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China Durable Class F insulation system transformer Bel Fuse ST-5-10 with split bobbin dual cavity design for sale

Durable Class F insulation system transformer Bel Fuse ST-5-10 with split bobbin dual cavity design

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 split bobbin platform. These transformers feature rigid pin construction for enhanced board insertion reliability and 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 are RoHS compliant.

Product Attributes

  • Brand: Signal Transformer
  • Series: ST / DST Series Split/Tran
  • Construction: Split Bobbin, Dual Cavity
  • Insulation System: Class F, 155C
  • 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 (marked with *, **, or #)
  • Compliance: RoHS Compliant
  • Customization: Custom versions available upon request.

Technical Specifications

Part Number Secondary RMS Rating (Series) Secondary RMS Rating (Parallel) Power (VA) Primary Type Pin Configuration 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.17 (0.08)
ST-3-10*# / DST-3-10*# 10 VCT @ 0.25 A (5) 5 V @ 0.5 A (9) 2.4 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.25 (0.11)
ST-4-10*# / DST-4-10*# 10 VCT @ 0.6 A (9) 5 V @ 1.2 A (11) 6 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.44 (0.20)
ST-5-10*# / DST-5-10*# 10 VCT @ 1.2 A (11) 5 V @ 2.4 A (13) 12 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.70 (0.32)
ST-6-10 / DST-6-10 10 VCT @ 2.0 A 5 V @ 4.0 A 20 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.80 (0.36)
ST-7-10 / DST-7-10 10 VCT @ 3.6 A 5 V @ 7.2 A 36 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.17 (0.08)
ST-3-16*# / DST-3-16*# 16 VCT @ 0.15 A (3) 8 V @ 0.3 A (6) 2.4 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.25 (0.11)
ST-4-16*# / DST-4-16*# 16 VCT @ 0.4 A (7) 8 V @ 0.8 A (10) 6 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.44 (0.20)
ST-5-16*# / DST-5-16*# 16 VCT @ 0.8 A (10) 8 V @ 1.6 A (12) 12 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.70 (0.32)
ST-6-16 / DST-6-16 16 VCT @ 1.25 A 8 V @ 2.5 A 20 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.80 (0.36)
ST-7-16 / DST-7-16 16 VCT @ 2.25 A 8 V @ 4.5 A 36 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.17 (0.08)
ST-3-20*# / DST-3-20*# 20 VCT @ 0.12 A (2) 10 V @ 0.24 A (5) 2.4 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.25 (0.11)
ST-4-20*# / DST-4-20*# 20 VCT @ 0.3 A (6) 10 V @ 0.6 A (9) 6 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.44 (0.20)
ST-5-20*# / DST-5-20*# 20 VCT @ 0.6 A (9) 10 V @ 1.2 A (11) 12 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.70 (0.32)
ST-6-20 / DST-6-20 20 VCT @ 1.0 A 10 V @ 2.0 A 20 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.80 (0.36)
ST-7-20 / DST-7-20 20 VCT @ 1.8 A 10 V @ 3.6 A 36 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.17 (0.08)
ST-3-24*# / DST-3-24*# 24 VCT @ 0.1 A (1) 12 V @ 0.2 A (4) 2.4 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.25 (0.11)
ST-4-24*# / DST-4-24*# 24 VCT @ 0.25 A (5) 12 V @ 0.5 A (9) 6 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.44 (0.20)
ST-5-24*# / DST-5-24*# 24 VCT @ 0.5 A (9) 12 V @ 1.0 A (11) 12 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.70 (0.32)
ST-6-24 / DST-6-24 24 VCT @ 0.8 A 12 V @ 1.6 A 20 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.80 (0.36)
ST-7-24 / DST-7-24 24 VCT @ 1.5 A 12 V @ 3.0 A 36 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.25 (0.11)
ST-4-28 / DST-4-28 28 VCT @ 0.2 A 14 V @ 0.4 A 6 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.44 (0.20)
ST-5-28 / DST-5-28 28 VCT @ 0.42 A 14 V @ 0.84 A 12 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.70 (0.32)
ST-6-28 / DST-6-28 28 VCT @ 0.7 A 14 V @ 1.4 A 20 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.80 (0.36)
ST-7-28 / DST-7-28 28 VCT @ 1.3 A 14 V @ 2.6 A 36 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.25 (0.11)
ST-4-36 / DST-4-36 36 VCT @ 0.17 A 18 V @ 0.34 A 6 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.44 (0.20)
ST-5-36 / DST-5-36 36 VCT @ 0.35 A 18 V @ 0.7 A 12 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.70 (0.32)
ST-6-36 / DST-6-36 36 VCT @ 0.55 A 18 V @ 1.1 A 20 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.80 (0.36)
ST-7-36 / DST-7-36 36 VCT @ 1.0 A 18 V @ 2.0 A 36 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.25 (0.11)
ST-4-48 / DST-4-48 48 VCT @ 0.125 A 24 V @ 0.25 A 6 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.44 (0.20)
ST-5-48 / DST-5-48 48 VCT @ 0.25 A 24 V @ 0.5 A 12 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.70 (0.32)
ST-6-48 / DST-6-48 48 VCT @ 0.4 A 24 V @ 0.8 A 20 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.80 (0.36)
ST-7-48 / DST-7-48 48 VCT @ 0.75 A 24 V @ 1.5 A 36 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.25 (0.11)
ST-4-56 / DST-4-56 56 VCT @ 0.11 A 28 V @ 0.22 A 6 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.44 (0.20)
ST-5-56 / DST-5-56 56 VCT @ 0.22 A 28 V @ 0.44 A 12 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.70 (0.32)
ST-6-56 / DST-6-56 56 VCT @ 0.35 A 28 V @ 0.7 A 20 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.80 (0.36)
ST-7-56 / DST-7-56 56 VCT @ 0.65A 28 V @ 1.3 A 36 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 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 (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.25 (0.11)
ST-4-120 / DST-4-120 120 VCT @ 0.05 A 60 V @ 0.1 A 6 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.44 (0.20)
ST-5-120 / DST-5-120 120 VCT @ 0.1 A 60 V @ 0.2 A 12 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.70 (0.32)
ST-6-120 / DST-6-120 120 VCT @ 0.16 A 60 V @ 0.32 A 20 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 0.80 (0.36)
ST-7-120 / DST-7-120 120 VCT @ 0.3 A 60 V @ 0.6 A 36 Single 115 V (ST) / Dual 115/230 V (DST) 6 Pin (ST) / 8 Pin (DST) 2500 Class F (155C) 1.1 (0.50)
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 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) - 0.40 (10.2) 0.40 (10.2) 1.85 (47.0) 4 mounting holes on 2.18 x 1.75 centers for #6 screws. ST-MS (screw) and ST-MN (nut) available from Signal. 1.1 (0.50)

Note: Recommended secondary fuse values are indicated by numbers in parentheses next to secondary ratings.


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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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