Project Description

etd ferrite cores

The ETD ferrite core design is a further development of E cores. They are optimized for use in SMPS transformers with switching frequencies between 50 and 200khz. The designation ETD (economic transformer design) implies that this design achieves maximum throughput power related to volume and weight of the total transformer. Shielding is somewhat improved compared with E cores. The matching coil formers are suitable for many winding type and can be handled on automatic equipment. Clips are easy to mount and range is available from several major supplies.

Summary:

  • Optimized shape of AC/DC SMPS transformers up to 200khz
  • Lowest weight and volume for throughput power
  • Efficient mounting parts
  • Moderate shielding
TypeMaterialLef [mm] *Aef [mm2] *Vef [mm3] *AL [nH/turns2]Gap [µm]µeROHSSpecifications
ETD29/16/10-3C903C9072
7654702350±25%ungapped
≈1800YES
ETD29/16/10-3C90-G1003C9072765470≈730≈100≈550YES
ETD29/16/10-3C90-G10003C9072765470≈93≈1000≈70YES
ETD29/16/10-3C90-G1503C9072765470≈530≈150≈400YES
ETD29/16/10-3C90-G2003C9072765470≈410≈200≈310YES
ETD29/16/10-3C90-G3003C9072765470≈290≈300≈220
YES
ETD29/16/10-3C90-G3503C9072765470≈250≈350≈190
YES
ETD29/16/10-3C90-G503C9072765470650±15%≈50≈890YES
ETD29/16/10-3C90-G5003C9072765470≈180≈500≈136YES
ETD29/16/10-3C943C94
727654702350±25%ungapped≈1800YES
ETD29/16/10-3C94-G10003C9472765470≈93≈1000≈70YES
ETD29/16/10-3C94-G2003C9472765470≈410≈200≈310YES
ETD29/16/10-3C94-G5003C9472765470≈180≈500
≈136YES
ETD29/16/10-3C953C95727654702900±25%ungapped≈2200YES
ETD29/16/10-3C95-G10003C9572765470≈93≈1000≈70YES
ETD29/16/10-3C95-G2003C9572765470≈430≈200≈320YES
ETD29/16/10-3C95-G5003C9572765470≈180≈500≈140YES
ETD29/16/10-3C963C96727654702100±25%ungapped≈1600YES
ETD29/16/10-3C96-G10003C9672765470≈92≈1000≈69YES
ETD29/16/10-3C96-G2003C9672765470≈400≈200≈310YES
ETD29/16/10-3C96-G5003C9672765470≈180≈500≈134YES
ETD29/16/10-3C973C97727654702860±25%
ungapped≈2160YES
ETD29/16/10-3C97-G10003C9772765470≈93≈1000≈70YES
ETD29/16/10-3C97-G2003C9772765470≈430≈200≈320YES
ETD29/16/10-3C97-G5003C9772765470≈180≈500≈140YES
ETD29/16/10-3F363F36727654701600±25%ungapped≈1200YES
ETD29/16/10-3F36-G10003F3672765470≈90≈1000≈68YES
ETD29/16/10-3F36-G2003F3672765470≈370≈200≈280YES
ETD29/16/10-3F36-G5003F3672765470≈170≈500≈130
YES
ETD29/16/10-3F463F4672765470940±25%ungapped≈710YES
ETD29/16/10-3F46-G10003F4672765470≈87≈1000≈66YES
ETD29/16/10-3F46-G2003F467276
5470
≈320≈200≈240YES
ETD29/16/10-3F46-G5003F46
72765470≈160≈500≈120YES
ETD34/17/11-3C903C9078.697.176402600±25%ungapped≈1700YES
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ETD34/17/11-3C90-G2003C9078.697.17640≈520≈200≈340YES
ETD34/17/11-3C90-G22003C9078.697.17640≈55≈2200≈35YES
ETD34/17/11-3C90-G5003C9078.697.17640≈230
≈500≈150YES
ETD34/17/11-3C943C9478.697.176402700±25%ungapped≈1740YES
ETD34/17/11-3C94-G10003C9478.697.17640≈120≈1000
≈76YES
ETD34/17/11-3C94-G2003C9478.697.17640≈520≈200≈340YES
ETD34/17/11-3C94-G5003C9478.697.17640≈230≈500≈150YES
ETD34/17/11-3C953C9578.697.176403270±25%ungapped≈2100YES
ETD34/17/11-3C95-G10003C9578.697.17640≈120≈1000≈77YES
ETD34/17/11-3C95-G2003C9578.697.17640≈540≈200≈350
YES
ETD34/17/11-3C95-G5003C9578.697.17640≈230≈500≈150YES
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ETD34/17/11-3C96-G5003C9678.697.17640≈230≈500≈146YES
ETD34/17/11-3C973C9778.697.176403270±25%ungapped≈2100YES
ETD34/17/11-3C97-G10003C9778.697.17640≈120≈1000≈77YES
ETD34/17/11-3C97-G2003C9778.697.17640≈540≈200≈350YES
ETD34/17/11-3C97-G5003C9778.697.17640≈230≈500≈150YES
ETD34/17/11-3F363F3678.697.176401850±25%ungapped≈1200YES
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ETD34/17/11-3F36-G2003F3678.697.17640≈470≈200≈300YES
ETD34/17/11-3F36-G5003F3678.697.17640≈220≈500≈140YES
ETD34/17/11-3F463F4678.697.176401100±25%ungapped≈710YES
ETD34/17/11-3F46-G10003F4678.697.17640≈110≈1000≈71
YES
ETD34/17/11-3F46-G2003F4678.697.17640≈400≈200≈260YES
ETD34/17/11-3F46-G5003F4678.697.17640≈200≈500≈130YES
ETD39/20/13-3C903C9092.2125115002900±25%ungapped≈1700YES
ETD39/20/13-3C90-G10003C9092.212511500≈150≈1000≈89YES
ETD39/20/13-3C90-G2003C9092.212511500390±8%≈200≈380YES
ETD39/20/13-3C90-G20003C9092.212511500≈77≈2000≈45YES
ETD39/20/13-3C90-G29003C9092.212511500≈53≈2900≈31YES
ETD39/20/13-3C90-G5003C9092.212511500190±6%
≈500≈170
YES
ETD39/20/13-3C943C9492.2125115002900±25%ungapped≈1700YES
ETD39/20/13-3C94-G10003C9492.212511500≈150≈1000≈89YES
ETD39/20/13-3C94-G2003C9492.212511500≈650≈200≈380YES
ETD39/20/13-3C94-G5003C9492.212511500≈290≈500≈170YES
ETD39/20/13-3C953C9592.2125115003650±25%ungapped≈2100YES
ETD39/20/13-3C95-G10003C9592.212511500≈150≈1000≈89YES
ETD39/20/13-3C95-G2003C9592.212511500≈680≈200≈400YES
ETD39/20/13-3C95-G5003C9592.212511500≈300≈500≈174YES
ETD39/20/13-3C973C9792.2125115003650±25%ungapped≈2100YES
ETD39/20/13-3C97-G10003C9792.212511500≈150≈1000≈89YES
ETD39/20/13-3C97-G2003C9792.212511500≈680≈200≈400YES
ETD39/20/13-3C97-G5003C9792.212511500≈300
≈500≈174YES
ETD39/20/13-3F363F3692.2125115002000±25%ungapped≈1170YES
ETD39/20/13-3F36-G10003F3692.212511500≈150≈1000
≈86YES
ETD39/20/13-3F36-G2003F3692.212511500≈580≈200≈340YES
ETD39/20/13-3F36-G5003F3692.212511500≈280≈500≈160YES
ETD39/20/13-3F463F4692.2125115001200±25%ungapped≈700YES
ETD39/20/13-3F46-G10003F4692.212511500≈140≈1000≈82
YES
ETD39/20/13-3F46-G2003F4692.212511500≈490≈200≈290
YES
ETD39/20/13-3F46-G5003F4692.212511500≈250≈500≈150YES
ETD44/22/15-3C903C90103173178003700±25%ungapped≈1750YES
ETD44/22/15-3C90-G15003C9010317317800≈140≈1500≈67YES
ETD44/22/15-3C90-G2003C9010317317800540±8%≈200≈420
YES
ETD44/22/15-3C90-G20003C9010317317800≈110≈2000≈50YES
ETD44/22/15-3C90-G21003C9010317317800≈100≈2100≈48YES
ETD44/22/15-3C90-G503C9010317317800≈2300≈50
≈1100YES
ETD44/22/15-3C90-G5003C9010317317800260±6%≈500≈190YES
ETD44/22/15-3C943C94103173178003700±25%ungapped≈1750YES
ETD44/22/15-3C94-G10003C9410317317800≈210≈1000≈99YES
ETD44/22/15-3C94-G2003C9410317317800≈890≈200≈420YES
ETD44/22/15-3C94-G5003C9410317317800≈400≈500≈190YES
ETD44/22/15-3C953C95103173178004640±25%
ungapped≈2200YES
ETD44/22/15-3C95-G10003C9510317317800≈210≈1000≈100YES
ETD44/22/15-3C95-G2003C9510317317800≈930≈200≈440YES
ETD44/22/15-3C95-G5003C9510317317800≈410≈500≈190YES
ETD44/22/15-3C973C97103173178004640±25%ungapped≈2200YES
ETD44/22/15-3C97-G10003C9710317317800≈210≈1000≈100YES
ETD44/22/15-3C97-G2003C9710317317800≈930≈200≈440YES
ETD44/22/15-3C97-G5003C9710317317800≈410≈500≈190YES
ETD44/22/15-3F363F36103173178002500±25%ungapped≈1200YES
ETD44/22/15-3F36-G10003F3610317317800≈200≈1000≈95YES
ETD44/22/15-3F36-G2003F3610317317800≈780≈200≈370YES
ETD44/22/15-3F36-G5003F3610317317800≈380≈500≈180YES
ETD49/25/16-3C903C90114
211240004200±25%ungapped≈1800YES
ETD49/25/16-3C90-G10003C9011421124000≈250≈1000≈110
YES
ETD49/25/16-3C90-G18003C9011421124000≈140≈1800≈62YES
ETD49/25/16-3C90-G2003C9011421124000≈1100≈200
≈460YES
ETD49/25/16-3C90-G20003C9011421124000≈130≈2000
≈56YES
ETD49/25/16-3C90-G2503C9011421124000≈890≈250≈380YES
ETD49/25/16-3C90-G5003C9011421124000310±6%≈500≈210YES
ETD49/25/16-3C943C94
114211240004200±25%ungapped≈1800YES
ETD49/25/16-3C94-G10003C94
11421124000≈250≈1000≈110YES
ETD49/25/16-3C94-G2003C94
11421124000≈1100≈200≈460YES
ETD49/25/16-3C94-G5003C9411421124000≈480≈500≈210YES
ETD49/25/16-3C953C95114211240005140±25%ungapped≈2200YES
ETD49/25/16-3C95-G10003C9511421124000≈260≈1000≈110
YES
ETD49/25/16-3C95-G2003C9511421124000≈1100≈200≈480
YES
ETD49/25/16-3C95-G5003C9511421124000≈490≈500
≈210YES
ETD49/25/16-3C973C97114211240005140±25%ungapped≈2200YES
ETD49/25/16-3C97-G10003C9711421124000≈260
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ETD49/25/16-3C97-G2003C9711421124000≈1100≈200≈480YES
ETD49/25/16-3C97-G5003C9711421124000≈490≈500≈210YES
ETD49/25/16-3F363F36114211240002800±25%ungapped≈1200YES
ETD49/25/16-3F36-G10003F3611421124000≈240≈1000≈105
YES
ETD49/25/16-3F36-G2003F3611421124000≈920≈200≈400YES
ETD49/25/16-3F36-G5003F3611421124000≈450≈500≈194YES
ETD54/28/19-3C903C90127280355005000±25%ungapped≈1800YES
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≈230YES
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YES
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ETD54/28/19-3F36-G5003F3612728035500≈590≈500≈210YES
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≈89YES
ETD59/31/22-3C90-G54003C9013936851500≈85≈5400≈25YES
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ETD59/31/22-3C97-G2003C9713936851500≈1900≈200
≈560YES
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