CR-77/U54.947625MHZ

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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5955 Oscillators and Piezoelectric Crystals

National Stock Number

5955-01-122-4813

Item Name Code

00196

Assigment Date

11/21/1981 (44 years ago)

An item which consists of a quartz crystal resonator(s), suitably mounted in a holder, quartz crystal.

0.778 inches maximum overall length, 0.435 inches maximum overall width, 0.402 inches maximum body width, 0.530 inches maximum body length, 0.223 inches minimum and 0.248 inches maximum terminal length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Length: 0.778 inches maximum
Terminal Length: 0.223 inches minimum and 0.248 inches maximum
Overall Width: 0.435 inches maximum
Body Length: 0.530 inches maximum
Body Width: 0.402 inches maximum
Body Thickness: 0.150 inches maximum
Overall Thickness: 0.183 inches maximum
Terminal Diameter: 0.038 inches minimum and 0.042 inches maximum
Mode Of Oscillation: third overtone
Circuit Resonance: series resonance
Shunt Capacitance In Picofarads: 7.0 maximum
Specified Frequency: 54.947625 megahertz
Center To Center Distance Between Terminals: 0.184 inches minimum and 0.200 inches maximum
Operating Temp Range: -55.0 to 105.0 celsius
Drive Level Rating: 1.6 milliwatts minimum and 2.4 milliwatts maximum
Frequency Tolerance For Operating Temp In Percent: -0.002 to 0.002 and -0.003 to 0.003
Equivalent Resistance Value In Ohms: 40.0 maximum
Style Designator: oval body, pin terminals
Test Data Document: "81349-mil-c-3098 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Specification/Standard Data: 81349-mil-c-3098/55 government specification

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
CR-77/U54.947625MHZ	Quartz Crystal Unit
CR77/U54M94763	Quartz Crystal Unit

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5955-01-122-4813?

The FSCG of the NSN 5955-01-122-4813 is 5955

Does the NSN 5955-01-122-4813 have a Schedule B code assigned?

Yes, the Schedule B code is 8541900000

Does NSN 5955-01-122-4813 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 5955-01-122-4813 contain precious materials?

Item does not contain precious metal.

Does NSN 5955-01-122-4813 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5955-01-122-4813 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Sat, Nov 21, 1981