Product Overview
Signal's MT and DMT Series Chassis Mount Triple Output Transformers are designed to provide regulated power supplies for 5 VDC and 12 VDC or 15 VDC applications. These transformers offer all the performance features of the 241 series and are available in power ratings of 30 VA, 56 VA, and 100 VA. They are RoHS compliant and carry multiple agency certifications, including UL and CSA.
Product Attributes
- Brand: Signal
- Series: MT / DMT
- Type: Chassis Mount Triple Output Transformers
- Technology: Two-4-One
- Insulation Class: Class B (130 C)
- Certifications: UL 1446 (File # E66312), UL recognized to UL 506 / UL5085-2 (File # E63829), CSA certified to C22.2 #66.1 (File # 221070)
- Compliance: RoHS compliant
- Origin: USA (implied by address)
Technical Specifications
| Specification | Details |
|---|---|
| Power Ratings | 30 VA, 56 VA, 100 VA |
| Dielectric Strength | 2500 Vrms Hipot |
| Primary Voltage | Single or dual primaries: 115 V or 115/230 V nominal, 50/60 Hz |
| Input Range | 100 V to 130 V or 200 V to 260 V |
| Secondary Outputs | Dual complementary outputs: 5 VDC with 12 VDC or 5 VDC with 15 VDC |
| Terminals | Solder lug / quick connect type |
| Insulation | Class B (130 C) UL E66312 |
MT / DMT Series - Model Selection
| Part Number | Primary (50/60 Hz) | DC Output | Size (typ) | Weight (lbs/kg) |
|---|---|---|---|---|
| MT-6-12 | 115 V | 5 V @ 1.75 A, 12 V @ 210 mA | 6 | 1.1 (0.50) |
| DMT-6-12 | 115/230 V | 5 V @ 1.75 A, 12 V @ 210 mA | 6 | 1.1 (0.50) |
| MT-6-15 | 115 V | 5 V @ 1.75 A, 15 V @ 175 mA | 6 | 1.1 (0.50) |
| DMT-6-15 | 115/230 V | 5 V @ 1.75 A, 15 V @ 175 mA | 6 | 1.1 (0.50) |
| MT-7-12 | 115 V | 5 V @ 2.8 A, 12 V @ 350 mA | 7 | 1.7 (0.77) |
| DMT-7-12 | 115/230 V | 5 V @ 2.8 A, 12 V @ 350 mA | 7 | 1.7 (0.77) |
| MT-7-15 | 115 V | 5 V @ 2.8 A, 15 V @ 280 mA | 7 | 1.7 (0.77) |
| DMT-7-15 | 115/230 V | 5 V @ 2.8 A, 15 V @ 280 mA | 7 | 1.7 (0.77) |
| MT-8-12 | 115 V | 5 V @ 4 A, 12 V @ 600 mA | 8 | 2.75 (1.25) |
| DMT-8-12 | 115/230 V | 5 V @ 4 A, 12 V @ 600 mA | 8 | 2.75 (1.25) |
| MT-8-15 | 115 V | 5 V @ 4 A, 15 V @ 500 mA | 8 | 2.75 (1.25) |
| DMT-8-15 | 115/230 V | 5 V @ 4 A, 15 V @ 500 mA | 8 | 2.75 (1.25) |
MT / DMT Series - Mechanical Specifications
| Size | Dimensions (L x W x H) Inches (mm) | Weight (lbs/kg) |
|---|---|---|
| 6 | 3.25 (82.6) x 1.74 (44.3) x 1.96 (49.8) | 1.1 (0.50) |
| 7 | 3.68 (93.5) x 1.94 (49.2) x 2.28 (57.8) | 1.7 (0.77) |
| 8 | 4.03 (102.4) x 2.30 (58.5) x 2.58 (65.5) | 2.75 (1.25) |
Suggested Components for MT/DMT Series
| Part Number | Primary (50/60 Hz) | Size | Suggested Components (C2 & C4 See Note 1) | Suggested Components (C1, C3, IC13, IC23, IC33, D14, D24) |
|---|---|---|---|---|
| MT-6-12 / DMT-6-12 | 115 V / 115/230 V | 6 | 10 F @ 20 VDC / 1.5 F @ 50 VDC | LM-323K-5, LM-340K-12, LM-320K-12, 3N253, 3N247 |
| MT-6-15 / DMT-6-15 | 115 V / 115/230 V | 6 | 10 F @ 20 VDC / 1.5 F @ 50 VDC | LM-323K-5, LM-340K-15, LM-320K-15, 3N253, 3N247 |
| MT-7-12 / DMT-7-12 | 115 V / 115/230 V | 7 | 15 F @ 20 VDC / 2 F @ 50 VDC | LM-323K-5, LM-340K-12, LM-320K-12, MDA-400, 3N247 |
| MT-7-15 / DMT-7-15 | 115 V / 115/230 V | 7 | 15 F @ 20 VDC / 2 F @ 50 VDC | LM-323K-5, LM-340K-15, LM-320K-15, MDA-400, 3N247 |
| MT-8-12 / DMT-8-12 | 115 V / 115/230 V | 8 | 26 F @ 20 VDC / 3.1 F @ 50 VDC | LM-338 2, LM-340K-12, LM-320K-12, MDA-800, 3N247 |
| MT-8-15 / DMT-8-15 | 115 V / 115/230 V | 8 | 26 F @ 20 VDC / 3.1 F @ 50 VDC | LM-338 2, LM-340K-15, LM-320K-15, MDA-800, 3N247 |
Notes:
1. Output capacitors C2 and C4 are required to stabilize regulators. Values can be 1 F min. tantalum or 10 F min. electrolytic, 20 V min.
2. LM-338 is an adjustable regulator. Consult manufacturer's specifications for values of external components.
3. All ICs are National Semiconductor types.
4. All diodes are Motorola types.
2411272200_Bel-Fuse-MT-6-15_C17423969.pdf
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