Tektronix TCP303 AC/DC current probe. The TCPA300 amplifier, when used with TCP312A, TCP305A, or TCP303 probes, provides a wide range of current measurement capability and spans the gap between low-level milliamp measurements to very high current levels. These three probes provide current measurement capabilities of 30 A, 50 A, and 150 A DC continuous. For even higher current levels, the TCPA400 amplifier with the TCP404XL current probe measures 500 A DC continuous and 750 A DC continuous, derated with duty cycle. Higher-frequency performance is available with the TCP312A w/TCPA300 providing ≥100 MHz bandwidth and a maximum current of 30 A DC.

AC/DC measurement capabilities
DC - 100 MHz, Current Probe Amplifier (TCPA300) uses:
DC - 100 MHz, 30 A DC (TCP312A)
DC - 50 MHz, 50 A DC (TCP305A)
DC - 15 MHz, 150 A DC (TCP303)
DC - 50 MHz, Current Probe Amplifier (TCPA400) Uses:
DC - 2 MHz, 750 A DC 1 (TCP404XL) (500 A DC Continuous)

Applications
Development and analysis solutions for designers, installers, and service personnel in telecom, data comm, computer, and semiconductor power electronics environments for:
● Power supplies (switching and linear)
● Semiconductor devices (SCRs, IGBTs, MOSFETs, CMOS, BJTs)
● Power inverters/converters
● Electronic ballasts
● Industrial/consumer electronics
● Mobile communications (phone, satellite, relay stations)
● Motor drives
● Transportation systems (electronic vehicles, electric trains, locomotives, avionics)

Tektronix TCP303 AC/DC current probe