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China Signal Transformer ST DST Series Split Bobbin Dual Cavity Transformer Bel Fuse ST 6 20 for PCB Mounting for sale

Signal Transformer ST DST Series Split Bobbin Dual Cavity Transformer Bel Fuse ST 6 20 for PCB Mounting

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 thanks to 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 (155C) insulation system and meet stringent agency certifications including UL and CSA.

Product Attributes

  • Brand: Signal Transformer
  • Series: ST / DST Series Split/Tran
  • Construction: Split Bobbin with 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
  • RoHS Compliant: Yes
  • Customization: Custom versions available upon request.

Technical Specifications

Part Number Secondary RMS Rating (Series) Secondary RMS Rating (Parallel) Power (VA) Primary Configuration Pins Dielectric Strength (Vrms Hipot) Insulation System 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 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 / 8 2500 Class F, 155 C 1.1 (0.50)

Mechanical Specifications

Size VA L (inches/mm) W (inches/mm) H (inches/mm) ML (inches/mm) A (inches/mm) B (inches/mm) C (inches/mm) Mounting Hardware (Optional) Weight (lbs/kg)
2 1.1 1.37 (34.9) 1.12 (28.6) 0.97 (24.6) - 0.25 (6.4) 0.25 (6.4) 1.20 (30.5) - 0.17 (0.08)
3 2.4 1.37 (34.9) 1.12 (28.6) 1.21 (30.8) - 0.25 (6.4) 0.25 (6.4) 1.20 (30.5) - 0.25 (0.11)
4 6 1.62 (41.3) 1.31 (33.3) 1.31 (33.3) 1.06 (26.9) 0.25 (6.4) 0.35 (8.9) 1.25 (31.8) Nylon 4-40 x 1.37 (4-40 x 34.9) 0.44 (0.20)
5 12 1.91 (48.4) 1.59 (40.4) 1.45 (36.9) 1.25 (31.8) 0.30 (7.6) 0.40 (10.2) 1.41 (35.8) Nylon 4-40 x 1.37 (4-40 x 34.9) 0.70 (0.32)
6 20 2.25 (57.2) 1.88 (47.8) 1.45 (36.9) 1.50 (38.1) 0.30 (7.6) 0.40 (10.2) 1.60 (40.6) Nylon 4-40 x 1.37 (4-40 x 34.9) 0.80 (0.36)
7 36 2.62 (66.7) 2.18 (55.5) 1.59 (40.4) (hole centers) 0.40 (10.2) 0.40 (10.2) 1.85 (47.0) 4 mounting holes for #6 screws (2.18 x 1.75 centers) 1.1 (0.50)

Note: Mounting hardware (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.


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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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