AFBR-79E4Z-D Datasheet, PDF (1/2 Pages) AVAGO TECHNOLOGIES LIMITED – 4 Channels Quad Small Form Factor Pluggable Parallel Optics Transceiver

AFBR-79E4Z-D
4 Channels Quad Small Form Factor
Pluggable Parallel Optics Transceiver
Reliability Data Sheet
Description
The Avago Technologies AFBR-79E4Z-D are 10G, 4 chan-
nel Quad Small Form Factor, Pluggable Parallel Optics
Transceiver, utilizing Avago’s 850nm VCSEL.
FIT Rate Summary
FIT rate for AFBR-79E4Z-D is calculated as 197.42. Compu-
tation was done at 40°C based on Telcordia SR- 332 (Issue
2), Part Count Method. The details of the calculation are
included in this report.
Random Failure Rate (FIT) Calculation
Failure in time rate, or FIT, is defined as the number of
failures per billion device hours. In the product useful life
region, the random failure rate is considered as a constant
failure rate. In this region MTTF, Mean Time to Failure, is
defined as MTTF = 1/FIT.
FIT Prediction Based on Telcordia SR-332 Parts Count
Procedure
The Telcordia parts count method assumes that the mod-
ule failure rate is equal to the sum of the device compo-
nent failure rates. Modifiers are included to take into con-
sideration variations in module operation environments,
device quality requirements, temperature, and stress. The
tables that follow show the FIT for the components used
in the modules and the total FIT which have been calcu-
lated for an operating ambient temperature of 40oC.
Random Failure Rate (FIT) Calculation
Failure in time rate, or FIT, is defined as the number of
failures per billion device hours. In the product useful life
region, the random failure rate is considered as a constant
failure rate. In this region MTTF, Mean Time to Failure, is
defined as MTTF = 1/FIT.
FITs Prediction Based on Telcordia SR-332 Part Count Pro-
cedure
The Telcordia parts count method assumes that the mod-
ule failure rate is equal to the sum of the device compo-
nent failure rates. Modifiers are included to take into con-
sideration variations in module operation environments,
device quality requirements, temperature, and stress. The
following table shows the FITs for the components used in
the module and the total FITs which has been calculated
for a case temperature of 40°C.