladesh

    Reference: RBD-2735

    INA219 DC Current Measurement Module

    (0)
    INA219 DC current and voltage measurement module with I2C interface Measures high-side current up to 3.2A with 0.8mA resolution Supports load voltages from 0–26VDC Powered by 3–5V, compatible with both 3.3V and 5V logic MCUs Integrated 0.1Ω shunt resistor ensures accurate measurements Adjustable I2C address for multiple modules on the same bus
    BDT 219
    BDT 219 tax incl.
    BDT 219 tax excl.
    BDT 219 tax excl.
    BDT 219 tax incl.
    BDT 219 tax incl.
    BDT 0 Tax
    BDT 219 tax excl.
    BDT 219 tax excl.
    BDT 0 Tax
    BDT 219 tax incl.
    More INA219 DC Current Measurement Module
    In-Stock
    In stock: 56
    Honeywell HMC5983 Temperature Compensated Three-Axis Digital Compass Robotics Bangladesh

    Reference: RBD-0574

    Honeywell HMC5983 Temperature Compensated Three-Axis Digital Compass

    (0)
    3-Axis Magnetoresistive Sensors and ASIC in a 3.0x3.0x0.9mm LCC Surface Mount Package Temperature Compensated Data Output and Temperature Output Automatic Offset Compensation. RoboticsBD
    BDT 949
    BDT 949 tax incl.
    BDT 949 tax excl.
    BDT 949 tax excl.
    BDT 949 tax incl.
    BDT 949 tax incl.
    BDT 0 Tax
    BDT 949 tax excl.
    BDT 949 tax excl.
    BDT 0 Tax
    BDT 949 tax incl.
    More Honeywell HMC5983 Temperature Compensated Three-Axis Digital Compass
    In-Stock
    In stock: 24
    Sold-out REDBOT SENSOR - MECHANICAL BUMPER Robotics Bangladesh REDBOT SENSOR - MECHANICAL BUMPER Robotics Bangladesh

    Reference: RBD-1699

    Brand: SparkFun Electronics

    REDBOT SENSOR - MECHANICAL BUMPER

    (0)
    Simple switches Detect a collision SPST switch
    BDT 900
    BDT 900 tax incl.
    BDT 900 tax excl.
    BDT 900 tax excl.
    BDT 900 tax incl.
    BDT 900 tax incl.
    BDT 0 Tax
    BDT 900 tax excl.
    BDT 900 tax excl.
    BDT 0 Tax
    BDT 900 tax incl.
    More REDBOT SENSOR - MECHANICAL BUMPER
    Sold-out
    In stock: 0
    QRE1113 IR LED Infrared Reflection Sensor Module Robotics Bangladesh

    Reference: RBD-2842

    QRE1113 IR LED Infrared Reflection Sensor Module

    (0)
    Compact IR reflection sensor module based on QRE1113 Digital output, no ADC required – ideal for microcontrollers Operates at both 3.3V and 5V for wide compatibility Accurate surface detection at ~3mm optimal distance Perfect for line-following robots and surface detection projects Easy 3-pin header connection with onboard mounting hole
    BDT 150
    BDT 150 tax incl.
    BDT 150 tax excl.
    BDT 150 tax excl.
    BDT 150 tax incl.
    BDT 150 tax incl.
    BDT 0 Tax
    BDT 150 tax excl.
    BDT 150 tax excl.
    BDT 0 Tax
    BDT 150 tax incl.
    More QRE1113 IR LED Infrared Reflection Sensor Module
    In-Stock
    In stock: 41
    TSL2591 High Dynamic Range Digital Light Sensor Robotics Bangladesh

    Reference: RBD-2347

    TSL2591 High Dynamic Range Digital Light Sensor

    (0)
    TSL2591 High Dynamic Range Digital Light Sensor for precise lux measurements Measures IR, full-spectrum, and human-visible light separately Lux range: 188 uLux to 88,000 Lux with 600,000,000:1 dynamic range Low power consumption: 0.4mA during sensing, &lt;5uA in power-down mode Compact I2C-compatible module ideal for microcontroller integration
    BDT 850
    BDT 850 tax incl.
    BDT 850 tax excl.
    BDT 850 tax excl.
    BDT 850 tax incl.
    BDT 850 tax incl.
    BDT 0 Tax
    BDT 850 tax excl.
    BDT 850 tax excl.
    BDT 0 Tax
    BDT 850 tax incl.
    More TSL2591 High Dynamic Range Digital Light Sensor
    In-Stock
    In stock: 8
    MQ-2 Gas Sensor Module Robotics Bangladesh

    Reference: RBD-2075

    MQ-2 Gas Sensor Module

    (0)
    MQ-2 Smoke Gas Detector Sensor  ME084 Module for Arduino Operating Voltage:+5V Preheat Duration:20 s
    BDT 290
    BDT 290 tax incl.
    BDT 290 tax excl.
    BDT 290 tax excl.
    BDT 290 tax incl.
    BDT 290 tax incl.
    BDT 0 Tax
    BDT 290 tax excl.
    BDT 290 tax excl.
    BDT 0 Tax
    BDT 290 tax incl.
    More MQ-2 Gas Sensor Module
    In-Stock
    In stock: 50
    Sold-out AMG8833 IR Infrared Thermal Camera Breakout (Adafruit Compatible) Robotics Bangladesh

    Reference: RBD-0720

    AMG8833 IR Infrared Thermal Camera Breakout (Adafruit Compatible)

    (0)
    Temperature detection of the two-dimensional area: 8 × 8 (64 pixels). Digital output (capability of temperature value output). Compact SMD package (adaptively to reflow mounting). RoHS compliant. RoboticsBD
    BDT 8,550
    BDT 8,550 tax incl.
    BDT 8,550 tax excl.
    BDT 8,550 tax excl.
    BDT 8,550 tax incl.
    BDT 8,550 tax incl.
    BDT 0 Tax
    BDT 8,550 tax excl.
    BDT 8,550 tax excl.
    BDT 0 Tax
    BDT 8,550 tax incl.
    More AMG8833 IR Infrared Thermal Camera Breakout (Adafruit Compatible)
    Sold-out
    In stock: 0
    GY-801 - Multi Sensor Board Robotics Bangladesh GY-801 - Multi Sensor Board Robotics Bangladesh

    Reference: RBD-0288

    GY-801 10DOF IMU BMP180 ADXL345 HMC5883L L3G4200D Sensor Module

    (0)
    Three selectable full scales (250/500/2000dps) Factor in all g-ranges, up to 13-bit resolution at ±16 g 12-Bit ADC Coupled with Low Noise ARM Sensors Achieves 5 milli-gauss Resolution in ±8 Gauss Fields Pressure range:300 to1100hPa (+9000m to -500m above sea level) I2C interfaces Power supply: 3-5v
    BDT 3,350
    BDT 3,350 tax incl.
    BDT 3,350 tax excl.
    BDT 3,350 tax excl.
    BDT 3,350 tax incl.
    BDT 3,350 tax incl.
    BDT 0 Tax
    BDT 3,350 tax excl.
    BDT 3,350 tax excl.
    BDT 0 Tax
    BDT 3,350 tax incl.
    More GY-801 10DOF IMU BMP180 ADXL345 HMC5883L L3G4200D Sensor Module
    In-Stock
    In stock: 12
    Sold-out IR Beam Interruption Sensor - LED 3mm - 0-50 cm Robotics Bangladesh IR Beam Interruption Sensor - LED 3mm - 0-50 cm Robotics Bangladesh

    Reference: RBD-2661

    IR Beam Interruption Sensor - LED 3mm - 0-50 cm

    (0)
    Infrared beam interruption sensor with 0–50 cm detection range Features a 3mm IR LED with a narrow 10° illumination angle Operates on 3.3V–5V, compatible with Arduino & microcontrollers Fast 2 ms response time for accurate object detection Open-collector output with pull-up resistor support Ideal for measuring gates, counters, automation &...
    BDT 450
    BDT 450 tax incl.
    BDT 450 tax excl.
    BDT 450 tax excl.
    BDT 450 tax incl.
    BDT 450 tax incl.
    BDT 0 Tax
    BDT 450 tax excl.
    BDT 450 tax excl.
    BDT 0 Tax
    BDT 450 tax incl.
    More IR Beam Interruption Sensor - LED 3mm - 0-50 cm
    Sold-out
    In stock: 0
    Non-invasive AC current Sensor Split Core Current Transformer SCT-013-000 100A Robotics Bangladesh Non-invasive AC current Sensor Split Core Current Transformer SCT-013-000 100A Robotics Bangladesh

    Reference: RBD-1173

    Non-invasive AC current Sensor Split Core Current Transformer SCT-013-000 100A

    (0)
    Input Current : 100A Frequency: 50HZ-150KHZ Opening Size: 13 x 13mm/ 0.5″ x 0.5″(L*W) Output Plug 3.5mm Dielectric Strength 6000V AC/1min Meet UL94-V0 flame retardant properties
    BDT 775
    BDT 775 tax incl.
    BDT 775 tax excl.
    BDT 775 tax excl.
    BDT 775 tax incl.
    BDT 775 tax incl.
    BDT 0 Tax
    BDT 775 tax excl.
    BDT 775 tax excl.
    BDT 0 Tax
    BDT 775 tax incl.
    More Non-invasive AC current Sensor Split Core Current Transformer SCT-013-000 100A
    In-Stock
    In stock: 4
    TCRT 5000 Dual Channel Line Tracking Sensor Robotics Bangladesh

    Reference: RBD-2836

    TCRT 5000 Dual Channel Line Tracking Sensor

    (0)
    Dual-channel IR reflective sensor module using TCRT5000 for line tracking Operating voltage 3.5V–5V with onboard LM393 comparator Adjustable sensitivity via onboard potentiometer Detects black/white surfaces, obstacles, and pulse data sampling Compact and lightweight design for robotics and automation projects Ideal for line-following robots, object...
    BDT 168
    BDT 168 tax incl.
    BDT 168 tax excl.
    BDT 168 tax excl.
    BDT 168 tax incl.
    BDT 168 tax incl.
    BDT 0 Tax
    BDT 168 tax excl.
    BDT 168 tax excl.
    BDT 0 Tax
    BDT 168 tax incl.
    More TCRT 5000 Dual Channel Line Tracking Sensor
    In-Stock
    In stock: 217
    Hi-Link LD2420 24GHz Radar Sensor Module Robotics Bangladesh

    Reference: RBD-3222

    Brand: Hi-Link

    Hi-Link LD2420 24GHz Radar Sensor Module

    (0)
    Hi-Link LD2420 – high-sensitivity 24GHz FMCW radar sensor for human presence detection. Detects both motion and stationary targets with high precision and reliability. Detection range: up to 8m (wall-mounted) or 5m (ceiling-mounted). UART interface + digital output for easy integration with microcontrollers. Low power consumption (3.3V, ~50mA) ideal for...
    BDT 550
    BDT 550 tax incl.
    BDT 550 tax excl.
    BDT 550 tax excl.
    BDT 550 tax incl.
    BDT 550 tax incl.
    BDT 0 Tax
    BDT 550 tax excl.
    BDT 550 tax excl.
    BDT 0 Tax
    BDT 550 tax incl.
    More Hi-Link LD2420 24GHz Radar Sensor Module
    In-Stock
    In stock: 8
    BNO080 9-Axis IMU Module Gyroscope, Accelerometer & Magnetometer Motion Sensor Robotics Bangladesh

    Reference: RBD-3853

    BNO080 9-Axis IMU Module Gyroscope, Accelerometer & Magnetometer Motion Sensor

    (0)
    The BNO080 9-Axis Motion Sensor Module is a high-performance IMU (Inertial Measurement Unit) that integrates a 3-axis gyroscope, 3-axis accelerometer, and 3-axis magnetometer into a single compact package. Designed for precise motion tracking, orientation sensing, and inertial navigation, it provides exceptional accuracy and stability for both dynamic and...
    BDT 2,650
    BDT 2,650 tax incl.
    BDT 2,650 tax excl.
    BDT 2,650 tax excl.
    BDT 2,650 tax incl.
    BDT 2,650 tax incl.
    BDT 0 Tax
    BDT 2,650 tax excl.
    BDT 2,650 tax excl.
    BDT 0 Tax
    BDT 2,650 tax incl.
    More BNO080 9-Axis IMU Module Gyroscope, Accelerometer & Magnetometer Motion Sensor
    In stock
    In stock: 7
    LDR 5 mm Light Depending Resistor Robotics Bangladesh LDR 5 mm Light Depending Resistor Robotics Bangladesh

    Reference: RBD-0995

    LDR 5 mm Light Depending Resistor

    (0)
    Diameter: 5mm No. of Pins: 2 Type of Mounting: PCB Through Hole Maximum Operating Temperature: +800°C (Approx.) Dark resistance:1-20 Mohm
    BDT 5
    BDT 5 tax incl.
    BDT 5 tax excl.
    BDT 5 tax excl.
    BDT 5 tax incl.
    BDT 5 tax incl.
    BDT 0 Tax
    BDT 5 tax excl.
    BDT 5 tax excl.
    BDT 0 Tax
    BDT 5 tax incl.
    More LDR 5 mm Light Depending Resistor
    In-Stock
    In stock: 1101
    A0221AU / A02YYUW Waterproof Ultrasonic Distance Sensor (3~450cm, UART, IP67) Robotics Bangladesh A0221AU / A02YYUW Waterproof Ultrasonic Distance Sensor (3~450cm, UART, IP67) Robotics Bangladesh

    Reference: RBD-2553

    A0221AU / A02YYUW Waterproof Ultrasonic Distance Sensor (3~450cm, UART, IP67)

    (0)
    Commercial-grade waterproof ultrasonic distance sensor (IP67) Wide measuring range: 3cm to 450cm with high accuracy UART communication interface for easy integration with microcontrollers Smaller blind zone and wider sensing angle than typical sensors Reliable operation even in smog, dust, or harsh environments Ideal for outdoor distance measurement and...
    BDT 2,250
    BDT 2,250 tax incl.
    BDT 2,250 tax excl.
    BDT 2,250 tax excl.
    BDT 2,250 tax incl.
    BDT 2,250 tax incl.
    BDT 0 Tax
    BDT 2,250 tax excl.
    BDT 2,250 tax excl.
    BDT 0 Tax
    BDT 2,250 tax incl.
    More A0221AU / A02YYUW Waterproof Ultrasonic Distance Sensor (3~450cm, UART, IP67)
    In-Stock
    In stock: 10
    DS18B20 Temperature Sensor Module Robotics Bangladesh

    Reference: RBD-2482

    DS18B20 Temperature Sensor Module

    (0)
    Digital temperature sensor module based on DS18B20 IC Measures from -55°C to +85°C with reliable accuracy 1-Wire communication interface saves microcontroller pins Built-in LED indicator for communication status Compatible with both 3.3V and 5V systems Easy integration with Arduino and other microcontrollers using available libraries
    BDT 150
    BDT 150 tax incl.
    BDT 150 tax excl.
    BDT 150 tax excl.
    BDT 150 tax incl.
    BDT 150 tax incl.
    BDT 0 Tax
    BDT 150 tax excl.
    BDT 150 tax excl.
    BDT 0 Tax
    BDT 150 tax incl.
    More DS18B20 Temperature Sensor Module
    In-Stock
    In stock: 36
    You might also like
    DC 3v-6v to 400kV 400000V Boost Step-up Power Module High-voltage Generator Robotics Bangladesh DC 3v-6v to 400kV 400000V Boost Step-up Power Module High-voltage Generator Robotics Bangladesh

    Reference: RBD-0562

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

    (0)
    Input Voltage: DC3.6V-6V Input Current: 2A-5A Output Voltage: DC 400KV (Please pay attention to safety when used) Input Line Length: about 100mm (red is positive) Output Line Length: about 160mm
    BDT 650
    BDT 650 tax incl.
    BDT 650 tax excl.
    BDT 650 tax excl.
    BDT 650 tax incl.
    BDT 650 tax incl.
    BDT 0 Tax
    BDT 650 tax excl.
    BDT 650 tax excl.
    BDT 0 Tax
    BDT 650 tax incl.
    More DC 3v-6v to 400kV 400000V Boost Step-up Power Module High-voltage Generator
    In-Stock
    In stock: 29
    INA125P Instrumentation Amplifier With Precision Voltage Reference Robotics Bangladesh INA125P Instrumentation Amplifier With Precision Voltage Reference Robotics Bangladesh

    Reference: RBD-0276

    INA125P Instrumentation Amplifier With Precision Voltage Reference

    (0)
    The INA125 is a low-power, high-accuracy instrumentation amplifier with a precision voltage reference. It provides complete bridge excitation and precision differential-input amplification on a single integrated circuit. A single external resistor sets any gain from 4 to 10,000. The INA125 is laser-trimmed for low offset voltage (250µV), low offset drift...
    BDT 1,150
    BDT 1,150 tax incl.
    BDT 1,150 tax excl.
    BDT 1,150 tax excl.
    BDT 1,150 tax incl.
    BDT 1,150 tax incl.
    BDT 0 Tax
    BDT 1,150 tax excl.
    BDT 1,150 tax excl.
    BDT 0 Tax
    BDT 1,150 tax incl.
    More INA125P Instrumentation Amplifier With Precision Voltage Reference
    In-Stock
    In stock: 4
    Voltage to Current Transmitter Signal Module Robotics Bangladesh Voltage to Current Transmitter Signal Module Robotics Bangladesh

    Reference: RBD-0559

    Voltage to Current Transmitter Signal Module

    (0)
    Power supply: DC 7-30 V Input Voltage: 0-10V Output current: 4-20mA  0-5V to 4-20mA Linear Conversion
    BDT 880
    BDT 880 tax incl.
    BDT 880 tax excl.
    BDT 880 tax excl.
    BDT 880 tax incl.
    BDT 880 tax incl.
    BDT 0 Tax
    BDT 880 tax excl.
    BDT 880 tax excl.
    BDT 0 Tax
    BDT 880 tax incl.
    More Voltage to Current Transmitter Signal Module
    In-Stock
    In stock: 82

    Follow us on Facebook