MIL-M-38510/628
b. A device which has a power dissipation of 150 mW in case E is to be tested at an air flow of 200 linear ft/min and the 25°C testing is to be accomplished at a case temperature of 20°C. On figure 4 ∆TJ due to air flow is
+3°C. The ∆TJ due to case temperature change is -5°C (25-20). Therefore the total ∆TJ = -5°C +3°C = -2°C.
Using figure 6, find the +25°C, -∆TJ column. To adjust VOL(max) locate the limit coefficient corresponding to VOL(max) for a negative ∆TJ, this value is 0.44 mV°C. Multiply the ∆TJ by the coefficient and algebraically add it to the +25°C VOL(max) limit from table III.
VOL(max) (adjusted limits) = (-2°C) x (0.44 mV/°C) + (-1620 mV)
= -.88 mV -1620 mV = -1620.88 mV
Use -1621 mV
Follow the same procedure to adjust the remaining parameters at +25°C.
6.9 Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extensiveness of the changes.
Custodians: Preparing activity: Army - CR DLA - CC
Navy - EC
Air Force - 11 (Project 5962-2005-044) DLA - CC
Review activities: Army - MI, SM
Navy - AS, CG, MC, SH, TD Air Force - 03, 19, 99
NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https://assist.daps.dla.mil.
22
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business