Description
Not every high-voltage job needs ten kilovolts. The Keithley 2290-5 high-voltage supply offers 5,000 V with up to 5 mA, which suits loads that draw real current. Lost in HCM lists it for rental and sale and arranges service on request.
Why 5 mA changes the choice of high-voltage supply
Voltage gets the headlines, but current decides what you can drive. At 5 mA this unit handles loads that would overwhelm a 1 mA source. In contrast, it stops at half the voltage of the 2290-10. So choose by the load you actually have, not by the biggest voltage on the shelf.
| Item | Value |
|---|---|
| Product type | High-voltage DC power supply |
| Outputs | 1 |
| Maximum voltage | 5,000 V |
| Maximum current | 5 mA |
| Nominal AC input | 120 VAC |
| Connectivity | GPIB and analog control |
A 120 VAC unit in Vietnam
The listing gives a nominal AC input of 120 VAC. Mains in Vietnam normally sit near 220 V, so ask Lost in HCM how the unit will run before it ships. A mismatched input can damage the instrument and stall your schedule. The 2290E-5 lists 240 VAC instead, which may suit your site better.
Everyday jobs for the Keithley 2290-5 high-voltage supply
Research benches, device characterization and high-voltage device testing all use a source of this size. GPIB lets a test program command the output, and analog control offers a second path. The product photo shows a pair of 2290 series units with bright red displays, so treat it as a series reference. Before any output goes live, check grounding, cabling and the interlock against the Keithley manual.
Rent or buy the 2290-5
Rent it for a qualification run or a short research push. Buy the Keithley 2290-5 high-voltage supply when the bench needs a dependable 5 kV source all year. Then request a quote from Lost in HCM with your site mains, dates and accessories. For more choices, browse the power supply category, visit Tektronix or contact SMK Vietnam.
2290-5 questions
Does the 2290-5 offer RS-232?
The listing names GPIB and analog control, so a serial port is not confirmed. Ask Lost in HCM if you need one.
Can it power a load that draws 8 mA?
No. The maximum current is 5 mA, so look at a different model or a different approach for that load.
What is the nominal AC input?
It lists 120 VAC. Confirm how the unit will be powered at your site before you order.
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