Model: CR74/U54M81250

Quartz Crystal Unit

Properties:

Overall Length
Between 0.753 inches and 0.778 inches
Terminal Length
Between 0.223 inches and 0.248 inches
Overall Width
0.435 inches
Body Length
0.530 inches
Overall Thickness
0.183 inches
Terminal Diameter
Between 0.038 inches and 0.042 inches
Mode Of Oscillation
Third overtone
Circuit Resonance
Series resonance
Load Capacitance In Picofarads
Between 3.5 and 4.5
Shunt Capacitance In Picofarads
4.0
Specified Frequency
54.813 megahertz
Holder Cover Material
Metal
Operating Tempurature Range
-55.0/+105.0 degrees celsius
Center To Center Distance Between Terminals
0.184 mils and 0.200 centimeters
Drive Level Rating
Between 1.6 milliwatts and 2.4 milliwatts
Frequency Tolerance For Operating Tempurature In Percent
-0.003/+0.003
Equivalent Resistance Value In Ohms
Between 5.0 and 30.0
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", "", etc.).
Specification Data
81349-mil-c-3098/54 government specification
NSN
5955-01-234-4779
Part Number
CR74/U54M81250
Description
Crystal Unit,quartz
CAGE
81349

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

Part CR74/U54M81250 NSN 5955-01-234-4779

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00196
FIIG:
A059A0
Concept No.:
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8541900000
  • SITC: 77688
  • End Use: Semiconductors
  • NAICS: 334413
  • USDA: 1

Freight Class: Diode, transistor & similar semiconductor device parts

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