Model: CR26/U257K2800

Quartz Crystal Unit

Properties:

Overall Length
1.023 inches
Terminal Length
0.238 inches
Overall Width
0.757 inches
Body Length
0.775 inches
Body Width
0.725 inches
Body Thickness
0.317 inches
Overall Thickness
0.352 inches
Terminal Diameter
0.050 inches
Mode Of Oscillation
Fundamental
Circuit Resonance
Series resonance
Specified Frequency
257.280 kilohertz
Frequency Tolerance At Reference Tempurature In Percent
-0.002/+0.002
Frequency Stability In Percent
-0.0005/+0.0005
Controlled Reference Temp
75.0 degrees celsius
Operable Tempurature Range
-40.0/+70.0 degrees celsius
Holder Cover Material
Metal
Operating Tempurature Range
+70.0/+80.0 degrees celsius
Center To Center Distance Between Terminals
0.486 inches
Drive Level Rating
Between 2.0 milliwatts and 1.6 milliwatts and 2.4 milliwatts
Frequency Tolerance For Operating Tempurature In Percent
-0.002/+0.002
Equivalent Resistance Value In Ohms
3000.0
Style Designator
Oval body, pin terminals
Test Data Document
81349-milc3098 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.).
NSN
5955-00-889-4238
Part Number
CR26/U257K2800
Description
Crystal Unit,quartz
CAGE
81349

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

Part CR26/U257K2800 NSN 5955-00-889-4238

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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