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Specifications
Secondary Winding:
2
Isolation Voltage(Vrms):
2.5kV
Primary Winding(s):
2
Secondary Side Voltage:
5V;10V
Output Current:
500mA;250mA
Primary Side Voltage:
115V;230V
Mfr. Part #:
DST-3-10
Package:
Through Hole-8P,34.9x28.6mm
Key Attributes
Model Number:
DST-3-10
Product Description
Product Overview
The Signal ST and DST Series Split/Tran Specialty Purpose & Class 2 Transformers are designed for printed circuit board mounting. These transformers utilize a dual cavity platform that provides superior isolation and low capacitive coupling. Their rigid pin construction ensures easier board insertion and enhanced reliability, making them suitable for a wide range of applications requiring high isolation and dependable performance.
Product Attributes
- Brand: Signal Transformer
- Series: ST / DST Series Split/Tran
- Construction: Split Bobbin with Dual Cavity Platform
- Insulation System: Class F, 155 C
- 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 (**) - see recommended fuse rating table.
- UL Recognized UL5085-3, Inherently Limited (#) File # E116583
Technical Specifications
| Model | VA Rating | Secondary RMS Rating (Series) | Secondary RMS Rating (Parallel) | Primary Voltage | Frequency | Dielectric Strength | Dimensions (L x W x H) | Weight |
|---|---|---|---|---|---|---|---|---|
| ST-2-10**# / DST-2-10**# | 1.1 | 10 VCT @ 0.11 A | 5 V @ 0.22 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 lbs (0.08 kg) |
| ST-3-10*# / DST-3-10*# | 2.4 | 10 VCT @ 0.25 A (5) | 5 V @ 0.5 A (9) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 lbs (0.11 kg) |
| ST-4-10*# / DST-4-10*# | 6 | 10 VCT @ 0.6 A (9) | 5 V @ 1.2 A (11) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 lbs (0.20 kg) |
| ST-5-10*# / DST-5-10*# | 12 | 10 VCT @ 1.2 A (11) | 5 V @ 2.4 A (13) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 lbs (0.32 kg) |
| ST-6-10 / DST-6-10 | 20 | 10 VCT @ 2.0 A | 5 V @ 4.0 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 lbs (0.36 kg) |
| ST-7-10 / DST-7-10 | 36 | 10 VCT @ 3.6 A | 5 V @ 7.2 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 lbs (0.50 kg) |
| ST-2-12**# / DST-2-12**# | 1.1 | 12.6 VCT @ 0.09 A | 6.3 V @ 0.18 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 lbs (0.08 kg) |
| ST-3-12*# / DST-3-12*# | 2.4 | 12.6 VCT @ 0.2 A (4) | 6.3 V @ 0.4 A (8) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 lbs (0.11 kg) |
| ST-4-12*# / DST-4-12*# | 6 | 12.6 VCT @ 0.5 A (9) | 6.3 V @ 1.0 A (11) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 lbs (0.20 kg) |
| ST-5-12*# / DST-5-12*# | 12 | 12.6 VCT @ 1.0 A (11) | 6.3 V @ 2.0 A (13) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 lbs (0.32 kg) |
| ST-6-12 / DST-6-12 | 20 | 12.6 VCT @ 1.6 A | 6.3 V @ 3.2 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 lbs (0.36 kg) |
| ST-7-12 / DST-7-12 | 36 | 12.6 VCT @ 2.85 A | 6.3 V @ 5.7 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 lbs (0.50 kg) |
| ST-2-16**# / DST-2-16**# | 1.1 | 16 VCT @ 0.07 A | 8 V @ 0.14 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 lbs (0.08 kg) |
| ST-3-16*# / DST-3-16*# | 2.4 | 16 VCT @ 0.15 A (3) | 8 V @ 0.3 A (6) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 lbs (0.11 kg) |
| ST-4-16*# / DST-4-16*# | 6 | 16 VCT @ 0.4 A (7) | 8 V @ 0.8 A (10) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 lbs (0.20 kg) |
| ST-5-16*# / DST-5-16*# | 12 | 16 VCT @ 0.8 A (10) | 8 V @ 1.6 A (12) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 lbs (0.32 kg) |
| ST-6-16 / DST-6-16 | 20 | 16 VCT @ 1.25 A | 8 V @ 2.5 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 lbs (0.36 kg) |
| ST-7-16 / DST-7-16 | 36 | 16 VCT @ 2.25 A | 8 V @ 4.5 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 lbs (0.50 kg) |
| ST-2-20**# / DST-2-20**# | 1.1 | 20 VCT @ 0.055 A | 10 V @ 0.11 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 lbs (0.08 kg) |
| ST-3-20*# / DST-3-20*# | 2.4 | 20 VCT @ 0.12 A (2) | 10 V @ 0.24 A (5) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 lbs (0.11 kg) |
| ST-4-20*# / DST-4-20*# | 6 | 20 VCT @ 0.3 A (6) | 10 V @ 0.6 A (9) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 lbs (0.20 kg) |
| ST-5-20*# / DST-5-20*# | 12 | 20 VCT @ 0.6 A (9) | 10 V @ 1.2 A (11) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 lbs (0.32 kg) |
| ST-6-20 / DST-6-20 | 20 | 20 VCT @ 1.0 A | 10 V @ 2.0 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 lbs (0.36 kg) |
| ST-7-20 / DST-7-20 | 36 | 20 VCT @ 1.8 A | 10 V @ 3.6 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 lbs (0.50 kg) |
| ST-2-24**# / DST-2-24**# | 1.1 | 24 VCT @ 0.045 A | 12 V @ 0.09 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 lbs (0.08 kg) |
| ST-3-24*# / DST-3-24*# | 2.4 | 24 VCT @ 0.1 A (1) | 12 V @ 0.2 A (4) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 lbs (0.11 kg) |
| ST-4-24*# / DST-4-24*# | 6 | 24 VCT @ 0.25 A (5) | 12 V @ 0.5 A (9) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 lbs (0.20 kg) |
| ST-5-24*# / DST-5-24*# | 12 | 24 VCT @ 0.5 A (9) | 12 V @ 1.0 A (11) | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 lbs (0.32 kg) |
| ST-6-24 / DST-6-24 | 20 | 24 VCT @ 0.8 A | 12 V @ 1.6 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 lbs (0.36 kg) |
| ST-7-24 / DST-7-24 | 36 | 24 VCT @ 1.5 A | 12 V @ 3.0 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 lbs (0.50 kg) |
| ST-2-28 / DST-2-28 | 1.1 | 28 VCT @ 0.04 A | 14 V @ 0.08 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 lbs (0.08 kg) |
| ST-3-28 / DST-3-28 | 2.4 | 28 VCT @ 0.085 A | 14 V @ 0.17 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 lbs (0.11 kg) |
| ST-4-28 / DST-4-28 | 6 | 28 VCT @ 0.2 A | 14 V @ 0.4 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 lbs (0.20 kg) |
| ST-5-28 / DST-5-28 | 12 | 28 VCT @ 0.42 A | 14 V @ 0.84 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 lbs (0.32 kg) |
| ST-6-28 / DST-6-28 | 20 | 28 VCT @ 0.7 A | 14 V @ 1.4 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 lbs (0.36 kg) |
| ST-7-28 / DST-7-28 | 36 | 28 VCT @ 1.3 A | 14 V @ 2.6 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 lbs (0.50 kg) |
| ST-2-36 / DST-2-36 | 1.1 | 36 VCT @ 0.03 A | 18 V @ 0.06 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 lbs (0.08 kg) |
| ST-3-36 / DST-3-36 | 2.4 | 36 VCT @ 0.065 A | 18 V @ 0.13 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 lbs (0.11 kg) |
| ST-4-36 / DST-4-36 | 6 | 36 VCT @ 0.17 A | 18 V @ 0.34 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 lbs (0.20 kg) |
| ST-5-36 / DST-5-36 | 12 | 36 VCT @ 0.35 A | 18 V @ 0.7 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 lbs (0.32 kg) |
| ST-6-36 / DST-6-36 | 20 | 36 VCT @ 0.55 A | 18 V @ 1.1 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 lbs (0.36 kg) |
| ST-7-36 / DST-7-36 | 36 | 36 VCT @ 1.0 A | 18 V @ 2.0 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 lbs (0.50 kg) |
| ST-2-48 / DST-2-48 | 1.1 | 48 VCT @ 0.023 A | 24 V @ 0.046 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 lbs (0.08 kg) |
| ST-3-48 / DST-3-48 | 2.4 | 48 VCT @ 0.05 A | 24 V @ 0.1 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 lbs (0.11 kg) |
| ST-4-48 / DST-4-48 | 6 | 48 VCT @ 0.125 A | 24 V @ 0.25 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 lbs (0.20 kg) |
| ST-5-48 / DST-5-48 | 12 | 48 VCT @ 0.25 A | 24 V @ 0.5 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 lbs (0.32 kg) |
| ST-6-48 / DST-6-48 | 20 | 48 VCT @ 0.4 A | 24 V @ 0.8 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 lbs (0.36 kg) |
| ST-7-48 / DST-7-48 | 36 | 48 VCT @ 0.75 A | 24 V @ 1.5 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 lbs (0.50 kg) |
| ST-2-56 / DST-2-56 | 1.1 | 56 VCT @ 0.02 A | 28 V @ 0.04 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 lbs (0.08 kg) |
| ST-3-56 / DST-3-56 | 2.4 | 56 VCT @ 0.045 A | 28 V @ 0.09 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 lbs (0.11 kg) |
| ST-4-56 / DST-4-56 | 6 | 56 VCT @ 0.11 A | 28 V @ 0.22 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 lbs (0.20 kg) |
| ST-5-56 / DST-5-56 | 12 | 56 VCT @ 0.22 A | 28 V @ 0.44 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 lbs (0.32 kg) |
| ST-6-56 / DST-6-56 | 20 | 56 VCT @ 0.35 A | 28 V @ 0.7 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 lbs (0.36 kg) |
| ST-7-56 / DST-7-56 | 36 | 56 VCT @ 0.65 A | 28 V @ 1.3 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 lbs (0.50 kg) |
| ST-2-120 / DST-2-120 | 1.1 | 120 VCT @ 0.01 A | 60 V @ 0.02 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 lbs (0.08 kg) |
| ST-3-120 / DST-3-120 | 2.4 | 120 VCT @ 0.02 A | 60 V @ 0.04 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 lbs (0.11 kg) |
| ST-4-120 / DST-4-120 | 6 | 120 VCT @ 0.05 A | 60 V @ 0.1 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 lbs (0.20 kg) |
| ST-5-120 / DST-5-120 | 12 | 120 VCT @ 0.1 A | 60 V @ 0.2 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 lbs (0.32 kg) |
| ST-6-120 / DST-6-120 | 20 | 120 VCT @ 0.16 A | 60 V @ 0.32 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 lbs (0.36 kg) |
| ST-7-120 / DST-7-120 | 36 | 120 VCT @ 0.3 A | 60 V @ 0.6 A | 115 V | 50/60 Hz | 2500 Vrms Hipot | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 lbs (0.50 kg) |
| 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 available from Signal, part numbers ST-MS (screw) and ST-MN (nut). Size 7 has 4 mounting 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-3-10_C17517040.pdf
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