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561891 — CRYSTAL UNIT,QUARTZ

✓ Government record, cited
Intellinet · COMPONENT
PRODUCT OVERVIEW

561891: CRYSTAL UNIT,QUARTZ.

Unmanaged PoE Switch with 26 ports - 24 RJ45 and Two SFP, High-Power PoE+ The Intellinet Network Solutions 24-Port Gigabit Ethernet PoE+ Switch with 2 SFP Ports passes both data and electrical power to a number of PoE-compatible devices via standard Cat5e or Cat6 network cables. Equipped with 24 Gigabit Ethernet ports, this switch can power wireless LAN access points and bridges, VoIP phones, IP video cameras and more while delivering network speeds up to 1,000 Mbps. Power over Ethernet 802.3at This high-powered switch supports the IEEE 802.3at protocol and can inject up to 30 watts of power per port.

IEEE802.3af- or IEEE802.3at-compliant devices attached to the switch need no additional power to help avoid the time and expense of electrical rewiring and minimize the unsightly clutter of power supplies and adapters on ceilings and walls. Any mix of PoE and non-PoE devices is supported, and thanks to its short-circuit, overload and high-voltage protection function, your equ This part is cataloged in the U.S. Government catalog under NSN 5955-00-644-3460, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
561891
NSN: 5955-00-644-3460
FSC: 5955 — Oscillators and Piezoelectric Crystals
CAGE: 21821 — CTS VALPEY CORPORATION (USA)
SPECIFICATIONS
body_length1.516 INCHES NOMINAL IN
overall_width0.750 INCHES NOMINAL IN
overall_length1.844 INCHES NOMINAL IN
terminal_length0.328 INCHES NOMINAL IN
style_designatorOVAL BODY, PIN TERMINALS
circuit_resonanceSERIES RESONANCE
overall_thickness0.344 INCHES NOMINAL IN
terminal_diameter0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
drive_level_rating10.0 MILLIWATTS NOMINAL
mode_of_oscillationFUNDAMENTAL
specified_frequency66.500 KILOHERTZ
operating_temp_range-30.0 TO 85.0 CELSIUS DEGC
NSN5955-00-644-3460
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Intellinet CRYSTAL UNIT,QUARTZ TITLE COMPONENT PN 561891 MFR Intellinet CRYSTAL UNIT,QUARTZ
KEY FEATURES
•
FREQUENCY TOLERANCE FOR OPERATING TEMP IN PERCENT: -0.005 TO 0.005
•
TERMINAL DIAMETER: 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
•
TERMINAL LENGTH: 0.328 INCHES NOMINAL IN
•
MODE OF OSCILLATION: FUNDAMENTAL
•
EQUIVALENT RESISTANCE VALUE IN OHMS: 20.0 NOMINAL
•
OVERALL THICKNESS: 0.344 INCHES NOMINAL IN
•
STYLE DESIGNATOR: OVAL BODY, PIN TERMINALS
TECHNICAL CHARACTERISTICS
FREQUENCY TOLERANCE FOR OPERATING TEMP IN PERCENT-0.005 TO 0.005
TERMINAL DIAMETER0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
TERMINAL LENGTH0.328 INCHES NOMINAL IN
MODE OF OSCILLATIONFUNDAMENTAL
EQUIVALENT RESISTANCE VALUE IN OHMS20.0 NOMINAL
OVERALL THICKNESS0.344 INCHES NOMINAL IN
STYLE DESIGNATOROVAL BODY, PIN TERMINALS
OVERALL LENGTH1.844 INCHES NOMINAL IN
OVERALL WIDTH0.750 INCHES NOMINAL IN
DRIVE LEVEL RATING10.0 MILLIWATTS NOMINAL
OTHER ITEMS IN FSC 5955 — Oscillators and Piezoelectric Crystals
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5955-00-001-1622 5955-00-001-2933 5955-00-001-2977 5955-00-001-3014 5955-00-001-3242 5955-00-001-3243 5955-00-001-3244 5955-00-001-3328
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 561891?
561891 is a CRYSTAL UNIT,QUARTZ manufactured by Intellinet.
What is the NSN for 561891?
561891 is cataloged in the U.S. Government catalog under NSN 5955-00-644-3460. This indicates validated use in U.S. government and defense supply chains.
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