Other
Electrical machines and apparatus, having individual functions, not specified or included elsewhere in this chapter; parts thereof: > Parts: > Other: > Other: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Subheadings
Products classified under HTS 8543.90.88
Raspberry Pi GPIO Expansion Board
A printed circuit board assembly designed to expand the GPIO pins on Raspberry Pi single-board computers, containing resistors, capacitors, and connectors for interfacing with sensors and modules. It falls under HTS 8543.90.88 as a part of electrical machines with individual functions not specified elsewhere in Chapter 85, specifically as an accessory PCB for computing platforms. This classification covers specialized electronic subassemblies without dedicated headings.
Arduino Sensor Shield V5.0
A breakout board for Arduino microcontrollers that provides easy connections for sensors, relays, and modules through standardized headers and voltage regulators. Classified under HTS 8543.90.88 as other parts of electrical apparatus with individual functions, this shield enables prototyping of electronic circuits. It doesn't meet criteria for more specific camera or transmission equipment subheadings.
ESP32 Development Breakout Board
A carrier PCB for the ESP32 WiFi module, including power regulation, USB interface, and pin headers for IoT prototyping. It qualifies for HTS 8543.90.88 as parts of other electrical machines not elsewhere specified, supporting wireless communication functions indirectly. The board itself is not a transmission apparatus under 8525.
Power over Ethernet (PoE) Splitter Module
An active electronic module that separates DC power and data from Ethernet cables for powering remote devices. Falls under HTS 8543.90.88 as other parts of electrical machines with individual functions, distinct from complete transmission apparatus. It enables PoE functionality without being a full network device.
USB to TTL Serial Converter Board
A compact PCB with FTDI chip, voltage translators, and DB9 connector for serial communication between computers and microcontrollers. Classified in HTS 8543.90.88 as parts of electrical apparatus for signal conversion functions not specified elsewhere. Provides interface conversion essential for embedded development.
Logic Level Shifter Module 4-Channel
Bi-directional level shifter board for interfacing 3.3V and 5V logic devices, using MOSFETs and pull-up resistors. HTS 8543.90.88 applies as other electrical machine parts for voltage level translation functions. Essential for mixed-voltage microcontroller projects.
INA219 Current Sensor Breakout Board
Precision current and voltage monitoring board using INA219 IC with I2C interface for power measurement applications. Falls under HTS 8543.90.88 as parts of electrical measuring apparatus not covered by heading 9030. Provides high-side sensing for battery and motor monitoring.
MPU-6050 6-Axis Gyroscope/Accelerometer Module
Breakout board with MPU-6050 IC providing 3-axis gyro and accelerometer data via I2C for motion sensing applications. Classified HTS 8543.90.88 as other parts of electrical apparatus for inertial measurement, not qualifying as complete instruments. Used in drones, robotics, and wearables.
MAX6675 Thermocouple Amplifier Module
Temperature measurement board with MAX6675 IC and screw terminal for K-type thermocouples, outputting digital SPI data. HTS 8543.90.88 covers this as other electrical machine parts for temperature signal conditioning. Converts analog thermocouple signals to digital for microcontroller reading.
Neopixel LED Driver Board WS2812B
Addressable RGB LED strip controller board using WS2812B chips with data-in/out for individually controllable pixels. Falls under HTS 8543.90.88 as parts of electrical apparatus for LED signal processing, not lighting fittings. Enables complex light patterns via single-wire protocol.
Real-Time Clock (RTC) DS3231 Module
Precision timekeeping module with DS3231 IC, EEPROM, crystal oscillator, and I2C interface for accurate date/time tracking. HTS 8543.90.88 classification as other electrical machine parts for timing functions, independent of watches. Includes backup battery holder for power loss protection.
SD Card Module for Microcontrollers
SPI interface breakout board for microSD cards with level shifters and voltage regulators for data logging applications. Classified under HTS 8543.90.88 as parts of electrical storage interface apparatus, per chapter notes excluding solid-state devices. Enables removable storage in embedded systems.
OLED Display Driver Board SSD1306
I2C/SPI monochrome OLED module with SSD1306 controller for 128x64 pixel displays in embedded GUIs. HTS 8543.90.88 as electrical machine parts for display driving, not complete receivers. Provides compact graphical interfaces for IoT devices.
DC-DC Buck Converter Module LM2596
Adjustable step-down voltage regulator board with LM2596 IC, inductor, and potentiometer for 3-35V input to 1.5-35V output. Falls under HTS 8543.90.88 as parts of electrical power conversion apparatus, not complete power supplies. Used in embedded power management.
MOSFET Driver Module IRF520
High-current MOSFET switching board with IRF520 N-channel FET, optocoupler isolation, and screw terminals for motor/LED control. HTS 8543.90.88 classification for electrical machine parts providing power switching functions. Handles loads up to 9.2A at 100V.