Proterial HFTR Isolation Transformers

Proterial HFTR Isolation Transformers are designed for gate drive circuits and feature a ferrite core. The small, high-efficiency isolation transformers offer low core loss and high saturation flux density. Turns ratio options are 1:2 for HFTR3DA and HFTR2DA-B1, 1:3.5 for HFTR4BA and HFTR3BB, and 1:2.3:0.43 for HFTR4CA. Additional features include 2.5kV_AC, 3.75kV_AC, or 5kV_AC withstand voltage and a creepage distance ranging from 1.5mm to 12mm. Proterial HFTR Isolation Transformers comply with AEC-Q200 standards.

Features

Small, high-efficiency isolation transformers for gate drive circuits
Isolation structure made of ferrite core
Low core loss and high saturation flux density

Unique isolation structure realizes both high withstand voltage and size reduction (HFTR4CA)
Complies with AEC-Q200

Applications

Inverter circuits for motor control
Inverters for AC power supplies for automotive

Specifications

HFTR3BB
- Class B equivalent (+130°C) / UL +105°C (Class A)
- 1:3.5 turns ratio
- 3.75kV_AC withstand voltage
- 3mm creepage distance (basic insulation)
HFTR4BA
- Class B equivalent (+130°C) / UL +105°C (Class A)
- 1:3.5 turns ratio
- 5kV_AC withstand voltage
- 8mm creepage distance
HFTR4CA
- Class B equivalent (+130°C) / UL +105°C (Class A)
- 1:2.3:0.43 turns ratio
- 5kV_AC withstand voltage
- 12mm creepage distance (reinforced insulation)

HFTR3DA
- Class B equivalent (+130°C) / UL +105°C (Class A)
- 1:2 turns ratio
- 3.75kV_AC withstand voltage
- 3mm creepage distance (basic insulation)
HFTR2DA-B1
- Class E equivalent (+130°C) / UL +105°C
- 1:2 turns ratio
- 2.5kV_AC withstand voltage (Class A)
- 3mm or 1.5mm creepage distance (basic insulation)