MIL-PRF-3098/61K
Inches
mm
Ltr
Min
Max
Min
Max
A
---
.435
---
11.05
B
---
.183
---
4.65
C
---
.402
---
10.21
D
.027
.032
0.69
0.81
E
.184
.200
4.67
5.08
F
---
.150
---
3.81
G
---
.530
---
13.46
H
.223
.248
5.66
6.30
J
.015
.025
0.38
0.64
K
.165
.175
4.19
4.45
L
.038
.042
0.97
1.07
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for general information only.
3. Marking to be in accordance with MIL-PRF-3098.
4. Pin undercut may be omitted.
FIGURE 1. Crystal unit - CR84/U - Continued.
REQUIREMENTS:
Dimensions, marking, and configuration: See figure 1.
Frequency range: 17.0 MHz to 61.0 MHz, inclusive.
Frequency tolerances:
Primary operating temperature range: 20 parts per million (ppm).
Room temperature range: 70 ppm.
Frequency stability: 5 ppm
Equivalent resistance: 40 ohms, maximum.
Drive level: 1.0 mW maximum.
Resonance: Series.
Mode of oscillation: Third mechanical overtone.
Reference temperature: -85C 1C.
2
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