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Specifications
Secondary Winding:
2
Isolation Voltage(Vrms):
2.5kV
Primary Winding(s):
2
Secondary Side Voltage:
18V;36V
Output Current:
2A;1A
Primary Side Voltage:
115V;230V
Mfr. Part #:
DST-7-36
Package:
Through Hole-8P,66.7x55.5mm
Key Attributes
Model Number:
DST-7-36
Product Description
Bel Fuse Signal ST / DST Series Split Bobbin Transformers
Product Overview
The Bel Fuse Signal ST and DST Series Split Bobbin Transformers are specialty purpose and Class 2 transformers designed for printed circuit board mounting. Utilizing a dual cavity platform, these transformers offer superior isolation and low capacitive coupling, making them ideal for applications requiring high reliability and electrical separation. Their rigid pin construction ensures easier board insertion and enhanced durability. 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: Bel Fuse Signal
- Series: ST / DST Series Split/Tran
- Construction: Split Bobbin with Dual Cavity Platform
- Pin Construction: Rigid
- Insulation System: Class F, 155 C
- Agency Certifications: UL 1446, UL Recognized 506 / UL 5085-1, 2, CSA certified to C22.2 #66.1, cCSAus certified to C22.2 #66.3 / UL 5085-3, UL Recognized UL5085-3 (Inherently Limited)
- Compliance: RoHS Compliant
- Customization: Custom versions available upon request.
Technical Specifications
| Part Number | Secondary RMS Rating (Series) | Secondary RMS Rating (Parallel) | Power (VA) | Dielectric Strength (Vrms Hipot) | Primary Options | Frequency (Hz) | Insulation System | Mounting Type | Dimensions (L x W x H) (inches) | Weight (lbs) |
|---|---|---|---|---|---|---|---|---|---|---|
| ST-2-10**# / DST-2-10**# | 10 VCT @ 0.11 A | 5 V @ 0.22 A | 1.1 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 0.97 | 0.17 |
| ST-3-10*# / DST-3-10*# | 10 VCT @ 0.25 A | 5 V @ 0.5 A | 2.4 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 1.21 | 0.25 |
| ST-4-10*# / DST-4-10*# | 10 VCT @ 0.6 A | 5 V @ 1.2 A | 6 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.62 x 1.31 x 1.31 | 0.44 |
| ST-5-10*# / DST-5-10*# | 10 VCT @ 1.2 A | 5 V @ 2.4 A | 12 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.91 x 1.59 x 1.45 | 0.70 |
| ST-6-10 / DST-6-10 | 10 VCT @ 2.0 A | 5 V @ 4.0 A | 20 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.25 x 1.88 x 1.45 | 0.80 |
| ST-7-10 / DST-7-10 | 10 VCT @ 3.6 A | 5 V @ 7.2 A | 36 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.62 x 2.18 x 1.59 | 1.1 |
| ST-2-12**# / DST-2-12**# | 12.6 VCT @ 0.09 A | 6.3 V @ 0.18 A | 1.1 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 0.97 | 0.17 |
| ST-3-12*# / DST-3-12*# | 12.6 VCT @ 0.2 A | 6.3 V @ 0.4 A | 2.4 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 1.21 | 0.25 |
| ST-4-12*# / DST-4-12*# | 12.6 VCT @ 0.5 A | 6.3 V @ 1.0 A | 6 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.62 x 1.31 x 1.31 | 0.44 |
| ST-5-12*# / DST-5-12*# | 12.6 VCT @ 1.0 A | 6.3 V @ 2.0 A | 12 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.91 x 1.59 x 1.45 | 0.70 |
| ST-6-12 / DST-6-12 | 12.6 VCT @ 1.6 A | 6.3 V @ 3.2 A | 20 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.25 x 1.88 x 1.45 | 0.80 |
| ST-7-12 / DST-7-12 | 12.6 VCT @ 2.85 A | 6.3 V @ 5.7 A | 36 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.62 x 2.18 x 1.59 | 1.1 |
| ST-2-16**# / DST-2-16**# | 16 VCT @ 0.07 A | 8 V @ 0.14 A | 1.1 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 0.97 | 0.17 |
| ST-3-16*# / DST-3-16*# | 16 VCT @ 0.15 A | 8 V @ 0.3 A | 2.4 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 1.21 | 0.25 |
| ST-4-16*# / DST-4-16*# | 16 VCT @ 0.4 A | 8 V @ 0.8 A | 6 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.62 x 1.31 x 1.31 | 0.44 |
| ST-5-16*# / DST-5-16*# | 16 VCT @ 0.8 A | 8 V @ 1.6 A | 12 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.91 x 1.59 x 1.45 | 0.70 |
| ST-6-16 / DST-6-16 | 16 VCT @ 1.25 A | 8 V @ 2.5 A | 20 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.25 x 1.88 x 1.45 | 0.80 |
| ST-7-16 / DST-7-16 | 16 VCT @ 2.25 A | 8 V @ 4.5 A | 36 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.62 x 2.18 x 1.59 | 1.1 |
| ST-2-20**# / DST-2-20**# | 20 VCT @ 0.055 A | 10 V @ 0.11 A | 1.1 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 0.97 | 0.17 |
| ST-3-20*# / DST-3-20*# | 20 VCT @ 0.12 A | 10 V @ 0.24 A | 2.4 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 1.21 | 0.25 |
| ST-4-20*# / DST-4-20*# | 20 VCT @ 0.3 A | 10 V @ 0.6 A | 6 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.62 x 1.31 x 1.31 | 0.44 |
| ST-5-20*# / DST-5-20*# | 20 VCT @ 0.6 A | 10 V @ 1.2 A | 12 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.91 x 1.59 x 1.45 | 0.70 |
| ST-6-20 / DST-6-20 | 20 VCT @ 1.0 A | 10 V @ 2.0 A | 20 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.25 x 1.88 x 1.45 | 0.80 |
| ST-7-20 / DST-7-20 | 20 VCT @ 1.8 A | 10 V @ 3.6 A | 36 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.62 x 2.18 x 1.59 | 1.1 |
| ST-2-24**# / DST-2-24**# | 24 VCT @ 0.045 A | 12 V @ 0.09 A | 1.1 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 0.97 | 0.17 |
| ST-3-24*# / DST-3-24*# | 24 VCT @ 0.1 A | 12 V @ 0.2 A | 2.4 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 1.21 | 0.25 |
| ST-4-24*# / DST-4-24*# | 24 VCT @ 0.25 A | 12 V @ 0.5 A | 6 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.62 x 1.31 x 1.31 | 0.44 |
| ST-5-24*# / DST-5-24*# | 24 VCT @ 0.5 A | 12 V @ 1.0 A | 12 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.91 x 1.59 x 1.45 | 0.70 |
| ST-6-24 / DST-6-24 | 24 VCT @ 0.8 A | 12 V @ 1.6 A | 20 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.25 x 1.88 x 1.45 | 0.80 |
| ST-7-24 / DST-7-24 | 24 VCT @ 1.5 A | 12 V @ 3.0 A | 36 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.62 x 2.18 x 1.59 | 1.1 |
| ST-2-28 / DST-2-28 | 28 VCT @ 0.04 A | 14 V @ 0.08 A | 1.1 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 0.97 | 0.17 |
| ST-3-28 / DST-3-28 | 28 VCT @ 0.085 A | 14 V @ 0.17 A | 2.4 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 1.21 | 0.25 |
| ST-4-28 / DST-4-28 | 28 VCT @ 0.2 A | 14 V @ 0.4 A | 6 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.62 x 1.31 x 1.31 | 0.44 |
| ST-5-28 / DST-5-28 | 28 VCT @ 0.42 A | 14 V @ 0.84 A | 12 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.91 x 1.59 x 1.45 | 0.70 |
| ST-6-28 / DST-6-28 | 28 VCT @ 0.7 A | 14 V @ 1.4 A | 20 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.25 x 1.88 x 1.45 | 0.80 |
| ST-7-28 / DST-7-28 | 28 VCT @ 1.3 A | 14 V @ 2.6 A | 36 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.62 x 2.18 x 1.59 | 1.1 |
| ST-2-36 / DST-2-36 | 36 VCT @ 0.03 A | 18 V @ 0.06 A | 1.1 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 0.97 | 0.17 |
| ST-3-36 / DST-3-36 | 36 VCT @ 0.065 A | 18 V @ 0.13 A | 2.4 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 1.21 | 0.25 |
| ST-4-36 / DST-4-36 | 36 VCT @ 0.17 A | 18 V @ 0.34 A | 6 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.62 x 1.31 x 1.31 | 0.44 |
| ST-5-36 / DST-5-36 | 36 VCT @ 0.35 A | 18 V @ 0.7 A | 12 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.91 x 1.59 x 1.45 | 0.70 |
| ST-6-36 / DST-6-36 | 36 VCT @ 0.55 A | 18 V @ 1.1 A | 20 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.25 x 1.88 x 1.45 | 0.80 |
| ST-7-36 / DST-7-36 | 36 VCT @ 1.0 A | 18 V @ 2.0 A | 36 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.62 x 2.18 x 1.59 | 1.1 |
| ST-2-48 / DST-2-48 | 48 VCT @ 0.023 A | 24 V @ 0.046 A | 1.1 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 0.97 | 0.17 |
| ST-3-48 / DST-3-48 | 48 VCT @ 0.05 A | 24 V @ 0.1 A | 2.4 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 1.21 | 0.25 |
| ST-4-48 / DST-4-48 | 48 VCT @ 0.125 A | 24 V @ 0.25 A | 6 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.62 x 1.31 x 1.31 | 0.44 |
| ST-5-48 / DST-5-48 | 48 VCT @ 0.25 A | 24 V @ 0.5 A | 12 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.91 x 1.59 x 1.45 | 0.70 |
| ST-6-48 / DST-6-48 | 48 VCT @ 0.4 A | 24 V @ 0.8 A | 20 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.25 x 1.88 x 1.45 | 0.80 |
| ST-7-48 / DST-7-48 | 48 VCT @ 0.75 A | 24 V @ 1.5 A | 36 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.62 x 2.18 x 1.59 | 1.1 |
| ST-2-56 / DST-2-56 | 56 VCT @ 0.02 A | 28 V @ 0.04 A | 1.1 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 0.97 | 0.17 |
| ST-3-56 / DST-3-56 | 56 VCT @ 0.045 A | 28 V @ 0.09 A | 2.4 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 1.21 | 0.25 |
| ST-4-56 / DST-4-56 | 56 VCT @ 0.11 A | 28 V @ 0.22 A | 6 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.62 x 1.31 x 1.31 | 0.44 |
| ST-5-56 / DST-5-56 | 56 VCT @ 0.22 A | 28 V @ 0.44 A | 12 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.91 x 1.59 x 1.45 | 0.70 |
| ST-6-56 / DST-6-56 | 56 VCT @ 0.35 A | 28 V @ 0.7 A | 20 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.25 x 1.88 x 1.45 | 0.80 |
| ST-7-56 / DST-7-56 | 56 VCT @ 0.65 A | 28 V @ 1.3 A | 36 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.62 x 2.18 x 1.59 | 1.1 |
| ST-2-120 / DST-2-120 | 120 VCT @ 0.01 A | 60 V @ 0.02 A | 1.1 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 0.97 | 0.17 |
| ST-3-120 / DST-3-120 | 120 VCT @ 0.02 A | 60 V @ 0.04 A | 2.4 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.37 x 1.12 x 1.21 | 0.25 |
| ST-4-120 / DST-4-120 | 120 VCT @ 0.05 A | 60 V @ 0.1 A | 6 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.62 x 1.31 x 1.31 | 0.44 |
| ST-5-120 / DST-5-120 | 120 VCT @ 0.1 A | 60 V @ 0.2 A | 12 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 1.91 x 1.59 x 1.45 | 0.70 |
| ST-6-120 / DST-6-120 | 120 VCT @ 0.16 A | 60 V @ 0.32 A | 20 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.25 x 1.88 x 1.45 | 0.80 |
| ST-7-120 / DST-7-120 | 120 VCT @ 0.3 A | 60 V @ 0.6 A | 36 | 2500 | Single 115 V (ST) / Dual 115/230 V (DST) | 50/60 | Class F (155 C) | Printed Circuit Mount | 2.62 x 2.18 x 1.59 | 1.1 |
Note: Recommended secondary fuse values are indicated by numerical superscripts in the Part Number Selection table. Mounting hardware (screws and nuts) is available separately.
2411272143_Bel-Fuse-DST-7-36_C7604063.pdf
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