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PCB Mounted Transformers
Dimensions, Weight & Regulations
10 Pin bobbins are used for 1.2, 1.5, 3, 6, 12, 20 and 25VA transformers (6VA Imperial Bobbin)
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Laminations without fixing holes used for 1.2, 1.5, 3 and 6VA (Imperial Bobbin) |
Laminations with fixing holes used for 12, 20 and 25VA |
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12 Pin bobbins are used for 6, 9, 50, 60, 75 and 100VA transformers (6VA Metric Bobbin)
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Laminations without fixing holes used for 6VA (Metric Bobbin) and 9VA |
Laminations with fixing holes used for 50, 60, 75 and 100VA |
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| Rating | Dimensions (mm) | Weight (kg) | Regulation % | ||||||
|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | |||
| 1.2VA | 30 | 25 | 25 | 5.08 | 20.32 | 0.065 | 18 | ||
| 3VA | 38 | 32 | 30 | 5.08 | 25.4 | 0.120 | 20 | ||
| Metric 6VA | 42 | 35 | 32 | 5.08 | 25.4 | 0.155 | 18 | ||
| Imperial 6VA | 43 | 36 | 35 | 5.08 | 22.86 | 0.165 | 18 | ||
| 9VA | 48 | 40 | 37 | 5.08 | 27.5 | 0.215 | 15 | ||
| 12VA | 58 | 48 | 46 | 7.62 | 30.5 | 47.6 | 38.1 | 0.400 | 10 |
| 20VA | 58 | 48 | 52 | 7.62 | 30.5 | 47.6 | 38.1 | 0.450 | 10 |
| 25VA | 67 | 56 | 52 | 7.62 | 35.6 | 55.6 | 44.5 | 0.770 | 10 |
| 50VA | 77 | 64 | 58 | 7.2 | 40.7 | 63.5 | 50.8 | 1.000 | 10 |
| 60VA | 77 | 64 | 64 | 7.2 | 40.7 | 63.5 | 50.8 | 1.200 | 9 |
| 75VA | 77 | 64 | 70 | 7.2 | 40.7 | 63.5 | 50.8 | 1.300 | 8 |
| 100VA* | 86 | 72 | 64 | 7.2 | 45.8 | 71.5 | 57.2 | 1.400 | 8 |