Keysight
4142 B
Provisional entry — research in progress
This page was generated automatically from cited public sources and hasn't completed the full research pass yet. Every specification shown carries its source; more detail is added as research completes.
What is it?
What do the numbers mean?
Power & electrical12
- Integrated measurement functions
- Current/voltage sources, nanovoltmeters, and picoammeters in one instrument[1]
- Source Monitor Unit (SMU) sensitivity
- Forces voltage while measuring currents down to 20 fA; forces current while monitoring voltages down to 40 µV[1]
- HP 41422A High Current Unit (HCU)
- 2 slots; pulse mode only; 100 µs pulsed measurements up to ±10 V and 10 A[1]
- HP 41423A High Voltage Unit (HVU)
- 2 slots; DC or pulsed measurements to ±1000 V; low-leakage design measures currents down to 2 pA[1]
- HP 41425A Analog Feedback Unit (AFU)
- 1 slot; used with two SMUs for analog voltage/current searches; finds target values in 12 ms[1]
- Ground Unit (GNDU)
- High-current SMU set to 0 V, used as measurement ground; Kelvin connection; maximum offset voltage ±500 µV; current range ±1.6 A[1]
- Typical measurement time (SMU)
- HP 41420A/HP 41421B SMU (20 V/100 mA range, spot measurement): force I or V in 3.5 ms; measure I or V in 4.0 ms[1]
Control & software1
- Interfaces
- HP-IB; external trigger input (TTL, negative logic, minimum pulse width 100 µs); external trigger output (TTL, negative logic)[1]
Dimensions & facilities2
Configuration & options9
- Maximum output power
- Sum of all measurement units' instantaneous output power cannot exceed 32 W[1]
- Measurement modes
- Plug-in units operate individually or in synchronized modes to perform ten different types of measurements[1]
- Self-test and calibration
- Self-test at power-up; offset errors in each measurement unit auto-calibrated every 30 minutes[1]
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
- Integrated measurement functionsCurrent/voltage sources, nanovoltmeters, and picoammeters in one instrument[1]
- Source Monitor Unit (SMU) sensitivityForces voltage while measuring currents down to 20 fA; forces current while monitoring voltages down to 40 µV[1]
- HP 41420A High Power SMU2 slots; 40 µV to 200 V, 20 fA to 1 A (±200 V and ±1 A)[1]
- HP 41421B Medium Power SMU1 slot; 40 µV to 100 V, 20 fA to 100 mA (±100 V and ±100 mA)[1]
- HP 41422A High Current Unit (HCU)2 slots; pulse mode only; 100 µs pulsed measurements up to ±10 V and 10 A[1]
- HP 41423A High Voltage Unit (HVU)2 slots; DC or pulsed measurements to ±1000 V; low-leakage design measures currents down to 2 pA[1]
- HP 41425A Analog Feedback Unit (AFU)1 slot; used with two SMUs for analog voltage/current searches; finds target values in 12 ms[1]
- Maximum configuration coverage2000 V max using two HVUs; 20 A (pulsed) using two HCUs[1]
- Maximum common-to-ground voltage±42 V[1]
- Ground Unit (GNDU)High-current SMU set to 0 V, used as measurement ground; Kelvin connection; maximum offset voltage ±500 µV; current range ±1.6 A[1]
- Power requirements100/120/220 V ±10%; 240 V -10%/+5%; maximum 750 VA (48-66 Hz)[1]
- Typical measurement time (SMU)HP 41420A/HP 41421B SMU (20 V/100 mA range, spot measurement): force I or V in 3.5 ms; measure I or V in 4.0 ms[1]
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
No research found yet — worked with this tool? Share what you know.
Not publicly documented
The following facts about the 4142 B 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 4142 B are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the 4142 B 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 4142 B 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 4142 B are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the 4142 B 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 (2)Every fact above is drawn from these public sources
- [1]accusrc.comaccusrc.com
- [2]Equipment inventory listing
Last updated Sep 1, 2026.
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