Teledyne Brown Engineering · Electronic Components
689BM128
Oscillator, Crystal Controlled
Part Number689BM128
ManufacturerTeledyne Brown Engineering
AvailabilityAvailable to order — request a quote
Specifications
NSN5963-00-503-1140 (NSN)
Federal Item NameOSCILLATOR,CRYSTAL CONTROLLED
Federal Supply Class5963 — Electronic Modules
Overall Width2.750 INCHES NOMINAL
Switching Rate Per Second150
FSC Application DataRADIO TRANSMITTER,EXCEPT NAVIGATION,NONAIRBORNE
Inclosure TypeENCASED
External Dc Operating Voltage In V150.0 NOMINAL SINGLE VOLTAGE
Frequency Per Channel1.5 MEGAHERTZ MINIMUM OUTPUT CHANNEL AND 3.0 MEGAHERTZ MAXIMUM OUTPUT CHANNEL
Signal Voltage Rating Per Channel4.500 VOLTS MINIMUM OUTPUT
Circuit Construction TypeELECTRON TUBE
Operating Temp Range-40.0 TO 90.0 CELSIUS
Vibration Resistance Amplitude10.0 GRAVITATIONAL UNITS
Overall Height2.125 INCHES NOMINAL
Vendor Part NumbersSMC143980
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 689BM128 available?
We can source 689BM128 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 689BM128 by Teledyne Brown Engineering obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 689BM128 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 689BM128?
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 689BM128?
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.