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China Split Bobbin Dual Cavity Transformer with UL CSA Certifications Bel Fuse DST-3-12 Signal Transformer for sale

Split Bobbin Dual Cavity Transformer with UL CSA Certifications Bel Fuse DST-3-12 Signal Transformer

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, offering superior isolation and low capacitive coupling thanks to their dual cavity split bobbin construction. These transformers feature rigid pin construction for enhanced board insertion reliability. They are suitable for a wide range of power applications from 1.1 VA to 36 VA, with options for single or dual primaries (115 V or 115/230 V, 50/60 Hz) and series or parallel secondaries. The insulation system is Class F (155 C), and they meet stringent agency certifications including UL and CSA. Custom versions are available upon request.

Product Attributes

  • Brand: Signal Transformer (Bel Fuse)
  • 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, UL Recognized 506 / UL 5085-1, 2, CSA certified to C22.2 #66.1, cCSAus certified to C22.2 #66.3 / UL 5085-3

Technical Specifications

Part Number Power (VA) Secondary RMS Rating (Series) Secondary RMS Rating (Parallel) Primary Configuration Pin Configuration Dimensions (L x W x H) Inches (mm) Weight lbs (kg)
ST-2-10**# / DST-2-10**# 1.1 10 VCT @ 0.11 A 5 V @ 0.22 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08)
ST-3-10*# / DST-3-10*# 2.4 10 VCT @ 0.25 A 5 V @ 0.5 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11)
ST-4-10*# / DST-4-10*# 6 10 VCT @ 0.6 A 5 V @ 1.2 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20)
ST-5-10*# / DST-5-10*# 12 10 VCT @ 1.2 A 5 V @ 2.4 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32)
ST-6-10 / DST-6-10 20 10 VCT @ 2.0 A 5 V @ 4.0 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36)
ST-7-10 / DST-7-10 36 10 VCT @ 3.6 A 5 V @ 7.2 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50)
ST-2-12**# / DST-2-12**# 1.1 12.6 VCT @ 0.09 A 6.3 V @ 0.18 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08)
ST-3-12*# / DST-3-12*# 2.4 12.6 VCT @ 0.2 A 6.3 V @ 0.4 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11)
ST-4-12*# / DST-4-12*# 6 12.6 VCT @ 0.5 A 6.3 V @ 1.0 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20)
ST-5-12*# / DST-5-12*# 12 12.6 VCT @ 1.0 A 6.3 V @ 2.0 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32)
ST-6-12 / DST-6-12 20 12.6 VCT @ 1.6 A 6.3 V @ 3.2 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36)
ST-7-12 / DST-7-12 36 12.6 VCT @ 2.85 A 6.3 V @ 5.7 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50)
ST-2-16**# / DST-2-16**# 1.1 16 VCT @ 0.07 A 8 V @ 0.14 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08)
ST-3-16*# / DST-3-16*# 2.4 16 VCT @ 0.15 A 8 V @ 0.3 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11)
ST-4-16*# / DST-4-16*# 6 16 VCT @ 0.4 A 8 V @ 0.8 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20)
ST-5-16*# / DST-5-16*# 12 16 VCT @ 0.8 A 8 V @ 1.6 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32)
ST-6-16 / DST-6-16 20 16 VCT @ 1.25 A 8 V @ 2.5 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36)
ST-7-16 / DST-7-16 36 16 VCT @ 2.25 A 8 V @ 4.5 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50)
ST-2-20**# / DST-2-20**# 1.1 20 VCT @ 0.055 A 10 V @ 0.11 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08)
ST-3-20*# / DST-3-20*# 2.4 20 VCT @ 0.12 A 10 V @ 0.24 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11)
ST-4-20*# / DST-4-20*# 6 20 VCT @ 0.3 A 10 V @ 0.6 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20)
ST-5-20*# / DST-5-20*# 12 20 VCT @ 0.6 A 10 V @ 1.2 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32)
ST-6-20 / DST-6-20 20 20 VCT @ 1.0 A 10 V @ 2.0 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36)
ST-7-20 / DST-7-20 36 20 VCT @ 1.8 A 10 V @ 3.6 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50)
ST-2-24**# / DST-2-24**# 1.1 24 VCT @ 0.045 A 12 V @ 0.09 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08)
ST-3-24*# / DST-3-24*# 2.4 24 VCT @ 0.1 A 12 V @ 0.2 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11)
ST-4-24*# / DST-4-24*# 6 24 VCT @ 0.25 A 12 V @ 0.5 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20)
ST-5-24*# / DST-5-24*# 12 24 VCT @ 0.5 A 12 V @ 1.0 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32)
ST-6-24 / DST-6-24 20 24 VCT @ 0.8 A 12 V @ 1.6 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36)
ST-7-24 / DST-7-24 36 24 VCT @ 1.5 A 12 V @ 3.0 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50)
ST-2-28 / DST-2-28 1.1 28 VCT @ 0.04 A 14 V @ 0.08 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08)
ST-3-28 / DST-3-28 2.4 28 VCT @ 0.085 A 14 V @ 0.17 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11)
ST-4-28 / DST-4-28 6 28 VCT @ 0.2 A 14 V @ 0.4 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20)
ST-5-28 / DST-5-28 12 28 VCT @ 0.42 A 14 V @ 0.84 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32)
ST-6-28 / DST-6-28 20 28 VCT @ 0.7 A 14 V @ 1.4 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36)
ST-7-28 / DST-7-28 36 28 VCT @ 1.3 A 14 V @ 2.6 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50)
ST-2-36 / DST-2-36 1.1 36 VCT @ 0.03 A 18 V @ 0.06 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08)
ST-3-36 / DST-3-36 2.4 36 VCT @ 0.065 A 18 V @ 0.13 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11)
ST-4-36 / DST-4-36 6 36 VCT @ 0.17 A 18 V @ 0.34 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20)
ST-5-36 / DST-5-36 12 36 VCT @ 0.35 A 18 V @ 0.7 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32)
ST-6-36 / DST-6-36 20 36 VCT @ 0.55 A 18 V @ 1.1 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36)
ST-7-36 / DST-7-36 36 36 VCT @ 1.0 A 18 V @ 2.0 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50)
ST-2-48 / DST-2-48 1.1 48 VCT @ 0.023 A 24 V @ 0.046 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08)
ST-3-48 / DST-3-48 2.4 48 VCT @ 0.05 A 24 V @ 0.1 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11)
ST-4-48 / DST-4-48 6 48 VCT @ 0.125 A 24 V @ 0.25 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20)
ST-5-48 / DST-5-48 12 48 VCT @ 0.25 A 24 V @ 0.5 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32)
ST-6-48 / DST-6-48 20 48 VCT @ 0.4 A 24 V @ 0.8 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36)
ST-7-48 / DST-7-48 36 48 VCT @ 0.75 A 24 V @ 1.5 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50)
ST-2-56 / DST-2-56 1.1 56 VCT @ 0.02 A 28 V @ 0.04 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08)
ST-3-56 / DST-3-56 2.4 56 VCT @ 0.045 A 28 V @ 0.09 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11)
ST-4-56 / DST-4-56 6 56 VCT @ 0.11 A 28 V @ 0.22 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20)
ST-5-56 / DST-5-56 12 56 VCT @ 0.22 A 28 V @ 0.44 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32)
ST-6-56 / DST-6-56 20 56 VCT @ 0.35 A 28 V @ 0.7 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36)
ST-7-56 / DST-7-56 36 56 VCT @ 0.65 A 28 V @ 1.3 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50)
ST-2-120 / DST-2-120 1.1 120 VCT @ 0.01 A 60 V @ 0.02 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) 0.17 (0.08)
ST-3-120 / DST-3-120 2.4 120 VCT @ 0.02 A 60 V @ 0.04 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) 0.25 (0.11)
ST-4-120 / DST-4-120 6 120 VCT @ 0.05 A 60 V @ 0.1 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) 0.44 (0.20)
ST-5-120 / DST-5-120 12 120 VCT @ 0.1 A 60 V @ 0.2 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) 0.70 (0.32)
ST-6-120 / DST-6-120 20 120 VCT @ 0.16 A 60 V @ 0.32 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) 0.80 (0.36)
ST-7-120 / DST-7-120 36 120 VCT @ 0.3 A 60 V @ 0.6 A Single 115 V / Dual 115/230 V 6 Pin / 8 Pin 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) 1.1 (0.50)
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. Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. Optional mounting screws (ST-MS) and nuts (ST-MN) available from Signal.
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.

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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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