Bruel & Kjaer Uk Ltd. · Electronic Components
4143
Calibrator, Audio Level
Part Number4143
ManufacturerBruel & Kjaer Uk Ltd.
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-01-091-0771 (NSN)
Federal Item NameCALIBRATOR,AUDIO LEVEL
Federal Supply Class6625 — Test Instruments
Indicator TypeMETER
Functional DescriptionPRECISION LABORATORY CALIBRATION AND INVESTIGATION ON CONDENSER MICROPHONES
Furnished Items And QuantityPREAMPLIFIER TYPE 2627, 1 IN. MICROPHONE TYPE 4160, 2 ELECTROSTATIC ACTUATORS, 3 COUPLERS
Overall Depth200.0 MILLIMETERS NOMINAL
Overall Height133.0 MILLIMETERS NOMINAL
Overall Width380.0 MILLIMETERS NOMINAL
Reference Data And LiteratureBRUEL-KLAER 1991 CATALOG
Calibration Accuracy RatingPORM 0.005 DB RECIPROCITY CALIBRATION AND PORM 0.15 DB COMPARISON CALIBRATION
Mounting MethodBENCH
ESD/EMICode A — ESD/EMI sensitive item
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is 4143 available?
We can source 4143 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is 4143 by Bruel & Kjaer Uk Ltd. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4143 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like 4143?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for 4143?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.