Product Overview
Signal's MT and DMT series chassis mount transformers are designed for regulated power supplies, offering dual complementary outputs for 5 VDC along with either 12 VDC or 15 VDC. These transformers provide the performance features of Signal's 241 series and are available in 30 VA, 56 VA, and 100 VA power ratings. They are suitable for applications requiring stable and reliable regulated DC power outputs.
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
- Customization: Custom versions available upon request.
Technical Specifications
| Model | Power (VA) | Primary Voltage (Nominal) | Primary Range | Frequency (Hz) | Secondary Outputs | Dielectric Strength (Vrms Hipot) | Insulation Class | Terminals | Weight (lbs / kg) | Dimensions (L x W x H) (inches / mm) |
|---|---|---|---|---|---|---|---|---|---|---|
| MT/DMT-6 | 30 | 115 V or 115/230 V | 100 V to 130 V or 200 V to 260 V | 50/60 | 5 VDC with 12 VDC or 5 VDC with 15 VDC | 2500 | Class B (130 C) | Solder lug / quick connect | 1.1 (0.50) | 3.25 (82.6) x 1.74 (44.3) x 1.96 (49.8) |
| MT/DMT-7 | 56 | 115 V or 115/230 V | 100 V to 130 V or 200 V to 260 V | 50/60 | 5 VDC with 12 VDC or 5 VDC with 15 VDC | 2500 | Class B (130 C) | Solder lug / quick connect | 1.7 (0.77) | 3.68 (93.5) x 1.94 (49.2) x 2.28 (57.8) |
| MT/DMT-8 | 100 | 115 V or 115/230 V | 100 V to 130 V or 200 V to 260 V | 50/60 | 5 VDC with 12 VDC or 5 VDC with 15 VDC | 2500 | Class B (130 C) | Solder lug / quick connect | 2.75 (1.25) | 4.03 (102.4) x 2.30 (58.5) x 2.58 (65.5) |
| Part Number | Primary Voltage (115 V) | Primary Voltage (115/230 V) | Size | DC Output (Regulator I) | DC Output (Regulator II) |
|---|---|---|---|---|---|
| MT-6-12 | Yes | N/A | 6 | 5 V @ 1.75 A | 12 V @ 210 mA |
| DMT-6-12 | N/A | Yes | 6 | 5 V @ 1.75 A | 12 V @ 210 mA |
| MT-6-15 | Yes | N/A | 6 | 5 V @ 1.75 A | 15 V @ 175 mA |
| DMT-6-15 | N/A | Yes | 6 | 5 V @ 1.75 A | 15 V @ 175 mA |
| MT-7-12 | Yes | N/A | 7 | 5 V @ 2.8 A | 12 V @ 350 mA |
| DMT-7-12 | N/A | Yes | 7 | 5 V @ 2.8 A | 12 V @ 350 mA |
| MT-7-15 | Yes | N/A | 7 | 5 V @ 2.8 A | 15 V @ 280 mA |
| DMT-7-15 | N/A | Yes | 7 | 5 V @ 2.8 A | 15 V @ 280 mA |
| MT-8-12 | Yes | N/A | 8 | 5 V @ 4 A | 12 V @ 600 mA |
| DMT-8-12 | N/A | Yes | 8 | 5 V @ 4 A | 12 V @ 600 mA |
| MT-8-15 | Yes | N/A | 8 | 5 V @ 4 A | 15 V @ 500 mA |
| DMT-8-15 | N/A | Yes | 8 | 5 V @ 4 A | 15 V @ 500 mA |
| Part Number | Size | Suggested Component C1 (KMFD @ VDC) | Suggested Component C3 (KMFD @ VDC) | Suggested Component IC13 | Suggested Component IC23 | Suggested Component IC33 | Suggested Component D14 | Suggested Component D24 |
|---|---|---|---|---|---|---|---|---|
| MT-6-12 / DMT-6-12 | 6 | 10 @ 20 | 1.5 @ 50 | LM-323K-5 | LM-340K-12 | LM-320K-12 | 3N253 | 3N247 |
| MT-6-15 / DMT-6-15 | 6 | 10 @ 20 | 1.5 @ 50 | LM-323K-5 | LM-340K-15 | LM-320K-15 | 3N253 | 3N247 |
| MT-7-12 / DMT-7-12 | 7 | 15 @ 20 | 2 @ 50 | LM-323K-5 | LM-340K-12 | LM-320K-12 | MDA-400 | 3N247 |
| MT-7-15 / DMT-7-15 | 7 | 15 @ 20 | 2 @ 50 | LM-323K-5 | LM-340K-15 | LM-320K-15 | MDA-400 | 3N247 |
| MT-8-12 / DMT-8-12 | 8 | 26 @ 20 | 3.1 @ 50 | LM-338 2 | LM-340K-12 | LM-320K-12 | MDA-800 | 3N247 |
| MT-8-15 / DMT-8-15 | 8 | 26 @ 20 | 3.1 @ 50 | LM-338 2 | LM-340K-15 | LM-320K-15 | MDA-800 | 3N247 |
Note 1: Output capacitors C2 and C4 are required to stabilize regulators. Values can be 1 MFD min. tantalum or 10 MFD min. electrolytic, 20 V min.
Note 2: LM-338 is an adjustable regulator and Mfrs specifications (National Semiconductor) should be consulted for values of external components.
Note 3: All ICs are National Semiconductor types.
Note 4: All diodes are Motorola types.
2411272200_Bel-Fuse-MT-8-12_C17568354.pdf
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