1H 1A Toroidal Choke Inductor 

Key Features

• High inductance (1 Henry) with 1A current rating

• Toroidal (donut) core design for efficient magnetic flux containment

• Low electromagnetic interference (EMI) – minimizes noise in circuits

• Compact size compared to equivalent solenoid chokes

• Excellent thermal stability for reliable performance

Technical Specifications

• Inductance: 1H ±10% tolerance

• Current Rating: 1A DC

• DC Resistance: Typically <50Ω

• Core Material: Powdered iron or ferrite (low hysteresis loss)

• Operating Temperature: -40°C to +85°C

• Frequency Range: 50Hz-20kHz (optimal performance)

• Insulation Resistance: >100MΩ at 500VDC

• Mounting: Through-hole (leads for PCB mounting)

 Common Applications

✅ Power supply filtering (AC/DC converters)
✅ Audio equipment (crossover networks, tube amps)
✅ EMI/RFI suppression in sensitive circuits
✅ DC-DC converter energy storage
✅ Industrial control systems (noise reduction)