Tektronix TCP312A
Probe, AC/DC current, DC to 100 MHz, 30 A DC

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Product Overview

TEKTRONIX TCP312A PROBE

The Tektronix TCP312A Current Probe is a split-core probe that uses both transformer and Hall effect technology. When connected to Tektronix oscilloscopes with TEKPROBE Level II, TekConnect (w/ TCA-BNC), or TekVPI (w/ TPA-BNC) interfaces, the Tektronix TCP312A probe makes current measurements and calculations simple and easy.

Features and Specifications of the TCP31A Current Probe include:

• Features:
  • AC/DC measurement capabilities
  • Automatic Scaling and Units - Oscilloscope on-screen readout of magnitude and amps reduces measurement errors with no more hand calculations
  • AC/DC input coupling
  • Low insertion impedance reduces DUT loading
  • Split-core design allows easy circuit connection
  • Status indicators provide visual operating status and notification of potential error conditions including:
    • Degauss, probe open, overload, not terminated into 50 Ω, noncompatible probe type
  • Low DC drift and noise allows improved low-level current measurements
  • Applications:
  • Development and analysis solutions for designers, installers, and service personnel in telecomm, 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, electronic trains, locomotives, avionics)
• Specifications of the TCP312A Probe w/ TCPA300 Amplifier:
  • Bandwidth:  DC - 100 MHz
  • Rise Time:  ≤3.5 ns
  • DC Accuracy:  ±3% of reading
  • DC Accuracy, typical:  ±1% of reading
  • Lowest measureable current (at ±3% accuracy at DC) and Scope set to 1 mV/div and 20 MHz BW limited:  1 mA
  • Maximum Amp-Second product, typical (Based on amplifier range setting:
  • 50 AμS - 1 A/V
  • 500 AμS - 10 A/V
  • Maximum wire voltage, bare insulated: 
  • 150 V CAT ll
  • 300 V CAT ll
  • AC-coupling low-frequency and Bandwidth, typical (Low pass - 3 dB point:  
  • Displayed RMS noise, typical (at 20 MHz bandwith limit): ≤250 μA_RMS
  • Signal delay (to output BNC):  17 ns
  • Insertion Impedance:
  • • 0.11 Ω at 1 MHz
    • 0.12 Ω at 10 MHz
    • 0.35 Ω at 50 MHz
    • 0.7 Ω at 100 MHz
  • Maximum current ratings:
    • High-current sensitivity:
      • Range:  10 A/V
      • DC (continuous):  30 A
      • RMS (sinusoidal):  21.2 A
    • Peak:  50 A
    • Low-current sensitivity:
    • Range:  1 A/V
    • DC (continuous):  5 A
    • RMS (sinusoidal):  3.5 A
    • Peak:  50 A