Overview
The NTE5572 SCR thyristor is a silicon-controlled rectifier rated for 600V repetitive peak voltage with an 80A average current rating. Housed in a compact TO-94 package with four pins, this single SCR module provides the switching and power control needed in industrial power management, AC power control, and switching applications.
Key Features
- 600V Peak Repetitive Off-State Voltage (Vdrm)
- 80A Average Forward Current with 125A RMS capability
- 1.9kA Peak Non-Repetitive Surge Current (50Hz)
- 120mA Maximum Gate Trigger Current
- 2.5V Maximum Gate Trigger Voltage
- TO-94 Package — four-pin industry standard form factor
- Operating temperature up to 125°C
Technical Specifications
- Device Type: Single SCR Module
- Peak Repetitive Off-State Voltage (Vdrm): 600V
- Average Forward Current (It av): 80A
- RMS Forward Current (IT(rms)): 125A
- Peak Non-Rep Surge Current (Itsm 50Hz): 1.9kA
- Maximum Gate Trigger Current (Igt): 120mA
- Maximum Holding Current (Ih): 150mA
- Maximum Gate Trigger Voltage (Vgt): 2.5V
- Maximum Operating Temperature: 125°C
- Package Type: TO-94 (4-pin)
- RoHS Compliant: Yes
Typical Applications
The NTE5572 is commonly used in:
- AC power switching and motor control circuits
- Industrial power management and phase control
- Solid-state relay and switch applications
- Power supply and converter circuits requiring gated switching control
- Temperature and voltage regulation systems
Compatibility & Replacements
Compatible With
- General-purpose AC and DC power switching applications
- Gate-trigger control circuits rated for 2.5V logic signals
- PCB designs using standard TO-94 footprints and pinouts
- Power management systems requiring 600V blocking voltage
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. NTE5572 replaces certain legacy SCR thyristor models in equivalent voltage and current classes, but cross-reference the original part number and gate trigger specifications to confirm drop-in compatibility.
Works With
- Industrial control panels and power electronics assemblies
- Gate drive circuits using standard TTL/CMOS control signals
- Thermal management systems with heatsink mounting
- Standard PCB assembly and soldering processes
