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Custom Switch Mode Transformers (EE/EF/EK/ER)

Note: Chart represents ESTIMATED power handling. Transformer packagesmay vary based on safety requirements, switching frequency, duty cycle,inductance requirements, and temperature rise performance. Tamura DesignStaff should be contacted for complete designs on these "Tamura Preferred”low cost packages. Mechanical dimensions are typical.




Low Power Transformer Selection Guide
Power Estimated @ 130kHz Switching Frequency

TAMURA PART
NUMBER SERIES
1
(W)
2
(W)
3
(W)
4
(W)
6
(W)
8
(W)
15
(W)
20
(W)
MOUNTING POTTED
EF12.6 1 - 3 Watts THT N
EF16 4 - 6 Watts THT N


Mid to High Power Transformer Selection Guide

Power Estimated in Flyback Topology @ 50kHz Switching Frequency

TAMURA PART
NUMBER SERIES
6
(W)
8
(W)
12
(W)
20
(W)
30
(W)
40
(W)
50
(W)
60
(W)
80
(W)
90
(W)
100
(W)
120
(W)
200
(W)
300
(W)
MOUNTING POTTED
EE2219 7 - 11 Watts THT N
EK2820AT/DT 20-30 Watts THT N
ER2923AT/DT 24-36 Watts THT N
ER2834F/T 40-60 Watts THT N
ER2828F 24-36 Watts THT N
EK2929T 32-48 Watts THT N
ER3541T 66-96 Watts THT N
ER3944T 80-120 Watts THT N
ER4045T 80-120 Watts THT N
ER4245T 128-192 Watts THT N
ER4954T 180-300 Watts THT N

 


Mid to High Power Transformer Selection Guide
Power Estimated in Forward Topology @ 100kHz Switching Frequency
 
TAMURA PART
NUMBER SERIES
12
(W)
20
(W)
30
(W)
40
(W)
50
(W)
60
(W)
80
(W)
90
(W)
100
(W)
120
(W)
150
(W)
180
(W)
250
(W)
360
(W)
MOUNTING POTTED
EE2219 12-28 Watts THT N
EK2820AT/DT 32-48 Watts THT N
ER2923AT/DT 40-60 Watts THT N
ER2834F/T 56-84 Watts THT N
ER2828F 40-60 Watts THT N
EK2929T 48-82 Watts THT N
ER3541T 96-150 Watts THT N
ER3944T 128-192 Watts THT N
ER4045T 128-192 Watts THT N
ER4245T 160-240 Watts THT N
ER4954T 240-360 Watts THT N

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1040 South Andreasen Drive
Suite 100
Escondido, CA 92029

Phone: 1-800-472-6624
Fax: 951-676-9482


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