Agilent
4261 A LCR Meter
The Agilent 4261 A LCR Meter is a digital LCR meter. The Agilent 4261 A LCR Meter offers automatic ranging and circuit mode selection. The Agilent 4261 A LCR Meter uses 120 Hz and 1 kHz test frequencies.[1][2][3]
What it is
The Agilent 4261A is a digital LCR meter with automatic ranging and circuit mode selection. The instrument offers test frequencies of 120 Hz and 1 kHz. The Agilent 4261A measures inductance-dissipation factor, capacitance-dissipation factor, and resistance. Basic accuracy is 0.2 percent of reading. Internal DC bias voltages of 1.5 V, 2.2 V, and 6 V are selectable. An external bias of 0 to +30 V is supported.[1][3]
How it works
The Agilent 4261A features automatic balancing, ranging, and circuit mode selection. The instrument supports both series and parallel equivalent circuit modes. The Agilent 4261A provides test frequencies of 120 Hz and 1 kHz. Internal DC bias can be applied. The display is a 3 1/2 digit readout.[1][3]
What do the numbers mean?
Power & electrical8
Performance1
Configuration & options5
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
Where are the manuals?
Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.
Not publicly documented
Field notes
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Frequently asked questions
Not publicly documented
The following facts about the 4261 A LCR Meter are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the 4261 A LCR Meter are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the 4261 A LCR Meter are on record.
Answerable by: an OEM product catalog or an engineer who ordered or specified the tool
The control-system platform and OS era of the 4261 A LCR Meter are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the 4261 A LCR Meter are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the 4261 A LCR Meter is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (4)Every fact above is drawn from these public sources
- [1]wyomingelectronics.com — wyomingelectronics.comwyomingelectronics.com
- [2]waferpedia.com — waferpedia.comwaferpedia.com
- [3]Agilent/ HP 4261A LCR Meter - Calright Instruments — calright.comcalright.com
- [4]Inventory photo
Last updated Oct 10, 2026.