5STP38Q4200 by ABB | Industrial Phase-Control Semiconductor

ABB 5STP38Q4200 Phase Control Thyristor – Product Description

Overview

The ABB 5STP38Q4200 is a high-performance phase control thyristor designed for advanced industrial power conversion systems. It offers stable performance under extreme electrical and thermal stress, making it suitable for heavy-duty converter platforms. Moreover, its free-floating silicon design enhances long-term reliability by reducing internal mechanical strain. Engineers value this device because it provides consistent conduction efficiency while supporting demanding operating cycles.

Technical Specifications

Attribute | Specification
Model Number | 5STP38Q4200
Manufacturer | ABB
Product Type | Phase Control Thyristor (PCT)
Repetitive Peak Voltage (VDRM/VRRM) | 4200 V
Average On-State Current (IT(AV)) | 4420 A
RMS Current (IT(RMS)) | 6950 A
Surge Current (ITSM) | 64.5 kA
On-State Voltage (VT0) | 0.973 V
Thermal Resistance | 0.126 mΩ
Leakage Current | 400 mA at 125 °C
Critical dv/dt | 2000 V/µs
Technology | Free-floating silicon, interdigitated amplifying gate
Product Dimensions | 151 × 151 × 26 mm
Net Weight | 2.1 kg
Package Volume | 0.593 dm³
Product Type Category | Control System Accessory
Country of Origin | Switzerland

FAQ

Q1: What is the primary function of the ABB 5STP38Q4200?
It regulates high-power electrical energy in converters that require precise phase control.

Q2: Can this thyristor operate under heavy surge conditions?
Yes, it supports a surge current of up to 64.5 kA, ensuring strong overload capability.

Q3: What technology improves its long-term reliability?
Free-floating silicon construction reduces mechanical stress and stabilizes thermal behavior.

Q4: Which industries commonly use this device?
It is widely used in HVDC systems, traction equipment, industrial rectifiers, and large motor drives.

Q5: Does the unit require special mounting equipment?
It fits standard high-power semiconductor housings used in industrial converter assemblies.