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www.pulseeng.com 42 LT2007 (12/09)
Part No. Part No.
Secondary RMS Rating
115V-6Pin 115/230V-8Pin
Series Parallel
ST2-10B41
1
DST2-10B41
1
10V C.T. @ 0.11A 5V @ 0.22A
ST3-10B1
1
DST3-10B1
1
10V C.T. @ 0.25A 5V @ 0.5A
ST4-10B2 DST4-10B2 10V C.T. @ 0.6A 5V @ 1.2A
ST5-10B3 DST5-10B3 10V C.T. @ 1.2A 5V @ 2.4A
ST6-10B4 DST6-10B4 10V C.T. @ 2A 5V @ 4A
ST7-10B51 DST7-10B51 10V C.T. @ 3.6A 5V @ 7.2A
ST2-12B42
1
DST2-12B42
1
12.6V C.T. @ 0.09A 6.3V @ 0.18A
ST3-12B5
1
DST3-12B5
1
12.6V C.T. @ 0.2A 6.3V @ 0.4A
ST4-12B6 DST4-12B6 12.6V C.T. @ 0.5A 6.3V @ 1.0A
ST5-12B7 DST5-12B7 12.6V C.T. @ 1.0A 6.3V @ 2.0A
ST6-12B8 DST6-12B8 12.6V C.T. @ 1.6A 6.3V @ 3.2A
ST7-12B52 DST7-12B52 12.6V C.T. @ 2.85A 6.3V @ 5.7A
ST2-16B43
1
DST2-16B43
1
16V CT. @ 0.07A 8V @ 0.14A
ST3-16B9
1
DST3-16B9
1
16V C.T.@ 0.15A 8V @ 0.3A
ST4-16B10 DST4-16B10 16V C.T.@ 0.4A 8V @ 0.8A
ST5-16B11 DST5-16B11 16V C.T.@ 0.8A 8V @ 1.6A
ST6-16B12 DST6-16B12 16V C.T.@ 1.25A 8V @ 2.5A
ST7-16B53 DST7-16B53 16V C.T.@ 2.25A 8V @ 4.5A
ST2-20B44
1
DST2-20B44
1
20V C.T. @ 0.055A 10V @ 0.11A
ST3-20B13
1
DST3-20B13
1
20V C.T. @ 0.12A 10V @ 0.24A
ST4-20B14 DST4-20B14 20V C.T. @ 0.3A 10V @ 0.6A
ST5-20B15 DST5-20B15 20V C.T. @ 0.6A 10V @ 1.2A
ST6-20B16 DST6-20B16 20V C.T. @ 1A 10V @ 2A
ST7-20B54 DST7-20B54 20V C.T. @ 1.8A 10V @ 3.6A
ST2-24B45
1
DST2-24B45
1
24V C.T. @ 0.045A 12V @ 0.09A
ST3-24B17
1
DST3-24B17
1
24V C.T. @ 0.1A 12V @ 0.2A
ST4-24B18 DST4-24B18 24V C.T. @ 0.25A 12V @ 0.5A
ST5-24B19 DST5-24B19 24V C.T. @ 0.5A 12V @ 1.0A
ST6-24B20 DST6-24B20 24V C.T. @ 0.8A 12V @ 1.6A
ST7-24B55 DST7-24B55 24V C.T. @ 1.5A 12V @ 3.0A
ST2-28B46 DST2-28B46 28V C.T. @ 0.04A 14V @ 0.08A
ST3-28B21 DST3-28B21 28V C.T. @ 0.085A 14V @ 0.17A
ST4-28B22 DST4-28B22 28V C.T. @ 0.2A 14V @ 0.4A
ST5-28B23 DST5-28B23 28V C.T. @ 0.42A 14V @ 0.84A
ST6-28B24 DST6-28B24 28V C.T. @ 0.7A 14V @ 1.4A
ST7-28B56 DST7-28B56 28V C.T. @ 1.3A 14V @ 2.6A
ST2-36B47 DST2-36B47 36V C.T. @ 0.03A 18V @ 0.06A
ST3-36B25 DST3-36B25 36V C.T. @ 0.065A 18V @ 0.13A
ST4-36B26 DST4-36B26 36V C.T. @ 0.17A 18V @ 0.34A
ST5-36B27 DST5-36B27 36V C.T. @ 0.35A 18V @ 0.7A
ST6-36B28 DST6-36B28 36V C.T. @ 0.55A 18V @ 1.1A
ST7-36B57 DST7-36B57 36V C.T. @1.0A 18V @ 2.0A
ST2-48B48 DST2-48B48 48V C.T. @ 0.023A 24V @ .046A
ST3-48B29 DST3-48B29 48V C.T. @ 0.05A 24V @ 0.1A
ST4-48B30 DST4-48B30 48V C.T. @ 0.125A 24V @ 0.25A
ST5-48B31 DST5-48B31 48V C.T. @ 0.25A 24V @ 0.5A
ST6-48B32 DST6-48B32 48V C.T. @ 0.4A 24V @ 0.8A
ST7-48B58 DST7-48B58 48V C.T. @ 0.75A 24V @ 1.5A
ST2-56B49 DST2-56B49 56V C.T. @ 0.02A 28V @ 0.04A
ST3-56B33 DST3-56B33 56V C.T. @ 0.045A 28V @ 0.09A
ST4-56B34 DST4-56B34 56V C.T. @ 0.11A 28V @ 0.22A
ST5-56B35 DST5-56B35 56V C.T. @ 0.22A 28V @ 0.44A
ST6-56B36 DST6-56B36 56V C.T. @ 0.35A 28V @ 0.7A
ST7-56B59 DST7-56B59 56V C.T. @ 0.65A 28V @ 1.3A
ST2-120B50 DST2-120B50 120V C.T. @ 0.01A 60V @ 0.02A
ST3-120B37 DST3-120B37 120V C.T. @ 0.02A 60V @ 0.04A
ST4-120B38 DST4-120B38 120V C.T. @ 0.05A 60V @ 0.1A
ST5-120B39 DST5-120B39 120V C.T. @ 0.1A 60V @ 0.2A
ST6-120B40 DST6-120B40 120V C.T. @ 0.16A 60V @ 0.32A
ST7-120B60 DST7-120B60 120V C.T. @ 0.3A 60V @ 0.6A
Mechanicals
Schematics
AGENCY
APPROVALS
n UL, 506, File E73539
n UL 1446, File E179499
n UL 1585, File E169010
Class 2 Component
Recognition
n CSA 22.2#66,
File LR68051-2
n UL Recognized Class B
1
UL 1585 approved, Class 2 - Not Wet, Class 3 - Wet
Dimensions (inches)
Size
VA
L W H A B C ML
Wt.
(lb.)
2 1.1 1.13 1.13 0.94 0.25 0.25 1.20 ---- 0.17
3 2.4 1.38 1.13 1.19 0.25 0.25 1.20 ---- 0.25
4 6.0 1.63 1.31 1.31 0.25 0.35 1.28 1.06 0.44
5 12 1.86 1.56 1.44 0.30 0.40 1.41 1.25 0.70
6 20 2.25 1.86 1.44 0.30 0.40 1.60 1.50 0.80
7* 36 2.63 2.19 1.56 0.40 0.40 1.80 ---- 1.10
*Size 7 has 4 MTG. holes on 2.188” x 1.75” centers.
NOTE: Pins 2 and 3 are omitted
on single primary versions.
LAMINATED TRANSFORMERS
Low Frequency, Open-Style Laminated,
Split Bobbin, Horizontal Plug-In Series
High (2500V) isolation; 2500VRMS HIPOT
Non-concentric design - eliminates ESS
No crossover between primary/secondary winding leads
Vacuum impregnated - withstands board washing
systems and reduces audible noise
Baked resin provides an environmentally-resistant finish
Rugged construction - no additional mounting hardware
Universal design, fits industry-standard footprints
Available in single or dual primary
