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China Specialty Purpose Transformers with Low Capacitive Coupling and Split Bobbin Bel Fuse ST-3-28 Signal for sale

Specialty Purpose Transformers with Low Capacitive Coupling and Split Bobbin Bel Fuse ST-3-28 Signal

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, utilizing a dual-cavity platform that provides superior isolation and low capacitive coupling. These transformers feature 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 built with a Class F (155C) insulation system. The series offers both single and dual primary configurations and can be wired in series or parallel for secondary outputs. Electrostatic shielding is not required due to the split bobbin construction.

Product Attributes

  • Brand: Signal (Bel Fuse)
  • Series: ST / DST Series Split/Tran
  • Type: Specialty Purpose & Class 2 Transformers
  • Construction: Split Bobbin
  • Insulation System: Class F, 155 C
  • 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
  • Compliance: RoHS Compliant
  • Customization: Custom versions available upon request.

Technical Specifications

Model VA Rating Secondary RMS Rating (Series) Secondary RMS Rating (Parallel) Primary Voltage Frequency Dielectric Strength (Hipot) Mounting Configuration Weight (lbs/kg)
ST-2-10 / DST-2-10 1.1 10 VCT @ 0.11 A 5 V @ 0.22 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.17 (0.08)
ST-3-10 / DST-3-10 2.4 10 VCT @ 0.25 A 5 V @ 0.5 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.25 (0.11)
ST-4-10 / DST-4-10 6 10 VCT @ 0.6 A 5 V @ 1.2 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.44 (0.20)
ST-5-10 / DST-5-10 12 10 VCT @ 1.2 A 5 V @ 2.4 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.70 (0.32)
ST-6-10 / DST-6-10 20 10 VCT @ 2.0 A 5 V @ 4.0 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.80 (0.36)
ST-7-10 / DST-7-10 36 10 VCT @ 3.6 A 5 V @ 7.2 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 1.1 (0.50)
ST-2-12 / DST-2-12 1.1 12.6 VCT @ 0.09 A 6.3 V @ 0.18 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.17 (0.08)
ST-3-12 / DST-3-12 2.4 12.6 VCT @ 0.2 A 6.3 V @ 0.4 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.25 (0.11)
ST-4-12 / DST-4-12 6 12.6 VCT @ 0.5 A 6.3 V @ 1.0 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.44 (0.20)
ST-5-12 / DST-5-12 12 12.6 VCT @ 1.0 A 6.3 V @ 2.0 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.70 (0.32)
ST-6-12 / DST-6-12 20 12.6 VCT @ 1.6 A 6.3 V @ 3.2 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.80 (0.36)
ST-7-12 / DST-7-12 36 12.6 VCT @ 2.85 A 6.3 V @ 5.7 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 1.1 (0.50)
ST-2-16 / DST-2-16 1.1 16 VCT @ 0.07 A 8 V @ 0.14 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.17 (0.08)
ST-3-16 / DST-3-16 2.4 16 VCT @ 0.15 A 8 V @ 0.3 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.25 (0.11)
ST-4-16 / DST-4-16 6 16 VCT @ 0.4 A 8 V @ 0.8 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.44 (0.20)
ST-5-16 / DST-5-16 12 16 VCT @ 0.8 A 8 V @ 1.6 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.70 (0.32)
ST-6-16 / DST-6-16 20 16 VCT @ 1.25 A 8 V @ 2.5 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.80 (0.36)
ST-7-16 / DST-7-16 36 16 VCT @ 2.25 A 8 V @ 4.5 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 1.1 (0.50)
ST-2-20 / DST-2-20 1.1 20 VCT @ 0.055 A 10 V @ 0.11 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.17 (0.08)
ST-3-20 / DST-3-20 2.4 20 VCT @ 0.12 A 10 V @ 0.24 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.25 (0.11)
ST-4-20 / DST-4-20 6 20 VCT @ 0.3 A 10 V @ 0.6 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.44 (0.20)
ST-5-20 / DST-5-20 12 20 VCT @ 0.6 A 10 V @ 1.2 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.70 (0.32)
ST-6-20 / DST-6-20 20 20 VCT @ 1.0 A 10 V @ 2.0 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.80 (0.36)
ST-7-20 / DST-7-20 36 20 VCT @ 1.8 A 10 V @ 3.6 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 1.1 (0.50)
ST-2-24 / DST-2-24 1.1 24 VCT @ 0.045 A 12 V @ 0.09 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.17 (0.08)
ST-3-24 / DST-3-24 2.4 24 VCT @ 0.1 A 12 V @ 0.2 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.25 (0.11)
ST-4-24 / DST-4-24 6 24 VCT @ 0.25 A 12 V @ 0.5 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.44 (0.20)
ST-5-24 / DST-5-24 12 24 VCT @ 0.5 A 12 V @ 1.0 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.70 (0.32)
ST-6-24 / DST-6-24 20 24 VCT @ 0.8 A 12 V @ 1.6 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.80 (0.36)
ST-7-24 / DST-7-24 36 24 VCT @ 1.5 A 12 V @ 3.0 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 1.1 (0.50)
ST-2-28 / DST-2-28 1.1 28 VCT @ 0.04 A 14 V @ 0.08 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.17 (0.08)
ST-3-28 / DST-3-28 2.4 28 VCT @ 0.085 A 14 V @ 0.17 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.25 (0.11)
ST-4-28 / DST-4-28 6 28 VCT @ 0.2 A 14 V @ 0.4 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.44 (0.20)
ST-5-28 / DST-5-28 12 28 VCT @ 0.42 A 14 V @ 0.84 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.70 (0.32)
ST-6-28 / DST-6-28 20 28 VCT @ 0.7 A 14 V @ 1.4 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.80 (0.36)
ST-7-28 / DST-7-28 36 28 VCT @ 1.3 A 14 V @ 2.6 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 1.1 (0.50)
ST-2-36 / DST-2-36 1.1 36 VCT @ 0.03 A 18 V @ 0.06 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.17 (0.08)
ST-3-36 / DST-3-36 2.4 36 VCT @ 0.065 A 18 V @ 0.13 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.25 (0.11)
ST-4-36 / DST-4-36 6 36 VCT @ 0.17 A 18 V @ 0.34 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.44 (0.20)
ST-5-36 / DST-5-36 12 36 VCT @ 0.35 A 18 V @ 0.7 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.70 (0.32)
ST-6-36 / DST-6-36 20 36 VCT @ 0.55 A 18 V @ 1.1 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.80 (0.36)
ST-7-36 / DST-7-36 36 36 VCT @ 1.0 A 18 V @ 2.0 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 1.1 (0.50)
ST-2-48 / DST-2-48 1.1 48 VCT @ 0.023 A 24 V @ 0.046 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.17 (0.08)
ST-3-48 / DST-3-48 2.4 48 VCT @ 0.05 A 24 V @ 0.1 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.25 (0.11)
ST-4-48 / DST-4-48 6 48 VCT @ 0.125 A 24 V @ 0.25 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.44 (0.20)
ST-5-48 / DST-5-48 12 48 VCT @ 0.25 A 24 V @ 0.5 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.70 (0.32)
ST-6-48 / DST-6-48 20 48 VCT @ 0.4 A 24 V @ 0.8 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.80 (0.36)
ST-7-48 / DST-7-48 36 48 VCT @ 0.75 A 24 V @ 1.5 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 1.1 (0.50)
ST-2-56 / DST-2-56 1.1 56 VCT @ 0.02 A 28 V @ 0.04 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.17 (0.08)
ST-3-56 / DST-3-56 2.4 56 VCT @ 0.045 A 28 V @ 0.09 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.25 (0.11)
ST-4-56 / DST-4-56 6 56 VCT @ 0.11 A 28 V @ 0.22 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.44 (0.20)
ST-5-56 / DST-5-56 12 56 VCT @ 0.22 A 28 V @ 0.44 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.70 (0.32)
ST-6-56 / DST-6-56 20 56 VCT @ 0.35 A 28 V @ 0.7 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.80 (0.36)
ST-7-56 / DST-7-56 36 56 VCT @ 0.65 A 28 V @ 1.3 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 1.1 (0.50)
ST-2-120 / DST-2-120 1.1 120 VCT @ 0.01 A 60 V @ 0.02 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.17 (0.08)
ST-3-120 / DST-3-120 2.4 120 VCT @ 0.02 A 60 V @ 0.04 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.25 (0.11)
ST-4-120 / DST-4-120 6 120 VCT @ 0.05 A 60 V @ 0.1 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.44 (0.20)
ST-5-120 / DST-5-120 12 120 VCT @ 0.1 A 60 V @ 0.2 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.70 (0.32)
ST-6-120 / DST-6-120 20 120 VCT @ 0.16 A 60 V @ 0.32 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 0.80 (0.36)
ST-7-120 / DST-7-120 36 120 VCT @ 0.3 A 60 V @ 0.6 A 115 V / 115/230 V 50/60 Hz 2500 Vrms 6 Pin (ST) / 8 Pin (DST) 1.1 (0.50)
Size (VA) Dimensions L x W x H (inches/mm) Mounting Hole Centers (inches/mm) Optional Mounting Screw & Nut
1.1 1.37 x 1.12 x 0.97 (34.9 x 28.6 x 24.6) - -
2.4 1.37 x 1.12 x 1.21 (34.9 x 28.6 x 30.8) - -
6 1.62 x 1.31 x 1.31 (41.3 x 33.3 x 33.3) 1.06 (26.9) Nylon 4-40 x 1.37 (4-40 x 34.9)
12 1.91 x 1.59 x 1.45 (48.4 x 40.4 x 36.9) 1.25 (31.8) Nylon 4-40 x 1.37 (4-40 x 34.9)
20 2.25 x 1.88 x 1.45 (57.2 x 47.8 x 36.9) 1.50 (38.1) Nylon 4-40 x 1.37 (4-40 x 34.9)
36 2.62 x 2.18 x 1.59 (66.7 x 55.5 x 40.4) 1.85 (47.0) Available: ST-MS (screw), ST-MN (nut). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws.
Recommended Secondary Fuse Values (Amps)
(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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