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China split bobbin dual cavity transformer Bel Fuse DST-7-24 for printed circuit board power applications for sale

split bobbin dual cavity transformer Bel Fuse DST-7-24 for printed circuit board power applications

Price Negotiable
Price: Negotiable
MOQ: Negotiable
Delivery Time: Negotiable
Product Description

Product Overview

The Signal ST/DST Series Split/Tran Specialty Purpose & Class 2 Transformers are designed for printed circuit board mounting, featuring a split bobbin construction with dual cavities that provide superior isolation and low capacitive coupling. This design eliminates the need for an electrostatic shield. The transformers offer rigid pin construction for easier board insertion and enhanced reliability. They are suitable for a wide range of power applications from 1.1 VA to 36 VA and are available in single or dual primary configurations (115 V or 115/230 V, 50/60 Hz) with series or parallel secondary options.

Product Attributes

  • Brand: Signal
  • Series: ST / DST Series Split/Tran
  • Construction: Split Bobbin with Dual Cavity
  • Insulation System: Class F (155 C)
  • RoHS Compliant: Yes
  • 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 (#)
    • CSA certified as Inherently Limited (*)
    • CSA certified as Non Inherently Limited (**) - see recommended fuse rating table
    • UL Recognized UL5085-3, Inherently Limited (#) File # E116583
  • Custom Versions: Available upon request

Technical Specifications

Model Secondary RMS Rating Power (VA) Dimensions (L x W x H) Inches (mm) Weight lbs (kg) Mounting Holes Optional Mounting Hardware
ST-2-10**# / DST-2-10**# 10 VCT @ 0.11 A / 5 V @ 0.22 A 1.1 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 V @ 0.5 A 2.4 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 / 5 V @ 1.2 A 6 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) 1.06 (26.9) centers Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-10*# / DST-5-10*# 10 VCT @ 1.2 A / 5 V @ 2.4 A 12 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) 1.25 (31.8) centers 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 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) 1.50 (38.1) centers 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 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 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 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 / 6.3 V @ 0.4 A 2.4 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 / 6.3 V @ 1.0 A 6 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) 1.06 (26.9) centers Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-12*# / DST-5-12*# 12.6 VCT @ 1.0 A / 6.3 V @ 2.0 A 12 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) 1.25 (31.8) centers 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 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) 1.50 (38.1) centers 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 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 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 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 / 8 V @ 0.3 A 2.4 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 / 8 V @ 0.8 A 6 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) 1.06 (26.9) centers Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-16*# / DST-5-16*# 16 VCT @ 0.8 A / 8 V @ 1.6 A 12 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) 1.25 (31.8) centers 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 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) 1.50 (38.1) centers 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 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 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 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 / 10 V @ 0.24 A 2.4 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 / 10 V @ 0.6 A 6 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) 1.06 (26.9) centers Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-20*# / DST-5-20*# 20 VCT @ 0.6 A / 10 V @ 1.2 A 12 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) 1.25 (31.8) centers 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 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) 1.50 (38.1) centers 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 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 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 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 / 12 V @ 0.2 A 2.4 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 / 12 V @ 0.5 A 6 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) 1.06 (26.9) centers Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-5-24*# / DST-5-24*# 24 VCT @ 0.5 A / 12 V @ 1.0 A 12 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) 1.25 (31.8) centers 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 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) 1.50 (38.1) centers 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 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 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 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 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 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) 1.06 (26.9) centers 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 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) 1.25 (31.8) centers 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 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) 1.50 (38.1) centers 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 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 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 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 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 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) 1.06 (26.9) centers 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 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) 1.25 (31.8) centers 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 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) 1.50 (38.1) centers 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 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 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 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 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 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) 1.06 (26.9) centers 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 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) 1.25 (31.8) centers 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 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) 1.50 (38.1) centers 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 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 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 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 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 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) 1.06 (26.9) centers 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 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) 1.25 (31.8) centers 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 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) 1.50 (38.1) centers Nylon 4-40 x 1.37 (4-40 x 34.9)
ST-7-56 / DST-7-56 56 VCT @ 0.65 A / 28 V @ 1.3 A 36 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 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 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 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 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20) 1.06 (26.9) centers 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 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32) 1.25 (31.8) centers 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 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36) 1.50 (38.1) centers 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 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50) 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.


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Company Changsha Purple Horn E-Commerce Co., Ltd.
Location 2332 Kaibin Commercial Plaza, No. 419 Shaoshan Middle Road, Shazitang Street, Yuhua District, Changsha City, Hunan Province
Contact Person Sellina

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