70053K Datasheet, PDF (7/28 Pages) List of Unclassifed Manufacturers – THE ADVANTAGES AND BENEFITS OF USING AMVECO TOROIDAL TRANSFORMERS

QUALIT Y TO THE CORE
UNMATCHED QUALIT Y/UNPARALLELED SERVICE
Power system design engineers have come to recognize AMVECO as the
leading manufacturer of custom toroidal power transformers and inductors.
When you select AMVECO for your power transformer needs you acquire
a team of experienced professionals that offer assistance from design to
delivery and beyond.
Over the years since 1982, we have built a reputation for excellence by
focusing on design engineering state-of-the-art production capabilities
and customer support services. Our quality management system has
been ISO 9001 certified since 1992.
One simple fact verifies our quality claims: our customers stay with us
year after year and continue to trust us with their new product needs.
In addition to Class A insulation system, Amveco offers Class B (130˚C),
Class E (120˚C), Class F (155˚C) and Class H (180˚C).
Electrostatic Shield (Customer Specified)
• Reduces capacitive coupling between primary
and secondary windings
• Copper foil (2 mil) laminated between
polyester film and tape
• Tightly wound over primary insulation
Primary to Secondary Insulation
• Polyester film-Class B (130˚C)
• Four layers minimum between windings
• Meets test requirement of 4000V RMS for 1
minute between primary and secondary
Wire Leads
• Choice of two types of leads connected to windings:
*Self leads: The magnet wire is extended through sleeving
for connection to circuit. Standard: Class A (105˚C)
*Stranded wire leads: Class A (105˚C) - Class H (180˚C)
• Each lead anchored to toroid body with high tensile
strength tape to withstand severe pull test
• Primary leads covered with second layer of
sleeving - double insulation... standard on
all units
• Color, length, stripping and terminations
can be customer specified
Windings
• Base coat of Polyester. Heavy
topcoat of amide imide (200˚C)
• Wound uniformly over entire core
• Better heat dissipation
• Windings configured for
minimum flux leakage
• Low voltage maintained
between adjacent turns
Thermal Protection
(Customer Specified)
• Usually in primary circuit
• Normally closed-auto reset opens
at high temperature
• One-shot fuse also available
• UL, CSA, VDE listed components
Core Insulation
• All cores: 100% surface coverage of four
layers of 2 mil polyester film Class B (130˚C)
• Protects, insulates and cushions the core
from windings and reduces vibration
AMVECO’s unique method to protect the wire
from the sharp corners of the core during the
winding operation permits unlimited choice of
core size to best meet the customer’s available
space. Other methods include use of plastic
end caps or dipping the core in epoxy. Amveco
can offer these methods too, if preferred by the
customer.
Center Hole Potting
(Customer Specified)
• Thermoplastic material
• High mounting precision
• Threaded insert or press
fitted stud is optional
• Thermally conductive
compound available
Outer Insulation
• Tape wound type: Standard
two layers polyester film
Class B (130˚C)
• Magnetic enclosures optional
Core
• Cores are manufactured and annealed in-house, under
controlled conditions
• Continuous tightly wound grain oriented silicon steel...
no airgaps, no mechanical noise
• Lathed radial corners... compact design, most efficient use
of materials
• No core caps necessary
Magnetic Shield
(Customer Specified)
• Multiple layers of grain oriented
silicon steel tightly wound around
the toroid’s circumference
• Fixed in place by outer insulation