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China Signal Transformer Series Split Bobbin Dual Cavity PCB Mount Transformer Featuring Bel Fuse DST-4-16 for sale

Signal Transformer Series Split Bobbin Dual Cavity PCB Mount Transformer Featuring Bel Fuse DST-4-16

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 for superior isolation and low capacitive coupling. They offer rigid pin construction for easier board insertion and enhanced reliability. These transformers 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 with various secondary voltage and current ratings. Agency certifications include UL and CSA recognition, and they are RoHS compliant.

Product Attributes

  • Brand: Signal Transformer (Bel Fuse)
  • Series: ST / DST Series Split/Tran
  • Construction: Split Bobbin with Dual Cavity
  • Isolation: High Isolation, Low Capacitive Coupling
  • Pin Construction: Rigid, for easier board insertion and higher reliability
  • 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 (-)
    • UL Recognized UL5085-3, Inherently Limited File # E116583 (#)
  • Custom versions: Available upon request

Technical Specifications

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

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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