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Specifications
Secondary Winding:
2
Isolation Voltage(Vrms):
2.5kV
Primary Winding(s):
2
Secondary Side Voltage:
24V;48V
Output Current:
500mA;250mA
Primary Side Voltage:
115V;230V
Mfr. Part #:
DST-5-48
Package:
Through Hole-8P,47.8x39.6mm
Key Attributes
Model Number:
DST-5-48
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 reliability. Suitable for a wide range of applications, they offer power ratings from 1.1 VA to 36 VA and are available in single or dual primary configurations with various secondary voltage and current options. They meet stringent agency certifications including UL and CSA recognition.
Product Attributes
- Brand: Signal
- Series: ST / DST Series Split/Tran
- Construction: Split Bobbin with Dual Cavity Platform
- Isolation: Superior isolation and low capacitive coupling
- Pin Construction: Rigid for easier board insertion and higher reliability
- 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 designation indicated by (*), (**), 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
| Model | VA Rating | Secondary RMS Rating (Series) | Secondary RMS Rating (Parallel) | Primary Voltage | Frequency (Hz) | Dielectric Strength (Vrms Hipot) | Dimensions (L x W x H) (inches) | Weight (lbs) | Mounting Hardware (Optional) |
|---|---|---|---|---|---|---|---|---|---|
| ST-2-10**# / DST-2-10**# | 1.1 | 10 VCT @ 0.11 A | 5 V @ 0.22 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | - |
| ST-3-10*# / DST-3-10*# | 2.4 | 10 VCT @ 0.25 A | 5 V @ 0.5 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | - |
| ST-4-10*# / DST-4-10*# | 6 | 10 VCT @ 0.6 A | 5 V @ 1.2 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | Nylon 4-40 x 1.37 |
| ST-5-10*# / DST-5-10*# | 12 | 10 VCT @ 1.2 A | 5 V @ 2.4 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | Nylon 4-40 x 1.37 |
| ST-6-10 / DST-6-10 | 20 | 10 VCT @ 2.0 A | 5 V @ 4.0 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | Nylon 4-40 x 1.37 |
| ST-7-10 / DST-7-10 | 36 | 10 VCT @ 3.6 A | 5 V @ 7.2 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | #6 screws (2.18 x 1.75 centers) |
| ST-2-12**# / DST-2-12**# | 1.1 | 12.6 VCT @ 0.09 A | 6.3 V @ 0.18 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | - |
| ST-3-12*# / DST-3-12*# | 2.4 | 12.6 VCT @ 0.2 A | 6.3 V @ 0.4 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | - |
| ST-4-12*# / DST-4-12*# | 6 | 12.6 VCT @ 0.5 A | 6.3 V @ 1.0 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | Nylon 4-40 x 1.37 |
| ST-5-12*# / DST-5-12*# | 12 | 12.6 VCT @ 1.0 A | 6.3 V @ 2.0 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | Nylon 4-40 x 1.37 |
| ST-6-12 / DST-6-12 | 20 | 12.6 VCT @ 1.6 A | 6.3 V @ 3.2 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | Nylon 4-40 x 1.37 |
| ST-7-12 / DST-7-12 | 36 | 12.6 VCT @ 2.85 A | 6.3 V @ 5.7 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | #6 screws (2.18 x 1.75 centers) |
| ST-2-16**# / DST-2-16**# | 1.1 | 16 VCT @ 0.07 A | 8 V @ 0.14 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | - |
| ST-3-16*# / DST-3-16*# | 2.4 | 16 VCT @ 0.15 A | 8 V @ 0.3 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | - |
| ST-4-16*# / DST-4-16*# | 6 | 16 VCT @ 0.4 A | 8 V @ 0.8 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | Nylon 4-40 x 1.37 |
| ST-5-16*# / DST-5-16*# | 12 | 16 VCT @ 0.8 A | 8 V @ 1.6 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | Nylon 4-40 x 1.37 |
| ST-6-16 / DST-6-16 | 20 | 16 VCT @ 1.25 A | 8 V @ 2.5 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | Nylon 4-40 x 1.37 |
| ST-7-16 / DST-7-16 | 36 | 16 VCT @ 2.25 A | 8 V @ 4.5 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | #6 screws (2.18 x 1.75 centers) |
| ST-2-20**# / DST-2-20**# | 1.1 | 20 VCT @ 0.055 A | 10 V @ 0.11 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | - |
| ST-3-20*# / DST-3-20*# | 2.4 | 20 VCT @ 0.12 A | 10 V @ 0.24 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | - |
| ST-4-20*# / DST-4-20*# | 6 | 20 VCT @ 0.3 A | 10 V @ 0.6 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | Nylon 4-40 x 1.37 |
| ST-5-20*# / DST-5-20*# | 12 | 20 VCT @ 0.6 A | 10 V @ 1.2 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | Nylon 4-40 x 1.37 |
| ST-6-20 / DST-6-20 | 20 | 20 VCT @ 1.0 A | 10 V @ 2.0 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | Nylon 4-40 x 1.37 |
| ST-7-20 / DST-7-20 | 36 | 20 VCT @ 1.8 A | 10 V @ 3.6 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | #6 screws (2.18 x 1.75 centers) |
| ST-2-24**# / DST-2-24**# | 1.1 | 24 VCT @ 0.045 A | 12 V @ 0.09 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | - |
| ST-3-24*# / DST-3-24*# | 2.4 | 24 VCT @ 0.1 A | 12 V @ 0.2 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | - |
| ST-4-24*# / DST-4-24*# | 6 | 24 VCT @ 0.25 A | 12 V @ 0.5 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | Nylon 4-40 x 1.37 |
| ST-5-24*# / DST-5-24*# | 12 | 24 VCT @ 0.5 A | 12 V @ 1.0 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | Nylon 4-40 x 1.37 |
| ST-6-24 / DST-6-24 | 20 | 24 VCT @ 0.8 A | 12 V @ 1.6 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | Nylon 4-40 x 1.37 |
| ST-7-24 / DST-7-24 | 36 | 24 VCT @ 1.5 A | 12 V @ 3.0 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | #6 screws (2.18 x 1.75 centers) |
| ST-2-28 / DST-2-28 | 1.1 | 28 VCT @ 0.04 A | 14 V @ 0.08 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | - |
| ST-3-28 / DST-3-28 | 2.4 | 28 VCT @ 0.085 A | 14 V @ 0.17 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | - |
| ST-4-28 / DST-4-28 | 6 | 28 VCT @ 0.2 A | 14 V @ 0.4 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | Nylon 4-40 x 1.37 |
| ST-5-28 / DST-5-28 | 12 | 28 VCT @ 0.42 A | 14 V @ 0.84 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | Nylon 4-40 x 1.37 |
| ST-6-28 / DST-6-28 | 20 | 28 VCT @ 0.7 A | 14 V @ 1.4 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | Nylon 4-40 x 1.37 |
| ST-7-28 / DST-7-28 | 36 | 28 VCT @ 1.3 A | 14 V @ 2.6 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | #6 screws (2.18 x 1.75 centers) |
| ST-2-36 / DST-2-36 | 1.1 | 36 VCT @ 0.03 A | 18 V @ 0.06 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | - |
| ST-3-36 / DST-3-36 | 2.4 | 36 VCT @ 0.065 A | 18 V @ 0.13 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | - |
| ST-4-36 / DST-4-36 | 6 | 36 VCT @ 0.17 A | 18 V @ 0.34 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | Nylon 4-40 x 1.37 |
| ST-5-36 / DST-5-36 | 12 | 36 VCT @ 0.35 A | 18 V @ 0.7 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | Nylon 4-40 x 1.37 |
| ST-6-36 / DST-6-36 | 20 | 36 VCT @ 0.55 A | 18 V @ 1.1 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | Nylon 4-40 x 1.37 |
| ST-7-36 / DST-7-36 | 36 | 36 VCT @ 1.0 A | 18 V @ 2.0 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | #6 screws (2.18 x 1.75 centers) |
| ST-2-48 / DST-2-48 | 1.1 | 48 VCT @ 0.023 A | 24 V @ 0.046 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | - |
| ST-3-48 / DST-3-48 | 2.4 | 48 VCT @ 0.05 A | 24 V @ 0.1 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | - |
| ST-4-48 / DST-4-48 | 6 | 48 VCT @ 0.125 A | 24 V @ 0.25 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | Nylon 4-40 x 1.37 |
| ST-5-48 / DST-5-48 | 12 | 48 VCT @ 0.25 A | 24 V @ 0.5 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | Nylon 4-40 x 1.37 |
| ST-6-48 / DST-6-48 | 20 | 48 VCT @ 0.4 A | 24 V @ 0.8 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | Nylon 4-40 x 1.37 |
| ST-7-48 / DST-7-48 | 36 | 48 VCT @ 0.75 A | 24 V @ 1.5 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | #6 screws (2.18 x 1.75 centers) |
| ST-2-56 / DST-2-56 | 1.1 | 56 VCT @ 0.02 A | 28 V @ 0.04 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | - |
| ST-3-56 / DST-3-56 | 2.4 | 56 VCT @ 0.045 A | 28 V @ 0.09 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | - |
| ST-4-56 / DST-4-56 | 6 | 56 VCT @ 0.11 A | 28 V @ 0.22 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | Nylon 4-40 x 1.37 |
| ST-5-56 / DST-5-56 | 12 | 56 VCT @ 0.22 A | 28 V @ 0.44 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | Nylon 4-40 x 1.37 |
| ST-6-56 / DST-6-56 | 20 | 56 VCT @ 0.35 A | 28 V @ 0.7 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | Nylon 4-40 x 1.37 |
| ST-7-56 / DST-7-56 | 36 | 56 VCT @ 0.65 A | 28 V @ 1.3 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | #6 screws (2.18 x 1.75 centers) |
| ST-2-120 / DST-2-120 | 1.1 | 120 VCT @ 0.01 A | 60 V @ 0.02 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 0.97 | 0.17 | - |
| ST-3-120 / DST-3-120 | 2.4 | 120 VCT @ 0.02 A | 60 V @ 0.04 A | 115 V | 50/60 | 2500 | 1.37 x 1.12 x 1.21 | 0.25 | - |
| ST-4-120 / DST-4-120 | 6 | 120 VCT @ 0.05 A | 60 V @ 0.1 A | 115 V | 50/60 | 2500 | 1.62 x 1.31 x 1.31 | 0.44 | Nylon 4-40 x 1.37 |
| ST-5-120 / DST-5-120 | 12 | 120 VCT @ 0.1 A | 60 V @ 0.2 A | 115 V | 50/60 | 2500 | 1.91 x 1.59 x 1.45 | 0.70 | Nylon 4-40 x 1.37 |
| ST-6-120 / DST-6-120 | 20 | 120 VCT @ 0.16 A | 60 V @ 0.32 A | 115 V | 50/60 | 2500 | 2.25 x 1.88 x 1.45 | 0.80 | Nylon 4-40 x 1.37 |
| ST-7-120 / DST-7-120 | 36 | 120 VCT @ 0.3 A | 60 V @ 0.6 A | 115 V | 50/60 | 2500 | 2.62 x 2.18 x 1.59 | 1.1 | #6 screws (2.18 x 1.75 centers) |
Note: Recommended secondary fuse values are indicated by numbers in parentheses within the Part Number Selection table and correspond to the following amperage ratings: (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.
Mounting screw and nut information is available in the Accessories datasheet. ST-MS (screw) and ST-MN (nut) are available from Signal.
2411272143_Bel-Fuse-DST-5-48_C17186089.pdf
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