INCH-POUND MIL-PRF-55310/16H 23 April 2003 SUPERSEDING MIL-PRF-55310/16G 8 July 2002 PERFORMANCE SPECIFICATION SHEET OSCILLATOR, CRYSTAL CONTROLLED, TYPE 1 (CRYSTAL OSCILLATOR (XO)), 0.1 Hz THROUGH 80 MHz, HERMETIC SEAL, SQUARE WAVE, TTL This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification and MIL-PRF-55310. Inches mm 2. Metric equivalents are given for general information only. 3. Unless otherwise specified, tolerances are ±.005 (0.13 mm) for three place decimals and ±.02 (0.5 mm) for two place decimals. 4. All pins with NC function may be connected internally and are not to be used as external tie points or connections. FIGURE 1. Dimensions and configuration. DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.

MIL-PRF-55310/16H REQUIREMENTS: Interface and physical dimensions: See figure 1. Mounting: See figure 1. Terminals: See figure 1. Seal: Hermetic in accordance with MIL-PRF-55310, maximum leakage rate 5 x 10-8 atm cc/s. Weight: 0.5 ounce, maximum. * Oscillator: Class 2 or any class 1 or class 3 oscillator meeting all class 2 requirements and verification tests specified herein and in MIL-PRF-55310. Calibration: Manufacturer calibrated. Screening: In accordance with MIL-PRF-55310, product level B or S, as applicable. Temperature: Operating: See table I. Storage: -62°C to + 125°C. Oscillator load:...

TABLE I. Dash numbers and operating characteristics. 1/ Maximum input current for no load condition. Actual configuration of TTL loads must be added to determine power supply requirements. 2/ A TTL unit load is defined as: 1.6 mA sink, 0.04 mA source, and 2pF capacitance. Frequency-voltage tolerance: ±2 ppm maximum for a ±10 percent change in supply voltage. Measurements taken at reference temperature and operating temperature range end points. Frequency aging: Measurements shall be taken at +70°C ±0.2°C at intervals of not more than every 72 hours for 30 days minimum (see table I). ±5 ppm per...

MIL-PRF-55310/16H Ambient pressure: Nonoperating: In accordance with MIL-PRF-55310. Operating: Method 105 of MIL-STD-202, test condition C. Part or Identifying Number (PIN): Consists of “M” prefix followed by specification sheet number, a dash and coded alphas, and numeric number. See example: EXAMPLE M55310/16- M prefix and specification sheet number Product level (S, B, or C) Dash number (see table I) Operating temperature range (A, B, or C) (see table I) Frequency The margins of this specification sheet are marked with asterisks to indicate where changes from the previous issue were made....