M39003/01-2596 Vishay, M39003/01-2596 Datasheet - Page 15

• Manufacturer Part Number: M39003/01-2596
• Description: CAPACITOR TANT 1UF, 50V, AXIAL
• Manufacturer: Vishay

Specifications of M39003/01-2596

• Capacitance Tolerance: ± 10%
• Voltage Rating: 50VDC
• Capacitor Case Style: Axial
• No. Of Pins: 2
• Mil Spec: MIL-C-39003/01
• Capacitor Mounting: Through Hole
• Termination Type: Axial Leaded
• Capacitance: 1µF
• Capacitor Terminals: Axial Leaded
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na

WEIBULL DISTRIBUTION METHOD FOR DETERMINING FAILURE RATE, MIL-PRF-39003 (Continued)
If no failures occur, the lot can be re-started at a higher stress
level only once. If no failures occur at the higher stress level,
the lot is not suitable for Weibull analysis.
After a minimum of 40 h, the failure count is again taken. If
no further failures occur, one is added to the count. Failure
rate is calculated by the following:
Document Number: 40018
Revision: 14-Sep-09
ACTUAL WEIBULL TEST ANALYSIS FOR THE VISHAY SPRAGUE EQUIPMENT
t
Z (t) = [- β 1n (1 - P2)105]/t
0
15 min
Military MIL-PRF-39003 Qualified, Styles CSR13, 21, 23
2 h ≤ t
1
≤ 10 h
Solid-Electrolyte T
2
A.F.
For technical questions, contact:
40 h
ANTALEX
Where
The failure rate can be calculated from the previous formula
as follows:
®
Capacitors,
[e-mail]
Z(t) = Failure Rate
β = Weibull shape parameter (slope of the line
between t
abscissa and 1n 1n (1/(1-P)) ordinate
P = Ratio of failures to units on test at stop time
t
A.F. = Acceleration Factor
Z (t) = [- β 1n (1 - P)105]/t A.F.
Z (t) = [- 0.2119 1n (1 - 0.0326) 105]/40 (17356)
Z (t) = [- 0.2119 (- 0.0331) 105]/6.9424 (105)
Z (t) = [0.0070/6.9424]
Z (t) = 0.0010 %/1000 h
2
= Number of hours on test
1
and t
2
graphed on paper with a 1n (t)
M39003/01/03/09
Vishay Sprague
www.vishay.com
15