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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:
180mA;90mA
Primary Side Voltage:
115V;230V
Mfr. Part #:
DST-2-12
Package:
Through Hole-8P,34.9x28.6mm
Key Attributes
Model Number:
DST-2-12
Product Description
Product Overview
The Belfuse ST/DST Series Split/Tran Specialty Purpose & Class 2 Transformers are designed for signal applications, utilizing a split bobbin construction with dual cavities to provide superior isolation and low capacitive coupling. These transformers feature rigid pin construction for enhanced board insertion reliability. They are suitable for a wide range of power requirements from 1.1 VA to 36 VA and offer single or dual primary configurations with various secondary voltage and current ratings. The series is UL and CSA certified, with Class 2 options available.
Product Attributes
- Brand: Belfuse (Signal Transformer)
- Series: ST / DST Series Split/Tran
- Construction: Split Bobbin with Dual Cavity
- 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 | VA Rating | Size (L x W x H) | Weight (lbs/kg) | Mounting Type | Mounting Screw & Nut (Optional) |
|---|---|---|---|---|---|---|
| ST-2-10**# / DST-2-10**# | 10 VCT @ 0.11 A / 5 V @ 0.22 A | 1.1 | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-3-10*# / DST-3-10*# | 10 VCT @ 0.25 A / 5 V @ 0.5 A | 2.4 | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-4-10*# / DST-4-10*# | 10 VCT @ 0.6 A / 5 V @ 1.2 A | 6 | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-5-10*# / DST-5-10*# | 10 VCT @ 1.2 A / 5 V @ 2.4 A | 12 | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-6-10 / DST-6-10 | 10 VCT @ 2.0 A / 5 V @ 4.0 A | 20 | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-7-10 / DST-7-10 | 10 VCT @ 3.6 A / 5 V @ 7.2 A | 36 | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) | 6 Pin (ST) / 8 Pin (DST) | Available ST-MS (screw) and ST-MN (nut). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. |
| ST-2-12**# / DST-2-12**# | 12.6 VCT @ 0.09 A / 6.3 V @ 0.18 A | 1.1 | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-3-12*# / DST-3-12*# | 12.6 VCT @ 0.2 A / 6.3 V @ 0.4 A | 2.4 | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-4-12*# / DST-4-12*# | 12.6 VCT @ 0.5 A / 6.3 V @ 1.0 A | 6 | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-5-12*# / DST-5-12*# | 12.6 VCT @ 1.0 A / 6.3 V @ 2.0 A | 12 | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-6-12 / DST-6-12 | 12.6 VCT @ 1.6 A / 6.3 V @ 3.2 A | 20 | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-7-12 / DST-7-12 | 12.6 VCT @ 2.85 A / 6.3 V @ 5.7 A | 36 | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) | 6 Pin (ST) / 8 Pin (DST) | Available ST-MS (screw) and ST-MN (nut). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. |
| ST-2-16**# / DST-2-16**# | 16 VCT @ 0.07 A / 8 V @ 0.14 A | 1.1 | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-3-16*# / DST-3-16*# | 16 VCT @ 0.15 A / 8 V @ 0.3 A | 2.4 | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-4-16*# / DST-4-16*# | 16 VCT @ 0.4 A / 8 V @ 0.8 A | 6 | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-5-16*# / DST-5-16*# | 16 VCT @ 0.8 A / 8 V @ 1.6 A | 12 | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-6-16 / DST-6-16 | 16 VCT @ 1.25 A / 8 V @ 2.5 A | 20 | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-7-16 / DST-7-16 | 16 VCT @ 2.25 A / 8 V @ 4.5 A | 36 | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) | 6 Pin (ST) / 8 Pin (DST) | Available ST-MS (screw) and ST-MN (nut). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. |
| ST-2-20**# / DST-2-20**# | 20 VCT @ 0.055 A / 10 V @ 0.11 A | 1.1 | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-3-20*# / DST-3-20*# | 20 VCT @ 0.12 A / 10 V @ 0.24 A | 2.4 | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-4-20*# / DST-4-20*# | 20 VCT @ 0.3 A / 10 V @ 0.6 A | 6 | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-5-20*# / DST-5-20*# | 20 VCT @ 0.6 A / 10 V @ 1.2 A | 12 | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-6-20 / DST-6-20 | 20 VCT @ 1.0 A / 10 V @ 2.0 A | 20 | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-7-20 / DST-7-20 | 20 VCT @ 1.8 A / 10 V @ 3.6 A | 36 | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) | 6 Pin (ST) / 8 Pin (DST) | Available ST-MS (screw) and ST-MN (nut). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. |
| ST-2-24**# / DST-2-24**# | 24 VCT @ 0.045 A / 12 V @ 0.09 A | 1.1 | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-3-24*# / DST-3-24*# | 24 VCT @ 0.1 A / 12 V @ 0.2 A | 2.4 | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-4-24*# / DST-4-24*# | 24 VCT @ 0.25 A / 12 V @ 0.5 A | 6 | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-5-24*# / DST-5-24*# | 24 VCT @ 0.5 A / 12 V @ 1.0 A | 12 | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-6-24 / DST-6-24 | 24 VCT @ 0.8 A / 12 V @ 1.6 A | 20 | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-7-24 / DST-7-24 | 24 VCT @ 1.5 A / 12 V @ 3.0 A | 36 | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) | 6 Pin (ST) / 8 Pin (DST) | Available ST-MS (screw) and ST-MN (nut). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. |
| ST-2-28 / DST-2-28 | 28 VCT @ 0.04 A / 14 V @ 0.08 A | 1.1 | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-3-28 / DST-3-28 | 28 VCT @ 0.085 A / 14 V @ 0.17 A | 2.4 | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-4-28 / DST-4-28 | 28 VCT @ 0.2 A / 14 V @ 0.4 A | 6 | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-5-28 / DST-5-28 | 28 VCT @ 0.42 A / 14 V @ 0.84 A | 12 | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-6-28 / DST-6-28 | 28 VCT @ 0.7 A / 14 V @ 1.4 A | 20 | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-7-28 / DST-7-28 | 28 VCT @ 1.3 A / 14 V @ 2.6 A | 36 | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) | 6 Pin (ST) / 8 Pin (DST) | Available ST-MS (screw) and ST-MN (nut). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. |
| ST-2-36 / DST-2-36 | 36 VCT @ 0.03 A / 18 V @ 0.06 A | 1.1 | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-3-36 / DST-3-36 | 36 VCT @ 0.065 A / 18 V @ 0.13 A | 2.4 | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-4-36 / DST-4-36 | 36 VCT @ 0.17 A / 18 V @ 0.34 A | 6 | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-5-36 / DST-5-36 | 36 VCT @ 0.35 A / 18 V @ 0.7 A | 12 | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-6-36 / DST-6-36 | 36 VCT @ 0.55 A / 18 V @ 1.1 A | 20 | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-7-36 / DST-7-36 | 36 VCT @ 1.0 A / 18 V @ 2.0 A | 36 | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) | 6 Pin (ST) / 8 Pin (DST) | Available ST-MS (screw) and ST-MN (nut). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. |
| ST-2-48 / DST-2-48 | 48 VCT @ 0.023 A / 24 V @ 0.046 A | 1.1 | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-3-48 / DST-3-48 | 48 VCT @ 0.05 A / 24 V @ 0.1 A | 2.4 | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-4-48 / DST-4-48 | 48 VCT @ 0.125 A / 24 V @ 0.25 A | 6 | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-5-48 / DST-5-48 | 48 VCT @ 0.25 A / 24 V @ 0.5 A | 12 | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-6-48 / DST-6-48 | 48 VCT @ 0.4 A / 24 V @ 0.8 A | 20 | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-7-48 / DST-7-48 | 48 VCT @ 0.75 A / 24 V @ 1.5 A | 36 | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) | 6 Pin (ST) / 8 Pin (DST) | Available ST-MS (screw) and ST-MN (nut). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. |
| ST-2-56 / DST-2-56 | 56 VCT @ 0.02 A / 28 V @ 0.04 A | 1.1 | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-3-56 / DST-3-56 | 56 VCT @ 0.045 A / 28 V @ 0.09 A | 2.4 | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-4-56 / DST-4-56 | 56 VCT @ 0.11 A / 28 V @ 0.22 A | 6 | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-5-56 / DST-5-56 | 56 VCT @ 0.22 A / 28 V @ 0.44 A | 12 | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-6-56 / DST-6-56 | 56 VCT @ 0.35 A / 28 V @ 0.7 A | 20 | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-7-56 / DST-7-56 | 56 VCT @ 0.65 A / 28 V @ 1.3 A | 36 | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) | 6 Pin (ST) / 8 Pin (DST) | Available ST-MS (screw) and ST-MN (nut). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. |
| ST-2-120 / DST-2-120 | 120 VCT @ 0.01 A / 60 V @ 0.02 A | 1.1 | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-3-120 / DST-3-120 | 120 VCT @ 0.02 A / 60 V @ 0.04 A | 2.4 | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) | 6 Pin (ST) / 8 Pin (DST) | - |
| ST-4-120 / DST-4-120 | 120 VCT @ 0.05 A / 60 V @ 0.1 A | 6 | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-5-120 / DST-5-120 | 120 VCT @ 0.1 A / 60 V @ 0.2 A | 12 | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-6-120 / DST-6-120 | 120 VCT @ 0.16 A / 60 V @ 0.32 A | 20 | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) | 6 Pin (ST) / 8 Pin (DST) | Nylon 4-40 x 1.37 (34.9) |
| ST-7-120 / DST-7-120 | 120 VCT @ 0.3 A / 60 V @ 0.6 A | 36 | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) | 6 Pin (ST) / 8 Pin (DST) | Available ST-MS (screw) and ST-MN (nut). Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. |
| 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 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-2-12_C17411804.pdf
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