Description
The part number combination YXU172E / YT204001-JJ specifies an industrial control and printed circuit board module manufactured by ABB (historically associated with ABB / ASEA Brown Boveri automation and control systems).
Technical Specifications
| Feature | Specification |
| Manufacturer | ABB (Asea Brown Boveri) |
| Product Type | Industrial Control / Printed Circuit Board (PC Board) Module |
| Module Series | YXU-172E (Type number: YT204001-JJ) |
| Circuit Type | Pulse Transformer / Interface PCB |
| Nominal Voltage | 24 VDC (Control / Signal level) |
| Product Category | PLC, DCS, Control System, and Data Transmission Hardware |
Product Overview
The YXU172E (YT204001-JJ) is a specialized sub-assembly printed circuit board used within legacy ABB industrial automation, power distribution, or drive control architectures. It functions primarily as a pulse transformer or signal conditioning board designed to handle reliable internal data transmission, galvanic isolation, or trigger pulse management safely across system racks.
Key Features:
-
Precision Isolation: Utilizes onboard pulse transformers to maintain electrical isolation between control logic circuits and high-power stages.
-
Rugged Industrial Build: Built to withstand standard industrial environments, temperature fluctuations, and continuous operation typical of heavy automation setups.
-
System Compatibility: Designed for seamless integration into designated ABB control racks and modular hardware platforms.
YXU172E
YXU172E YT204001-JJ
Product Overview
YXU172E (Drawing No. YT204001-JJ) is an ABB pulse transform unit dedicated for industrial drive and power control systems. It receives low-level control pulse signals, performs isolation and signal conversion, and delivers stabilized driving pulses to power semiconductor devices.
It is widely deployed inside ABB drive cabinets and power generation control equipment, serving as the critical interface between main control boards and power switching components.
Cross reference former part code: YT204001-AP.
Core Functional Features
✅ High-isolation pulse signal conversion, effectively blocking common-mode interference between control circuits and power circuits
✅ Built-in EMI filtering circuit to suppress high-frequency noise inside control cabinets
✅ Integrated multi-level protection: overvoltage, overcurrent and short-circuit protection
✅ Precise pulse shaping with fast response time, guarantees accurate timing of power device triggering
✅ Optimized thermal layout for continuous long-duration operation
✅ Standard plug-in printed circuit board structure, convenient for maintenance and on-site replacement
✅ Gold-plated contact pins for stable electrical connection and anti-oxidation performance
✅ Optional PCB conformal coating for humid, dusty and temperature-variable industrial environments
✅ Fully compatible with matched ABB drive and power control system architectures
