Option b (pg 11), Modified, Mil-prf-55310 – Q-Tech CLASS B+ User Manual
Page 11: Level b, See details in, Table iii, Q-tech, Class b+ products
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Q-TECH
CORPORATION
QPDS-0001, Rev L, June 2013 (ECO #10851)
CLASS B+ PRODUCTS
HIGH RELIABILITY HYBRID CRYSTAL CLOCK OSCILLATORS
2.5 to 5.0Vdc - 15kHz to 350MHz
Test Description
MIL
Standard Method Condition Qty
Comments
Internal Visual
883
2017
Class H
100%
Stabilization Bake
883
1008
C
100%
48 hours at +150°C
Temperature Cycling
883
1010
B
100%
10 cycles
Constant Acceleration
883
2001
A
100%
Y1 direction only (5,000g’s)
Particle Impact Noise Detection (PIND)
883
2020
B
100%
5 passes minimum
(see Note 1)
Pre Burn-In Electrical
Refer to Table III-a and Detail Specification
100%
Burn-In
883
1015
+125°C
for 160 hours
100%
With load and nominal supply voltage
Final Electrical
Refer to Table III-a and Detail Specification
100%
Percent Defective Allowance (PDA)
38534
PDA=2% (Supply Current only)
Seal Fine Leak
883
1014
A1
100%
Seal Gross Leak
883
1014
C
100%
External Visual
883
2009
100%
Screening - Option B (Modified MIL-PRF-55310, Level B)
(Example: QT178LD10B-50.000MHz)
NOTES:
1. PIND testing shall be performed using five (5) independent passes and all failures found at the end of each pass are rejected. The
survivors of the last pass are acceptable.
2. 100% Group A QCI test per MIL-PRF-55310
Parameters
Pre BI
at 25ºC
Pre BI
Low Temp
Pre BI
High Temp
Post BI
at 25ºC
Post BI
Low Temp
Post BI
High Temp
Output frequency
✓
✓
✓
✓
✓
✓
Frequency/temperature stability
✓
✓
✓
✓
✓
✓
Frequency/voltage stability
✓
✓
Input current
✓
✓
✓
✓
Output voltage
✓
✓
✓
✓
✓
✓
Waveform
✓
✓
✓
✓
✓
✓
Duty cycle
✓
✓
✓
✓
✓
✓
Rise and fall times
✓
✓
✓
✓
Start up time
✓
✓
✓
✓
Tristate Function (if applicable)
✓
✓
✓
✓
Table III-a
Electrical Test - Measurement Requirements
QCI (per MIL-PRF-55310, Level B or S) (To be specified on Purchase Order)
• Group B (AgingTest)
• Group C (See details on Table VIII)
QCI Options (per MIL-PRF-38534, Class K-Modified)
• Group B Inspection per MIL-PRF-38534, Class K-Modified (See details on Table V)
• Group C Inspection per MIL-PRF-38534, Class K-Modified (Delta Limits per Table II) (See details on Table VI)
• Group D Inspection per MIL-PRF-38534, Class K-Modified (See details on Table VII)
Table III