Q-Tech QT826 Sine Wave User Manual
Page 4
Q-TECH Corporation
10150 W. Jefferson Blvd.
Culver City, CA 90232
SIZE
A
CAGE NO.
51774
QT824, QT825 and QT826
Sine-Wave 32 Flat Pack
REV.
E
Page 4 of 10
Storage Temperature range
-62°C to +125°C
Note 1
Lead Temperature (Soldering, 10 seconds)
300°C
Note 1
Notes: 1 – without irreversible damages3.2.1 Physical
Characteristics
3.2.1.1 Dimensions - The TCXO outline dimensions and terminal connections shall be as shown in Figure 1
herein.
3.2.1.2 Weight - The TCXO shall weigh less than or equal to 25 grams.
3.2.1.3 Materials - The TCXO package body and lead finish shall be gold in accordance with MIL-PRF-38534.
3.3
Design and Construction
The design and construction of the crystal oscillator shall be as specified herein. As a minimum, the
oscillators shall meet the design and construction requirements of MIL-PRF-55310, except element
evaluation shall be as specified in 3.3.1.
SCREENING FLOW CHART
(Screening is performed on a 100% basis)
Operation
Non-Destruct Wire Bond Pull
100%, MIL-STD-883, Method 2023 (2.4 grams)
Internal Visual
MIL-STD-883, methods 2017 & 2032 condition K (class S). During the time
interval between final internal visual inspection and preparation for sealing,
hybrid crystal oscillators shall be stored in a dry, controlled environment as
defined in MIL-STD-883, method 2017 or in a vacuum bake oven.
Stabilization Bake
48 hrs minimum @ +150°C MIL-STD-883, Method 1008 TC B
Thermal Shock
MI-STD 883, Method 1011, TC A
Temperature Cycling
MI-STD 883, Method 1010, TC B
Constant Acceleration
MIL-STD-883, Method 2001, TC A (5000 gs, Y1 Axis only)
PIND
MIL-STD-883, Method 2020, TC B
Electrical Test
Frequency, Output levels, Input Current@ +25°C
Burn-In (Powered with load)
+125°C for 240 hours
Seal Test (fine & gross)
100% Method 1014, (TC A1 for fine leak and TC C for gross leak)
Electrical Test
Frequency, Output levels, Input Current
@ +25°C & Temp Extremes listed on the Electrical Specification
Radiographic
MIL-STD-883, Method 2012 class S
External visual
MIL-STD-883 Method 2009