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Specifications
Secondary Winding:
2
Isolation Voltage(Vrms):
2.5kV
Primary Winding(s):
2
Secondary Side Voltage:
24V;48V
Output Current:
250mA;125mA
Primary Side Voltage:
115V;230V
Mfr. Part #:
DST-4-48
Package:
Through Hole-8P,41.3x33.3mm
Key Attributes
Model Number:
DST-4-48
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. These transformers are RoHS compliant and carry multiple agency certifications.
Product Attributes
- Brand: Signal Transformer
- Series: ST / DST Series Split/Tran
- Construction: Split Bobbin with Dual Cavity Platform
- Isolation: Superior isolation and low capacitive coupling
- Pin Construction: Rigid
- 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
- Custom Versions: Available upon request
Technical Specifications
| Part Number | Secondary RMS Rating (Series) | Secondary RMS Rating (Parallel) | VA Rating | Pin Configuration | Dimensions (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 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) |
| ST-3-10*# / DST-3-10*# | 10 VCT @ 0.25 A | 5 V @ 0.5 A | 2.4 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) |
| ST-4-10*# / DST-4-10*# | 10 VCT @ 0.6 A | 5 V @ 1.2 A | 6 | 6 Pin (ST) / 8 Pin (DST) | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) |
| ST-5-10*# / DST-5-10*# | 10 VCT @ 1.2 A | 5 V @ 2.4 A | 12 | 6 Pin (ST) / 8 Pin (DST) | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) |
| ST-6-10 / DST-6-10 | 10 VCT @ 2.0 A | 5 V @ 4.0 A | 20 | 6 Pin (ST) / 8 Pin (DST) | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) |
| ST-7-10 / DST-7-10 | 10 VCT @ 3.6 A | 5 V @ 7.2 A | 36 | 6 Pin (ST) / 8 Pin (DST) | 2.62 (66.7) x 2.18 (55.5) x 1.59 (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 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) |
| ST-3-12*# / DST-3-12*# | 12.6 VCT @ 0.2 A | 6.3 V @ 0.4 A | 2.4 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) |
| ST-4-12*# / DST-4-12*# | 12.6 VCT @ 0.5 A | 6.3 V @ 1.0 A | 6 | 6 Pin (ST) / 8 Pin (DST) | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) |
| ST-5-12*# / DST-5-12*# | 12.6 VCT @ 1.0 A | 6.3 V @ 2.0 A | 12 | 6 Pin (ST) / 8 Pin (DST) | 1.91 (48.4) x 1.59 (40.4) x 1.45 (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 | 6 Pin (ST) / 8 Pin (DST) | 2.25 (57.2) x 1.88 (47.8) x 1.45 (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 | 6 Pin (ST) / 8 Pin (DST) | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) |
| ST-2-16**# / DST-2-16**# | 16 VCT @ 0.07 A | 8 V @ 0.14 A | 1.1 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) |
| ST-3-16*# / DST-3-16*# | 16 VCT @ 0.15 A | 8 V @ 0.3 A | 2.4 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) |
| ST-4-16*# / DST-4-16*# | 16 VCT @ 0.4 A | 8 V @ 0.8 A | 6 | 6 Pin (ST) / 8 Pin (DST) | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) |
| ST-5-16*# / DST-5-16*# | 16 VCT @ 0.8 A | 8 V @ 1.6 A | 12 | 6 Pin (ST) / 8 Pin (DST) | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) |
| ST-6-16 / DST-6-16 | 16 VCT @ 1.25 A | 8 V @ 2.5 A | 20 | 6 Pin (ST) / 8 Pin (DST) | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) |
| ST-7-16 / DST-7-16 | 16 VCT @ 2.25 A | 8 V @ 4.5 A | 36 | 6 Pin (ST) / 8 Pin (DST) | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) |
| ST-2-20**# / DST-2-20**# | 20 VCT @ 0.055 A | 10 V @ 0.11 A | 1.1 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) |
| ST-3-20*# / DST-3-20*# | 20 VCT @ 0.12 A | 10 V @ 0.24 A | 2.4 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) |
| ST-4-20*# / DST-4-20*# | 20 VCT @ 0.3 A | 10 V @ 0.6 A | 6 | 6 Pin (ST) / 8 Pin (DST) | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) |
| ST-5-20*# / DST-5-20*# | 20 VCT @ 0.6 A | 10 V @ 1.2 A | 12 | 6 Pin (ST) / 8 Pin (DST) | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) |
| ST-6-20 / DST-6-20 | 20 VCT @ 1.0 A | 10 V @ 2.0 A | 20 | 6 Pin (ST) / 8 Pin (DST) | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) |
| ST-7-20 / DST-7-20 | 20 VCT @ 1.8 A | 10 V @ 3.6 A | 36 | 6 Pin (ST) / 8 Pin (DST) | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) |
| ST-2-24**# / DST-2-24**# | 24 VCT @ 0.045 A | 12 V @ 0.09 A | 1.1 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) |
| ST-3-24*# / DST-3-24*# | 24 VCT @ 0.1 A | 12 V @ 0.2 A | 2.4 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) |
| ST-4-24*# / DST-4-24*# | 24 VCT @ 0.25 A | 12 V @ 0.5 A | 6 | 6 Pin (ST) / 8 Pin (DST) | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) |
| ST-5-24*# / DST-5-24*# | 24 VCT @ 0.5 A | 12 V @ 1.0 A | 12 | 6 Pin (ST) / 8 Pin (DST) | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) |
| ST-6-24 / DST-6-24 | 24 VCT @ 0.8 A | 12 V @ 1.6 A | 20 | 6 Pin (ST) / 8 Pin (DST) | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) |
| ST-7-24 / DST-7-24 | 24 VCT @ 1.5 A | 12 V @ 3.0 A | 36 | 6 Pin (ST) / 8 Pin (DST) | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) |
| ST-2-28 / DST-2-28 | 28 VCT @ 0.04 A | 14 V @ 0.08 A | 1.1 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) |
| ST-3-28 / DST-3-28 | 28 VCT @ 0.085 A | 14 V @ 0.17 A | 2.4 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) |
| ST-4-28 / DST-4-28 | 28 VCT @ 0.2 A | 14 V @ 0.4 A | 6 | 6 Pin (ST) / 8 Pin (DST) | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) |
| ST-5-28 / DST-5-28 | 28 VCT @ 0.42 A | 14 V @ 0.84 A | 12 | 6 Pin (ST) / 8 Pin (DST) | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) |
| ST-6-28 / DST-6-28 | 28 VCT @ 0.7 A | 14 V @ 1.4 A | 20 | 6 Pin (ST) / 8 Pin (DST) | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) |
| ST-7-28 / DST-7-28 | 28 VCT @ 1.3 A | 14 V @ 2.6 A | 36 | 6 Pin (ST) / 8 Pin (DST) | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) |
| ST-2-36 / DST-2-36 | 36 VCT @ 0.03 A | 18 V @ 0.06 A | 1.1 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) |
| ST-3-36 / DST-3-36 | 36 VCT @ 0.065 A | 18 V @ 0.13 A | 2.4 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) |
| ST-4-36 / DST-4-36 | 36 VCT @ 0.17 A | 18 V @ 0.34 A | 6 | 6 Pin (ST) / 8 Pin (DST) | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) |
| ST-5-36 / DST-5-36 | 36 VCT @ 0.35 A | 18 V @ 0.7 A | 12 | 6 Pin (ST) / 8 Pin (DST) | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) |
| ST-6-36 / DST-6-36 | 36 VCT @ 0.55 A | 18 V @ 1.1 A | 20 | 6 Pin (ST) / 8 Pin (DST) | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) |
| ST-7-36 / DST-7-36 | 36 VCT @ 1.0 A | 18 V @ 2.0 A | 36 | 6 Pin (ST) / 8 Pin (DST) | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) |
| ST-2-48 / DST-2-48 | 48 VCT @ 0.023 A | 24 V @ 0.046 A | 1.1 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) |
| ST-3-48 / DST-3-48 | 48 VCT @ 0.05 A | 24 V @ 0.1 A | 2.4 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) |
| ST-4-48 / DST-4-48 | 48 VCT @ 0.125 A | 24 V @ 0.25 A | 6 | 6 Pin (ST) / 8 Pin (DST) | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) |
| ST-5-48 / DST-5-48 | 48 VCT @ 0.25 A | 24 V @ 0.5 A | 12 | 6 Pin (ST) / 8 Pin (DST) | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) |
| ST-6-48 / DST-6-48 | 48 VCT @ 0.4 A | 24 V @ 0.8 A | 20 | 6 Pin (ST) / 8 Pin (DST) | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) |
| ST-7-48 / DST-7-48 | 48 VCT @ 0.75 A | 24 V @ 1.5 A | 36 | 6 Pin (ST) / 8 Pin (DST) | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) |
| ST-2-56 / DST-2-56 | 56 VCT @ 0.02 A | 28 V @ 0.04 A | 1.1 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) |
| ST-3-56 / DST-3-56 | 56 VCT @ 0.045 A | 28 V @ 0.09 A | 2.4 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) |
| ST-4-56 / DST-4-56 | 56 VCT @ 0.11 A | 28 V @ 0.22 A | 6 | 6 Pin (ST) / 8 Pin (DST) | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) |
| ST-5-56 / DST-5-56 | 56 VCT @ 0.22 A | 28 V @ 0.44 A | 12 | 6 Pin (ST) / 8 Pin (DST) | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) |
| ST-6-56 / DST-6-56 | 56 VCT @ 0.35 A | 28 V @ 0.7 A | 20 | 6 Pin (ST) / 8 Pin (DST) | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) |
| ST-7-56 / DST-7-56 | 56 VCT @ 0.65A | 28 V @ 1.3 A | 36 | 6 Pin (ST) / 8 Pin (DST) | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) |
| ST-2-120 / DST-2-120 | 120 VCT @ 0.01 A | 60 V @ 0.02 A | 1.1 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) |
| ST-3-120 / DST-3-120 | 120 VCT @ 0.02 A | 60 V @ 0.04 A | 2.4 | 6 Pin (ST) / 8 Pin (DST) | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) |
| ST-4-120 / DST-4-120 | 120 VCT @ 0.05 A | 60 V @ 0.1 A | 6 | 6 Pin (ST) / 8 Pin (DST) | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) |
| ST-5-120 / DST-5-120 | 120 VCT @ 0.1 A | 60 V @ 0.2 A | 12 | 6 Pin (ST) / 8 Pin (DST) | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) |
| ST-6-120 / DST-6-120 | 120 VCT @ 0.16 A | 60 V @ 0.32 A | 20 | 6 Pin (ST) / 8 Pin (DST) | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) |
| ST-7-120 / DST-7-120 | 120 VCT @ 0.3 A | 60 V @ 0.6 A | 36 | 6 Pin (ST) / 8 Pin (DST) | 2.62 (66.7) x 2.18 (55.5) x 1.59 (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 (Optional Mounting Screw & Nut: ST-MS (screw) and ST-MN (nut) available from Signal) | |||||
| Size 7 Mounting Holes | 4 mounting holes on 2.18 x 1.75 centers for #6 screws. | |||||
| Recommended Secondary Fuse Values (Referenced by number in Part Number Selection table) | (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 | |||||
Specifications subject to change without notice.
2411272143_Bel-Fuse-DST-4-48_C17423562.pdf
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