Model: CR55/U42M79166

Quartz Crystal Unit

Properties:

Overall Length
0.530 inches
Terminal Length
0.5003 inches
Overall Width
0.435 inches
Body Width
0.402 inches
Body Thickness
0.150 inches
Overall Thickness
0.183 inches
Terminal Diameter
Between 0.016 inches and 0.019 inches
Mode Of Oscillation
Third overtone and fifth overtone
Circuit Resonance
Series resonance
Shunt Capacitance In Picofarads
7.0
Specified Frequency
42.791667 megahertz
Holder Cover Material
Metal or glass
Operating Tempurature Range
-55.0/+105.0 degrees celsius and -55.0/+125.0 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
-0.005/+0.005 and -0.0010/+0.0010
Equivalent Resistance Value In Ohms
40.0
Style Designator
Tube type, 4 wire leads
Test Data Document
81349-mil-c-3098/108 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-3098/33 government specification
NSN
5955-00-989-0279
Part Number
CR55/U42M79166
Description
Crystal Unit,quartz
CAGE
81349

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

Part CR55/U42M79166 NSN 5955-00-989-0279

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061700
UFC:
34580
LTL:
RATING VARIABLE
LCL:
--
WCC:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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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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