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China Signal Transformer Split Bobbin Dual Cavity Transformer Featuring Class F Insulation Bel Fuse ST-6-12 for sale

Signal Transformer Split Bobbin Dual Cavity Transformer Featuring Class F Insulation Bel Fuse ST-6-12

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 through their dual cavity platform. Featuring rigid pin construction for enhanced board insertion and reliability, these transformers are suitable for a wide range of power applications from 1.1 VA to 36 VA. They are built with a Class F (155 C) insulation system and are available in single or dual primary configurations (115 V or 115/230 V, 50/60 Hz) with series or parallel secondary options. The split bobbin construction eliminates the need for an electrostatic shield.

Product Attributes

  • Brand: Signal Transformer (belfuse.com/signal)
  • Series: ST/DST Series Split/Tran
  • Construction: Split Bobbin, Dual Cavity
  • 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. Class 2 models marked with (*), (**), or (#).
  • Compliance: RoHS Compliant
  • Customization: Custom versions available upon request.

Technical Specifications

Part Number Secondary RMS Rating (Series) Secondary RMS Rating (Parallel) VA Rating Primary Configuration Pin Configuration Dimensions (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 Single 115 V / Dual 115/230 V 6 Pin (ST) / 8 Pin (DST) 1.37 (34.9) x 1.12 (28.6) x 0.97 (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 (34.9) x 1.12 (28.6) x 1.21 (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 (41.3) x 1.31 (33.3) x 1.31 (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 (48.4) x 1.59 (40.4) x 1.45 (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 (57.2) x 1.88 (47.8) x 1.45 (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 (66.7) x 2.18 (55.5) x 1.59 (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 (34.9) x 1.12 (28.6) x 0.97 (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 (34.9) x 1.12 (28.6) x 1.21 (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 (41.3) x 1.31 (33.3) x 1.31 (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 (48.4) x 1.59 (40.4) x 1.45 (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 (57.2) x 1.88 (47.8) x 1.45 (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 (66.7) x 2.18 (55.5) x 1.59 (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 (34.9) x 1.12 (28.6) x 0.97 (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 (34.9) x 1.12 (28.6) x 1.21 (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 (41.3) x 1.31 (33.3) x 1.31 (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 (48.4) x 1.59 (40.4) x 1.45 (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 (57.2) x 1.88 (47.8) x 1.45 (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 (66.7) x 2.18 (55.5) x 1.59 (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 (34.9) x 1.12 (28.6) x 0.97 (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 (34.9) x 1.12 (28.6) x 1.21 (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 (41.3) x 1.31 (33.3) x 1.31 (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 (48.4) x 1.59 (40.4) x 1.45 (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 (57.2) x 1.88 (47.8) x 1.45 (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 (66.7) x 2.18 (55.5) x 1.59 (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 (34.9) x 1.12 (28.6) x 0.97 (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 (34.9) x 1.12 (28.6) x 1.21 (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 (41.3) x 1.31 (33.3) x 1.31 (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 (48.4) x 1.59 (40.4) x 1.45 (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 (57.2) x 1.88 (47.8) x 1.45 (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 (66.7) x 2.18 (55.5) x 1.59 (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 (34.9) x 1.12 (28.6) x 0.97 (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 (34.9) x 1.12 (28.6) x 1.21 (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 (41.3) x 1.31 (33.3) x 1.31 (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 (48.4) x 1.59 (40.4) x 1.45 (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 (57.2) x 1.88 (47.8) x 1.45 (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 (66.7) x 2.18 (55.5) x 1.59 (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 (34.9) x 1.12 (28.6) x 0.97 (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 (34.9) x 1.12 (28.6) x 1.21 (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 (41.3) x 1.31 (33.3) x 1.31 (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 (48.4) x 1.59 (40.4) x 1.45 (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 (57.2) x 1.88 (47.8) x 1.45 (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 (66.7) x 2.18 (55.5) x 1.59 (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 (34.9) x 1.12 (28.6) x 0.97 (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 (34.9) x 1.12 (28.6) x 1.21 (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 (41.3) x 1.31 (33.3) x 1.31 (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 (48.4) x 1.59 (40.4) x 1.45 (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 (57.2) x 1.88 (47.8) x 1.45 (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 (66.7) x 2.18 (55.5) x 1.59 (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 (34.9) x 1.12 (28.6) x 0.97 (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 (34.9) x 1.12 (28.6) x 1.21 (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 (41.3) x 1.31 (33.3) x 1.31 (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 (48.4) x 1.59 (40.4) x 1.45 (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 (57.2) x 1.88 (47.8) x 1.45 (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 (66.7) x 2.18 (55.5) x 1.59 (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 (34.9) x 1.12 (28.6) x 0.97 (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 (34.9) x 1.12 (28.6) x 1.21 (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 (41.3) x 1.31 (33.3) x 1.31 (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 (48.4) x 1.59 (40.4) x 1.45 (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 (57.2) x 1.88 (47.8) x 1.45 (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 (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 (ST-MS screw, ST-MN nut available from Signal). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws.
- Recommended secondary fuse values: 0.125A, 0.15A, 0.25A, 0.3A, 0.375A, 0.4A, 0.5A, 0.6A, 0.75A, 1.0A, 1.5A, 2.0A, 3.0A (refer to specific part number markings 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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