PUI Audio · Electronic Components
AI-221
BUZZER MAGN 4.5VDC 400HZ PANEL
Part NumberAI-221
ManufacturerPUI Audio
AvailabilityAvailable to order — request a quote
Specifications
NSN6350-01-414-3390 (NSN)
Federal Item NameBUZZER
MaterialALUMINUM
Terminal TypeWIRE LEAD
Overall Length1.280 INCHES NOMINAL
Overall Width0.850 INCHES NOMINAL
Overall Height0.610 INCHES NOMINAL
Action TypeVIBRATING
Surface TreatmentANODIZE
Furnished ItemsENCLOSURE
Current Rating In Amps4.5
Frequency Rating400.0 HERTZ NOMINAL
Federal Supply Class6350 — Miscellaneous Alarm, Signal, And Security Detection Systems
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 AI-221 available?
We can source AI-221 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 AI-221 by PUI Audio obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AI-221 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 AI-221?
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 AI-221?
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.