Lau Technologies · Electronic Components
490B-1
Test Set, Telephone
Part Number490B-1
ManufacturerLau Technologies
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-126-0217 (NSN)
Federal Item NameTEST SET,TELEPHONE
Federal Supply Class6625 — Test Instruments
Functional DescriptionENVELOPE DELAY MEASURING SET CONSISTS OF A TRANSMITTER AND RECEIVER WHICH MEASURES DELAY VERSUS FREQUENCY AND AMPLITUDE
Frequency Rating47.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
Test Type For Which DesignedENVELOPE DELAY MEASUREMENT
Reference Data And LiteratureTO 33A1-5-342-1
Ac Voltage Rating115.0 VOLTS NOMINAL OR 230.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED
PhaseSINGLE LOCATION NOT OTHERWISE SPECIFIED
Electrical Power Source RelationshOPERATING
Enclosure FeatureSINGLE ITEM W/HOUSING
Vendor Part Numbers490B
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 490B-1 available?
We can source 490B-1 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 490B-1 by Lau Technologies obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 490B-1 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 490B-1?
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 490B-1?
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.