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Specifications
Secondary Winding:
2
Isolation Voltage(Vrms):
2.5kV
Primary Winding(s):
2
Secondary Side Voltage:
6.3V;12.6V
Output Current:
1A;500mA
Primary Side Voltage:
115V;230V
Mfr. Part #:
DST-4-12
Package:
Through Hole-8P,41.3x33.3mm
Key Attributes
Model Number:
DST-4-12
Product Description
Product Overview
The Signal ST/DST Series Split/Tran Specialty Purpose & Class 2 Transformers are designed with a split bobbin, dual cavity platform to provide superior isolation and low capacitive coupling. These transformers feature rigid pin construction for easier board insertion and enhanced reliability. They are suitable for a wide range of applications requiring high isolation and efficient power conversion, with options for single or dual primaries and series or parallel secondaries. The series is UL, CSA, and cCSAus certified, and RoHS compliant.
Product Attributes
- Brand: Signal Transformer
- Series: ST / DST Series Split/Tran
- Construction: Split Bobbin, Dual Cavity
- Insulation System: Class F, 155 C
- Compliance: RoHS Compliant
- 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
| Model | Power (VA) | Secondary RMS Rating (Series) | Secondary RMS Rating (Parallel) | Primary Voltage | Frequency (Hz) | Dielectric Strength (Vrms Hipot) | Dimensions (L x W x H) (inches) | Weight (lbs) | Mounting |
|---|---|---|---|---|---|---|---|---|---|
| ST-2-10**# | 1.1 | 10 VCT @ 0.11 A | 5 V @ 0.22 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 6 Pin |
| DST-2-10**# | 1.1 | 10 VCT @ 0.11 A | 5 V @ 0.22 A | 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 8 Pin |
| ST-3-10*# | 2.4 | 10 VCT @ 0.25 A | 5 V @ 0.5 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 6 Pin |
| DST-3-10*# | 2.4 | 10 VCT @ 0.25 A | 5 V @ 0.5 A | 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 8 Pin |
| ST-4-10*# | 6 | 10 VCT @ 0.6 A | 5 V @ 1.2 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 6 Pin |
| DST-4-10*# | 6 | 10 VCT @ 0.6 A | 5 V @ 1.2 A | 115/230 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 8 Pin |
| ST-5-10*# | 12 | 10 VCT @ 1.2 A | 5 V @ 2.4 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 6 Pin |
| DST-5-10*# | 12 | 10 VCT @ 1.2 A | 5 V @ 2.4 A | 115/230 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 8 Pin |
| ST-6-10 | 20 | 10 VCT @ 2.0 A | 5 V @ 4.0 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 6 Pin |
| DST-6-10 | 20 | 10 VCT @ 2.0 A | 5 V @ 4.0 A | 115/230 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 8 Pin |
| ST-7-10 | 36 | 10 VCT @ 3.6 A | 5 V @ 7.2 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 6 Pin |
| DST-7-10 | 36 | 10 VCT @ 3.6 A | 5 V @ 7.2 A | 115/230 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 8 Pin |
| ST-2-12**# | 1.1 | 12.6 VCT @ 0.09 A | 6.3 V @ 0.18 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 6 Pin |
| DST-2-12**# | 1.1 | 12.6 VCT @ 0.09 A | 6.3 V @ 0.18 A | 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 8 Pin |
| ST-3-12*# | 2.4 | 12.6 VCT @ 0.2 A | 6.3 V @ 0.4 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 6 Pin |
| DST-3-12*# | 2.4 | 12.6 VCT @ 0.2 A | 6.3 V @ 0.4 A | 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 8 Pin |
| ST-4-12*# | 6 | 12.6 VCT @ 0.5 A | 6.3 V @ 1.0 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 6 Pin |
| DST-4-12*# | 6 | 12.6 VCT @ 0.5 A | 6.3 V @ 1.0 A | 115/230 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 8 Pin |
| ST-5-12*# | 12 | 12.6 VCT @ 1.0 A | 6.3 V @ 2.0 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 6 Pin |
| DST-5-12*# | 12 | 12.6 VCT @ 1.0 A | 6.3 V @ 2.0 A | 115/230 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 8 Pin |
| ST-6-12 | 20 | 12.6 VCT @ 1.6 A | 6.3 V @ 3.2 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 6 Pin |
| DST-6-12 | 20 | 12.6 VCT @ 1.6 A | 6.3 V @ 3.2 A | 115/230 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 8 Pin |
| ST-7-12 | 36 | 12.6 VCT @ 2.85 A | 6.3 V @ 5.7 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 6 Pin |
| DST-7-12 | 36 | 12.6 VCT @ 2.85 A | 6.3 V @ 5.7 A | 115/230 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 8 Pin |
| ST-2-16**# | 1.1 | 16 VCT @ 0.07 A | 8 V @ 0.14 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 6 Pin |
| DST-2-16**# | 1.1 | 16 VCT @ 0.07 A | 8 V @ 0.14 A | 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 8 Pin |
| ST-3-16*# | 2.4 | 16 VCT @ 0.15 A | 8 V @ 0.3 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 6 Pin |
| DST-3-16*# | 2.4 | 16 VCT @ 0.15 A | 8 V @ 0.3 A | 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 8 Pin |
| ST-4-16*# | 6 | 16 VCT @ 0.4 A | 8 V @ 0.8 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 6 Pin |
| DST-4-16*# | 6 | 16 VCT @ 0.4 A | 8 V @ 0.8 A | 115/230 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 8 Pin |
| ST-5-16*# | 12 | 16 VCT @ 0.8 A | 8 V @ 1.6 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 6 Pin |
| DST-5-16*# | 12 | 16 VCT @ 0.8 A | 8 V @ 1.6 A | 115/230 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 8 Pin |
| ST-6-16 | 20 | 16 VCT @ 1.25 A | 8 V @ 2.5 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 6 Pin |
| DST-6-16 | 20 | 16 VCT @ 1.25 A | 8 V @ 2.5 A | 115/230 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 8 Pin |
| ST-7-16 | 36 | 16 VCT @ 2.25 A | 8 V @ 4.5 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 6 Pin |
| DST-7-16 | 36 | 16 VCT @ 2.25 A | 8 V @ 4.5 A | 115/230 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 8 Pin |
| ST-2-20**# | 1.1 | 20 VCT @ 0.055 A | 10 V @ 0.11 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 6 Pin |
| DST-2-20**# | 1.1 | 20 VCT @ 0.055 A | 10 V @ 0.11 A | 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 8 Pin |
| ST-3-20*# | 2.4 | 20 VCT @ 0.12 A | 10 V @ 0.24 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 6 Pin |
| DST-3-20*# | 2.4 | 20 VCT @ 0.12 A | 10 V @ 0.24 A | 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 8 Pin |
| ST-4-20*# | 6 | 20 VCT @ 0.3 A | 10 V @ 0.6 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 6 Pin |
| DST-4-20*# | 6 | 20 VCT @ 0.3 A | 10 V @ 0.6 A | 115/230 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 8 Pin |
| ST-5-20*# | 12 | 20 VCT @ 0.6 A | 10 V @ 1.2 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 6 Pin |
| DST-5-20*# | 12 | 20 VCT @ 0.6 A | 10 V @ 1.2 A | 115/230 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 8 Pin |
| ST-6-20 | 20 | 20 VCT @ 1.0 A | 10 V @ 2.0 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 6 Pin |
| DST-6-20 | 20 | 20 VCT @ 1.0 A | 10 V @ 2.0 A | 115/230 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 8 Pin |
| ST-7-20 | 36 | 20 VCT @ 1.8 A | 10 V @ 3.6 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 6 Pin |
| DST-7-20 | 36 | 20 VCT @ 1.8 A | 10 V @ 3.6 A | 115/230 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 8 Pin |
| ST-2-24**# | 1.1 | 24 VCT @ 0.045 A | 12 V @ 0.09 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 6 Pin |
| DST-2-24**# | 1.1 | 24 VCT @ 0.045 A | 12 V @ 0.09 A | 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 8 Pin |
| ST-3-24*# | 2.4 | 24 VCT @ 0.1 A | 12 V @ 0.2 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 6 Pin |
| DST-3-24*# | 2.4 | 24 VCT @ 0.1 A | 12 V @ 0.2 A | 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 8 Pin |
| ST-4-24*# | 6 | 24 VCT @ 0.25 A | 12 V @ 0.5 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 6 Pin |
| DST-4-24*# | 6 | 24 VCT @ 0.25 A | 12 V @ 0.5 A | 115/230 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 8 Pin |
| ST-5-24*# | 12 | 24 VCT @ 0.5 A | 12 V @ 1.0 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 6 Pin |
| DST-5-24*# | 12 | 24 VCT @ 0.5 A | 12 V @ 1.0 A | 115/230 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 8 Pin |
| ST-6-24 | 20 | 24 VCT @ 0.8 A | 12 V @ 1.6 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 6 Pin |
| DST-6-24 | 20 | 24 VCT @ 0.8 A | 12 V @ 1.6 A | 115/230 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 8 Pin |
| ST-7-24 | 36 | 24 VCT @ 1.5 A | 12 V @ 3.0 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 6 Pin |
| DST-7-24 | 36 | 24 VCT @ 1.5 A | 12 V @ 3.0 A | 115/230 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 8 Pin |
| ST-2-28 | 1.1 | 28 VCT @ 0.04 A | 14 V @ 0.08 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 6 Pin |
| DST-2-28 | 1.1 | 28 VCT @ 0.04 A | 14 V @ 0.08 A | 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 8 Pin |
| ST-3-28 | 2.4 | 28 VCT @ 0.085 A | 14 V @ 0.17 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 6 Pin |
| DST-3-28 | 2.4 | 28 VCT @ 0.085 A | 14 V @ 0.17 A | 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 8 Pin |
| ST-4-28 | 6 | 28 VCT @ 0.2 A | 14 V @ 0.4 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 6 Pin |
| DST-4-28 | 6 | 28 VCT @ 0.2 A | 14 V @ 0.4 A | 115/230 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 8 Pin |
| ST-5-28 | 12 | 28 VCT @ 0.42 A | 14 V @ 0.84 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 6 Pin |
| DST-5-28 | 12 | 28 VCT @ 0.42 A | 14 V @ 0.84 A | 115/230 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 8 Pin |
| ST-6-28 | 20 | 28 VCT @ 0.7 A | 14 V @ 1.4 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 6 Pin |
| DST-6-28 | 20 | 28 VCT @ 0.7 A | 14 V @ 1.4 A | 115/230 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 8 Pin |
| ST-7-28 | 36 | 28 VCT @ 1.3 A | 14 V @ 2.6 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 6 Pin |
| DST-7-28 | 36 | 28 VCT @ 1.3 A | 14 V @ 2.6 A | 115/230 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 8 Pin |
| ST-2-36 DST-2-36 | 1.1 | 36 VCT @ 0.03 A | 18 V @ 0.06 A | 115 V / 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 6 Pin / 8 Pin |
| ST-3-36 DST-3-36 | 2.4 | 36 VCT @ 0.065 A | 18 V @ 0.13 A | 115 V / 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 6 Pin / 8 Pin |
| ST-4-36 DST-4-36 | 6 | 36 VCT @ 0.17 A | 18 V @ 0.34 A | 115 V / 115/230 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 6 Pin / 8 Pin |
| ST-5-36 DST-5-36 | 12 | 36 VCT @ 0.35 A | 18 V @ 0.7 A | 115 V / 115/230 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 6 Pin / 8 Pin |
| ST-6-36 DST-6-36 | 20 | 36 VCT @ 0.55 A | 18 V @ 1.1 A | 115 V / 115/230 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 6 Pin / 8 Pin |
| ST-7-36 DST-7-36 | 36 | 36 VCT @ 1.0 A | 18 V @ 2.0 A | 115 V / 115/230 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 6 Pin / 8 Pin |
| ST-2-48 DST-2-48 | 1.1 | 48 VCT @ 0.023 A | 24 V @ 0.046 A | 115 V / 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 6 Pin / 8 Pin |
| ST-3-48 DST-3-48 | 2.4 | 48 VCT @ 0.05 A | 24 V @ 0.1 A | 115 V / 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 6 Pin / 8 Pin |
| ST-4-48 DST-4-48 | 6 | 48 VCT @ 0.125 A | 24 V @ 0.25 A | 115 V / 115/230 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 6 Pin / 8 Pin |
| ST-5-48 DST-5-48 | 12 | 48 VCT @ 0.25 A | 24 V @ 0.5 A | 115 V / 115/230 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 6 Pin / 8 Pin |
| ST-6-48 DST-6-48 | 20 | 48 VCT @ 0.4 A | 24 V @ 0.8 A | 115 V / 115/230 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 6 Pin / 8 Pin |
| ST-7-48 DST-7-48 | 36 | 48 VCT @ 0.75 A | 24 V @ 1.5 A | 115 V / 115/230 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 6 Pin / 8 Pin |
| ST-2-56 DST-2-56 | 1.1 | 56 VCT @ 0.02 A | 28 V @ 0.04 A | 115 V / 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 6 Pin / 8 Pin |
| ST-3-56 DST-3-56 | 2.4 | 56 VCT @ 0.045 A | 28 V @ 0.09 A | 115 V / 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 6 Pin / 8 Pin |
| ST-4-56 DST-4-56 | 6 | 56 VCT @ 0.11 A | 28 V @ 0.22 A | 115 V / 115/230 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 6 Pin / 8 Pin |
| ST-5-56 DST-5-56 | 12 | 56 VCT @ 0.22 A | 28 V @ 0.44 A | 115 V / 115/230 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 6 Pin / 8 Pin |
| ST-6-56 DST-6-56 | 20 | 56 VCT @ 0.35 A | 28 V @ 0.7 A | 115 V / 115/230 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 6 Pin / 8 Pin |
| ST-7-56 DST-7-56 | 36 | 56 VCT @ 0.65 A | 28 V @ 1.3 A | 115 V / 115/230 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 6 Pin / 8 Pin |
| ST-2-120 DST-2-120 | 1.1 | 120 VCT @ 0.01 A | 60 V @ 0.02 A | 115 V / 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | 6 Pin / 8 Pin |
| ST-3-120 DST-3-120 | 2.4 | 120 VCT @ 0.02 A | 60 V @ 0.04 A | 115 V / 115/230 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | 6 Pin / 8 Pin |
| ST-4-120 DST-4-120 | 6 | 120 VCT @ 0.05 A | 60 V @ 0.1 A | 115 V / 115/230 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | 6 Pin / 8 Pin |
| ST-5-120 DST-5-120 | 12 | 120 VCT @ 0.1 A | 60 V @ 0.2 A | 115 V / 115/230 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | 6 Pin / 8 Pin |
| ST-6-120 DST-6-120 | 20 | 120 VCT @ 0.16 A | 60 V @ 0.32 A | 115 V / 115/230 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | 6 Pin / 8 Pin |
| ST-7-120 DST-7-120 | 36 | 120 VCT @ 0.3 A | 60 V @ 0.6 A | 115 V / 115/230 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | 6 Pin / 8 Pin |
Note: Recommended secondary fuse values are indicated by numbers in parentheses next to the secondary ratings in the part number selection chart. Mounting hardware (screws and nuts) are available separately.
2411272143_Bel-Fuse-DST-4-12_C17238014.pdf
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