Coilcraft CST2020 Series Current Sense Transformers

The CST2020 Series current sense transformers sense current up to 40 Amps over a frequency range of 400 Hz to 1 MHz & are qualified to AEC-Q200 Grade 1.

• AEC-Q200 Grade 1 qualified (–40°C to +125°C ambient)
• Sensed current up to 40 A
• Frequency range 400 Hz – to 1 MHz
• Very low primary DC resistance
• Meets Reinforced Insulation per UL 60950-1
• 4000 Vrms, one minute isolation (hipot) between windings

Core material Ferrite

Terminations Tin-silver-copper over tin over copper over steel (pins 1– 3); Tin-silver-copper over tin over nickel over copper (pins 4 – 5)

Weight 7 – 8.5 g

Ambient temperature –40°C to +125°C

Maximum part temperature +165°C (ambient + temp rise)

Storage temperature Component: –40°C to +165°C.

Tray packaging: –40°C to +80°C

Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /

85% relative humidity)

Failures in Time (FIT) / Mean Time Between Failures (MTBF)

38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Packaging 100 per tray

PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash.

Courtesy of Coilcraft