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China Bel Fuse DST 7 12 Signal ST DST Series Transformer with Class F Insulation and UL 1446 Certification for sale

Bel Fuse DST 7 12 Signal ST DST Series Transformer with Class F Insulation and UL 1446 Certification

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 split bobbin construction with dual cavities to provide superior isolation and low capacitive coupling. Their rigid pin construction ensures easier board insertion and enhanced reliability. These transformers are suitable for a wide range of applications requiring reliable power conversion and isolation, from 1.1 VA to 36 VA.

Product Attributes

  • Brand: Signal (Bel Fuse)
  • Series: ST / DST Series Split/Tran
  • Construction: Split Bobbin with Dual Cavity
  • Pin Construction: Rigid
  • Insulation System: Class F, 155 C
  • Certifications: UL 1446 Class F, UL Recognized 506 / UL 5085-1, 2, CSA certified to C22.2 #66.1, cCSAus certified to C22.2 #66.3 / UL 5085-3, UL Recognized UL5085-3 Inherently Limited
  • Compliance: RoHS Compliant
  • Customization: Custom versions available upon request.

Technical Specifications

Part Number Secondary RMS Rating (Series) Secondary RMS Rating (Parallel) Power (VA) Primary Configuration Pin Configuration Dimensions (L x W x H) Inches (mm) Weight (lbs/kg)
ST-2-10**# / DST-2-10**# 10 VCT @ 0.11 A 5 V @ 0.22 A 1.1 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 0.97 (34.9 x 28.6 x 24.6) 0.17 (0.08)
ST-3-10*# / DST-3-10*# 10 VCT @ 0.25 A 5 V @ 0.5 A 2.4 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 1.21 (34.9 x 28.6 x 30.8) 0.25 (0.11)
ST-4-10*# / DST-4-10*# 10 VCT @ 0.6 A 5 V @ 1.2 A 6 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.62 x 1.31 x 1.31 (41.3 x 33.3 x 33.3) 0.44 (0.20)
ST-5-10*# / DST-5-10*# 10 VCT @ 1.2 A 5 V @ 2.4 A 12 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.91 x 1.59 x 1.45 (48.4 x 40.4 x 36.9) 0.70 (0.32)
ST-6-10 / DST-6-10 10 VCT @ 2.0 A 5 V @ 4.0 A 20 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.25 x 1.88 x 1.45 (57.2 x 47.8 x 36.9) 0.80 (0.36)
ST-7-10 / DST-7-10 10 VCT @ 3.6 A 5 V @ 7.2 A 36 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.62 x 2.18 x 1.59 (66.7 x 55.5 x 40.4) 1.1 (0.50)
ST-2-12**# / DST-2-12**# 12.6 VCT @ 0.09 A 6.3 V @ 0.18 A 1.1 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 0.97 (34.9 x 28.6 x 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 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 1.21 (34.9 x 28.6 x 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 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.62 x 1.31 x 1.31 (41.3 x 33.3 x 33.3) 0.44 (0.20)
ST-5-12*# / DST-5-12*# 12.6 VCT @ 1.0 A 6.3 V @ 2.0 A 12 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.91 x 1.59 x 1.45 (48.4 x 40.4 x 36.9) 0.70 (0.32)
ST-6-12 / DST-6-12 12.6 VCT @ 1.6 A 6.3 V @ 3.2 A 20 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.25 x 1.88 x 1.45 (57.2 x 47.8 x 36.9) 0.80 (0.36)
ST-7-12 / DST-7-12 12.6 VCT @ 2.85 A 6.3 V @ 5.7 A 36 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.62 x 2.18 x 1.59 (66.7 x 55.5 x 40.4) 1.1 (0.50)
ST-2-16**# / DST-2-16**# 16 VCT @ 0.07 A 8 V @ 0.14 A 1.1 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 0.97 (34.9 x 28.6 x 24.6) 0.17 (0.08)
ST-3-16*# / DST-3-16*# 16 VCT @ 0.15 A 8 V @ 0.3 A 2.4 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 1.21 (34.9 x 28.6 x 30.8) 0.25 (0.11)
ST-4-16*# / DST-4-16*# 16 VCT @ 0.4 A 8 V @ 0.8 A 6 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.62 x 1.31 x 1.31 (41.3 x 33.3 x 33.3) 0.44 (0.20)
ST-5-16*# / DST-5-16*# 16 VCT @ 0.8 A 8 V @ 1.6 A 12 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.91 x 1.59 x 1.45 (48.4 x 40.4 x 36.9) 0.70 (0.32)
ST-6-16 / DST-6-16 16 VCT @ 1.25 A 8 V @ 2.5 A 20 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.25 x 1.88 x 1.45 (57.2 x 47.8 x 36.9) 0.80 (0.36)
ST-7-16 / DST-7-16 16 VCT @ 2.25 A 8 V @ 4.5 A 36 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.62 x 2.18 x 1.59 (66.7 x 55.5 x 40.4) 1.1 (0.50)
ST-2-20**# / DST-2-20**# 20 VCT @ 0.055 A 10 V @ 0.11 A 1.1 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 0.97 (34.9 x 28.6 x 24.6) 0.17 (0.08)
ST-3-20*# / DST-3-20*# 20 VCT @ 0.12 A 10 V @ 0.24 A 2.4 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 1.21 (34.9 x 28.6 x 30.8) 0.25 (0.11)
ST-4-20*# / DST-4-20*# 20 VCT @ 0.3 A 10 V @ 0.6 A 6 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.62 x 1.31 x 1.31 (41.3 x 33.3 x 33.3) 0.44 (0.20)
ST-5-20*# / DST-5-20*# 20 VCT @ 0.6 A 10 V @ 1.2 A 12 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.91 x 1.59 x 1.45 (48.4 x 40.4 x 36.9) 0.70 (0.32)
ST-6-20 / DST-6-20 20 VCT @ 1.0 A 10 V @ 2.0 A 20 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.25 x 1.88 x 1.45 (57.2 x 47.8 x 36.9) 0.80 (0.36)
ST-7-20 / DST-7-20 20 VCT @ 1.8 A 10 V @ 3.6 A 36 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.62 x 2.18 x 1.59 (66.7 x 55.5 x 40.4) 1.1 (0.50)
ST-2-24**# / DST-2-24**# 24 VCT @ 0.045 A 12 V @ 0.09 A 1.1 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 0.97 (34.9 x 28.6 x 24.6) 0.17 (0.08)
ST-3-24*# / DST-3-24*# 24 VCT @ 0.1 A 12 V @ 0.2 A 2.4 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 1.21 (34.9 x 28.6 x 30.8) 0.25 (0.11)
ST-4-24*# / DST-4-24*# 24 VCT @ 0.25 A 12 V @ 0.5 A 6 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.62 x 1.31 x 1.31 (41.3 x 33.3 x 33.3) 0.44 (0.20)
ST-5-24*# / DST-5-24*# 24 VCT @ 0.5 A 12 V @ 1.0 A 12 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.91 x 1.59 x 1.45 (48.4 x 40.4 x 36.9) 0.70 (0.32)
ST-6-24 / DST-6-24 24 VCT @ 0.8 A 12 V @ 1.6 A 20 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.25 x 1.88 x 1.45 (57.2 x 47.8 x 36.9) 0.80 (0.36)
ST-7-24 / DST-7-24 24 VCT @ 1.5 A 12 V @ 3.0 A 36 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.62 x 2.18 x 1.59 (66.7 x 55.5 x 40.4) 1.1 (0.50)
ST-2-28 / DST-2-28 28 VCT @ 0.04 A 14 V @ 0.08 A 1.1 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 0.97 (34.9 x 28.6 x 24.6) 0.17 (0.08)
ST-3-28 / DST-3-28 28 VCT @ 0.085 A 14 V @ 0.17 A 2.4 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 1.21 (34.9 x 28.6 x 30.8) 0.25 (0.11)
ST-4-28 / DST-4-28 28 VCT @ 0.2 A 14 V @ 0.4 A 6 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.62 x 1.31 x 1.31 (41.3 x 33.3 x 33.3) 0.44 (0.20)
ST-5-28 / DST-5-28 28 VCT @ 0.42 A 14 V @ 0.84 A 12 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.91 x 1.59 x 1.45 (48.4 x 40.4 x 36.9) 0.70 (0.32)
ST-6-28 / DST-6-28 28 VCT @ 0.7 A 14 V @ 1.4 A 20 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.25 x 1.88 x 1.45 (57.2 x 47.8 x 36.9) 0.80 (0.36)
ST-7-28 / DST-7-28 28 VCT @ 1.3 A 14 V @ 2.6 A 36 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.62 x 2.18 x 1.59 (66.7 x 55.5 x 40.4) 1.1 (0.50)
ST-2-36 / DST-2-36 36 VCT @ 0.03 A 18 V @ 0.06 A 1.1 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 0.97 (34.9 x 28.6 x 24.6) 0.17 (0.08)
ST-3-36 / DST-3-36 36 VCT @ 0.065 A 18 V @ 0.13 A 2.4 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 1.21 (34.9 x 28.6 x 30.8) 0.25 (0.11)
ST-4-36 / DST-4-36 36 VCT @ 0.17 A 18 V @ 0.34 A 6 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.62 x 1.31 x 1.31 (41.3 x 33.3 x 33.3) 0.44 (0.20)
ST-5-36 / DST-5-36 36 VCT @ 0.35 A 18 V @ 0.7 A 12 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.91 x 1.59 x 1.45 (48.4 x 40.4 x 36.9) 0.70 (0.32)
ST-6-36 / DST-6-36 36 VCT @ 0.55 A 18 V @ 1.1 A 20 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.25 x 1.88 x 1.45 (57.2 x 47.8 x 36.9) 0.80 (0.36)
ST-7-36 / DST-7-36 36 VCT @ 1.0 A 18 V @ 2.0 A 36 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.62 x 2.18 x 1.59 (66.7 x 55.5 x 40.4) 1.1 (0.50)
ST-2-48 / DST-2-48 48 VCT @ 0.023 A 24 V @ 0.046 A 1.1 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 0.97 (34.9 x 28.6 x 24.6) 0.17 (0.08)
ST-3-48 / DST-3-48 48 VCT @ 0.05 A 24 V @ 0.1 A 2.4 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 1.21 (34.9 x 28.6 x 30.8) 0.25 (0.11)
ST-4-48 / DST-4-48 48 VCT @ 0.125 A 24 V @ 0.25 A 6 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.62 x 1.31 x 1.31 (41.3 x 33.3 x 33.3) 0.44 (0.20)
ST-5-48 / DST-5-48 48 VCT @ 0.25 A 24 V @ 0.5 A 12 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.91 x 1.59 x 1.45 (48.4 x 40.4 x 36.9) 0.70 (0.32)
ST-6-48 / DST-6-48 48 VCT @ 0.4 A 24 V @ 0.8 A 20 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.25 x 1.88 x 1.45 (57.2 x 47.8 x 36.9) 0.80 (0.36)
ST-7-48 / DST-7-48 48 VCT @ 0.75 A 24 V @ 1.5 A 36 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.62 x 2.18 x 1.59 (66.7 x 55.5 x 40.4) 1.1 (0.50)
ST-2-56 / DST-2-56 56 VCT @ 0.02 A 28 V @ 0.04 A 1.1 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 0.97 (34.9 x 28.6 x 24.6) 0.17 (0.08)
ST-3-56 / DST-3-56 56 VCT @ 0.045 A 28 V @ 0.09 A 2.4 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 1.21 (34.9 x 28.6 x 30.8) 0.25 (0.11)
ST-4-56 / DST-4-56 56 VCT @ 0.11 A 28 V @ 0.22 A 6 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.62 x 1.31 x 1.31 (41.3 x 33.3 x 33.3) 0.44 (0.20)
ST-5-56 / DST-5-56 56 VCT @ 0.22 A 28 V @ 0.44 A 12 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.91 x 1.59 x 1.45 (48.4 x 40.4 x 36.9) 0.70 (0.32)
ST-6-56 / DST-6-56 56 VCT @ 0.35 A 28 V @ 0.7 A 20 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.25 x 1.88 x 1.45 (57.2 x 47.8 x 36.9) 0.80 (0.36)
ST-7-56 / DST-7-56 56 VCT @ 0.65 A 28 V @ 1.3 A 36 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.62 x 2.18 x 1.59 (66.7 x 55.5 x 40.4) 1.1 (0.50)
ST-2-120 / DST-2-120 120 VCT @ 0.01 A 60 V @ 0.02 A 1.1 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 0.97 (34.9 x 28.6 x 24.6) 0.17 (0.08)
ST-3-120 / DST-3-120 120 VCT @ 0.02 A 60 V @ 0.04 A 2.4 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 x 1.12 x 1.21 (34.9 x 28.6 x 30.8) 0.25 (0.11)
ST-4-120 / DST-4-120 120 VCT @ 0.05 A 60 V @ 0.1 A 6 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.62 x 1.31 x 1.31 (41.3 x 33.3 x 33.3) 0.44 (0.20)
ST-5-120 / DST-5-120 120 VCT @ 0.1 A 60 V @ 0.2 A 12 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.91 x 1.59 x 1.45 (48.4 x 40.4 x 36.9) 0.70 (0.32)
ST-6-120 / DST-6-120 120 VCT @ 0.16 A 60 V @ 0.32 A 20 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.25 x 1.88 x 1.45 (57.2 x 47.8 x 36.9) 0.80 (0.36)
ST-7-120 / DST-7-120 120 VCT @ 0.3 A 60 V @ 0.6 A 36 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 2.62 x 2.18 x 1.59 (66.7 x 55.5 x 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 configuration available.
Electrostatic Shield: Not necessary due to split bobbin construction.
Insulation System: Class F, 155 C.
Mounting Hardware: See chart (Optional mounting screw & nut available: ST-MS, ST-MN). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws.
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

Note: Specifications are 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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