ALC10C331ED450 BHC COMPONENTS, ALC10C331ED450 Datasheet - Page 17

• Manufacturer Part Number: ALC10C331ED450
• Description: CAPACITOR, 330UF 450V CAPACITOR, 330UF 450V
• Manufacturer: BHC COMPONENTS
• Series: ALC10r

Specifications of ALC10C331ED450

• Capacitance: 330UF
• Voltage Rating, Dc: 450V
• Capacitor Dielectric Type: ALUMINIUM ELECTROLYTIC
• Temp, Op. Max: 85(DEGREE C)
• Temp, Op. Min: -40(DEGREE C)
• Tolerance,: 20%
• Rohs Compliant: YES

5. DISPOSAL
Aluminium Electrolytic Capacitors are consignable waste
under the Special Waste Regulations 1996 (Statutory
Instrument 1996 N
Hazardous Waste Directive - Directive 91/689/EEC. The
electrolyte should therefore be treated as a hazardous waste
and advice should be sought from the local office of the
Environmental Agency regarding its disposal. In the United
Kingdom there are two possible methods of disposal; high
temperature incineration and land fill, from which the user
should seek the best practicable environmental option.
Due to the construction of an aluminium electrolytic
capacitor high temperature incineration may cause
the component to explode due to build-up of internal
gas pressure. In addition, incineration may also cause
emission of noxious fumes. If it is decided that this is the
best practicable option then it must be carried out under
controlled conditions and at a minimum temperature of
1200°C. It should also be confirmed that the incinerator
is authorised under parts A or B of the Environmental
Protection Act.
The alternative is to dispose of them in an engineered lined
land fill site that is licensed to take the materials identified
on this safety sheet. It should be stressed that these
capacitors are not to be disposed of in a land fill site set
aside for domestic waste.
BHC strongly recommend that if there are any doubts regarding
the disposal of aluminium capacitors that advice be sought
from the local regulating authority.
In addition BHC would like to request that users of
aluminium electrolytic capacitors respect the needs of the
environment and wherever possible recover as much of the
materials as possible, i.e. aluminium.
6. UNSAFE USE
Most failures are of a passive nature and do not represent a
safety hazard. A hazard may, however, arise if this failure
causes a dangerous malfunction of the equipment in which the
capacitor is employed. Circuits should be designed to fail safe
under the normal modes of failure.
The usual failure mode is an increase in leakage current
or short circuit. Other possible modes are decrease of
capacitance, increase in dissipation factor (and impedance) or
an open circuit.
Capacitors should be used in a well ventilated enclosure or
cabinet.
7. MOUNTING
Care should be taken when mounting by clamp, that any
safety vent in the can is not covered.
o
972), which complies with the EC
8. DIELECTRIC ABSORPTION
A phenomenon known as dielectric absorption can cause
aluminium electrolytic capacitors to re-charge themselves.
The phenomenon is well known but impossible to predict
with any great accuracy and so potentially any electrolytic
product could be affected. Thus, a capacitor, which has been
charged and then completely discharged, will appear to re-
charge itself, if left open circuit and this will manifest itself
as a small voltage across the terminals of the capacitor.
Generally the voltages seen are less than 20 Vdc, however
higher voltages have on occasion been reported.
In order to avoid any problems caused by this voltage
BHC recommends that capacitors be discharged before
connecting to the terminals.
Product Safety
15