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Specifications
Secondary Winding:
2
Isolation Voltage(Vrms):
2.5kV
Primary Winding(s):
1
Secondary Side Voltage:
18V;36V
Output Current:
340mA;170mA
Primary Side Voltage:
115V
Mfr. Part #:
ST-4-36
Package:
Through Hole-6P,41.3x33.3mm
Key Attributes
Model Number:
ST-4-36
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 feature a split bobbin construction with dual cavities, offering superior isolation and low capacitive coupling. They are engineered with rigid pin construction for enhanced board insertion reliability. Suitable for a wide range of power applications from 1.1 VA to 36 VA, these transformers meet stringent agency certifications including UL and CSA standards, ensuring safety and performance in various industrial and electronic systems.
Product Attributes
- Brand: 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 (**) - see recommended fuse rating table.
- UL Recognized UL5085-3, Inherently Limited (#) File # E116583
- Custom Versions: Available upon request
Technical Specifications
| Part Number | Secondary RMS Rating | Power (VA) | Primary Type | Secondary Pins | Weight (lbs/kg) |
|---|---|---|---|---|---|
| ST-2-10**# | 10 VCT @ 0.11 A / 5 V @ 0.22 A | - | Single 115 V | 6 Pin | - |
| DST-2-10**# | 10 VCT @ 0.11 A / 5 V @ 0.22 A | - | Dual 115/230 V | 8 Pin | - |
| ST-3-10*# | 10 VCT @ 0.25 A (5) / 5 V @ 0.5 A (9) | - | Single 115 V | 6 Pin | - |
| DST-3-10*# | 10 VCT @ 0.25 A (5) / 5 V @ 0.5 A (9) | - | Dual 115/230 V | 8 Pin | - |
| ST-4-10*# | 10 VCT @ 0.6 A (9) / 5 V @ 1.2 A (11) | - | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-10*# | 10 VCT @ 0.6 A (9) / 5 V @ 1.2 A (11) | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-10*# | 10 VCT @ 1.2 A (11) / 5 V @ 2.4 A (13) | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-10*# | 10 VCT @ 1.2 A (11) / 5 V @ 2.4 A (13) | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-10 | 10 VCT @ 2.0 A / 5 V @ 4.0 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-10 | 10 VCT @ 2.0 A / 5 V @ 4.0 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-10 | 10 VCT @ 3.6 A / 5 V @ 7.2 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-10 | 10 VCT @ 3.6 A / 5 V @ 7.2 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-12**# | 12.6 VCT @ 0.09 A / 6.3 V @ 0.18 A | - | Single 115 V | 6 Pin | - |
| DST-2-12**# | 12.6 VCT @ 0.09 A / 6.3 V @ 0.18 A | - | Dual 115/230 V | 8 Pin | - |
| ST-3-12*# | 12.6 VCT @ 0.2 A (4) / 6.3 V @ 0.4 A (8) | - | Single 115 V | 6 Pin | - |
| DST-3-12*# | 12.6 VCT @ 0.2 A (4) / 6.3 V @ 0.4 A (8) | - | Dual 115/230 V | 8 Pin | - |
| ST-4-12*# | 12.6 VCT @ 0.5 A (9) / 6.3 V @ 1.0 A (11) | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-12*# | 12.6 VCT @ 0.5 A (9) / 6.3 V @ 1.0 A (11) | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-12*# | 12.6 VCT @ 1.0 A (11) / 6.3 V @ 2.0 A (13) | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-12*# | 12.6 VCT @ 1.0 A (11) / 6.3 V @ 2.0 A (13) | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-12 | 12.6 VCT @ 1.6 A / 6.3 V @ 3.2 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-12 | 12.6 VCT @ 1.6 A / 6.3 V @ 3.2 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-12 | 12.6 VCT @ 2.85 A / 6.3 V @ 5.7 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-12 | 12.6 VCT @ 2.85 A / 6.3 V @ 5.7 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-16**# | 16 VCT @ 0.07 A / 8 V @ 0.14 A | - | Single 115 V | 6 Pin | - |
| DST-2-16**# | 16 VCT @ 0.07 A / 8 V @ 0.14 A | - | Dual 115/230 V | 8 Pin | - |
| ST-3-16*# | 16 VCT @ 0.15 A (3) / 8 V @ 0.3 A (6) | - | Single 115 V | 6 Pin | - |
| DST-3-16*# | 16 VCT @ 0.15 A (3) / 8 V @ 0.3 A (6) | - | Dual 115/230 V | 8 Pin | - |
| ST-4-16*# | 16 VCT @ 0.4 A (7) / 8 V @ 0.8 A (10) | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-16*# | 16 VCT @ 0.4 A (7) / 8 V @ 0.8 A (10) | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-16*# | 16 VCT @ 0.8 A (10) / 8 V @ 1.6 A (12) | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-16*# | 16 VCT @ 0.8 A (10) / 8 V @ 1.6 A (12) | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-16 | 16 VCT @ 1.25 A / 8 V @ 2.5 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-16 | 16 VCT @ 1.25 A / 8 V @ 2.5 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-16 | 16 VCT @ 2.25 A / 8 V @ 4.5 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-16 | 16 VCT @ 2.25 A / 8 V @ 4.5 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-20**# | 20 VCT @ 0.055 A / 10 V @ 0.11 A | - | Single 115 V | 6 Pin | - |
| DST-2-20**# | 20 VCT @ 0.055 A / 10 V @ 0.11 A | - | Dual 115/230 V | 8 Pin | - |
| ST-3-20*# | 20 VCT @ 0.12 A (2) / 10 V @ 0.24 A (5) | - | Single 115 V | 6 Pin | - |
| DST-3-20*# | 20 VCT @ 0.12 A (2) / 10 V @ 0.24 A (5) | - | Dual 115/230 V | 8 Pin | - |
| ST-4-20*# | 20 VCT @ 0.3 A (6) / 10 V @ 0.6 A (9) | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-20*# | 20 VCT @ 0.3 A (6) / 10 V @ 0.6 A (9) | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-20*# | 20 VCT @ 0.6 A (9) / 10 V @ 1.2 A (11) | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-20*# | 20 VCT @ 0.6 A (9) / 10 V @ 1.2 A (11) | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-20 | 20 VCT @ 1.0 A / 10 V @ 2.0 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-20 | 20 VCT @ 1.0 A / 10 V @ 2.0 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-20 | 20 VCT @ 1.8 A / 10 V @ 3.6 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-20 | 20 VCT @ 1.8 A / 10 V @ 3.6 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-24**# | 24 VCT @ 0.045 A / 12 V @ 0.09 A | - | Single 115 V | 6 Pin | - |
| DST-2-24**# | 24 VCT @ 0.045 A / 12 V @ 0.09 A | - | Dual 115/230 V | 8 Pin | - |
| ST-3-24*# | 24 VCT @ 0.1 A (1) / 12 V @ 0.2 A (4) | - | Single 115 V | 6 Pin | - |
| DST-3-24*# | 24 VCT @ 0.1 A (1) / 12 V @ 0.2 A (4) | - | Dual 115/230 V | 8 Pin | - |
| ST-4-24*# | 24 VCT @ 0.25 A (5) / 12 V @ 0.5 A (9) | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-24*# | 24 VCT @ 0.25 A (5) / 12 V @ 0.5 A (9) | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-24*# | 24 VCT @ 0.5 A (9) / 12 V @ 1.0 A (11) | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-24*# | 24 VCT @ 0.5 A (9) / 12 V @ 1.0 A (11) | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-24 | 24 VCT @ 0.8 A / 12 V @ 1.6 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-24 | 24 VCT @ 0.8 A / 12 V @ 1.6 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-24 | 24 VCT @ 1.5 A / 12 V @ 3.0 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-24 | 24 VCT @ 1.5 A / 12 V @ 3.0 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-28 | 28 VCT @ 0.04 A / 14 V @ 0.08 A | - | Single 115 V | 6 Pin | - |
| DST-2-28 | 28 VCT @ 0.04 A / 14 V @ 0.08 A | - | Dual 115/230 V | 8 Pin | - |
| ST-3-28 | 28 VCT @ 0.085 A / 14 V @ 0.17 A | - | Single 115 V | 6 Pin | - |
| DST-3-28 | 28 VCT @ 0.085 A / 14 V @ 0.17 A | - | Dual 115/230 V | 8 Pin | - |
| ST-4-28 | 28 VCT @ 0.2 A / 14 V @ 0.4 A | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-28 | 28 VCT @ 0.2 A / 14 V @ 0.4 A | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-28 | 28 VCT @ 0.42 A / 14 V @ 0.84 A | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-28 | 28 VCT @ 0.42 A / 14 V @ 0.84 A | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-28 | 28 VCT @ 0.7 A / 14 V @ 1.4 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-28 | 28 VCT @ 0.7 A / 14 V @ 1.4 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-28 | 28 VCT @ 1.3 A / 14 V @ 2.6 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-28 | 28 VCT @ 1.3 A / 14 V @ 2.6 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-36 | 36 VCT @ 0.03 A / 18 V @ 0.06 A | - | Single 115 V | 6 Pin | - |
| DST-2-36 | 36 VCT @ 0.03 A / 18 V @ 0.06 A | - | Dual 115/230 V | 8 Pin | - |
| ST-3-36 | 36 VCT @ 0.065 A / 18 V @ 0.13 A | - | Single 115 V | 6 Pin | - |
| DST-3-36 | 36 VCT @ 0.065 A / 18 V @ 0.13 A | - | Dual 115/230 V | 8 Pin | - |
| ST-4-36 | 36 VCT @ 0.17 A / 18 V @ 0.34 A | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-36 | 36 VCT @ 0.17 A / 18 V @ 0.34 A | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-36 | 36 VCT @ 0.35 A / 18 V @ 0.7 A | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-36 | 36 VCT @ 0.35 A / 18 V @ 0.7 A | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-36 | 36 VCT @ 0.55 A / 18 V @ 1.1 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-36 | 36 VCT @ 0.55 A / 18 V @ 1.1 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-36 | 36 VCT @ 1.0 A / 18 V @ 2.0 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-36 | 36 VCT @ 1.0 A / 18 V @ 2.0 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-48 | 48 VCT @ 0.023 A / 24 V @ 0.046 A | - | Single 115 V | 6 Pin | - |
| DST-2-48 | 48 VCT @ 0.023 A / 24 V @ 0.046 A | - | Dual 115/230 V | 8 Pin | - |
| ST-3-48 | 48 VCT @ 0.05 A / 24 V @ 0.1 A | - | Single 115 V | 6 Pin | - |
| DST-3-48 | 48 VCT @ 0.05 A / 24 V @ 0.1 A | - | Dual 115/230 V | 8 Pin | - |
| ST-4-48 | 48 VCT @ 0.125 A / 24 V @ 0.25 A | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-48 | 48 VCT @ 0.125 A / 24 V @ 0.25 A | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-48 | 48 VCT @ 0.25 A / 24 V @ 0.5 A | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-48 | 48 VCT @ 0.25 A / 24 V @ 0.5 A | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-48 | 48 VCT @ 0.4 A / 24 V @ 0.8 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-48 | 48 VCT @ 0.4 A / 24 V @ 0.8 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-48 | 48 VCT @ 0.75 A / 24 V @ 1.5 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-48 | 48 VCT @ 0.75 A / 24 V @ 1.5 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-56 | 56 VCT @ 0.02 A / 28 V @ 0.04 A | - | Single 115 V | 6 Pin | - |
| DST-2-56 | 56 VCT @ 0.02 A / 28 V @ 0.04 A | - | Dual 115/230 V | 8 Pin | - |
| ST-3-56 | 56 VCT @ 0.045 A / 28 V @ 0.09 A | - | Single 115 V | 6 Pin | - |
| DST-3-56 | 56 VCT @ 0.045 A / 28 V @ 0.09 A | - | Dual 115/230 V | 8 Pin | - |
| ST-4-56 | 56 VCT @ 0.11 A / 28 V @ 0.22 A | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-56 | 56 VCT @ 0.11 A / 28 V @ 0.22 A | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-56 | 56 VCT @ 0.22 A / 28 V @ 0.44 A | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-56 | 56 VCT @ 0.22 A / 28 V @ 0.44 A | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-56 | 56 VCT @ 0.35 A / 28 V @ 0.7 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-56 | 56 VCT @ 0.35 A / 28 V @ 0.7 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-56 | 56 VCT @ 0.65A / 28 V @ 1.3 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-56 | 56 VCT @ 0.65A / 28 V @ 1.3 A | 36 | Dual 115/230 V | 8 Pin | 1.1 (0.50) |
| ST-2-120 | 120 VCT @ 0.01 A / 60 V @ 0.02 A | - | Single 115 V | 6 Pin | - |
| DST-2-120 | 120 VCT @ 0.01 A / 60 V @ 0.02 A | - | Dual 115/230 V | 8 Pin | - |
| ST-3-120 | 120 VCT @ 0.02 A / 60 V @ 0.04 A | - | Single 115 V | 6 Pin | - |
| DST-3-120 | 120 VCT @ 0.02 A / 60 V @ 0.04 A | - | Dual 115/230 V | 8 Pin | - |
| ST-4-120 | 120 VCT @ 0.05 A / 60 V @ 0.1 A | 6 | Single 115 V | 6 Pin | 0.44 (0.20) |
| DST-4-120 | 120 VCT @ 0.05 A / 60 V @ 0.1 A | 6 | Dual 115/230 V | 8 Pin | 0.44 (0.20) |
| ST-5-120 | 120 VCT @ 0.1 A / 60 V @ 0.2 A | 12 | Single 115 V | 6 Pin | 0.70 (0.32) |
| DST-5-120 | 120 VCT @ 0.1 A / 60 V @ 0.2 A | 12 | Dual 115/230 V | 8 Pin | 0.70 (0.32) |
| ST-6-120 | 120 VCT @ 0.16 A / 60 V @ 0.32 A | 20 | Single 115 V | 6 Pin | 0.80 (0.36) |
| DST-6-120 | 120 VCT @ 0.16 A / 60 V @ 0.32 A | 20 | Dual 115/230 V | 8 Pin | 0.80 (0.36) |
| ST-7-120 | 120 VCT @ 0.3 A / 60 V @ 0.6 A | 36 | Single 115 V | 6 Pin | 1.1 (0.50) |
| DST-7-120 | 120 VCT @ 0.3 A / 60 V @ 0.6 A | 36 | Dual 115/230 V | 8 Pin | 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 (ST-MS screw, ST-MN nut available from Signal) | ||||
| Size 7 Mounting | 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 | ||||
| Mechanical Specifications (Size, L, W, H, ML, A, B, C, Weight) | See detailed chart in original document. | ||||
Note: Specifications subject to change without notice.
2411272143_Bel-Fuse-ST-4-36_C17307989.pdf
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