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Specifications
Secondary Winding:
2
Isolation Voltage(Vrms):
2.5kV
Primary Winding(s):
1
Secondary Side Voltage:
6.3V;12.6V
Output Current:
400mA;200mA
Primary Side Voltage:
115V
Mfr. Part #:
ST-3-12
Package:
Through Hole-6P,34.9x28.6mm
Key Attributes
Model Number:
ST-3-12
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. The rigid pin construction facilitates easier board insertion and enhances reliability. They are suitable for a wide range of power applications from 1.1 VA to 36 VA, offering both single and dual primary configurations with various secondary voltage and current ratings.
Product Attributes
- Brand: Signal Transformer
- Series: ST / DST Series Split/Tran
- Construction: Split Bobbin with Dual Cavity Platform
- Insulation System: Class F, 155 C
- Certifications: UL 1446, UL Recognized 506 / UL 5085-1, 2, CSA certified to C22.2 #66.1, cCSAus certified to C22.2 #66.3 / UL 5085-3
- Compliance: RoHS Compliant
- Customization: Custom versions available upon request.
Technical Specifications
| Model | VA Rating | Primary Voltage | Secondary RMS Rating (Series) | Secondary RMS Rating (Parallel) | Pin Configuration | Dimensions (L x W x H) | Weight (lbs/kg) |
|---|---|---|---|---|---|---|---|
| ST-2-10**# / DST-2-10**# | 1.1 | 115 V / 115/230 V | 10 VCT @ 0.11 A | 5 V @ 0.22 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 (0.08) |
| ST-3-10*# / DST-3-10*# | 2.4 | 115 V / 115/230 V | 10 VCT @ 0.25 A | 5 V @ 0.5 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 (0.11) |
| ST-4-10*# / DST-4-10*# | 6 | 115 V / 115/230 V | 10 VCT @ 0.6 A | 5 V @ 1.2 A | 6 Pin / 8 Pin | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 (0.20) |
| ST-5-10*# / DST-5-10*# | 12 | 115 V / 115/230 V | 10 VCT @ 1.2 A | 5 V @ 2.4 A | 6 Pin / 8 Pin | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 (0.32) |
| ST-6-10 / DST-6-10 | 20 | 115 V / 115/230 V | 10 VCT @ 2.0 A | 5 V @ 4.0 A | 6 Pin / 8 Pin | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 (0.36) |
| ST-7-10 / DST-7-10 | 36 | 115 V / 115/230 V | 10 VCT @ 3.6 A | 5 V @ 7.2 A | 6 Pin / 8 Pin | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 (0.50) |
| ST-2-12**# / DST-2-12**# | 1.1 | 115 V / 115/230 V | 12.6 VCT @ 0.09 A | 6.3 V @ 0.18 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 (0.08) |
| ST-3-12*# / DST-3-12*# | 2.4 | 115 V / 115/230 V | 12.6 VCT @ 0.2 A | 6.3 V @ 0.4 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 (0.11) |
| ST-4-12*# / DST-4-12*# | 6 | 115 V / 115/230 V | 12.6 VCT @ 0.5 A | 6.3 V @ 1.0 A | 6 Pin / 8 Pin | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 (0.20) |
| ST-5-12*# / DST-5-12*# | 12 | 115 V / 115/230 V | 12.6 VCT @ 1.0 A | 6.3 V @ 2.0 A | 6 Pin / 8 Pin | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 (0.32) |
| ST-6-12 / DST-6-12 | 20 | 115 V / 115/230 V | 12.6 VCT @ 1.6 A | 6.3 V @ 3.2 A | 6 Pin / 8 Pin | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 (0.36) |
| ST-7-12 / DST-7-12 | 36 | 115 V / 115/230 V | 12.6 VCT @ 2.85 A | 6.3 V @ 5.7 A | 6 Pin / 8 Pin | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 (0.50) |
| ST-2-16**# / DST-2-16**# | 1.1 | 115 V / 115/230 V | 16 VCT @ 0.07 A | 8 V @ 0.14 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 (0.08) |
| ST-3-16*# / DST-3-16*# | 2.4 | 115 V / 115/230 V | 16 VCT @ 0.15 A | 8 V @ 0.3 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 (0.11) |
| ST-4-16*# / DST-4-16*# | 6 | 115 V / 115/230 V | 16 VCT @ 0.4 A | 8 V @ 0.8 A | 6 Pin / 8 Pin | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 (0.20) |
| ST-5-16*# / DST-5-16*# | 12 | 115 V / 115/230 V | 16 VCT @ 0.8 A | 8 V @ 1.6 A | 6 Pin / 8 Pin | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 (0.32) |
| ST-6-16 / DST-6-16 | 20 | 115 V / 115/230 V | 16 VCT @ 1.25 A | 8 V @ 2.5 A | 6 Pin / 8 Pin | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 (0.36) |
| ST-7-16 / DST-7-16 | 36 | 115 V / 115/230 V | 16 VCT @ 2.25 A | 8 V @ 4.5 A | 6 Pin / 8 Pin | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 (0.50) |
| ST-2-20**# / DST-2-20**# | 1.1 | 115 V / 115/230 V | 20 VCT @ 0.055 A | 10 V @ 0.11 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 (0.08) |
| ST-3-20*# / DST-3-20*# | 2.4 | 115 V / 115/230 V | 20 VCT @ 0.12 A | 10 V @ 0.24 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 (0.11) |
| ST-4-20*# / DST-4-20*# | 6 | 115 V / 115/230 V | 20 VCT @ 0.3 A | 10 V @ 0.6 A | 6 Pin / 8 Pin | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 (0.20) |
| ST-5-20*# / DST-5-20*# | 12 | 115 V / 115/230 V | 20 VCT @ 0.6 A | 10 V @ 1.2 A | 6 Pin / 8 Pin | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 (0.32) |
| ST-6-20 / DST-6-20 | 20 | 115 V / 115/230 V | 20 VCT @ 1.0 A | 10 V @ 2.0 A | 6 Pin / 8 Pin | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 (0.36) |
| ST-7-20 / DST-7-20 | 36 | 115 V / 115/230 V | 20 VCT @ 1.8 A | 10 V @ 3.6 A | 6 Pin / 8 Pin | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 (0.50) |
| ST-2-24**# / DST-2-24**# | 1.1 | 115 V / 115/230 V | 24 VCT @ 0.045 A | 12 V @ 0.09 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 (0.08) |
| ST-3-24*# / DST-3-24*# | 2.4 | 115 V / 115/230 V | 24 VCT @ 0.1 A | 12 V @ 0.2 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 (0.11) |
| ST-4-24*# / DST-4-24*# | 6 | 115 V / 115/230 V | 24 VCT @ 0.25 A | 12 V @ 0.5 A | 6 Pin / 8 Pin | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 (0.20) |
| ST-5-24*# / DST-5-24*# | 12 | 115 V / 115/230 V | 24 VCT @ 0.5 A | 12 V @ 1.0 A | 6 Pin / 8 Pin | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 (0.32) |
| ST-6-24 / DST-6-24 | 20 | 115 V / 115/230 V | 24 VCT @ 0.8 A | 12 V @ 1.6 A | 6 Pin / 8 Pin | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 (0.36) |
| ST-7-24 / DST-7-24 | 36 | 115 V / 115/230 V | 24 VCT @ 1.5 A | 12 V @ 3.0 A | 6 Pin / 8 Pin | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 (0.50) |
| ST-2-28 / DST-2-28 | 1.1 | 115 V / 115/230 V | 28 VCT @ 0.04 A | 14 V @ 0.08 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 (0.08) |
| ST-3-28 / DST-3-28 | 2.4 | 115 V / 115/230 V | 28 VCT @ 0.085 A | 14 V @ 0.17 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 (0.11) |
| ST-4-28 / DST-4-28 | 6 | 115 V / 115/230 V | 28 VCT @ 0.2 A | 14 V @ 0.4 A | 6 Pin / 8 Pin | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 (0.20) |
| ST-5-28 / DST-5-28 | 12 | 115 V / 115/230 V | 28 VCT @ 0.42 A | 14 V @ 0.84 A | 6 Pin / 8 Pin | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 (0.32) |
| ST-6-28 / DST-6-28 | 20 | 115 V / 115/230 V | 28 VCT @ 0.7 A | 14 V @ 1.4 A | 6 Pin / 8 Pin | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 (0.36) |
| ST-7-28 / DST-7-28 | 36 | 115 V / 115/230 V | 28 VCT @ 1.3 A | 14 V @ 2.6 A | 6 Pin / 8 Pin | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 (0.50) |
| ST-2-36 / DST-2-36 | 1.1 | 115 V / 115/230 V | 36 VCT @ 0.03 A | 18 V @ 0.06 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 (0.08) |
| ST-3-36 / DST-3-36 | 2.4 | 115 V / 115/230 V | 36 VCT @ 0.065 A | 18 V @ 0.13 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 (0.11) |
| ST-4-36 / DST-4-36 | 6 | 115 V / 115/230 V | 36 VCT @ 0.17 A | 18 V @ 0.34 A | 6 Pin / 8 Pin | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 (0.20) |
| ST-5-36 / DST-5-36 | 12 | 115 V / 115/230 V | 36 VCT @ 0.35 A | 18 V @ 0.7 A | 6 Pin / 8 Pin | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 (0.32) |
| ST-6-36 / DST-6-36 | 20 | 115 V / 115/230 V | 36 VCT @ 0.55 A | 18 V @ 1.1 A | 6 Pin / 8 Pin | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 (0.36) |
| ST-7-36 / DST-7-36 | 36 | 115 V / 115/230 V | 36 VCT @ 1.0 A | 18 V @ 2.0 A | 6 Pin / 8 Pin | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 (0.50) |
| ST-2-48 / DST-2-48 | 1.1 | 115 V / 115/230 V | 48 VCT @ 0.023 A | 24 V @ 0.046 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 (0.08) |
| ST-3-48 / DST-3-48 | 2.4 | 115 V / 115/230 V | 48 VCT @ 0.05 A | 24 V @ 0.1 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 (0.11) |
| ST-4-48 / DST-4-48 | 6 | 115 V / 115/230 V | 48 VCT @ 0.125 A | 24 V @ 0.25 A | 6 Pin / 8 Pin | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 (0.20) |
| ST-5-48 / DST-5-48 | 12 | 115 V / 115/230 V | 48 VCT @ 0.25 A | 24 V @ 0.5 A | 6 Pin / 8 Pin | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 (0.32) |
| ST-6-48 / DST-6-48 | 20 | 115 V / 115/230 V | 48 VCT @ 0.4 A | 24 V @ 0.8 A | 6 Pin / 8 Pin | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 (0.36) |
| ST-7-48 / DST-7-48 | 36 | 115 V / 115/230 V | 48 VCT @ 0.75 A | 24 V @ 1.5 A | 6 Pin / 8 Pin | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 (0.50) |
| ST-2-56 / DST-2-56 | 1.1 | 115 V / 115/230 V | 56 VCT @ 0.02 A | 28 V @ 0.04 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 (0.08) |
| ST-3-56 / DST-3-56 | 2.4 | 115 V / 115/230 V | 56 VCT @ 0.045 A | 28 V @ 0.09 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 (0.11) |
| ST-4-56 / DST-4-56 | 6 | 115 V / 115/230 V | 56 VCT @ 0.11 A | 28 V @ 0.22 A | 6 Pin / 8 Pin | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 (0.20) |
| ST-5-56 / DST-5-56 | 12 | 115 V / 115/230 V | 56 VCT @ 0.22 A | 28 V @ 0.44 A | 6 Pin / 8 Pin | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 (0.32) |
| ST-6-56 / DST-6-56 | 20 | 115 V / 115/230 V | 56 VCT @ 0.35 A | 28 V @ 0.7 A | 6 Pin / 8 Pin | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 (0.36) |
| ST-7-56 / DST-7-56 | 36 | 115 V / 115/230 V | 56 VCT @ 0.65 A | 28 V @ 1.3 A | 6 Pin / 8 Pin | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 1.1 (0.50) |
| ST-2-120 / DST-2-120 | 1.1 | 115 V / 115/230 V | 120 VCT @ 0.01 A | 60 V @ 0.02 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 0.97" (24.6mm) | 0.17 (0.08) |
| ST-3-120 / DST-3-120 | 2.4 | 115 V / 115/230 V | 120 VCT @ 0.02 A | 60 V @ 0.04 A | 6 Pin / 8 Pin | 1.37" (34.9mm) x 1.12" (28.6mm) x 1.21" (30.8mm) | 0.25 (0.11) |
| ST-4-120 / DST-4-120 | 6 | 115 V / 115/230 V | 120 VCT @ 0.05 A | 60 V @ 0.1 A | 6 Pin / 8 Pin | 1.62" (41.3mm) x 1.31" (33.3mm) x 1.31" (33.3mm) | 0.44 (0.20) |
| ST-5-120 / DST-5-120 | 12 | 115 V / 115/230 V | 120 VCT @ 0.1 A | 60 V @ 0.2 A | 6 Pin / 8 Pin | 1.91" (48.4mm) x 1.59" (40.4mm) x 1.45" (36.9mm) | 0.70 (0.32) |
| ST-6-120 / DST-6-120 | 20 | 115 V / 115/230 V | 120 VCT @ 0.16 A | 60 V @ 0.32 A | 6 Pin / 8 Pin | 2.25" (57.2mm) x 1.88" (47.8mm) x 1.45" (36.9mm) | 0.80 (0.36) |
| ST-7-120 / DST-7-120 | 36 | 115 V / 115/230 V | 120 VCT @ 0.3 A | 60 V @ 0.6 A | 6 Pin / 8 Pin | 2.62" (66.7mm) x 2.18" (55.5mm) x 1.59" (40.4mm) | 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. Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. Optional Mounting Screw & Nut available from Signal (part numbers ST-MS and ST-MN). | |||||||
| 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-ST-3-12_C17269488.pdf
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