Chicago Miniature Lighting · Electronic Components
305
LAMP, INCANDESCENT, S-8 SINGLE CONTACT BAYONET BASE, 28.0V 0.51A
Part Number305
ManufacturerChicago Miniature Lighting
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-811-9381 (NSN)
Federal Item NameCOUPLER,ROTARY,RADIO FREQUENCY
Federal Supply Class5985 — Antennas and Waveguides
Unit TypeCOAXIAL LINE
MaterialCOPPER ALLOY
Overall Length3.375 INCHES NOMINAL
Mounting ConfigurationTYPE N MALE,5/8-24 NEF-28 THD CONNECTOR ONE END
Overall Diameter1.250 INCHES NOMINAL
Input Impedance Rating In Ohms50.0
Output Impedance Rating In Ohms50.0
Current TypeAC AND DC
Overall Width9.300 INCHES NOMINAL
Trigger Sweep Voltage Amplitude Ra5.0 MILLIVOLTS MINIMUM AND 10.0 MILLIVOLTS MAXIMUM
Sweep Frequency Range+0.0 TO 5.0 MEGAHERTZ
PhaseSINGLE
Sweep Circuit TypeHORIZONTAL AND VERTICAL
X Axis Frequency Response Rating0.0 KILOHERTZ MINIMUM AND 150.0 KILOHERTZ MAXIMUM
Single Trigger Sweep Duration0.1 MICROSECONDS NOMINAL
X Axis Input Impedance Rating10.0 MEGOHMS NOMINAL
Overall Height4.400 INCHES NOMINAL
Beam Quantity1
Vendor Part Numbers3050PT89
Body Outside Diameter0.040 INCHES NOMINAL
Body Length4.500 INCHES NOMINAL
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 305 available?
We can source 305 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 305 by Chicago Miniature Lighting obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 305 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 305?
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 305?
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.