Tektronix TCPA400 Current Probe Amplifier

The Tektronix TCPA400 rental Vietnam service from Lost in HCM gives engineering teams in Vietnam short-term access to this current probe, with sale and service options on request.

Tektronix TCPA400 rental Vietnam overview

The Tektronix TCPA400 rental Vietnam lets an oscilloscope show current as a clear waveform. So engineers can see inrush, ripple, switching edges, and fault pulses on screen. In addition, they can view current and voltage together on one timebase and link cause to effect.

This family covers Tektronix clamp probes, Rogowski loops, IsoVu isolated probes, and wideband current shunts. First, AC-only probes and current transformers capture fast pulses. Next, AC/DC probes add DC and slow changes. Finally, shunts pair with isolated probes for very fast switching work.

Tektronix TCPA400 rental Vietnam: about the TCPA400

Tektronix TCPA400 rental Vietnam: tektronix TCPA400 overview

The Tektronix TCPA400 is a current probe amplifier used as part of a compatible AC/DC current measurement system. Its performance and current range depend on the selected probe.

Tektronix TCPA400 rental Vietnam: product images

Tektronix TCPA400 rental Vietnam: specifications

Manufacturer	Tektronix
Model	TCPA400
Product type	Current probe amplifier
Frequency range / bandwidth	DC to 50 MHz amplifier capability
Current capability	Amplifier; current range depends on probe
Connection / system requirement	For TCP404XL
Compatible probe	TCP404XL
Supported system bandwidth	DC to 2 MHz with TCP404XL
Output connection	To a compatible oscilloscope interface or correctly terminated input
Probe included	No; specify separately

Confirm frequency derating, pulse limits, conductor voltage and required accessories in the current manufacturer manual before use.

Tektronix TCPA400 rental Vietnam: measurement applications

Use the amplifier with the specified Tektronix probe to provide probe drive, signal conditioning and current scaling. The probe, amplifier, oscilloscope connection and termination form one measurement system; quote and verify them together. Teams in Vietnam often choose Tektronix TCPA400 rental for this reason.

Connection schematic

Single DUT conductor → compatible current probe
Current probe → TCPA400 amplifier
TCPA400 output → compatible oscilloscope input

Illustrative connection diagram, not an internal service circuit. De-energize the circuit before installation where required. Follow the stated voltage category, conductor insulation and current limits. Clamp around one conductor; enclosing both supply and return may cancel their magnetic fields.

Setup and compatibility

Confirm the exact oscilloscope input, termination, adapter and amplifier requirements. Degauss and zero active AC/DC systems when the manual requires it. A peak or pulse rating is not a continuous-current rating.

Request a quotation in Vietnam

Request a quotation for Tektronix TCPA400. Include the oscilloscope model, expected current, waveform frequency, conductor size and required accessories. Price, condition and local availability are confirmed individually.

Manufacturer references

Official Tektronix datasheet. Reviewed 19 October 2026.

How the current probe works

A Rogowski probe uses a flexible air-core loop that wraps around large or awkward conductors. Because it has no iron core, it does not saturate on high currents. However, it measures AC only, so it suits drives, inverters, and power distribution checks. This applies to every Tektronix TCPA400 rental we arrange in Vietnam.

A current shunt takes another path, because the current flows through a small known resistor. Then an isolated probe, such as a TICP IsoVu model, reads the voltage across it. So engineers can measure fast switching current while the probe stays isolated from high common-mode voltage.

What to look for in a current probe

Current probes differ in bandwidth, current range, and how they connect to the scope. So the right choice depends on your signal, conductor size, and safety needs. The points below help you compare models for your circuits and test plan.

• AC only or AC and DC. AC-only probes and Rogowski loops skip DC, so they suit pulses and ripple. However, AC/DC models such as the TCP0030A and TCP303 also show DC offset, inrush, and slow load changes. So, plan it early when you book a Tektronix TCPA400 rental in Vietnam.
• Bandwidth and rise time. Bandwidth sets the fastest current edge the probe can follow. For example, the CT6 reaches 2 GHz, and the TICP100 reaches 1 GHz. Meanwhile, the A621 stops at 50 kHz, which suits mains work.
• Current range and peak limits. Check both RMS or continuous current and the peak pulse limit. For instance, the TCP404XL handles 500 A DC continuous, while the CT6 handles 120 mA RMS. Also, respect amp-second limits on long pulses.
• Scope interface and power. TekVPI probes such as the TCP0020 and TCP0150 draw power from a compatible scope. However, the TCP303 needs a TCPA300 amplifier, and the CT probes need a 50 Ω input. So confirm the full system first.
• Jaw size and loop fit. The probe must close around your conductor without strain. For example, the A621 takes conductors up to 54 mm, while the CT6 takes a 0.8 mm wire. Flexible Rogowski loops also wrap around bus bars and thick cables. Our Tektronix TCPA400 rental units in Vietnam ship ready for this kind of work.
• Isolation and shunt choice. IsoVu probes in the TICP family read current across a TICS shunt with galvanic isolation. Therefore, they suit high-side switching nodes. Shunt values from 5 mΩ to 5 Ω then set the current range and circuit loading.

Typical applications

Each application uses the probe to turn current into a waveform the team can measure. Then engineers compare that waveform with the design limits. Here is how labs, factories, and field teams in Vietnam use these probes and shunts every day.

• Power supply and inrush tests. Engineers capture inrush, ripple, and load steps on switch-mode supplies. So AC/DC probes like the TCP0030A show both the DC level and fast transients. As a result, teams confirm fuse and part ratings. Rental of the Tektronix TCPA400 is available across Vietnam.
• Motor drive and inverter checks. Drives and inverters switch high currents in each phase. Therefore, engineers use TCP303, TCP404XL, or Rogowski probes on the phase leads. Then they compare current with gate signals on the same scope.
• GaN and SiC switching analysis. Wide-bandgap devices switch very fast at high voltage. So teams pair TICP IsoVu probes with TICS shunts in the power loop. That setup measures switching current while the probe stays isolated.
• Battery and EV current profiles. Battery packs and chargers draw large DC currents that change with load. For example, high-current AC/DC probes record charge and discharge profiles. In addition, the data supports efficiency and thermal studies.
• Pulse and noise troubleshooting. Fast current pulses often cause noise and false triggers in a system. So compact current transformers such as the CT1, CT2, and CT6 capture short spikes on thin wires. Engineers then trace the noise to its source. Teams in Vietnam often choose Tektronix TCPA400 rental for this reason.
• Mains and power quality work. Facility teams check load current on mains wiring and panels. Therefore, large clamps like the A621 and A622 and flexible TRCP loops suit this job. Always follow the CAT rating on each probe.

Industries that use the Tektronix TCPA400 rental Vietnam

Any product that converts or switches power needs current checks at some stage. That is why probes and shunts appear in labs, factories, and field teams. Here is how each sector in Vietnam uses them in design and production work.

• Power electronics. Makers of supplies, chargers, and inverters in Binh Duong and Dong Nai validate switching current every day. So they keep AC/DC probes on design benches. They also rent isolated probes and shunts for new GaN designs.
• Automotive and EV. EV, e-motorbike, and component plants in Vietnam test drives, chargers, and battery systems. Therefore, they need high-current AC/DC and Rogowski probes. Portable setups also help when engineers work at the vehicle. This applies to every Tektronix TCPA400 rental we arrange in Vietnam.
• Electronics manufacturing services. EMS plants in Bac Ninh, Bac Giang, and Hai Phong measure board current during debug and failure analysis. As a result, compact AC/DC probes see daily use. Teams often rent extra units during production ramps.
• Renewable energy. Solar inverter and energy storage projects need current data on high-power converters. For example, flexible Rogowski loops wrap around thick cables and bus bars. Meanwhile, AC/DC probes check the DC link.
• Industrial automation. Factories run motors, drives, and servo systems that sometimes trip or overheat. So maintenance engineers use clamp probes to read phase current at the machine. This helps them find overload and imbalance faults.
• Education and research. Universities and research labs in Vietnam teach power electronics with hands-on tests. Therefore, they need safe, reliable current probes for many benches. Rental helps them equip a lab for one course or project. So, plan it early when you book a Tektronix TCPA400 rental in Vietnam.

Tektronix TCPA400 rental Vietnam compared with other brands

Several makers build current probes for their own oscilloscopes and for general bench use. Each takes a different path on bandwidth, current range, and interface. The rows below show where the Tektronix TCPA400 rental Vietnam sits among other common choices on the market.

Start with the current range and bandwidth your circuit really needs. Next, check DC needs, jaw size, isolation, and how the probe connects to your scope. Finally, confirm current specs with each maker, because product lines change over time. Specifications change, so confirm current data with each maker before you decide.

Rent or buy?

Rent a current probe for a design validation, a failure analysis, or a short power study. Rental also gives access to high-current probes, IsoVu systems, and amplifiers for one project. Then you return them, so capital stays free for other test needs.

Selection tips

• Choose AC/DC when you need DC levels, inrush, or slow changes. Otherwise, an AC-only probe or a Rogowski loop may cover pulses and ripple well.
• Match bandwidth to your fastest current edge, not just the switching frequency. So fast GaN or SiC edges may need an isolated probe and shunt instead of a clamp. Our Tektronix TCPA400 rental units in Vietnam ship ready for this kind of work.
• Check peak, RMS, and continuous current limits together. Also review the amp-second limit for long pulses, because going past it can saturate the core.
• Confirm how the probe connects, such as TekVPI, BNC, or a separate amplifier. Then make sure your scope supports that interface and the needed input impedance.
• Measure the conductor or bus bar before you choose a jaw or loop size. For instance, thick cables may need a large clamp or a flexible Rogowski loop.
• For a shunt setup, pick a resistance that gives a usable voltage at your current. However, a higher value adds more loading and heat to the circuit.

Handling and care

• Close probe jaws gently and keep the core faces clean, because dirt adds error. Also store each probe, amplifier, and shunt in its case between jobs. Rental of the Tektronix TCPA400 is available across Vietnam.
• Respect the voltage and CAT rating on every probe, since bare conductors can carry hazardous voltage. In addition, wear an ESD strap when you handle IsoVu tips and shunts.
• Let AC/DC probes warm up for the time the maker states. Next, degauss and zero the probe before precise DC readings, and repeat after any overload.
• Follow the calibration interval each maker states, which is often one year. Rental units ship with a valid calibration certificate, and we can arrange service through the maker or an authorized partner.
• Ship probes in padded cases with cables coiled loosely and jaws closed. In addition, keep them dry during Vietnam's humid wet season, because moisture harms sensors.

Frequently asked questions

Request a quote

Tell us the model, options, dates and delivery site, and we will reply with a quote. You can request a quote online or call 0902 327 669. Teams in Vietnam often choose Tektronix TCPA400 rental for this reason.