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China factory - Changsha Purple Horn E-Commerce Co., Ltd.

Changsha Purple Horn E-Commerce Co., Ltd.

  • China,Changsha ,Hunan
  • Verified Supplier

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China split bobbin dual cavity transformer Bel Fuse ST-4-56 with Class F insulation
China split bobbin dual cavity transformer Bel Fuse ST-4-56 with Class F insulation

  1. China split bobbin dual cavity transformer Bel Fuse ST-4-56 with Class F insulation

split bobbin dual cavity transformer Bel Fuse ST-4-56 with Class F insulation

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Secondary Winding 2
Isolation Voltage(Vrms) 2.5kV
Primary Winding(s) 1
Secondary Side Voltage 28V;56V
Output Current 220mA;110mA
Primary Side Voltage 115V
Description 115V Through Hole-6P,41.3x33.3mm Power Transformers RoHS
Mfr. Part # ST-4-56
Package Through Hole-6P,41.3x33.3mm
Model Number ST-4-56

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  1. Product Details
  2. Company Details

Product Specification

Secondary Winding 2 Isolation Voltage(Vrms) 2.5kV
Primary Winding(s) 1 Secondary Side Voltage 28V;56V
Output Current 220mA;110mA Primary Side Voltage 115V
Description 115V Through Hole-6P,41.3x33.3mm Power Transformers RoHS Mfr. Part # ST-4-56
Package Through Hole-6P,41.3x33.3mm Model Number ST-4-56

Product Overview

The Signal ST/DST Series Split/Tran Specialty Purpose & Class 2 Transformers are designed for printed circuit board mounting. Utilizing a dual cavity platform, these transformers offer superior isolation and low capacitive coupling. Their rigid pin construction ensures easier board insertion and enhanced reliability. Suitable for a wide range of power applications from 1.1 VA to 36 VA, they feature Class F insulation (155C) and meet stringent agency certifications including UL and CSA. Custom versions are available upon request.

Product Attributes

  • Brand: Signal Transformer (Bel Fuse)
  • Series: ST / DST Split/Tran
  • Construction: Split Bobbin with Dual Cavity
  • Insulation System: Class F (155 C)
  • Compliance: RoHS Compliant
  • 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 (**) or (#)
    • CSA certified as Inherently Limited (*)
    • CSA certified as Non Inherently Limited (**)
    • UL Recognized UL5085-3, Inherently Limited (#) File # E116583

Technical Specifications

Size (VA) L (Inches/mm) W (Inches/mm) H (Inches/mm) ML (Inches/mm) A (Inches/mm) B (Inches/mm) C (Inches/mm) Weight (lbs/kg)
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)
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)
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) 0.44 (0.20)
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) 0.70 (0.32)
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) 0.80 (0.36)
36 2.62 (66.7) 2.18 (55.5) 1.59 (40.4) - 0.40 (10.2) 0.40 (10.2) 1.85 (47.0) 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 due to split bobbin construction
  • Mounting Hardware: See chart (ST-MS screw, ST-MN nut available from Signal)

Part Number Selection Examples

Part Number Secondary RMS Rating (Series) Secondary RMS Rating (Parallel) Primary Configuration
ST-2-10**# 10 VCT @ 0.11 A 5 V @ 0.22 A Single 115 V (6 Pin)
DST-2-10**# 10 VCT @ 0.11 A 5 V @ 0.22 A Dual 115/230 V (8 Pin)
ST-3-10*# 10 VCT @ 0.25 A 5 V @ 0.5 A Single 115 V (6 Pin)
DST-3-10*# 10 VCT @ 0.25 A 5 V @ 0.5 A Dual 115/230 V (8 Pin)
ST-6-10 10 VCT @ 2.0 A 5 V @ 4.0 A Single 115 V (6 Pin)
DST-6-10 10 VCT @ 2.0 A 5 V @ 4.0 A Dual 115/230 V (8 Pin)
ST-7-12 12.6 VCT @ 2.85 A 6.3 V @ 5.7 A Single 115 V (6 Pin)
DST-7-12 12.6 VCT @ 2.85 A 6.3 V @ 5.7 A Dual 115/230 V (8 Pin)
ST-4-16*# 16 VCT @ 0.4 A 8 V @ 0.8 A Single 115 V (6 Pin)
DST-4-16*# 16 VCT @ 0.4 A 8 V @ 0.8 A Dual 115/230 V (8 Pin)
ST-5-20*# 20 VCT @ 0.6 A 10 V @ 1.2 A Single 115 V (6 Pin)
DST-5-20*# 20 VCT @ 0.6 A 10 V @ 1.2 A Dual 115/230 V (8 Pin)
ST-7-24 24 VCT @ 1.5 A 12 V @ 3.0 A Single 115 V (6 Pin)
DST-7-24 24 VCT @ 1.5 A 12 V @ 3.0 A Dual 115/230 V (8 Pin)
ST-3-28 28 VCT @ 0.085 A 14 V @ 0.17 A Single 115 V (6 Pin)
DST-3-28 28 VCT @ 0.085 A 14 V @ 0.17 A Dual 115/230 V (8 Pin)
ST-5-36 36 VCT @ 0.35 A 18 V @ 0.7 A Single 115 V (6 Pin)
DST-5-36 36 VCT @ 0.35 A 18 V @ 0.7 A Dual 115/230 V (8 Pin)
ST-6-48 48 VCT @ 0.4 A 24 V @ 0.8 A Single 115 V (6 Pin)
DST-6-48 48 VCT @ 0.4 A 24 V @ 0.8 A Dual 115/230 V (8 Pin)
ST-2-56 56 VCT @ 0.02 A 28 V @ 0.04 A Single 115 V (6 Pin)
DST-2-56 56 VCT @ 0.02 A 28 V @ 0.04 A Dual 115/230 V (8 Pin)
ST-4-120 120 VCT @ 0.05 A 60 V @ 0.1 A Single 115 V (6 Pin)
DST-4-120 120 VCT @ 0.05 A 60 V @ 0.1 A Dual 115/230 V (8 Pin)

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

Contact Information

  • Address: 128 Atlantic Avenue, Lynbrook, NY 11563
  • Toll Free: 866-239-5777
  • Tel: 516-239-5777
  • Fax: 516-239-7208
  • Email: sales@signaltransformer.com | techhelp@signaltransformer.com

2411272143_Bel-Fuse-ST-4-56_C17572669.pdf

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Agent,Importer

  • Year Established:

    2009

  • Employee Number:

    >300

  • Ecer Certification:

    Verified Supplier

Changsha Purple Horn E-Commerce Co., Ltd. is a professional company focus on integrated circuit ic business. Changsha Purple Horn will also responsible with exporting and logistic business. there is professional factory Changsha Purple Horn which focus on desigining and manufacture.   ... Changsha Purple Horn E-Commerce Co., Ltd. is a professional company focus on integrated circuit ic business. Changsha Purple Horn will also responsible with exporting and logistic business. there is professional factory Changsha Purple Horn which focus on desigining and manufacture.   ...

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Get in touch with us

  • Reach Us
  • Changsha Purple Horn E-Commerce Co., Ltd.
  • 2332 Kaibin Commercial Plaza, No. 419 Shaoshan Middle Road, Shazitang Street, Yuhua District, Changsha City, Hunan Province
  • https://www.ictransformer.com/

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