Click here to make tpub.com your Home Page

Page Title: Requirements
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Figure 2. Contact voltage and current combinations.
Up
Relays, Reed (Mercury Wetted), Solder Seal 0 to 7.5 Volt Amperes
Next
Table I. Dash number and applicable characteristics.



img
MIL-R-83407/3D
REQUIREMENTS:
Design and construction:
Dimensions and configuration: See figure 1.
Enclosure: Metal, tin finish.
Terminals: Solder pin.
Contact data: 1/
Screening: Applicable.
Arrangement: See table I.
Load ratings:
Switching (dc or peak ac): See figure 2.
Carry: From A, 0 to 2 amperes. Form C, 0 to 1 ampere.
Contact resistance (both initial and after life): 60 milliohms, maximum.
Contact noise: Not applicable.
Contact bounce: Contact bounce shall be measured on each contact set using an oscilloscope or other
acceptable means approved by the qualifying activity. The trace shall show contact switching at operate and
release and appropriate timing markers. Rated voltage shall be applied to the coil. Contact bounce shall be
measured at a contact load of 100 mA at 6 V dc. A contact bounce shall be considered any occurrence equal
to or greater than 90 percent of the open circuit voltage with a pulse width of 10 microseconds or greater.
The circuit shown on figure 1 of military specification MIL-R-83407, or equivalent, shall be used. Contact
bounce shall not exceed 2.5 milliseconds (operate time not included).
Switch capsule screening procedure (applicable to dash numbers -011 through -020): 2/
Gross leak screening procedure: All switch capsules shall be subjected to an external air pressure of 100 psi for
12 +, -0 hours followed by a temperature bake at 150C for 0.5 +, -0 hours. Switch capsules that pass the
dynamic switching characteristics test of this specification shall be acceptable.
Fine leak screening procedure: All switch capsules shall be subjected to fine leak test per MIL-STD-202, method
-12
3
atm cm /s.
112, test condition C, procedure IIIb. The maximum leak rate shall be 1 x 10
Coil data: See table I.
Duty rating: Continuous.
Coil inductance: Not applicable.
Coil power dissipation: Not applicable.
Operate and release time: 3.0 milliseconds, maximum over temperature range.
1/ The minimum hold-off voltage shall be 1,000 V dc.
2/ The switch shall be magnetically actuated with mercury-wetted contacts. The switch shall not utilize an
evacuation of back-fill hollow tubing as a terminal.
5

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +