The TCP300 and TCP400 Series AC/DC current measurement family is a highly advanced current measurement system for today's current measurement needs. When connected to Tektronix oscilloscopes with TEKPROBE Level II, TekConnect (w/ TCA-BNC), or TekVPI (w/ TPA-BNC) interfaces, current measurements and calculations are simple and easy.
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.
Key Performance Specifications:
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 * (TCP404XL) (500 A DC Continuous)
*Derated with duty cycle
Key Features:
- 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 device under test loading
- Split-core construction allows easy circuit connection
- Status indicators provide visual operating status and notification of potential error conditions - degauss, probe open, overload, not terminated into 50 Ω, noncompatible probe type
- Low DC drift and noise allows improved low-level current measurements
- 3rd party safety certification
**Requires a TDS TEKSCOPE oscilloscope or a TekConnect oscilloscope with TCA-BNC adapter
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)
| Specifications |
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| Model Overview |
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| Model | TCP312A w/ TCPA300 | TCP305A w/ TCPA300 | TCP303 w/ TCPA300 | TCP404XL w/ TCPA400 |
| Bandwidth | DC – 100 MHz | DC – 50 MHz | DC – 15 MHz | DC – 2 MHz |
| Rise Time | ≤3.5 ns | ≤7 ns | ≤23 ns | ≤175 ns |
| DC Accuracy | ±3% of reading | ±3% of reading | ±3% of reading | ±3% of reading |
| Accuracy, Typical | DC: ±1% of reading DC to 60 Hz, ≤5 A: ±1%
60 Hz – 5 kHz, ≤5 A: ±1.5%
DC – 5 kHz, >5 A: ±1.5%
| DC: ±1% of reading DC to 60 Hz, ≤5 A: ±1%
60 Hz – 5 kHz, ≤5 A: ±1.5%
DC – 5 kHz, >5 A: ±1.5%
| DC: ±1% of reading | DC: ±1% of reading |
Lowest Measurable Current (at ±3% Accuracy at DC)
Scope set to 1 mV/div and 20 MHz BW limited
| 1 mA | 5 mA | 5 mA | 1 A |
| Maximum Amp-Second product, typical (based on amplifier range setting) | 50 A*μS – 1 A/V
500 A*μS – 10 A/V
| 500 A*μS – 5 A/V
NA – 10 A/V
| 3,000 A*μS – 5 A/V
15,000 A*μS – 50 A/V
| NA – 1 A/mV |
| Maximum Wire Voltage |
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| Bare | 150 V CAT II | 150 V CAT II | 600 V CAT I & II | 600 V CAT I & II |
| Insulated | 300 V CAT II | 300 V CAT II | 300 V CAT III | 300 V CAT III |
| AC-coupling low-Frequency Bandwidth, typical (Low pass – 3 dB point) | <7 Hz | <7 Hz | <7 Hz | <7 Hz |
| Displayed RMS Noise, typical (at 20 MHz Bandwidth Limit) | ≤250 μARMS | ≤1.25 mA RMS | ≤2.5 mARMS | ≤250 mARMS |
| Signal Delay (to output BNC) | 17 ns | 19 ns | 40 ns | 80 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
| 0.02 Ω at 1 MHz 0.1 Ω at 10 MHz
0.35 Ω at 50 MHz
| 0.01 Ω at 1 MHz
0.025 Ω at 5 MHz
0.1 Ω at 15 MHz
| 0.1 m Ω at 10 kHz
0.6 m Ω at 100 kHz
8 m Ω at 1 MHz
16 m Ω at 2 MHz
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