Transformer Bobbins

transformer-bobbinWe offer a comprehensive line of Standard Bobbins that are available in a large variety of sizes and flange designs. This allows us to service you better by having industry standard sizes and flanges available for immediate shipment. Don’t see the size you need? Don’t worry, we do custom molding too..

Transformer Bobbins
Lamination Size Part Number Type
EE 28-29 3-1019
EI-187 3-1008
EI-187 Slotted 3-1009
EI-187 X 187 Slotted 3-1407
EE 24-25 3-1005
EE 24-25 X .25 3-1403
EE-24-25 X .25 Slotted 3-1402
EE 24-25 X 3/8 3-1018
EI-375 X 1/4 3-1137
EI-375 X 3/8 Slotted 3-1405
EI-375 X 3/8 Slotted 3-1406
EI-375 X 3/8 3-1006
EI-21 X 1/2 3-1004
EI-21 X 1/2 3-1398
EI-21 X 1/2 3-Flange 3-2242
EI-21 X 1/2 Slotted 3-3372
EI-21 X 1/2 3-Flange Slotted 3-3373
EI-21 X 5/8 3-1011
EI-21 X 1 3-1027
EI-625 X 1/2 Slotted 3-1471
EI-625 X 5/8 3-1031
EI-625 X 5/8 3-Flange 3-3322
EI-625 X 5/8 Slotted 3-1409
EI-625 X 5/8 Slotted 3-1410
EI-625 X 5/8 Slotted 3-1411
EI-625 X 5/8 Slotted 3-1412
EI-625 X 5/8 Slotted 3-1413
EI-625 X 3/4 3-1032
EI-625 X 3/4 3-Flange 3-3323
EI-625 X 3/4 Slotted 3-1414
EI-75 X 3/4 3-1155
EI-75 X 3/4 3-Flange 3-3324
EI-75 X 3/4 Slotted 3-1260
EI-75 X 3/4 Slotted 3-2908
EI-75 X 3/4 3-Flange Slotted 3-2909
EI-75 X 1.00 3-3939
EI-75 X 1.00 3-Flange 3-3940
EI-75 X 1.00 3-Flange Offset 3-3942
EI-87 X 7/8 3-1249
EI-87 X 7/8 3-Flange 3-3744
EI-87 X 1.00 3-2557
EI-87 X 1.00 3-Flange 3-2558
EI-100 X1.0 3-3181
EI-100 X1.0 3-Flange 3-3381
EI-100 X 1.00 Slotted 3-3178
EI-100 X 1.25 5-2505
EI-100 X 1.25 3-Flange 5-2504
EI-100 X 1.50 5-3165
EI-100 X 1.50 3-Flange Slotted 5-3166
EI-112 X 1.125 5-3584
EI-112 X 1.125 3-Flange 5-3585
EI-112 X 1.375 5-3182
EI-112 X 1.375 Slotted 5-3183
EI-125 X 1.25 5-3382
EI-125 X 1.25 Slotted 5-3577
EI-125 X 1.25 3-Flange 5-3383
EI-125 X 1.25 3-Flange Slotted 5-3587
EI-125 X 1.5 5-3167
EI-125 X 1.5 3-Flange 5-3012
EI-125 X 1.5 3-Flange Slotted 5-3168
EI-125 X 1.75 3-Flange Slotted 5-3807
EI-125 X 1.875 5-3187
EI-125 X 1.875 Slotted 5-3188
EI-125 X 2.0 Slotted 5-3808
EI-125 X 2.0 3-Flange Slotted 5-3806
EI-138 X 1.38 5-3724
EI-138 X 1.38 3-Flange 5-3725
EI-138 X 2.0 5-3140
EI-138 X 2.0 3-Flange 5-3683
EI-138 X 2.75 5-3000
EI-150 X 1.50 5-3379
EI-150 X 1.50 Slotted 5-3578
EI-150 X 1.50 3-Flange 5-3380
EI-150 X 1.50 3-Flange Slotted 5-3588
EI-150 X 1.75 5-3062
EI-150 X 2.0 5-3169
EI-150 X 2.0 Slotted 5-3643
EI-150 X 2.0 3-Flange Slotted 5-3170
EI-150 X 2.5 5-3092
EI-175 SQR 5-2681
EI-175 SQR 3-Flange 5-2682
EI-175 X 2.0 5-3882
EI-175 X 2.25 Slotted 5-3883
EI-175 X 2.5 5-3184
EI-175 X 2.5 3-Flange 5-3185
EI-175 X 3.0 5-3301
EI-175 X 3.0 3-Flange 5-3300
EI-175 X 4.0 5-3051
EI-175 X 4.0 3-Flange 5-3583
EI-212 X 2.15 3-Flange 228-2969
EI-212 X 2.5 3-Flange 228-2970