Higher voltage value hermetically-sealed aluminium electrolytic capacitors
Cornell Dubilier Electronics (CDE) has announced significantly higher
voltage values for its MLSH Slimpack series of hermetically sealed aluminium
The unique components feature a true glass-to-metal seal that prevents
dry-out of the capacitor electrolyte. As a result, they provide
extraordinarily long life (5,000 hours) to more than meet the most demanding
applications for defence and aerospace systems. With the line expansion
just announced, they are now available in nine values, from 120µF to
3,200µF, with ratings up to 250VDC, says the company.
The hermetic Slimpack is an offshoot of the well-established non-hermetic
Flatpack series. The new MLSH Slimpack can be used as a replacement for
parallel and series banks of wet tantalum capacitors for both new and
existing designs. This change is especially beneficial where bulk storage
MLSH Slimpack devices measure 1 x 1.5 x 0.5 inch, weigh less and have more
capacitance than a parallel bank of three or more wet tantalum capacitors.
High rated capacitance is maintained at temperatures as low as -55C, a key
requirement for power supplies used in defence and aerospace applications.
Top-end temperature rating is 125C.
All devices in the MLSH Slimpack series feature rugged stainless steel cases
with a vibration rating of 80g. In most applications, there are significant
cost and space savings vs. a comparably rated bank of wet tantalum
capacitors. The new high-voltage MLSH Slimpacks eliminate the need for
series banking, says the company.