Section 13. Toroids. Parylene C is a trademark of Union-Carbide Corp. Material R P F J W H. Color Blue Green White Red Yellow Purple 13.

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Section 13. Toroids Ferrite toroids offer high magnetic efficiency as there is no air gap, and the cross sectional area is uniform. vailable in many sizes ( s from.100" to 3.

1 Section 13. Toroids Ferrite toroids offer high magnetic efficiency as there is no air gap, and the cross sectional area is uniform. vailable in many sizes ( s from.100" to 3.375"), and materials (permeabilities from 750 to 15,000), this section lists the common ones used in the industry. For other sizes, contact the factory. HIGH PERMEBILITY PPLICTIONS. High inductance, high impedance over wide frequency ranges and low loss factor make J, W and H toroids excellent choices for common mode chokes, broadband transformers, pulse transformers and current transformers. POWER PPLICTIONS. Low losses, high B sat, minimum losses at high temperature and high Curie temperature make R, P, K, and F toroids excellent choices for high frequency transformers. GFI PPLICTIONS. Special sizes in J and B materials are available for ground fault interrupter applications. B is a 5000µ material and has a minimum permeability of 4000 over a temperature range of -35 C to +70 C. COTINGS In order to increase winding ease and improve voltage breakdown, the cores can be coated. 1. Parylene C. This vacuum-deposited material has a uniform coating (including edges) with a thickness of.0005" to.002", a smooth winding surface, and good moisture resistance to organic solvents and acid bases. The electrical characteristics are superior to other coatings. It is available in s up to.500. Continuous maximum rating is 130 C. (Minimum inductance 5% lower that listed.) For Parylene, add Y to part number. 2. Grey coating. This inexpensive coating is typically.004" to.008" thick, provides good adhesion, smooth winding surface, and good resistance to moisture and organic solvents. Good for continuous operation from -65 C to +155 C, this coating is available in sizes.375" and larger. See Specifying coating below. For grey coating, add Z to part number. VOLTGE BREKDOWNS The following are voltage breakdowns for the above coatings (wire to wire). See page 3.1, how measured. Parylene C: 600 volts min. (Minimum inductance 5% lower than listed) Grey coating: 1000 volts min. SPECIL REQUIREMENTS Color coding. Toroids (and other cores) can be marked with a color code to distinguish different materials. When ordering, add -CC at the end of the part number. Codes are: Material R P F J W H Color Blue Green White Red Yellow Purple High Voltage. Voltage breakdown, higher than the standard guarantee, can be provided. Dimensional tolerances are relaxed to allow for the added coating. Contact the factory for a special specification. Specifying coating. Grey coating may be polyester or nylon, in order to minimize cost. Polyester is rated to 200 C. Nylon exhibits outstanding solvent resistance. Nylon is available only in sizes to as listed in this catalog. Within this range, add -PO at the end of the part number to specify polyester only or add -NO at the end of the part number to specify nylon only. Parylene C is a trademark of Union-Carbide Corp. 13.1

2 TORIOD DT (Contact Factory for other available sizes) available coatings 13.2 NO. (OD) MECHNICL DIMENSIONS (Note 1 P13.3) FOR PREFERRED S, SEE INSIDE BCK COVER (2) L (mh/1000 TURNS) INCHES MILLIMETERS POWER MTERILS TELECOM MTERILS B (ID) C HGT. (2) (OD) TC ,360 5,830 7, TC ,700 4,030 B (ID) C HGT. K 1500µ ±25% R 2300µ ±25% P 2500µ ±25% F 3000µ ±20% TC TC TC TC TC TC , TC TC ,020 1, TC ,920 2,088 2, ,670 1, TC ,730 1,884 2, ,510 1, TC ,000 1,095 1, , TC ,510 1,650 1, ,315 1, TC ,600 2,820 3, ,255 2, TC TC ,090 1,190 1, , TC ,360 1,485 1, ,188 1, TC ,080 1,660 1,805 2, ,444 1, TC ,240 1,356 1, ,085 1, TC ,020 1,111 1, , TC ,040 1,130 1, , TC ,080 1, TC ,260 1,375 1, ,100 1, TC ,830 2,810 3,050 3, ,440 2, TC ,380 1,500 1, ,200 1, TC ,260 1,930 2,100 2, ,680 1, TC ,380 1,510 1, ,208 1, TC ,120 1,720 1,875 2, ,500 1, TC ,810 2,770 3,020 3, ,416 2, TC ,170 1,800 1,958 2, ,565 1, TC ,450 2,220 2,420 2, ,930 2, TC ,450 1,585 1, ,268 1, TC ,930 2,960 3,222 3, ,579 2, TC ,860 2,850 3,100 3, ,480 2, TC ,480 1,610 1, ,290 1, TC ,030 2,210 2, ,770 2, TC ,100 3,366 4,040 1,011 2,696 3, TC ,020 2,200 2, ,760 2, TC ,850 4,185 5,020 1,255 3,345 3, TC ,060 8,762 10, TC ,710 2,950 3, TC ,790 3,032 3, TC ,420 3,718 4, TC ,430 5,900 7, TC ,140 3,491 4, TC ,770 6,270 7, TC ,700 4,024 4, TC ,510 2,726 3,310 4, µ ±20% D 200µ ±20% G 2300µ ±20% L values based on 5 gauss in a de-gaussed state.

3 L (mh/1000 TURNS) HIGH PERMEBILITY MGNETIC DIMENSIONS MTERILS J W H WINDOW CORE Wac 5000µ 10,000 µ 15,000µ WGT. NO. ± 20% ± 30% ± 30% Ie e Ve RE (Note 3) (gms) (cm) (cm²) (cm³) (cm²) (cm 4) TC 875 1,750 2, TC 825 1,650 2, TC 735 1,470 2, TC 1,475 2,950 4, TC 950 1,900 2, TC 1,900 3,800 5, TC 980 1,960 2, TC 2,040 4,080 6, TC 4,175 8,350 12, TC 3,765 7,530 11, TC 2,196 4,392 6, TC 3,308 6,616 9, TC 5,640 11,280 16, TC 1,488 2,976 4, TC 2,380 4,760 7, TC 2,968 5,936 8, TC 3,612 7,224 10, TC 2,715 5,430 8, TC 2,295 4,590 6, TC 2,260 4,520 6, TC 2,160 4,320 6, TC 2,760 5,520 8, TC 6,115 12,200 18, TC 2,800 5,600 8, TC 4,200 8,400 12, TC 3,020 6,040 9, TC 3,700 7,400 11, TC 6,040 12,080 18, TC 3,913 7,825 11, TC 4,830 9,660 14, TC 3,170 6,340 9, TC 6,447 12,894 19, TC 6,200 12, TC 3,220 6, TC 4,543 9, TC 6,736 13, TC 4,400 8, TC 8,365 16, TC 16,730 33, TC 11,600 23, TC 8,075 16, TC 5,900 11, TC 6,065 12, TC 7,435 14, TC 11,800 23, TC 6,845 13, TC 12,500 25, TC 8,140 16, TC 5,520 11, TO ORDER TOROIDS (a) dd the material designationletter before the part number (e.g., F TC). (b) For Parylene coated cores, add Y to part number (YF TC). For grey coated cores, add Z to part number (ZF TC). (c) 0 in part number = bare core (0F TC). (d) Suffixes for the following requirements may be added as shown: CC= core Color Coded PO= Polyester Only toroid coating NO= Nylon Only toroid coating For example, ZF TC-PO FOR PREFERRED S, SEE INSIDE BCK COVER NOTES 1. For the cores listed here, dimensional tolerances for bare and coated cores are on pages Page 13.6 also lists guidelines for dimensional tolerances of all toroids. 2. Other core heights are available on special request. 3. Product of window area and core area. 13.3

4 Ferrite Toroids (Bare Core) Limiting Dimensions Inches Millimeters Materials other than W and H W and H Materials Materials other than W and H W and H Materials NO TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC

5 Ferrite Toroids (Z Coated) Limiting Dimensions Inches Millimeters Materials other than W and H W and H Materials Materials other than W and H W and H Materials NO TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC See page 13.6 for Y coated cores 13.5

6 Ferrite Toroids (Y Coated) Limiting Dimensions Inches Millimeters Materials other than W and H W and H Materials Materials other than W and H W and H Materials NO TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC FOR THESE CORE OD'S up to.099".100" -.199".200" -.299".300" -.599".600" -.999" 1.000" " 1.500" " 2.000" " 2.500" " 3.000" " DIMENSIONL TOLERNCE GUIDELINES OD and ID TOLERNCES FOR HEIGHT TOLERNCES (1)(2) RE THESE RE CORE Mat'ls other than W&H HEIGHTS Mat'ls other than W&H W&H Mat'ls W&H Mat'ls ±.005" ±.005" Up to.099" ±.003" ±.007" ±.008" ±.008".100" -.199" ±.005" ±.010" ±.011" ±.011".200" -.299" ±.007" ±.011" ±.010" ±.015".300" -.599" ±.010" ±.015" ±.015" ±.023".600" -.999" ±.015" ±.023" ±.020" ±.030" 1.000" " ±.020" ±.030" ±.030" ±.045" 1.500" " ±.030" ±.045" ±.035" ±.053" (1) For W and H material cores 2.8" and larger in OD, ±.040" ±.060" add 50% to height tolerance. ±.050" ±.075" (2) For cores <.300" OD, use W & H column. FOR COTED CORES: COTING SIZE LIMITS: llow.003" for Y finish. Parylene(Y) and smaller llow.015" for Z finish. (Minimum inductance 5% lower than listed) llow.030" for voltages above 1000 up to Grey (Z) and larger 13.6

7 Toroid Mounts These vertical mount accessories are designed to accommodate a variety of toroidal core sizes on to printed circuit board or other assemblies. (Check factory for new parts not shown here) TV-B For use with P/N s 41206TC TC or toroid sizes with an =.500" -.870" TV-B2908-T For use with P/N s 42507TC TC or toroid sizes with an =.81" TV-B3610-F For use with P/N s 42908TC TC or toroid sizes with an = 1.142" " Material: Phenolic UL 94 VO rated Pin Material: CP Wire Pin Diameter:.039" DIMENSIONS (IN.) NUMBER TV-B (6 pins) TV-B2908-T (10 pins) TV-B3610-F (14 pins) NOM B NOM C REF D NOM E REF F TYP G TYP G H NOM J REF K REF G

8 Toroid Mounts FIGURE 1 For use with core sizes (outside diameter) from.50" to 1.00" Material: Nylon UL 94 VO Rated Pin Material: CP Wire Pin Diameter:.040" FIGURE 2 For use with core sizes (outside diameter) from.81" to 2.8" Material: Nylon UL 94 VO Rated Pin Material: CP Wire Pin Diameter:.050" DIMENSIONS (IN.) (NOM.) NUMBER FIG. B C E F G H J For Core TV-H TV-H TV-H TV-H TV-H " ".81" " 1.25" " 1.5" - 2.5" 1.9" - 2.8" SURFCE MOUNT HEDERS Several surface mount headers are available. See pages 6.6, 6.9 and 6.12 for sizes and dimensions. 13.8

9 Toroid Cups and Headers Figure 1 Material: L.C.P. Figure 2 Material: Phenolic Figure 3 Material: Phenolic Figure 4 Material: L.C.P. ll parts - UL 94 V-O rated Pin Materials - Phosphor bronze DIMENSIONS IN INCHES B C D E F G H J K L M For Core NUMBER FIG. MX. MX. NOM. TYP. NOM. MX. MIN. NOM. MIN. MX. NOM. MIN. SM-C <.155 SM-C <.250 SM-H <.200 SM-H <

Section 13. Toroids COATINGS

Section 13. Toroids COATINGS Section 13. Toroids Ferrite toroids offer high magnetic efficiency as there is no air gap, and the cross sectional area is uniform. Available in many sizes ('s from.100" to 3.375") and materials (permeabilities