Rohde & Schwarz NGU401 Source Measure Unit
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Mã SKU: CAT-RS-NGU401SKU: CAT-RS-NGU401
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Categories: Power supplies, Rohde & Schwarz.Categories: Power supplies, Rohde & Schwarz.
Liên hệ
NGU401 by Rohde & Schwarz: 1 channel, 60 W, -20 V to +20 V, up to ±8 A. View specifications and request a quote in Vietnam.
The Rohde & Schwarz NGU401 rental Vietnam service from Lost in HCM gives engineering teams in Vietnam short-term access to this DC power supply, with sale and service options on request.

Rohde & Schwarz NGU401 rental Vietnam overview
Teams that request Rohde & Schwarz NGU401 rental Vietnam need stable power for a board, module, or battery. This family spans compact bench units, precision supplies, and multi-kilowatt system sources. Because each model has its own limits, you start with voltage, current, and channel count. Then you match the model to the job.
The range includes Rigol, Rohde & Schwarz, and Keysight models. For example, the Rigol DP832 offers three outputs and 195 W in total. Meanwhile, each channel of an R&S NGP800 supply delivers up to 200 W. At the top end, Keysight RP5900 regenerative supplies reach up to 800 V.
Rohde & Schwarz NGU401 rental Vietnam: about the NGU401
Rohde & Schwarz NGU401 is a one-channel, four-quadrant source measure unit rated for 1 channel, 60 W, -20 V to +20 V, up to ±8 A. It combines accurate sourcing, sinking and measurement for semiconductor, battery, sensor and low-power device testing.


Rohde & Schwarz NGU401 rental Vietnam: NGU401 specifications at a glance
| Model | NGU401 |
|---|---|
| Manufacturer | Rohde & Schwarz |
| Manufacturer order number | 3639.3763.03 |
| Instrument type | Source Measure Unit |
| Channels | 1 |
| Output power | 60 W maximum |
| Voltage range | -20 V to +20 V |
| Current range | Up to ±8 A at 6 V or below; up to ±3 A above 6 V |
| Quadrants | Four-quadrant source and sink |
| FastLog | Up to 500 ksample/s |
The NGU401 power limit defines which voltage and current combinations are available at the same time. Plot the intended operating points against the official output characteristic and leave margin for DUT startup current, transients and protection behavior. When sinking energy, confirm polarity, power dissipation and the applicable quadrant limit before connecting the DUT. Teams in Vietnam often choose Rohde & Schwarz NGU401 rental for this reason.
Rohde & Schwarz NGU401 rental Vietnam: choose the right NGU401 configuration
The NGU401 supports voltage-priority and current-priority operation, remote sensing, source and sink operation, USB and LAN control, and FastLog acquisition up to 500 ksample/s. Battery simulation and the digital voltmeter function require the applicable options.
List the normal voltage, peak current, pulse duration, source or sink quadrant, measurement resolution and logging rate for the test. State the required interfaces, triggering, rack accessories and calibration documents in the quotation so the supplied configuration can be checked precisely.

Rohde & Schwarz NGU401 rental Vietnam: typical four-quadrant connection schematic
Force HI ───── rated lead ───── DUT high terminal Force LO ───── return lead ──── DUT low terminal Sense HI/LO ── separate leads ─ DUT sense points Trigger / LAN / USB ─────────── control computer
This functional guide is not an internal service schematic. Follow the manufacturer manual for terminal assignments, grounding, remote sensing and safe four-quadrant operation. Disable the output before changing connections and use leads rated for the expected voltage, current and fault energy.
Rohde & Schwarz NGU401 rental Vietnam: plan a repeatable source-measure test
- Define voltage, current, power, quadrant and protection limits. This applies to every Rohde & Schwarz NGU401 rental we arrange in Vietnam.
- Check polarity, grounding and sense connections while output is disabled.
- Select voltage-priority or current-priority mode for the DUT behavior.
- Enable the output and monitor the operating quadrant and compliance state.
- Record settings, firmware, sample rate, fixture and environmental conditions.
For fast events, save raw readings with timestamps and document averaging or filtering. For battery simulation, document the programmed curve, initial state and stop conditions so the test can be reproduced safely.

Rohde & Schwarz NGU401 rental Vietnam: NGU401 FAQ
What are the voltage and current ranges of the NGU401?
The NGU401 operates from -20 V to +20 V. Up to ±8 A at 6 V or below; up to ±3 A above 6 V. Its maximum output power is 60 w maximum.
Can the NGU401 source and sink power?
Yes. Its four-quadrant architecture can source or sink voltage and current within the specified operating envelope. So, plan it early when you book a Rohde & Schwarz NGU401 rental in Vietnam.
How fast can the NGU401 log measurements?
The FastLog function supports acquisition rates up to 500 ksample/s. Confirm the selected measurement mode, interfaces and storage workflow for the intended event.
Can I request a NGU401 rental in Vietnam?
Send the project dates, delivery location, operating range, interfaces and required accessories to Lost in HCM. Rental availability and the supplied configuration require quotation confirmation.
What is the manufacturer order number for NGU401?
Rohde & Schwarz lists order number 3639.3763.03 for the NGU401. Options and accessories may have separate order numbers.
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How the DC power supply works
Each channel works inside a power envelope, not just a voltage and current limit. For example, an NGP800 channel set to 32 V can deliver 6.25 A at its 200 W limit. That is why maximum voltage and maximum current rarely apply at the same time.
Supplies with source and sink capability can also absorb current from the device. As a result, you can discharge a battery or test a charger without a separate load. Regenerative models, such as the Keysight RP5900 series, go further and return that energy to the power grid. Our Rohde & Schwarz NGU401 rental units in Vietnam ship ready for this kind of work.
What to look for in a DC power supply
Most buyers start with voltage and current, but those numbers tell only part of the story. Channel layout, noise, and logging also shape your results. Here is what to check before you request a quote for any model in this family.
- Channel count and isolation. Models range from one output to four, and some channels float apart from each other. Also, isolated outputs let you build split rails or stack channels in series for more voltage.
- Per-channel and total power. Many supplies cap each channel and the whole unit at separate limits. For instance, the R&S HMP4040 allows 160 W per channel but 384 W across all four outputs.
- Low noise for sensitive circuits. Analog front ends, RF modules, and sensors react to ripple on the supply rail. Therefore, linear models such as the R&S NGL200 series suit those circuits better than high-power switching units. Rental of the Rohde & Schwarz NGU401 is available across Vietnam.
- Source and sink operation. Two-quadrant and four-quadrant models, like the R&S NGM and NGU series, both deliver and absorb current. Because of this, they can test a charger or discharge a cell without a separate load.
- Data logging and fast capture. Built-in loggers record voltage and current, so you can prove how much power a board draws. Meanwhile, R&S FastLog on NGM models samples up to 500,000 times per second for short spikes.
- Remote control and sequencing. LAN and USB interfaces let a test script set outputs and read back values. In addition, output sequencing on models like the Keysight E36313A powers rails up in a fixed order.
Typical applications
DC power supplies sit on almost every electronics bench in Vietnam's industrial parks. However, the job decides which model fits best. Below are common tasks, such as firmware bring-up and battery tests. Each one also rewards a clear view of voltage and current. Teams in Vietnam often choose Rohde & Schwarz NGU401 rental for this reason.
- Firmware bring-up benches. New boards need stable rails while engineers load code and debug start-up faults. A programmable triple-output supply, such as the Rigol DP832 or Keysight E36313A, covers logic and analog rails.
- Burn-in and power cycling. Burn-in racks run many boards for hours or days under steady load. Also, timer and sequence functions automate power cycling, so you can repeat start-up tests without manual switching.
- Battery drain analysis. Battery-powered devices draw tiny sleep currents and sharp bursts during radio transmission. Therefore, a DC power analyzer like the Keysight N6705C, or an R&S NGM supply, logs both in detail.
- Battery and charger testing. Chargers, battery packs, and battery management boards need a source that can also absorb current. Source and sink models handle this task, while regenerative units like the RP5900 series suit higher power. This applies to every Rohde & Schwarz NGU401 rental we arrange in Vietnam.
- Automated test stations. Production testers need supplies that a script can set, measure, and switch off in seconds. Because of this, LAN-controlled models fit into ATE racks for a ramp-up, then return when the campaign ends.
- High-voltage and EV components. EV parts, inverters, and DC links often need hundreds of volts at kilowatt power. For example, the Keysight DP5776AH and DP5776AL offer 5.1 kW, up to 600 V and 8.5 A.
Industries that use the Rohde & Schwarz NGU401 rental Vietnam
DC supplies support every sector that designs, builds, or tests electronic products. For example, that includes the FDI electronics plants in Bac Ninh, Binh Duong, and Dong Nai. So here is how each industry puts this family to work.
- Electronics manufacturing (EMS). EMS plants in Bac Ninh and Binh Duong run supplies on every test and burn-in station. Therefore, multi-channel supplies with LAN control help them scale stations during a ramp-up. So, plan it early when you book a Rohde & Schwarz NGU401 rental in Vietnam.
- Automotive and EV components. Suppliers of EV components test DC-DC converters, chargers, and battery packs at high voltage. Because of this, they use system and regenerative supplies at FDI plants in Binh Duong.
- Semiconductors and components. Chip test and packaging sites in Vietnam need precise voltage and current to qualify parts. So four-quadrant supplies like the R&S NGU series help them source, sink, and measure in one setup.
- Consumer and IoT devices. Design centers in Ho Chi Minh City build wearable devices and sensors on tight power budgets. As a result, they rely on logging supplies and power analyzers to measure sleep and active current.
- Telecom and RF equipment. Base station, router, and RF module makers need clean rails that do not add noise to sensitive receivers. Hence, low-noise linear supplies are common on their design and production benches. Our Rohde & Schwarz NGU401 rental units in Vietnam ship ready for this kind of work.
- Universities and training. Engineering faculties equip many identical benches for each semester of lab classes. Renting a batch of compact supplies, such as the R&S NGE100B series, is often simpler than a purchase.
Rohde & Schwarz NGU401 rental Vietnam compared with other brands
Before you commit to Rohde & Schwarz NGU401 rental Vietnam, compare it with other common supply lines. However, the best choice depends on your loads, your channel needs, and your test software. A model that fits one bench may waste money on another.
| Brand | Comparable line | Strength | Consider |
|---|---|---|---|
| Keysight | E36300 Series and N6700 modular system | Wide range from quiet bench units to modular DC power analyzers | Modular mainframes need the right modules, so plan the configuration before you order |
| Rohde & Schwarz | NGE100B, NGL200, NGM200 and NGP800 series | Clear series split by task, from education benches to precision linear supplies | Battery simulation and some functions need options, so check each order code |
| Tektronix | Keithley 2200 and 2280S Series | Keithley precision heritage suits low-current, battery, and device test work | Compare channel count and output power with your rails before you choose |
| Chroma | 62000H Series programmable DC supplies | Strong focus on high-power DC sources for EV and solar tests | Sized for high-power racks, so it is often too large for bench work |
For small benches, a compact multi-channel supply usually gives the best value. However, battery, charger, and high-voltage work calls for source and sink or system supplies. So decide on the load profile first, then compare brands on noise, logging, and software support. Specifications change, so confirm current data with each maker before you decide.
Rent or buy?
Rent when you need extra outputs for a ramp-up, a burn-in campaign, or a short project. Renting also covers gaps while your own supply is away for service. However, buy when the same model runs every day, because ownership then costs less over time.
Selection tips
- List every rail your device needs, with voltage, peak current, and start-up order. Then choose a model with enough channels and sequencing to match that list. Rental of the Rohde & Schwarz NGU401 is available across Vietnam.
- Check both the per-channel limit and the total power limit. For example, a 32 V output at 200 W supplies 6.25 A, not its full rated current.
- Choose a linear supply for low-noise analog, RF, or sensor circuits. Meanwhile, high-power switching models suit motors, heaters, and other heavy loads.
- If your device charges or regenerates energy, pick a source and sink model. Otherwise the supply may trip or lose control when current flows back.
- Use remote sense leads when the load draws high current through long cables. As a result, the supply corrects for voltage drop and holds the set value at the device.
- Confirm the interface your test software uses, such as LAN, USB, or GPIB. Also ask which drivers and options come with the rental unit. Teams in Vietnam often choose Rohde & Schwarz NGU401 rental for this reason.
Handling and care
- Switch off the outputs before you connect or move test leads. This habit protects the device and stops sparks at the terminals, especially at higher voltages.
- Wear a grounded wrist strap when you handle bare boards on the bench. Also keep the supply and the device on a common ground to avoid static damage.
- Let the supply warm up before precise measurements, as the maker's data sheet advises. Reading accuracy and output drift settle once the internal parts reach a stable temperature.
- Follow the calibration interval each maker states in its data sheet or manual. When it falls due, we can arrange service through the manufacturer or an authorized partner.
- Ship supplies in their original packing or a padded case to protect the terminals. In addition, keep them dry in the humid season, because moisture can harm high-voltage parts. This applies to every Rohde & Schwarz NGU401 rental we arrange in Vietnam.
Frequently asked questions
Can I rent the NGU401 in Vietnam?
Yes. Lost in HCM quotes the Rohde & Schwarz NGU401 rental Vietnam on weekly, monthly or quarterly terms. Rental units ship with a valid calibration certificate and a VAT e-invoice.
Does a rented power supply come with a calibration certificate?
Yes, rental units ship with a valid calibration certificate, so you can use them in audited stations. If your site needs a specific standard on the certificate, tell us in your quote request.
What is the difference between a power supply and a source measure unit?
A power supply delivers stable voltage or current, with basic readings. In contrast, an SMU such as the R&S NGU also sinks current and resolves smaller values. Choose an SMU when you need to characterize devices, not just power them.
Why can't I get full voltage and full current at the same time?
Each channel has a power limit as well as voltage and current limits. For example, a 200 W channel at 32 V supplies 6.25 A. Therefore, check the power envelope for every operating point you plan to use.
Can I connect channels in series or parallel?
Many models with isolated outputs allow it, so you can reach a higher voltage or current. For instance, the R&S NGE103B can combine its three outputs for up to 96 V or 9 A. Always check the manual first, because rules differ by model.
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. So, plan it early when you book a Rohde & Schwarz NGU401 rental in Vietnam.
