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China Dual Cavity Split Bobbin Transformer Bel Fuse DST-4-12 Signal Transformer Series UL CSA and RoHS Certified for sale

Dual Cavity Split Bobbin Transformer Bel Fuse DST-4-12 Signal Transformer Series UL CSA and RoHS Certified

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 with a split bobbin, dual cavity platform to provide 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 applications requiring high isolation and efficient power conversion, with options for single or dual primaries and series or parallel secondaries. The series is UL, CSA, and cCSAus certified, and RoHS compliant.

Product Attributes

  • Brand: Signal Transformer
  • Series: ST / DST Series Split/Tran
  • Construction: Split Bobbin, Dual Cavity
  • Insulation System: Class F, 155 C
  • Compliance: RoHS Compliant
  • 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

Model Power (VA) Secondary RMS Rating (Series) Secondary RMS Rating (Parallel) Primary Voltage Frequency (Hz) Dielectric Strength (Vrms Hipot) Dimensions (L x W x H) (inches) Weight (lbs) Mounting
ST-2-10**# 1.1 10 VCT @ 0.11 A 5 V @ 0.22 A 115 V 50/60 2500 1.37 x 1.12 x 0.97 0.17 6 Pin
DST-2-10**# 1.1 10 VCT @ 0.11 A 5 V @ 0.22 A 115/230 V 50/60 2500 1.37 x 1.12 x 0.97 0.17 8 Pin
ST-3-10*# 2.4 10 VCT @ 0.25 A 5 V @ 0.5 A 115 V 50/60 2500 1.37 x 1.12 x 1.21 0.25 6 Pin
DST-3-10*# 2.4 10 VCT @ 0.25 A 5 V @ 0.5 A 115/230 V 50/60 2500 1.37 x 1.12 x 1.21 0.25 8 Pin
ST-4-10*# 6 10 VCT @ 0.6 A 5 V @ 1.2 A 115 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 6 Pin
DST-4-10*# 6 10 VCT @ 0.6 A 5 V @ 1.2 A 115/230 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 8 Pin
ST-5-10*# 12 10 VCT @ 1.2 A 5 V @ 2.4 A 115 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 6 Pin
DST-5-10*# 12 10 VCT @ 1.2 A 5 V @ 2.4 A 115/230 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 8 Pin
ST-6-10 20 10 VCT @ 2.0 A 5 V @ 4.0 A 115 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 6 Pin
DST-6-10 20 10 VCT @ 2.0 A 5 V @ 4.0 A 115/230 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 8 Pin
ST-7-10 36 10 VCT @ 3.6 A 5 V @ 7.2 A 115 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 6 Pin
DST-7-10 36 10 VCT @ 3.6 A 5 V @ 7.2 A 115/230 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 8 Pin
ST-2-12**# 1.1 12.6 VCT @ 0.09 A 6.3 V @ 0.18 A 115 V 50/60 2500 1.37 x 1.12 x 0.97 0.17 6 Pin
DST-2-12**# 1.1 12.6 VCT @ 0.09 A 6.3 V @ 0.18 A 115/230 V 50/60 2500 1.37 x 1.12 x 0.97 0.17 8 Pin
ST-3-12*# 2.4 12.6 VCT @ 0.2 A 6.3 V @ 0.4 A 115 V 50/60 2500 1.37 x 1.12 x 1.21 0.25 6 Pin
DST-3-12*# 2.4 12.6 VCT @ 0.2 A 6.3 V @ 0.4 A 115/230 V 50/60 2500 1.37 x 1.12 x 1.21 0.25 8 Pin
ST-4-12*# 6 12.6 VCT @ 0.5 A 6.3 V @ 1.0 A 115 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 6 Pin
DST-4-12*# 6 12.6 VCT @ 0.5 A 6.3 V @ 1.0 A 115/230 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 8 Pin
ST-5-12*# 12 12.6 VCT @ 1.0 A 6.3 V @ 2.0 A 115 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 6 Pin
DST-5-12*# 12 12.6 VCT @ 1.0 A 6.3 V @ 2.0 A 115/230 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 8 Pin
ST-6-12 20 12.6 VCT @ 1.6 A 6.3 V @ 3.2 A 115 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 6 Pin
DST-6-12 20 12.6 VCT @ 1.6 A 6.3 V @ 3.2 A 115/230 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 8 Pin
ST-7-12 36 12.6 VCT @ 2.85 A 6.3 V @ 5.7 A 115 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 6 Pin
DST-7-12 36 12.6 VCT @ 2.85 A 6.3 V @ 5.7 A 115/230 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 8 Pin
ST-2-16**# 1.1 16 VCT @ 0.07 A 8 V @ 0.14 A 115 V 50/60 2500 1.37 x 1.12 x 0.97 0.17 6 Pin
DST-2-16**# 1.1 16 VCT @ 0.07 A 8 V @ 0.14 A 115/230 V 50/60 2500 1.37 x 1.12 x 0.97 0.17 8 Pin
ST-3-16*# 2.4 16 VCT @ 0.15 A 8 V @ 0.3 A 115 V 50/60 2500 1.37 x 1.12 x 1.21 0.25 6 Pin
DST-3-16*# 2.4 16 VCT @ 0.15 A 8 V @ 0.3 A 115/230 V 50/60 2500 1.37 x 1.12 x 1.21 0.25 8 Pin
ST-4-16*# 6 16 VCT @ 0.4 A 8 V @ 0.8 A 115 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 6 Pin
DST-4-16*# 6 16 VCT @ 0.4 A 8 V @ 0.8 A 115/230 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 8 Pin
ST-5-16*# 12 16 VCT @ 0.8 A 8 V @ 1.6 A 115 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 6 Pin
DST-5-16*# 12 16 VCT @ 0.8 A 8 V @ 1.6 A 115/230 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 8 Pin
ST-6-16 20 16 VCT @ 1.25 A 8 V @ 2.5 A 115 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 6 Pin
DST-6-16 20 16 VCT @ 1.25 A 8 V @ 2.5 A 115/230 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 8 Pin
ST-7-16 36 16 VCT @ 2.25 A 8 V @ 4.5 A 115 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 6 Pin
DST-7-16 36 16 VCT @ 2.25 A 8 V @ 4.5 A 115/230 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 8 Pin
ST-2-20**# 1.1 20 VCT @ 0.055 A 10 V @ 0.11 A 115 V 50/60 2500 1.37 x 1.12 x 0.97 0.17 6 Pin
DST-2-20**# 1.1 20 VCT @ 0.055 A 10 V @ 0.11 A 115/230 V 50/60 2500 1.37 x 1.12 x 0.97 0.17 8 Pin
ST-3-20*# 2.4 20 VCT @ 0.12 A 10 V @ 0.24 A 115 V 50/60 2500 1.37 x 1.12 x 1.21 0.25 6 Pin
DST-3-20*# 2.4 20 VCT @ 0.12 A 10 V @ 0.24 A 115/230 V 50/60 2500 1.37 x 1.12 x 1.21 0.25 8 Pin
ST-4-20*# 6 20 VCT @ 0.3 A 10 V @ 0.6 A 115 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 6 Pin
DST-4-20*# 6 20 VCT @ 0.3 A 10 V @ 0.6 A 115/230 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 8 Pin
ST-5-20*# 12 20 VCT @ 0.6 A 10 V @ 1.2 A 115 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 6 Pin
DST-5-20*# 12 20 VCT @ 0.6 A 10 V @ 1.2 A 115/230 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 8 Pin
ST-6-20 20 20 VCT @ 1.0 A 10 V @ 2.0 A 115 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 6 Pin
DST-6-20 20 20 VCT @ 1.0 A 10 V @ 2.0 A 115/230 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 8 Pin
ST-7-20 36 20 VCT @ 1.8 A 10 V @ 3.6 A 115 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 6 Pin
DST-7-20 36 20 VCT @ 1.8 A 10 V @ 3.6 A 115/230 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 8 Pin
ST-2-24**# 1.1 24 VCT @ 0.045 A 12 V @ 0.09 A 115 V 50/60 2500 1.37 x 1.12 x 0.97 0.17 6 Pin
DST-2-24**# 1.1 24 VCT @ 0.045 A 12 V @ 0.09 A 115/230 V 50/60 2500 1.37 x 1.12 x 0.97 0.17 8 Pin
ST-3-24*# 2.4 24 VCT @ 0.1 A 12 V @ 0.2 A 115 V 50/60 2500 1.37 x 1.12 x 1.21 0.25 6 Pin
DST-3-24*# 2.4 24 VCT @ 0.1 A 12 V @ 0.2 A 115/230 V 50/60 2500 1.37 x 1.12 x 1.21 0.25 8 Pin
ST-4-24*# 6 24 VCT @ 0.25 A 12 V @ 0.5 A 115 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 6 Pin
DST-4-24*# 6 24 VCT @ 0.25 A 12 V @ 0.5 A 115/230 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 8 Pin
ST-5-24*# 12 24 VCT @ 0.5 A 12 V @ 1.0 A 115 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 6 Pin
DST-5-24*# 12 24 VCT @ 0.5 A 12 V @ 1.0 A 115/230 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 8 Pin
ST-6-24 20 24 VCT @ 0.8 A 12 V @ 1.6 A 115 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 6 Pin
DST-6-24 20 24 VCT @ 0.8 A 12 V @ 1.6 A 115/230 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 8 Pin
ST-7-24 36 24 VCT @ 1.5 A 12 V @ 3.0 A 115 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 6 Pin
DST-7-24 36 24 VCT @ 1.5 A 12 V @ 3.0 A 115/230 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 8 Pin
ST-2-28 1.1 28 VCT @ 0.04 A 14 V @ 0.08 A 115 V 50/60 2500 1.37 x 1.12 x 0.97 0.17 6 Pin
DST-2-28 1.1 28 VCT @ 0.04 A 14 V @ 0.08 A 115/230 V 50/60 2500 1.37 x 1.12 x 0.97 0.17 8 Pin
ST-3-28 2.4 28 VCT @ 0.085 A 14 V @ 0.17 A 115 V 50/60 2500 1.37 x 1.12 x 1.21 0.25 6 Pin
DST-3-28 2.4 28 VCT @ 0.085 A 14 V @ 0.17 A 115/230 V 50/60 2500 1.37 x 1.12 x 1.21 0.25 8 Pin
ST-4-28 6 28 VCT @ 0.2 A 14 V @ 0.4 A 115 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 6 Pin
DST-4-28 6 28 VCT @ 0.2 A 14 V @ 0.4 A 115/230 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 8 Pin
ST-5-28 12 28 VCT @ 0.42 A 14 V @ 0.84 A 115 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 6 Pin
DST-5-28 12 28 VCT @ 0.42 A 14 V @ 0.84 A 115/230 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 8 Pin
ST-6-28 20 28 VCT @ 0.7 A 14 V @ 1.4 A 115 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 6 Pin
DST-6-28 20 28 VCT @ 0.7 A 14 V @ 1.4 A 115/230 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 8 Pin
ST-7-28 36 28 VCT @ 1.3 A 14 V @ 2.6 A 115 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 6 Pin
DST-7-28 36 28 VCT @ 1.3 A 14 V @ 2.6 A 115/230 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 8 Pin
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 2500 1.37 x 1.12 x 0.97 0.17 6 Pin / 8 Pin
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 2500 1.37 x 1.12 x 1.21 0.25 6 Pin / 8 Pin
ST-4-36 DST-4-36 6 36 VCT @ 0.17 A 18 V @ 0.34 A 115 V / 115/230 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 6 Pin / 8 Pin
ST-5-36 DST-5-36 12 36 VCT @ 0.35 A 18 V @ 0.7 A 115 V / 115/230 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 6 Pin / 8 Pin
ST-6-36 DST-6-36 20 36 VCT @ 0.55 A 18 V @ 1.1 A 115 V / 115/230 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 6 Pin / 8 Pin
ST-7-36 DST-7-36 36 36 VCT @ 1.0 A 18 V @ 2.0 A 115 V / 115/230 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 6 Pin / 8 Pin
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 2500 1.37 x 1.12 x 0.97 0.17 6 Pin / 8 Pin
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 2500 1.37 x 1.12 x 1.21 0.25 6 Pin / 8 Pin
ST-4-48 DST-4-48 6 48 VCT @ 0.125 A 24 V @ 0.25 A 115 V / 115/230 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 6 Pin / 8 Pin
ST-5-48 DST-5-48 12 48 VCT @ 0.25 A 24 V @ 0.5 A 115 V / 115/230 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 6 Pin / 8 Pin
ST-6-48 DST-6-48 20 48 VCT @ 0.4 A 24 V @ 0.8 A 115 V / 115/230 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 6 Pin / 8 Pin
ST-7-48 DST-7-48 36 48 VCT @ 0.75 A 24 V @ 1.5 A 115 V / 115/230 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 6 Pin / 8 Pin
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 2500 1.37 x 1.12 x 0.97 0.17 6 Pin / 8 Pin
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 2500 1.37 x 1.12 x 1.21 0.25 6 Pin / 8 Pin
ST-4-56 DST-4-56 6 56 VCT @ 0.11 A 28 V @ 0.22 A 115 V / 115/230 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 6 Pin / 8 Pin
ST-5-56 DST-5-56 12 56 VCT @ 0.22 A 28 V @ 0.44 A 115 V / 115/230 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 6 Pin / 8 Pin
ST-6-56 DST-6-56 20 56 VCT @ 0.35 A 28 V @ 0.7 A 115 V / 115/230 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 6 Pin / 8 Pin
ST-7-56 DST-7-56 36 56 VCT @ 0.65 A 28 V @ 1.3 A 115 V / 115/230 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 6 Pin / 8 Pin
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 2500 1.37 x 1.12 x 0.97 0.17 6 Pin / 8 Pin
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 2500 1.37 x 1.12 x 1.21 0.25 6 Pin / 8 Pin
ST-4-120 DST-4-120 6 120 VCT @ 0.05 A 60 V @ 0.1 A 115 V / 115/230 V 50/60 2500 1.62 x 1.31 x 1.31 0.44 6 Pin / 8 Pin
ST-5-120 DST-5-120 12 120 VCT @ 0.1 A 60 V @ 0.2 A 115 V / 115/230 V 50/60 2500 1.91 x 1.59 x 1.45 0.70 6 Pin / 8 Pin
ST-6-120 DST-6-120 20 120 VCT @ 0.16 A 60 V @ 0.32 A 115 V / 115/230 V 50/60 2500 2.25 x 1.88 x 1.45 0.80 6 Pin / 8 Pin
ST-7-120 DST-7-120 36 120 VCT @ 0.3 A 60 V @ 0.6 A 115 V / 115/230 V 50/60 2500 2.62 x 2.18 x 1.59 1.1 6 Pin / 8 Pin

Note: Recommended secondary fuse values are indicated by numbers in parentheses next to the secondary ratings in the part number selection chart. Mounting hardware (screws and nuts) are available separately.


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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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