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China High isolation split bobbin transformer Bel Fuse ST-3-24 with rigid pin construction and UL CSA compliance for sale

High isolation split bobbin transformer Bel Fuse ST-3-24 with rigid pin construction and UL CSA compliance

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 high isolation and low capacitive coupling, utilizing a dual cavity platform. These split bobbin transformers feature rigid pin construction for enhanced board insertion and reliability. They 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. The series is UL and CSA certified and RoHS compliant.

Product Attributes

  • Brand: Signal Transformer
  • Series: ST / DST Series Split/Tran
  • Construction: Split Bobbin with Dual Cavity
  • Isolation: Superior isolation and 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 (**) or (#)
    • (*) CSA certified as Inherently Limited
    • (**) CSA certified as Non Inherently Limited
    • (#) UL Recognized UL5085-3, Inherently Limited File # E116583

Technical Specifications

Part Number Secondary RMS Rating VA Size (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 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) / 5 V @ 0.5 A (9) 2.4 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 (9) / 5 V @ 1.2 A (11) 6 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 (11) / 5 V @ 2.4 A (13) 12 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 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 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 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 (4) / 6.3 V @ 0.4 A (8) 2.4 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 (9) / 6.3 V @ 1.0 A (11) 6 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 (11) / 6.3 V @ 2.0 A (13) 12 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 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 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 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 (3) / 8 V @ 0.3 A (6) 2.4 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 (7) / 8 V @ 0.8 A (10) 6 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 (10) / 8 V @ 1.6 A (12) 12 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 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 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 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 (2) / 10 V @ 0.24 A (5) 2.4 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 (6) / 10 V @ 0.6 A (9) 6 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 (9) / 10 V @ 1.2 A (11) 12 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 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 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 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 (1) / 12 V @ 0.2 A (4) 2.4 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 (5) / 12 V @ 0.5 A (9) 6 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 (9) / 12 V @ 1.0 A (11) 12 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 @ 0.65A / 28 V @ 1.3 A 36 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 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 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 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 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 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 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
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 Mounting 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 for applicable fuse rating)

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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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