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Specifications
Secondary Winding:
2
Isolation Voltage(Vrms):
2.5kV
Primary Winding(s):
1
Secondary Side Voltage:
8V;16V
Output Current:
800mA;400mA
Primary Side Voltage:
115V
Mfr. Part #:
ST-4-16
Package:
Through Hole-6P,41.3x33.3mm
Key Attributes
Model Number:
ST-4-16
Product Description
Product Overview
The Signal ST and DST Series Split/Tran Specialty Purpose & Class 2 Transformers are designed for printed circuit board mounting. Utilizing a dual cavity platform, these transformers offer superior isolation and low capacitive coupling. Their rigid pin construction ensures easier board insertion and enhanced reliability. These transformers are suitable for a wide range of power applications, from 1.1 VA to 36 VA, and are built with a Class F (155C) insulation system.
Product Attributes
- Brand: Signal Transformer (belfuse.com/signal)
- Series: ST / DST Series Split/Tran
- Construction: Split Bobbin with Dual Cavity Platform
- Insulation System: Class F, 155C
- Certifications: UL 1446, UL Recognized 506 / UL 5085-1, 2, CSA Certified C22.2 #66.1, cCSAus Certified C22.2 #66.3 / UL 5085-3, UL Recognized UL5085-3 (Inherently Limited)
- Compliance: RoHS Compliant
- Customization: Custom versions available upon request.
Technical Specifications
| Model | Power (VA) | 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) |
|---|---|---|---|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| Primary Options: Single or dual primaries, 115 V or 115/230 V, 50/60 Hz | ||||||||
| Mounting Hardware: See chart for dimensions and optional mounting screw & nut (ST-MS, ST-MN). 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-ST-4-16_C17216596.pdf
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