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transformer for switch mode power supplies
EE 8,8 (EF 8,8) - EE 32 (EF 32)
0,8VA - 180VA
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HF-transformer, switched mode power supply transformer,
ferrite transformer
catalogue “HF-components” as PDF-File
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open |
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potted |
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example for customer specified products as PDF-File
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description
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performance
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switched mode power supply transformer according to
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IEC EN61558-2-17 for SMPS, HF-transformer, ferrite transformer
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application
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for Power Integrations (TOPSWITCH, TINYSWITCH) Advanced Techology and ST(VIPer).
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types can also be constructed as an HF choke.
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voltages
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to customer demand, also more input and output voltages are possible
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frequency
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20 kHz to 300 kHz, extra types to 500 kHz
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core material
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N87 oder PL7 for high power, with other material less power
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insulation class
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F (155°C) for lacquered and B(130°C) for potted components
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temperature
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ambient 40°C, higher temperatures
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decrease the secondary power
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protective class
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fire class UL94V0, IP00 according to DIN 40 050
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winding
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with lacquered copper wire, HF-litz wire, foil or triple insulated Furukawa wire, interlaced construction for best magnetic coupling
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construction
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vacuum varnished (open types) with class H impregnation varnish or vacuum potted in a case
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terminals
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Print, SMD or with free wires construction
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safety
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margins for air- and creepage-distance
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screening possible, secondary power will decrease
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table
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power - N87/PL7
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type size
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frequency
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flyback
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forward
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push-pull
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EE 6,3
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100
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kHz
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0,5
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VA
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-
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-
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-
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-
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PDF
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EE 8,8
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100
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kHz
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0,8
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VA
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1,0
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VA
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1,4
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VA
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PDF
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EE 13
open
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25
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kHz
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2,4
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VA
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2,8
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VA
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4,0
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VA
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50
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kHz
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3,6
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VA
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4,2
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VA
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6,0
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VA
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100
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kHz
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4,8
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VA
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5,6
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VA
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8,0
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VA
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PDF
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EE 13
potted
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25
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kHz
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2,4
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VA
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2,8
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VA
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4,0
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VA
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50
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kHz
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3,6
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VA
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4,2
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VA
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6,0
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VA
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100
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kHz
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4,8
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VA
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5,6
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VA
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8,0
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VA
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PDF
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EE 16
open
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25
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kHz
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6
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VA
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7
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VA
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10
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VA
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50
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kHz
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10
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VA
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11
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VA
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16
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VA
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100
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kHz
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13
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VA
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15
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VA
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21
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VA
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PDF
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EE 16
potted
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25
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kHz
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6
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VA
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7
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VA
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10
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VA
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50
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kHz
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10
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VA
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11
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VA
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16
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VA
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100
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kHz
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13
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VA
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15
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VA
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21
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VA
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PDF
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EE 20
open
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25
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kHz
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10
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VA
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12
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VA
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17
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VA
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50
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kHz
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16
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VA
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18
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VA
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26
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VA
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100
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kHz
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20
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VA
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25
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VA
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35
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VA
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PDF
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EE 20
potted
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25
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kHz
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10
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VA
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12
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VA
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17
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VA
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50
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kHz
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16
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VA
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18
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VA
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26
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VA
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100
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kHz
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20
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VA
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25
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VA
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35
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VA
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PDF
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EE 20
Pick&Place-SMD
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25
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kHz
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10
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VA
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12
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VA
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17
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VA
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50
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kHz
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16
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VA
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18
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VA
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26
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VA
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100
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kHz
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20
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VA
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25
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VA
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35
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VA
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PDF
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EE 25
open
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25
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kHz
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20
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VA
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25
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VA
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35
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VA
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50
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kHz
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30
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VA
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35
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VA
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50
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VA
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100
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kHz
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40
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VA
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50
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VA
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70
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VA
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PDF
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EE 25
potted
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25
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kHz
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20
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VA
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25
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VA
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35
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VA
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50
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kHz
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30
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VA
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35
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VA
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50
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VA
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100
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kHz
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40
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VA
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50
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VA
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70
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VA
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PDF
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EE 30
open
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25
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kHz
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30
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VA
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40
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VA
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55
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VA
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50
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kHz
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50
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VA
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60
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VA
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90
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VA
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100
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kHz
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70
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VA
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80
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VA
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120
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VA
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PDF
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EE 30
potted
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25
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kHz
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30
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VA
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40
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VA
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