Cores listed in ascending order of A
Dimensions in bold type are in millimeters, italic numbers are nominal in inches.
| Physical and Magnetic Properties | ||||||
|---|---|---|---|---|---|---|
| Core Size | A | B | C | le (cm) | Ae(cm)2 | Ve(cm)3 |
| T-12-( ) | 3.18/.125 | 1.58/.062 | 1.27/.050 | .75 | .010 | .008 |
| T-16-( ) | 4.06/.160 | 1.98/.078 | 1.52/.060 | .93 | .015 | .014 |
| T-20-( ) | 5.1/.200 | 2.24/.088 | 1.78/.070 | 1.15 | .023 | .026 |
| T-25-( ) | 6.48/.255 | 3.05/.120 | 2.44/.096 | 1.50 | .037 | .055 |
| T-30-( ) | 7.8/.307 | 3.84/.151 | 3.25/.128 | 1.84 | .061 | .110 |
| T-37-( ) | 9.53/.375 | 5.21/.205 | 3.25/.128 | 2.31 | .064 | .147 |
| T-44-( ) | 11.2/.440 | 5.82/.229 | 4.04/.159 | 2.68 | .099 | .266 |
| T-50-( ) | 12.7/.500 | 7.7/.303 | 4.83/.190 | 3.19 | .112 | .358 |
| T-68-( ) | 17.3/.690 | 9.4/.370 | 4.83/.190 | 4.23 | .179 | .759 |
| T-80-( ) | 20.2/.795 | 12.6/.495 | 6.35/.250 | 5.14 | .231 | 1.19 |
| T-94-( ) | 23.9/.942 | 14.2/.560 | 7.93/.312 | 5.97 | .362 | 2.16 |
| T-106-( ) | 26.9/1.06 | 14.5/.570 | 11.1/.437 | 6.49 | .659 | 4.28 |
| T-130-( ) | 33.0/1.30 | 19.8/.780 | 11.1/.437 | 8.28 | .698 | 5.78 |
| T-157-( ) | 39.9/1.57 | 24.1/.950 | 14.5/.570 | 10.1 | 1.06 | 10.7 |
| T-184-( ) | 46.7/1.84 | 24.1/.950 | 18.0/.710 | 11.2 | 1.88 | 21.0 |
| T-200-( ) | 50.8/2.00 | 31.8/1.25 | 14.0/.550 | 13.0 | 1.27 | 16.4 |
| T-200A-( ) | 50.8/2.00 | 31.8/1.25 | 25.4/1.00 | 13.0 | 2.32 | 30.0 |
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