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quality Class F insulation system transformer Bel Fuse ST-6-24 with split bobbin construction and multiple voltage options factory
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quality Class F insulation system transformer Bel Fuse ST-6-24 with split bobbin construction and multiple voltage options factory
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Specifications
Secondary Winding:
2
Isolation Voltage(Vrms):
2.5kV
Primary Winding(s):
1
Secondary Side Voltage:
12V;24V
Output Current:
1.6A;800mA
Primary Side Voltage:
115V
Mfr. Part #:
ST-6-24
Package:
Through Hole-6P,57.2x47.6mm
Key Attributes
Model Number: ST-6-24
Product Description

Product Overview

The Signal ST/DST Series Split/Tran Specialty Purpose & Class 2 Transformers are designed for printed circuit board mounting, offering superior isolation and low capacitive coupling thanks to their dual cavity platform. Featuring rigid pin construction for enhanced board insertion reliability, these transformers are suitable for a wide range of power applications from 1.1 VA to 36 VA. They are built with a Class F (155C) insulation system and are available in single or dual primary configurations (115V or 115/230V, 50/60 Hz) with series or parallel secondary options. The split bobbin construction eliminates the need for an electrostatic shield. These transformers are RoHS compliant and carry multiple agency certifications.

Product Attributes

  • Brand: Signal Transformer (belfuse.com/signal)
  • Series: ST / DST Series Split/Tran
  • Construction: Split Bobbin with Dual Cavity Platform
  • Insulation System: Class F, 155C
  • Compliance: RoHS Compliant
  • Agency Certifications:
    • UL 1446 Class F insulation systems, File # E66312
    • UL Recognized 506 / UL 5085-1, 2, File # E63829
    • CSA certified to C22.2 #66.1, File # 221070
    • cCSAus certified to C22.2 #66.3 / UL 5085-3, File #221070
    • Class 2 - marked with (*) or (**) or (#)
    • * CSA certified as Inherently Limited
    • ** CSA certified as Non Inherently Limited
    • # UL Recognized UL5085-3, Inherently Limited File # E116583

Technical Specifications

Part Number Secondary RMS Rating VA Rating Primary Configuration Secondary Configuration Dimensions (L x W x H) Inches (mm) Weight lbs (kg) Mounting Hardware
ST-2-10**# / DST-2-10**# 10 VCT @ 0.11 A / 5 V @ 0.22 A 1.1 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08) -
ST-3-10*# / DST-3-10*# 10 VCT @ 0.25 A (5) / 5 V @ 0.5 A (9) 2.4 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11) -
ST-4-10*# / DST-4-10*# 10 VCT @ 0.6 A (9) / 5 V @ 1.2 A (11) 6 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-10*# / DST-5-10*# 10 VCT @ 1.2 A (11) / 5 V @ 2.4 A (13) 12 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-6-10 / DST-6-10 10 VCT @ 2.0 A / 5 V @ 4.0 A 20 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-7-10 / DST-7-10 10 VCT @ 3.6 A / 5 V @ 7.2 A 36 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 4 mounting holes on 2.18 x 1.75 centers for #6 screws. ST-MS (screw) and ST-MN (nut) available.
ST-2-12**# / DST-2-12**# 12.6 VCT @ 0.09 A / 6.3 V @ 0.18 A 1.1 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08) -
ST-3-12*# / DST-3-12*# 12.6 VCT @ 0.2 A (4) / 6.3 V @ 0.4 A (8) 2.4 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11) -
ST-4-12*# / DST-4-12*# 12.6 VCT @ 0.5 A (9) / 6.3 V @ 1.0 A (11) 6 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-12*# / DST-5-12*# 12.6 VCT @ 1.0 A (11) / 6.3 V @ 2.0 A (13) 12 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-6-12 / DST-6-12 12.6 VCT @ 1.6 A / 6.3 V @ 3.2 A 20 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-7-12 / DST-7-12 12.6 VCT @ 2.85 A / 6.3 V @ 5.7 A 36 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 4 mounting holes on 2.18 x 1.75 centers for #6 screws. ST-MS (screw) and ST-MN (nut) available.
ST-2-16**# / DST-2-16**# 16 VCT @ 0.07 A / 8 V @ 0.14 A 1.1 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08) -
ST-3-16*# / DST-3-16*# 16 VCT @ 0.15 A (3) / 8 V @ 0.3 A (6) 2.4 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11) -
ST-4-16*# / DST-4-16*# 16 VCT @ 0.4 A (7) / 8 V @ 0.8 A (10) 6 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-16*# / DST-5-16*# 16 VCT @ 0.8 A (10) / 8 V @ 1.6 A (12) 12 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-6-16 / DST-6-16 16 VCT @ 1.25 A / 8 V @ 2.5 A 20 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-7-16 / DST-7-16 16 VCT @ 2.25 A / 8 V @ 4.5 A 36 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 4 mounting holes on 2.18 x 1.75 centers for #6 screws. ST-MS (screw) and ST-MN (nut) available.
ST-2-20**# / DST-2-20**# 20 VCT @ 0.055 A / 10 V @ 0.11 A 1.1 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08) -
ST-3-20*# / DST-3-20*# 20 VCT @ 0.12 A (2) / 10 V @ 0.24 A (5) 2.4 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11) -
ST-4-20*# / DST-4-20*# 20 VCT @ 0.3 A (6) / 10 V @ 0.6 A (9) 6 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-20*# / DST-5-20*# 20 VCT @ 0.6 A (9) / 10 V @ 1.2 A (11) 12 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-6-20 / DST-6-20 20 VCT @ 1.0 A / 10 V @ 2.0 A 20 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-7-20 / DST-7-20 20 VCT @ 1.8 A / 10 V @ 3.6 A 36 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 4 mounting holes on 2.18 x 1.75 centers for #6 screws. ST-MS (screw) and ST-MN (nut) available.
ST-2-24**# / DST-2-24**# 24 VCT @ 0.045 A / 12 V @ 0.09 A 1.1 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08) -
ST-3-24*# / DST-3-24*# 24 VCT @ 0.1 A (1) / 12 V @ 0.2 A (4) 2.4 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11) -
ST-4-24*# / DST-4-24*# 24 VCT @ 0.25 A (5) / 12 V @ 0.5 A (9) 6 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-24*# / DST-5-24*# 24 VCT @ 0.5 A (9) / 12 V @ 1.0 A (11) 12 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-6-24 / DST-6-24 24 VCT @ 0.8 A / 12 V @ 1.6 A 20 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-7-24 / DST-7-24 24 VCT @ 1.5 A / 12 V @ 3.0 A 36 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 4 mounting holes on 2.18 x 1.75 centers for #6 screws. ST-MS (screw) and ST-MN (nut) available.
ST-2-28 / DST-2-28 28 VCT @ 0.04 A / 14 V @ 0.08 A 1.1 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08) -
ST-3-28 / DST-3-28 28 VCT @ 0.085 A / 14 V @ 0.17 A 2.4 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11) -
ST-4-28 / DST-4-28 28 VCT @ 0.2 A / 14 V @ 0.4 A 6 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-28 / DST-5-28 28 VCT @ 0.42 A / 14 V @ 0.84 A 12 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-6-28 / DST-6-28 28 VCT @ 0.7 A / 14 V @ 1.4 A 20 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-7-28 / DST-7-28 28 VCT @ 1.3 A / 14 V @ 2.6 A 36 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 4 mounting holes on 2.18 x 1.75 centers for #6 screws. ST-MS (screw) and ST-MN (nut) available.
ST-2-36 / DST-2-36 36 VCT @ 0.03 A / 18 V @ 0.06 A 1.1 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08) -
ST-3-36 / DST-3-36 36 VCT @ 0.065 A / 18 V @ 0.13 A 2.4 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11) -
ST-4-36 / DST-4-36 36 VCT @ 0.17 A / 18 V @ 0.34 A 6 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-36 / DST-5-36 36 VCT @ 0.35 A / 18 V @ 0.7 A 12 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-6-36 / DST-6-36 36 VCT @ 0.55 A / 18 V @ 1.1 A 20 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-7-36 / DST-7-36 36 VCT @ 1.0 A / 18 V @ 2.0 A 36 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 4 mounting holes on 2.18 x 1.75 centers for #6 screws. ST-MS (screw) and ST-MN (nut) available.
ST-2-48 / DST-2-48 48 VCT @ 0.023 A / 24 V @ 0.046 A 1.1 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08) -
ST-3-48 / DST-3-48 48 VCT @ 0.05 A / 24 V @ 0.1 A 2.4 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11) -
ST-4-48 / DST-4-48 48 VCT @ 0.125 A / 24 V @ 0.25 A 6 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-48 / DST-5-48 48 VCT @ 0.25 A / 24 V @ 0.5 A 12 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-6-48 / DST-6-48 48 VCT @ 0.4 A / 24 V @ 0.8 A 20 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-7-48 / DST-7-48 48 VCT @ 0.75 A / 24 V @ 1.5 A 36 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 4 mounting holes on 2.18 x 1.75 centers for #6 screws. ST-MS (screw) and ST-MN (nut) available.
ST-2-56 / DST-2-56 56 VCT @ 0.02 A / 28 V @ 0.04 A 1.1 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08) -
ST-3-56 / DST-3-56 56 VCT @ 0.045 A / 28 V @ 0.09 A 2.4 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11) -
ST-4-56 / DST-4-56 56 VCT @ 0.11 A / 28 V @ 0.22 A 6 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-56 / DST-5-56 56 VCT @ 0.22 A / 28 V @ 0.44 A 12 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-6-56 / DST-6-56 56 VCT @ 0.35 A / 28 V @ 0.7 A 20 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-7-56 / DST-7-56 56 VCT @ 0.65A / 28 V @ 1.3 A 36 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 4 mounting holes on 2.18 x 1.75 centers for #6 screws. ST-MS (screw) and ST-MN (nut) available.
ST-2-120 / DST-2-120 120 VCT @ 0.01 A / 60 V @ 0.02 A 1.1 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08) -
ST-3-120 / DST-3-120 120 VCT @ 0.02 A / 60 V @ 0.04 A 2.4 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11) -
ST-4-120 / DST-4-120 120 VCT @ 0.05 A / 60 V @ 0.1 A 6 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-120 / DST-5-120 120 VCT @ 0.1 A / 60 V @ 0.2 A 12 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-6-120 / DST-6-120 120 VCT @ 0.16 A / 60 V @ 0.32 A 20 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-7-120 / DST-7-120 120 VCT @ 0.3 A / 60 V @ 0.6 A 36 Single 115 V (ST) / Dual 115/230 V (DST) Series / Parallel 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 4 mounting holes on 2.18 x 1.75 centers for #6 screws. ST-MS (screw) and ST-MN (nut) available.
General Specifications:
Power: 1.1 VA to 36 VA
Dielectric Strength: 2500 Vrms Hipot
Primaries: Single or dual primaries, 115 V or 115/230 V, 50/60 Hz
Secondaries: Series or parallel
Electrostatic Shield: Not necessary, split bobbin construction
Insulation System: Class F, 155 C
Mounting Hardware: See chart
Recommended Secondary Fuse Values: (1) 0.125 A, (2) 0.15 A, (3) 0.25 A, (4) 0.3 A, (5) 0.375 A, (6) 0.4 A, (7) 0.5 A, (8) 0.6 A, (9) 0.75 A, (10) 1.0 A, (11) 1.5 A, (12) 2.0 A, (13) 3.0 A

Specifications subject to change without notice. 2020 Signal Transformer


2411272143_Bel-Fuse-ST-6-24_C17493082.pdf

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