MIL-PRF-39009/2C
6.3.1 Interchangeability. The increase in power rating for RER50 by this revision does not require the
assignment of new Federal Stock Numbers for items previously described as RE50, 15 watt rating. Items
in this specification are mutually interchangeable with items of the same type designation procured under
MIL-R-39009/2A.
6.4 Chassis area derating curves. Figure 2 may be used for design information.
6.5 Change in power rating RER50. The revision of style RER50 to 20 watts from the previous 15 watt
rating is based on qualification of similar style RE70 (characteristic N) under MIL-PRF-18546. In addition,
the accumulated FR component hours at 15 watts have been halved for qualification FR level retention.
Until sufficient hours are established at 20 watts, the Qualified Products List will continue to list FR levels
at the previous 15 watt rating, and in addition, the FR level at the 20 watt rating
*
6.6 Changes from previous issue. The margins of this specification are marked with asterisks to
indicate where changes from the previous issue were made. This was done as a convenience only and
the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and
contractors are cautioned to evaluate the requirements of this document based on the entire content
irrespective of the marginal notations and relationship to the last previous issue.
Custodians:
Preparing activity:
Army - CR
Army - CR
Navy - EC
Air Force - 85
Agent:
DLA CC
DLA CC
Review activities:
Army - AT, AV, CR4, MI
(Project 5905-2009-051)
Navy - CG, MC, OS
Air Force 19
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.
8
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