[USB-046] USB to Serial/MPSS Converter
Upcoming Product
5KVC high-voltage isolation
Independent control of Serial / MPSSE
Permalink of this page:
Overview
USB-046 is a USB to Serial/MPSS converter that enables independent control of two serial signals via a USB connection. The USB and serial signal interfaces are electrically isolated from each other.
The onboard FTDI FT2232H chip can be configured to use Channel A as a Serial (UART) interface and Channel B as an MPSSE (Multi-Protocol Synchronous Serial Engine) interface. The MPSSE enables communication by emulating serial protocols such as I2C, SPI, and JTAG. The converter provides an isolated power supply, selectable between 3.3 V and 5 V via a switch.
* Second and subsequent images are CG models
Features
- Control via virtual COM port over USB
- Independent control of Serial / MPSSE
- 5000 VDC bus isolation
The USB and serial signal interfaces are electrically isolated from each other. - Isolated 3.3 V / 5 V power supply, selectable by switch
- No external power supply is required
USB-046 is powered through a USB port (Bus-powered) - ESD and surge protection
- Housing material: Plastic
- DIN rail, magnet, and screw mountable (Attachment is required)
- Includes a USB cable (1.8m)
- Wiring harness with connector housing (approx. 200 mm)
- Free from the 10 RoHS-restricted substances.
- MADE IN JAPAN
![]() |
Reference DataUSB2.0 compliance test. Eye pattern of upstream tests.![]() |
Specification
| Item | Description | Remarks |
|---|---|---|
| Model | USB-046 | |
| Input Power | 5VDC Supplied through a USB port(Bus-powered) |
No external power supply required |
| Current Consumption | Less than 700 mA | |
| HOST Interface | USB 2.0 compliant (Support Hi Speed) | USB 1.1 compatible ESD protection |
| Processor | FT2232H | FTDI |
| Isolation Method | Bus Isolation | |
| Isolation Protection | 5000 VDC | Designed value |
| User Interface | 10-pin Male MIL Connector FAP-1001-2202-0BF |
Yamaichi Electronics |
| Power Supply for Secondary Side |
3.3 V or 5.0 VDC (±10% max.) | Voltage selectable via switch |
| USB Driver | Virtual COM port driver | Serial Side |
| Support OS | Windows 11/10 | |
| LED | PWR: USB bus power RX: Receive data (Serial) TX: Transmit data (Serial) |
|
| USB Connector | Standard Type B Female | |
| Operating Ambient Temperature | -20°C to 60°C (-4°F to 140°F) | No condensation permitted |
| Operating Ambient Humidity | 10% to 85%RH | No condensation permitted |
| Storage Ambient Temperature | -20°C to 60°C (-4°F to 140°F) | No condensation permitted |
| Storage Ambient Humidity | 10% to 85%RH | No condensation permitted |
| Weight | Approx. 50 g | Only main body |
| Dimensions | 67 x 67 x 28 mm (2.638" x 2.638" x 1.102") |
Without projections |
* Power saving function (suspend, standby, sleep and others) is not supported
10-pin Male MIL Connector pinouts
| Pin No | Name | Direction |
|---|---|---|
| 1 | GND | - |
| 2 | CTS | IN |
| 3 | VCC | - |
| 4 | TXD | OUT |
| 5 | RXD | IN |
| 6 | RTS | OUT |
| 7 | TCK/SK | OUT |
| 8 | TDI/DO | OUT |
| 9 | TMS/CS | OUT |
| 10 | TDO/DI | IN |
Package Contents
- USB-046
- USB cable 1.8m
- Wiring harness with connector housing (approx. 200 mm)
Documentation
Price and Optional Accessories
| Description | MODEL | Image | List Price (JPY) | Stock Status |
|---|---|---|---|---|
| USB to Serial/MPSS Converter |
USB-046 | ![]() |
||
| Attachment with clamping screw |
PEN-003 | ![]() |
||
| Attachment for 35mm DIN rail |
PEN-003-DIN | ![]() |
||
| Attachment with neodymium magnet |
PEN-003-MG | ![]() |
Ordering



User's manual, Outline Drawing, etc





