Model: 291-8631-00

Quartz Crystal Unit

Properties:

Overall Length
Between 0.978 inches and 1.023 inches
Terminal Length
Between 0.223 inches and 0.248 inches
Overall Width
Between 0.750 inches and 0.755 inches
Body Length
Between 0.755 inches and 0.775 inches
Body Width
Between 0.715 inches and 0.725 inches
Body Thickness
0.317 inches
Overall Thickness
0.340 inches
Terminal Diameter
Between 0.048 inches and 0.052 inches
Mode Of Oscillation
Third overtone
Circuit Resonance
Series resonance
Specified Frequency
26.700 megahertz
Holder Cover Material
Metal
Operating Tempurature Range
-55.0/+90.0 degrees celsius
Center To Center Distance Between Terminals
0.478 mils and 0.494 centimeters
Drive Level Rating
Between 1.6 milliwatts and 2.4 milliwatts
Frequency Tolerance For Operating Tempurature In Percent
-0.005/+0.005
Equivalent Resistance Value In Ohms
40.0
Style Designator
Oval body, pin terminals
NSN
5955-00-232-7140
Part Number
291-8631-00
Description
Crystal Unit,quartz
CAGE
13499

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

Part 291-8631-00 NSN 5955-00-232-7140

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061700
UFC:
34580
LTL:
RATING VARIABLE
LCL:
RATING VARIABLE
WCC:
658
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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