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Specifications
Secondary Winding:
2
Isolation Voltage(Vrms):
2.5kV
Primary Winding(s):
2
Secondary Side Voltage:
8V;16V
Output Current:
800mA;400mA
Primary Side Voltage:
115V;230V
Mfr. Part #:
DST-4-16
Package:
Through Hole-8P,41.3x33.3mm
Key Attributes
Model Number:
DST-4-16
Product Description
Product Overview
The Signal ST/DST Series Split/Tran Specialty Purpose & Class 2 Transformers are designed for printed circuit board mounting, featuring a split bobbin construction with dual cavities for superior isolation and low capacitive coupling. They offer rigid pin construction for easier board insertion and enhanced reliability. These transformers 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. Agency certifications include UL and CSA recognition, and they are RoHS compliant.
Product Attributes
- Brand: Signal Transformer (Bel Fuse)
- Series: ST / DST Series Split/Tran
- Construction: Split Bobbin with Dual Cavity
- Isolation: High Isolation, 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 (#)
- CSA certified as Inherently Limited (*)
- CSA certified as Non Inherently Limited (-)
- UL Recognized UL5085-3, Inherently Limited File # E116583 (#)
- Custom versions: Available upon request
Technical Specifications
| Part Number | Secondary RMS Rating | Power (VA) | Size (L x W x H) | 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 in (34.9 x 28.6 x 24.6 mm) | 0.17 (0.08) |
| ST-3-10*# / DST-3-10*# | 10 VCT @ 0.25 A / 5 V @ 0.5 A | 2.4 | 1.37 x 1.12 x 1.21 in (34.9 x 28.6 x 30.8 mm) | 0.25 (0.11) |
| ST-4-10*# / DST-4-10*# | 10 VCT @ 0.6 A / 5 V @ 1.2 A | 6 | 1.62 x 1.31 x 1.31 in (41.3 x 33.3 x 33.3 mm) | 0.44 (0.20) |
| ST-5-10*# / DST-5-10*# | 10 VCT @ 1.2 A / 5 V @ 2.4 A | 12 | 1.91 x 1.59 x 1.45 in (48.4 x 40.4 x 36.9 mm) | 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 in (57.2 x 47.8 x 36.9 mm) | 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 in (66.7 x 55.5 x 40.4 mm) | 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 in (34.9 x 28.6 x 24.6 mm) | 0.17 (0.08) |
| ST-3-12*# / DST-3-12*# | 12.6 VCT @ 0.2 A / 6.3 V @ 0.4 A | 2.4 | 1.37 x 1.12 x 1.21 in (34.9 x 28.6 x 30.8 mm) | 0.25 (0.11) |
| ST-4-12*# / DST-4-12*# | 12.6 VCT @ 0.5 A / 6.3 V @ 1.0 A | 6 | 1.62 x 1.31 x 1.31 in (41.3 x 33.3 x 33.3 mm) | 0.44 (0.20) |
| ST-5-12*# / DST-5-12*# | 12.6 VCT @ 1.0 A / 6.3 V @ 2.0 A | 12 | 1.91 x 1.59 x 1.45 in (48.4 x 40.4 x 36.9 mm) | 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 in (57.2 x 47.8 x 36.9 mm) | 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 in (66.7 x 55.5 x 40.4 mm) | 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 in (34.9 x 28.6 x 24.6 mm) | 0.17 (0.08) |
| ST-3-16*# / DST-3-16*# | 16 VCT @ 0.15 A / 8 V @ 0.3 A | 2.4 | 1.37 x 1.12 x 1.21 in (34.9 x 28.6 x 30.8 mm) | 0.25 (0.11) |
| ST-4-16*# / DST-4-16*# | 16 VCT @ 0.4 A / 8 V @ 0.8 A | 6 | 1.62 x 1.31 x 1.31 in (41.3 x 33.3 x 33.3 mm) | 0.44 (0.20) |
| ST-5-16*# / DST-5-16*# | 16 VCT @ 0.8 A / 8 V @ 1.6 A | 12 | 1.91 x 1.59 x 1.45 in (48.4 x 40.4 x 36.9 mm) | 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 in (57.2 x 47.8 x 36.9 mm) | 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 in (66.7 x 55.5 x 40.4 mm) | 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 in (34.9 x 28.6 x 24.6 mm) | 0.17 (0.08) |
| ST-3-20*# / DST-3-20*# | 20 VCT @ 0.12 A / 10 V @ 0.24 A | 2.4 | 1.37 x 1.12 x 1.21 in (34.9 x 28.6 x 30.8 mm) | 0.25 (0.11) |
| ST-4-20*# / DST-4-20*# | 20 VCT @ 0.3 A / 10 V @ 0.6 A | 6 | 1.62 x 1.31 x 1.31 in (41.3 x 33.3 x 33.3 mm) | 0.44 (0.20) |
| ST-5-20*# / DST-5-20*# | 20 VCT @ 0.6 A / 10 V @ 1.2 A | 12 | 1.91 x 1.59 x 1.45 in (48.4 x 40.4 x 36.9 mm) | 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 in (57.2 x 47.8 x 36.9 mm) | 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 in (66.7 x 55.5 x 40.4 mm) | 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 in (34.9 x 28.6 x 24.6 mm) | 0.17 (0.08) |
| ST-3-24*# / DST-3-24*# | 24 VCT @ 0.1 A / 12 V @ 0.2 A | 2.4 | 1.37 x 1.12 x 1.21 in (34.9 x 28.6 x 30.8 mm) | 0.25 (0.11) |
| ST-4-24*# / DST-4-24*# | 24 VCT @ 0.25 A / 12 V @ 0.5 A | 6 | 1.62 x 1.31 x 1.31 in (41.3 x 33.3 x 33.3 mm) | 0.44 (0.20) |
| ST-5-24*# / DST-5-24*# | 24 VCT @ 0.5 A / 12 V @ 1.0 A | 12 | 1.91 x 1.59 x 1.45 in (48.4 x 40.4 x 36.9 mm) | 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 in (57.2 x 47.8 x 36.9 mm) | 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 in (66.7 x 55.5 x 40.4 mm) | 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 in (34.9 x 28.6 x 24.6 mm) | 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 in (34.9 x 28.6 x 30.8 mm) | 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 in (41.3 x 33.3 x 33.3 mm) | 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 in (48.4 x 40.4 x 36.9 mm) | 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 in (57.2 x 47.8 x 36.9 mm) | 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 in (66.7 x 55.5 x 40.4 mm) | 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 in (34.9 x 28.6 x 24.6 mm) | 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 in (34.9 x 28.6 x 30.8 mm) | 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 in (41.3 x 33.3 x 33.3 mm) | 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 in (48.4 x 40.4 x 36.9 mm) | 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 in (57.2 x 47.8 x 36.9 mm) | 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 in (66.7 x 55.5 x 40.4 mm) | 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 in (34.9 x 28.6 x 24.6 mm) | 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 in (34.9 x 28.6 x 30.8 mm) | 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 in (41.3 x 33.3 x 33.3 mm) | 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 in (48.4 x 40.4 x 36.9 mm) | 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 in (57.2 x 47.8 x 36.9 mm) | 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 in (66.7 x 55.5 x 40.4 mm) | 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 in (34.9 x 28.6 x 24.6 mm) | 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 in (34.9 x 28.6 x 30.8 mm) | 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 in (41.3 x 33.3 x 33.3 mm) | 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 in (48.4 x 40.4 x 36.9 mm) | 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 in (57.2 x 47.8 x 36.9 mm) | 0.80 (0.36) |
| ST-7-56 / DST-7-56 | 56 VCT @ 0.65 A / 28 V @ 1.3 A | 36 | 2.62 x 2.18 x 1.59 in (66.7 x 55.5 x 40.4 mm) | 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 in (34.9 x 28.6 x 24.6 mm) | 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 in (34.9 x 28.6 x 30.8 mm) | 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 in (41.3 x 33.3 x 33.3 mm) | 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 in (48.4 x 40.4 x 36.9 mm) | 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 in (57.2 x 47.8 x 36.9 mm) | 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 in (66.7 x 55.5 x 40.4 mm) | 1.1 (0.50) |
| General Specifications: | ||||
| Power Range: | 1.1 VA to 36 VA | |||
| Dielectric Strength: | 2500 Vrms Hipot | |||
| Primary Configurations: | Single or dual primaries, 115 V or 115/230 V, 50/60 Hz | |||
| Secondary Configurations: | Series or parallel | |||
| Electrostatic Shield: | Not necessary due to split bobbin construction | |||
| Mounting Hardware: | See chart. Optional mounting screw (ST-MS) and nut (ST-MN) available from Signal. Size 7 has 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 footnotes for application) | |||
Specifications subject to change without notice.
2411272143_Bel-Fuse-DST-4-16_C17564884.pdf
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