Description
Occasionally the voltage matters more than the current. The Keysight E3641A power supply is a single-output dual-range bench unit offering 35 V at 0.8 A or 60 V at 0.5 A, within 30 W. Lost in HCM lists it for rental and sale in Vietnam.
High voltage, small current
This unit trades current for headroom in volts. For instance, at 35 V and 0.8 A it delivers 28 W, and at 60 V and 0.5 A it reaches 30 W. Because the currents are small, the Keysight E3641A power supply fits circuits that need a high rail but draw little.
Where the Keysight E3641A power supply fits
- Bias rails for amplifier and sensor stages, for example.
- Small high-voltage prototypes.
- Component checks that need a stable DC level.
- Teaching experiments on voltage and current limits.
Do the current check first on the Keysight E3641A power supply
Therefore, under 1 A is the key number here. If your load pulls more at start-up, however, the output will limit and the voltage will drop. So measure or estimate the peak draw before you choose this model. For heavier loads, a unit with more current is the better pick.
Safety at higher voltage
Also, sixty volts is enough to deserve respect. Insulate every connection, and switch the output off before you touch the circuit. Likewise, keep the supply and the device on a common ground to avoid static damage.
Planning the rental or purchase
Short experiments favor rental, since you avoid capital cost and storage. However, a permanent test station favors purchase. Then tell Lost in HCM which route you prefer and whether a used or equivalent unit is acceptable.
Share your target voltage, expected current and delivery city. Then request a quote from Lost in HCM. More power supplies sit in the category page. For maker documents, go to Keysight, and for help with the request, contact SMK Vietnam.
E3641A questions
What current is available at 60 V?
Up to 0.5 A in the 60 V setting. The 35 V setting allows up to 0.8 A.
Is it suitable for charging batteries?
Not as a general rule. Its current is small, so check your battery and charge profile with an engineer before you rely on it.
How does it differ from the E3640A?
Both are single-output dual-range units rated 30 W. The E3641A offers higher voltage ranges with lower current.
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