Site Information

  • Image 1

Cal Test Electronics CT4079-NA 50 MHz Differential Probe


Product Description

  • Meets IEC 61010-031 safety standard
  • Up to ±1.5 kV / ±15 kV differential
  • 50 MHz bandwidth (-3 dB)
  • Compatible with most oscilloscopes
  • Excellent CMRR
  • Powered by included 9 VDC adapter
  • Power and over-range indicators

Applications include:

  • Precise power semiconductor device measurements
  • Switching power supply design
  • Measurement of power converters
  • Precise measurement of motor drives

Use the CT4079 50-MHz differential probe to make safe and accurate floating measurements with an oscilloscope. The CT4079 differential probe allows conventional earth-grounded oscilloscopes to be used for floating signal measurements of up to ±15 kV for both differential and common mode voltage.

Model CT4079 features 200x/2000x attenuation settings, 50 MHz bandwidth and ±15 kV maximum differential — all in a compact, safety yellow housing. Compatible with oscilloscopes from all major manufacturers, the probe is ideal where high sensitivity and dynamic range is needed.

Type Active Differential
Bandwidth 50 MHz
Attenuation(s) 200x/2000x
Accuracy ±2%
Rise Time 7 ns
Input Impedance 40 MΩ/3 pF
Input Voltage:  
Differential Voltage (DC+peak AC) ±1.5 V/±15 kV
Common-Mode Voltage (DC+peak AC) ±15 kV or 10 kVrms
Absolute Max. Voltage (DC+peak AC) ±15 kV or 10 kVrms
Output Voltage:  
Swing ±8 V (±4 V into 50 Ω load)
Offset (Typ.) ≤5 mVDC
Noise (Typ.) ≤1 mVrms
Source Impedance (Typ.) 50 Ω
CMRR (Typ.)

-80 dB@60 Hz; -60 dB@100Hz;-50 dB@1 MHz

Operating Temperature/Humidity -10° to +40° C / 25% to 85% RH
Storage Temperature/Humidity -30° to +70° C / 25% to 85% RH
Cable Length 100 cm (separate lead)
Input Leads Length 60 cm  (separate leads)
Weight 350 g
Dimensions 220 mm x 85 mm x 30 mm
RoHS 2 Compliant
Warranty 1-year

Kit includes:

  • Differential probe
  • (2) Pincer clips, black & red
  • (2) Alligator clips, black & red
  • (2) HV Banana plug leads, black & red
  • Insulated BNC cable
  • Power adapter
  • User's manual

The probe is marketed under the time-honored Elditest brand name in both North America and European Union.

Data Sheet (1.2M)
User's Manual (1.9M)

Product Reviews

Write Review

This product hasn't received any reviews yet. Be the first to review this product!

Find Similar Products by Category