NSN 5955-00-948-9639 CR-18A/U6.638889MHZ, CR18AU6638889MHZ, MILC30983
Product Details | QUARTZ CRYSTAL UNIT
5955-00-948-9639 An item which consists of a quartz crystal resonator(s), suitably mounted in a HOLDER, QUARTZ CRYSTAL.
Part Alternates: CR-18A/U6.638889MHZ, CR18AU6638889MHZ, MILC30983, MILC3098-3, 5955-00-948-9639, 00-948-9639, 5955009489639, 009489639
Electrical and Electronic Equipment Components | Oscillators and Piezoelectric Crystals
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | 11 APR 1966 | 00-948-9639 | 00196 ( CRYSTAL UNIT, QUARTZ ) |
Drawings & Photos | NSN 5955-00-948-9639
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Technical Data | NSN 5955-00-948-9639
| Characteristic | Specifications |
|---|---|
| MODE OF OSCILLATION | FUNDAMENTAL |
| CIRCUIT RESONANCE | ANTIRESONANCE |
| LOAD CAPACITANCE IN PICOFARADS | 31.5 MINIMUM AND 32.5 MAXIMUM |
| SHUNT CAPACITANCE IN PICOFARADS | 7.0 MAXIMUM |
| SPECIFIED FREQUENCY | 6.638889 MEGAHERTZ |
| FREQUENCY TOLERANCE FOR OPERATING TEMP IN PERCENT | -0.005 TO 0.005 |
| OPERATING TEMP RANGE | -55.0 TO 105.0 DEG CELSIUS |
| EQUIVALENT RESISTANCE VALUE IN OHMS | 35.0 NOMINAL |
| DRIVE LEVEL RATING | 8.0 MILLIWATTS MINIMUM AND 12.0 MILLIWATTS MAXIMUM |
| STYLE DESIGNATOR | 1 OVAL BODY, PIN TERMINALS |
| OVERALL LENGTH | 1.023 INCHES MAXIMUM |
| TERMINAL LENGTH | 0.223 INCHES MINIMUM AND 0.248 INCHES MAXIMUM |
| OVERALL WIDTH | 0.757 INCHES MAXIMUM |
| BODY LENGTH | 0.775 INCHES MAXIMUM |
| BODY WIDTH | 0.725 INCHES MAXIMUM |
| BODY THICKNESS | 0.317 INCHES MAXIMUM |
| OVERALL THICKNESS | 0.352 INCHES MAXIMUM |
| TERMINAL DIAMETER | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM |
| CENTER TO CENTER DISTANCE BETWEEN TERMINALS | 0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM |
| HOLDER COVER MATERIAL | METAL |
| TEST DATA DOCUMENT | 81349-MILC3098 SPECIFICATION |
| MANUFACTURERS CODE | 81349 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | CR-18A/U6.638889MHZ |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MILC3098-3 |
Restrictions/Controls & Freight Information | NSN 5955-00-948-9639
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||