7. ORDERING INFORMATION
7.1
Ordering Part Number. The ordering part number is made up of an alphanumeric series
of 16 characters. Design-affected product options, identified by the parenthetic letter on
the Optional Parameters list (¶ 5.2a and b), are included within the device part number.
The Part Number breakdown is described as:
Screening Option
per Table 4, 5.1.1
2101 R 100M0000 E B S
Model # (Table 1)
Design Pedigree
Input Voltage
A = +3.3V
B = +5V
C = +12V
D = +15V
E = Class S Components,
Enhanced Element Evaluation
Swept Quartz
Temperature Stability
A = ±0.5ppm, 0°C to +50°C
B = ±1ppm, 0°C to +50°C
D = ±1ppm, 0°C to +70°C
F = ±2ppm, 0°C to +70°C
I = ±5ppm, 0°C to +70°C
K = ±1ppm, -20°C to +70°C
M = ±2ppm, -20°C to +70°C
R = ±5ppm, -20°C to +70°C
T = ±2ppm, -40°C to +85°C
V = ±4ppm, -40°C to +85°C
W = ±5ppm, -40°C to +85°C
Y = ±10ppm, -55°C to +105°C
R = Class S Components,
Swept Quartz
B = Class B Components,
Swept Quartz
C = Class B Components, Non-
Swept Quartz
D = Ruggedized COTS: Non-
Swept Quartz, Commercial
Grade Components
7.1.1 Model Number. The device model number is the four (4) digit number assigned to a
corresponding package and output combination per Table 1.
7.1.2 Design Pedigree. Class S designs correspond to letters “E” and “R” and are described in
paragraph 5.2a. Class B variants correspond to either letter “B” or “C” and are described in
paragraph 5.2a. Ruggedized COTS, using commercial grade components, correspond to letter
“D”.
7.1.2.1 Input Voltage. Voltage is the 15th character. Voltage availability is dependant on platform.
7.1.3 Output Frequency. The nominal output frequency is expressed in the format as specified in
MIL-PRF-55310 utilizing eight (8) characters.
7.1.4 Screening Options. The 16th character is the Screening Option selected from Table 4.
CODE IDENT NO.
UNSPECIFIED TOLERANCES
SIZE
DWG NO.
REV.
SHEET
F
A
00136
N/A
DOC200103
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