Siemens Semiconductor Group · Electronic Components
BB505B
28V Vrrm, 18pF Capacitance Varactor Diode
Part NumberBB505B
ManufacturerSiemens Semiconductor Group
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-288-4168 (NSN)
Federal Item NameSEMICONDUCTOR DEVICE,DIODE
MaterialSILICON SEMICONDUCTOR; GLASS ENCLOSURE
Current Rating20.00 MILLIAMPERES NOMINAL FORWARD CURRENT, DC
Terminals2 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length0.158 INCHES NOMINAL
Overall Diameter0.075 INCHES NOMINAL
Voltage Rating In Volts Per Charac30.0 MINIMUM BREAKDOWN VOLTAGE, INSTANTANEOUS
Terminal Length1.000 INCHES NOMINAL
Power Rating Per Characteristic400.0 MILLIWATTS NOMINAL TOTAL POWER DISSIPATION
Capacitance Rating In Picofarads2.15 NOMINAL
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
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 BB505B available?
We can source BB505B 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 BB505B by Siemens Semiconductor Group obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If BB505B 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 BB505B?
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 BB505B?
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.