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 (155C) insulation system and meet stringent agency certifications, including UL and CSA recognition, ensuring safety and performance in demanding environments. Custom versions are available upon request.
Product Attributes
- Brand: Signal
- Series: ST / DST Series Split/Tran
- Construction: Split Bobbin with Dual Cavity
- Insulation System: Class F, 155C
- 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
| Part Number | Secondary RMS Rating | Power (VA) | Primary Type | Secondary Pins | Approx. Weight (lbs / kg) |
|---|---|---|---|---|---|
| ST-2-10**# | 10 VCT @ 0.11 A / 5 V @ 0.22 A | 1.1 | Single 115 V | 6 Pin | 0.17 (0.08) |
| DST-2-10**# | 10 VCT @ 0.11 A / 5 V @ 0.22 A | 1.1 | Dual 115/230 V | 8 Pin | 0.17 (0.08) |
| ST-3-10*# | 10 VCT @ 0.25 A (5) / 5 V @ 0.5 A (9) | 2.4 | Single 115 V | 6 Pin | 0.25 (0.11) |
| DST-3-10*# | 10 VCT @ 0.25 A (5) / 5 V @ 0.5 A (9) | 2.4 | Dual 115/230 V | 8 Pin | 0.25 (0.11) |
| ST-4-10*# | 10 VCT @ 0.6 A (9) / 5 V @ 1.2 A (11) | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-10*# | 10 VCT @ 0.6 A (9) / 5 V @ 1.2 A (11) | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-10*# | 10 VCT @ 1.2 A (11) / 5 V @ 2.4 A (13) | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-10*# | 10 VCT @ 1.2 A (11) / 5 V @ 2.4 A (13) | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-10 | 10 VCT @ 2.0 A / 5 V @ 4.0 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-10 | 10 VCT @ 2.0 A / 5 V @ 4.0 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-10 | 10 VCT @ 3.6 A / 5 V @ 7.2 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-10 | 10 VCT @ 3.6 A / 5 V @ 7.2 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-12**# | 12.6 VCT @ 0.09 A / 6.3 V @ 0.18 A | 1.1 | Single 115 V | 6 Pin | 0.17 (0.08) |
| DST-2-12**# | 12.6 VCT @ 0.09 A / 6.3 V @ 0.18 A | 1.1 | Dual 115/230 V | 8 Pin | 0.17 (0.08) |
| ST-3-12*# | 12.6 VCT @ 0.2 A (4) / 6.3 V @ 0.4 A (8) | 2.4 | Single 115 V | 6 Pin | 0.25 (0.11) |
| DST-3-12*# | 12.6 VCT @ 0.2 A (4) / 6.3 V @ 0.4 A (8) | 2.4 | Dual 115/230 V | 8 Pin | 0.25 (0.11) |
| ST-4-12*# | 12.6 VCT @ 0.5 A (9) / 6.3 V @ 1.0 A (11) | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-12*# | 12.6 VCT @ 0.5 A (9) / 6.3 V @ 1.0 A (11) | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-12*# | 12.6 VCT @ 1.0 A (11) / 6.3 V @ 2.0 A (13) | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-12*# | 12.6 VCT @ 1.0 A (11) / 6.3 V @ 2.0 A (13) | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-12 | 12.6 VCT @ 1.6 A / 6.3 V @ 3.2 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-12 | 12.6 VCT @ 1.6 A / 6.3 V @ 3.2 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-12 | 12.6 VCT @ 2.85 A / 6.3 V @ 5.7 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-12 | 12.6 VCT @ 2.85 A / 6.3 V @ 5.7 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-16**# | 16 VCT @ 0.07 A / 8 V @ 0.14 A | 1.1 | Single 115 V | 6 Pin | 0.17 (0.08) |
| DST-2-16**# | 16 VCT @ 0.07 A / 8 V @ 0.14 A | 1.1 | Dual 115/230 V | 8 Pin | 0.17 (0.08) |
| ST-3-16*# | 16 VCT @ 0.15 A (3) / 8 V @ 0.3 A (6) | 2.4 | Single 115 V | 6 Pin | 0.25 (0.11) |
| DST-3-16*# | 16 VCT @ 0.15 A (3) / 8 V @ 0.3 A (6) | 2.4 | Dual 115/230 V | 8 Pin | 0.25 (0.11) |
| ST-4-16*# | 16 VCT @ 0.4 A (7) / 8 V @ 0.8 A (10) | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-16*# | 16 VCT @ 0.4 A (7) / 8 V @ 0.8 A (10) | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-16*# | 16 VCT @ 0.8 A (10) / 8 V @ 1.6 A (12) | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-16*# | 16 VCT @ 0.8 A (10) / 8 V @ 1.6 A (12) | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-16 | 16 VCT @ 1.25 A / 8 V @ 2.5 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-16 | 16 VCT @ 1.25 A / 8 V @ 2.5 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-16 | 16 VCT @ 2.25 A / 8 V @ 4.5 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-16 | 16 VCT @ 2.25 A / 8 V @ 4.5 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-20**# | 20 VCT @ 0.055 A / 10 V @ 0.11 A | 1.1 | Single 115 V | 6 Pin | 0.17 (0.08) |
| DST-2-20**# | 20 VCT @ 0.055 A / 10 V @ 0.11 A | 1.1 | Dual 115/230 V | 8 Pin | 0.17 (0.08) |
| ST-3-20*# | 20 VCT @ 0.12 A (2) / 10 V @ 0.24 A (5) | 2.4 | Single 115 V | 6 Pin | 0.25 (0.11) |
| DST-3-20*# | 20 VCT @ 0.12 A (2) / 10 V @ 0.24 A (5) | 2.4 | Dual 115/230 V | 8 Pin | 0.25 (0.11) |
| ST-4-20*# | 20 VCT @ 0.3 A (6) / 10 V @ 0.6 A (9) | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-20*# | 20 VCT @ 0.3 A (6) / 10 V @ 0.6 A (9) | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-20*# | 20 VCT @ 0.6 A (9) / 10 V @ 1.2 A (11) | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-20*# | 20 VCT @ 0.6 A (9) / 10 V @ 1.2 A (11) | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-20 | 20 VCT @ 1.0 A / 10 V @ 2.0 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-20 | 20 VCT @ 1.0 A / 10 V @ 2.0 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-20 | 20 VCT @ 1.8 A / 10 V @ 3.6 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-20 | 20 VCT @ 1.8 A / 10 V @ 3.6 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-24**# | 24 VCT @ 0.045 A / 12 V @ 0.09 A | 1.1 | Single 115 V | 6 Pin | 0.17 (0.08) |
| DST-2-24**# | 24 VCT @ 0.045 A / 12 V @ 0.09 A | 1.1 | Dual 115/230 V | 8 Pin | 0.17 (0.08) |
| ST-3-24*# | 24 VCT @ 0.1 A (1) / 12 V @ 0.2 A (4) | 2.4 | Single 115 V | 6 Pin | 0.25 (0.11) |
| DST-3-24*# | 24 VCT @ 0.1 A (1) / 12 V @ 0.2 A (4) | 2.4 | Dual 115/230 V | 8 Pin | 0.25 (0.11) |
| ST-4-24*# | 24 VCT @ 0.25 A (5) / 12 V @ 0.5 A (9) | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-24*# | 24 VCT @ 0.25 A (5) / 12 V @ 0.5 A (9) | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-24*# | 24 VCT @ 0.5 A (9) / 12 V @ 1.0 A (11) | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-24*# | 24 VCT @ 0.5 A (9) / 12 V @ 1.0 A (11) | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-24 | 24 VCT @ 0.8 A / 12 V @ 1.6 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-24 | 24 VCT @ 0.8 A / 12 V @ 1.6 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-24 | 24 VCT @ 1.5 A / 12 V @ 3.0 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-24 | 24 VCT @ 1.5 A / 12 V @ 3.0 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-28 | 28 VCT @ 0.04 A / 14 V @ 0.08 A | 1.1 | Single 115 V | 6 Pin | 0.17 (0.08) |
| DST-2-28 | 28 VCT @ 0.04 A / 14 V @ 0.08 A | 1.1 | Dual 115/230 V | 8 Pin | 0.17 (0.08) |
| ST-3-28 | 28 VCT @ 0.085 A / 14 V @ 0.17 A | 2.4 | Single 115 V | 6 Pin | 0.25 (0.11) |
| DST-3-28 | 28 VCT @ 0.085 A / 14 V @ 0.17 A | 2.4 | Dual 115/230 V | 8 Pin | 0.25 (0.11) |
| ST-4-28 | 28 VCT @ 0.2 A / 14 V @ 0.4 A | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-28 | 28 VCT @ 0.2 A / 14 V @ 0.4 A | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-28 | 28 VCT @ 0.42 A / 14 V @ 0.84 A | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-28 | 28 VCT @ 0.42 A / 14 V @ 0.84 A | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-28 | 28 VCT @ 0.7 A / 14 V @ 1.4 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-28 | 28 VCT @ 0.7 A / 14 V @ 1.4 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-28 | 28 VCT @ 1.3 A / 14 V @ 2.6 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-28 | 28 VCT @ 1.3 A / 14 V @ 2.6 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-36 | 36 VCT @ 0.03 A / 18 V @ 0.06 A | 1.1 | Single 115 V | 6 Pin | 0.17 (0.08) |
| DST-2-36 | 36 VCT @ 0.03 A / 18 V @ 0.06 A | 1.1 | Dual 115/230 V | 8 Pin | 0.17 (0.08) |
| ST-3-36 | 36 VCT @ 0.065 A / 18 V @ 0.13 A | 2.4 | Single 115 V | 6 Pin | 0.25 (0.11) |
| DST-3-36 | 36 VCT @ 0.065 A / 18 V @ 0.13 A | 2.4 | Dual 115/230 V | 8 Pin | 0.25 (0.11) |
| ST-4-36 | 36 VCT @ 0.17 A / 18 V @ 0.34 A | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-36 | 36 VCT @ 0.17 A / 18 V @ 0.34 A | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-36 | 36 VCT @ 0.35 A / 18 V @ 0.7 A | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-36 | 36 VCT @ 0.35 A / 18 V @ 0.7 A | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-36 | 36 VCT @ 0.55 A / 18 V @ 1.1 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-36 | 36 VCT @ 0.55 A / 18 V @ 1.1 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-36 | 36 VCT @ 1.0 A / 18 V @ 2.0 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-36 | 36 VCT @ 1.0 A / 18 V @ 2.0 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-48 | 48 VCT @ 0.023 A / 24 V @ 0.046 A | 1.1 | Single 115 V | 6 Pin | 0.17 (0.08) |
| DST-2-48 | 48 VCT @ 0.023 A / 24 V @ 0.046 A | 1.1 | Dual 115/230 V | 8 Pin | 0.17 (0.08) |
| ST-3-48 | 48 VCT @ 0.05 A / 24 V @ 0.1 A | 2.4 | Single 115 V | 6 Pin | 0.25 (0.11) |
| DST-3-48 | 48 VCT @ 0.05 A / 24 V @ 0.1 A | 2.4 | Dual 115/230 V | 8 Pin | 0.25 (0.11) |
| ST-4-48 | 48 VCT @ 0.125 A / 24 V @ 0.25 A | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-48 | 48 VCT @ 0.125 A / 24 V @ 0.25 A | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-48 | 48 VCT @ 0.25 A / 24 V @ 0.5 A | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-48 | 48 VCT @ 0.25 A / 24 V @ 0.5 A | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-48 | 48 VCT @ 0.4 A / 24 V @ 0.8 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-48 | 48 VCT @ 0.4 A / 24 V @ 0.8 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-48 | 48 VCT @ 0.75 A / 24 V @ 1.5 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-48 | 48 VCT @ 0.75 A / 24 V @ 1.5 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-56 | 56 VCT @ 0.02 A / 28 V @ 0.04 A | 1.1 | Single 115 V | 6 Pin | 0.17 (0.08) |
| DST-2-56 | 56 VCT @ 0.02 A / 28 V @ 0.04 A | 1.1 | Dual 115/230 V | 8 Pin | 0.17 (0.08) |
| ST-3-56 | 56 VCT @ 0.045 A / 28 V @ 0.09 A | 2.4 | Single 115 V | 6 Pin | 0.25 (0.11) |
| DST-3-56 | 56 VCT @ 0.045 A / 28 V @ 0.09 A | 2.4 | Dual 115/230 V | 8 Pin | 0.25 (0.11) |
| ST-4-56 | 56 VCT @ 0.11 A / 28 V @ 0.22 A | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-56 | 56 VCT @ 0.11 A / 28 V @ 0.22 A | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-56 | 56 VCT @ 0.22 A / 28 V @ 0.44 A | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-56 | 56 VCT @ 0.22 A / 28 V @ 0.44 A | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-56 | 56 VCT @ 0.35 A / 28 V @ 0.7 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-56 | 56 VCT @ 0.35 A / 28 V @ 0.7 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-56 | 56 VCT @ 0.65A / 28 V @ 1.3 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-56 | 56 VCT @ 0.65A / 28 V @ 1.3 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-120 | 120 VCT @ 0.01 A / 60 V @ 0.02 A | 1.1 | Single 115 V | 6 Pin | 0.17 (0.08) |
| DST-2-120 | 120 VCT @ 0.01 A / 60 V @ 0.02 A | 1.1 | Dual 115/230 V | 8 Pin | 0.17 (0.08) |
| ST-3-120 | 120 VCT @ 0.02 A / 60 V @ 0.04 A | 2.4 | Single 115 V | 6 Pin | 0.25 (0.11) |
| DST-3-120 | 120 VCT @ 0.02 A / 60 V @ 0.04 A | 2.4 | Dual 115/230 V | 8 Pin | 0.25 (0.11) |
| ST-4-120 | 120 VCT @ 0.05 A / 60 V @ 0.1 A | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-120 | 120 VCT @ 0.05 A / 60 V @ 0.1 A | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-120 | 120 VCT @ 0.1 A / 60 V @ 0.2 A | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-120 | 120 VCT @ 0.1 A / 60 V @ 0.2 A | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-120 | 120 VCT @ 0.16 A / 60 V @ 0.32 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-120 | 120 VCT @ 0.16 A / 60 V @ 0.32 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-120 | 120 VCT @ 0.3 A / 60 V @ 0.6 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-120 | 120 VCT @ 0.3 A / 60 V @ 0.6 A | 36 | Dual 115/230 V | 8 Pin | 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 | ||||
| Mounting Hardware | See chart (ST-MS screw, ST-MN nut available from Signal) | ||||
| Dimensions (Size 4): L x W x H | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | ||||
| Dimensions (Size 5): L x W x H | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | ||||
| Dimensions (Size 6): L x W x H | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | ||||
| Dimensions (Size 7): L x W x H | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | ||||
| Size 7 Mounting Holes | 4 holes on 2.18" x 1.75" centers for #6 screws. | ||||
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.
2411272143_Bel-Fuse-DST-6-36_C17632588.pdf
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible