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 facilitates easier board insertion and enhances 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 insulation system (155 C).
Product Attributes
- Brand: Signal Transformer (belfuse.com/signal)
- Series: ST / DST Series Split/Tran
- Type: Specialty Purpose & Class 2 Transformers, Split Bobbin
- Construction: Dual cavity platform, Split bobbin
- Pin Construction: Rigid
- 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), UL Recognized UL5085-3 Inherently Limited (File # E116583)
- Class 2 Marking: Marked with (*) or (**) or (#)
- CSA Certification Notes: * CSA certified as Inherently Limited, ** CSA certified as Non Inherently Limited (see recommended fuse rating table)
Technical Specifications
| VA Rating | Model Type | Primary Voltage | Secondary RMS Rating (Series) | Secondary RMS Rating (Parallel) | Pin Configuration | Dimensions (L x W x H) | Weight (lbs/kg) |
|---|---|---|---|---|---|---|---|
| 1.1 | ST-2 | 115 V | 10 VCT @ 0.11 A | 5 V @ 0.22 A | 6 Pin | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) |
| 1.1 | DST-2 | 115/230 V | 10 VCT @ 0.11 A | 5 V @ 0.22 A | 8 Pin | 1.37 (34.9) x 1.12 (28.6) x 0.97 (24.6) | 0.17 (0.08) |
| 2.4 | ST-3 | 115 V | 10 VCT @ 0.25 A | 5 V @ 0.5 A | 6 Pin | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) |
| 2.4 | DST-3 | 115/230 V | 10 VCT @ 0.25 A | 5 V @ 0.5 A | 8 Pin | 1.37 (34.9) x 1.12 (28.6) x 1.21 (30.8) | 0.25 (0.11) |
| 6 | ST-4 | 115 V | 10 VCT @ 0.6 A | 5 V @ 1.2 A | 6 Pin | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) |
| 6 | DST-4 | 115/230 V | 10 VCT @ 0.6 A | 5 V @ 1.2 A | 8 Pin | 1.62 (41.3) x 1.31 (33.3) x 1.31 (33.3) | 0.44 (0.20) |
| 12 | ST-5 | 115 V | 10 VCT @ 1.2 A | 5 V @ 2.4 A | 6 Pin | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) |
| 12 | DST-5 | 115/230 V | 10 VCT @ 1.2 A | 5 V @ 2.4 A | 8 Pin | 1.91 (48.4) x 1.59 (40.4) x 1.45 (36.9) | 0.70 (0.32) |
| 20 | ST-6 | 115 V | 10 VCT @ 2.0 A | 5 V @ 4.0 A | 6 Pin | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) |
| 20 | DST-6 | 115/230 V | 10 VCT @ 2.0 A | 5 V @ 4.0 A | 8 Pin | 2.25 (57.2) x 1.88 (47.8) x 1.45 (36.9) | 0.80 (0.36) |
| 36 | ST-7 | 115 V | 10 VCT @ 3.6 A | 5 V @ 7.2 A | 6 Pin | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 1.1 (0.50) |
| 36 | DST-7 | 115/230 V | 10 VCT @ 3.6 A | 5 V @ 7.2 A | 8 Pin | 2.62 (66.7) x 2.18 (55.5) x 1.59 (40.4) | 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 - Mounting Hardware: See chart (ST-MS screw, ST-MN nut available from Signal) - Size 7 mounting holes: 4 holes on 2.18 x 1.75 centers for #6 screws. | |||||||
Note: Specific secondary voltage and current ratings vary by part number. Please refer to the detailed part number selection chart for exact specifications.
2411272143_Bel-Fuse-DST-6-20_C17651905.pdf
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