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 feature dual complementary outputs and are suitable for various industrial and electronic applications requiring stable, multi-voltage DC outputs.
Product Attributes
- Brand: Signal
- Series: MT / DMT
- Type: Chassis Mount Triple Output Transformers
- Technology: Two-4-One
- Insulation Class: Class B (130 C)
- RoHS Compliant: Yes
- Agency Certifications: UL 1446 (File # E66312), UL recognized to UL 506 / UL5085-2 (File # E63829), CSA certified to C22.2 #66.1 (File # 221070)
- Custom versions: Available upon request
Technical Specifications
| Model | Power (VA) | Primary Voltage (Nominal) | Frequency (Hz) | Input Range | Secondary Outputs | Dielectric Strength (Vrms Hipot) | Terminals | Dimensions (L x W x H) (Inches/mm) | Weight (lbs/kg) |
|---|---|---|---|---|---|---|---|---|---|
| MT-6 / DMT-6 | 30 | 115 V or 115/230 V | 50/60 | 100 V to 130 V or 200 V to 260 V | 5 VDC @ 1.75 A + 12 VDC @ 210 mA (MT-6-12/DMT-6-12) 5 VDC @ 1.75 A + 15 VDC @ 175 mA (MT-6-15/DMT-6-15) | 2500 | Solder lug / quick connect | 6: 3.25 (82.6) x 1.74 (44.3) x 1.96 (49.8) | 1.1 (0.50) |
| MT-7 / DMT-7 | 56 | 115 V or 115/230 V | 50/60 | 100 V to 130 V or 200 V to 260 V | 5 VDC @ 2.8 A + 12 VDC @ 350 mA (MT-7-12/DMT-7-12) 5 VDC @ 2.8 A + 15 VDC @ 280 mA (MT-7-15/DMT-7-15) | 2500 | Solder lug / quick connect | 7: 3.68 (93.5) x 1.94 (49.2) x 2.28 (57.8) | 1.7 (0.77) |
| MT-8 / DMT-8 | 100 | 115 V or 115/230 V | 50/60 | 100 V to 130 V or 200 V to 260 V | 5 VDC @ 4 A + 12 VDC @ 600 mA (MT-8-12/DMT-8-12) 5 VDC @ 4 A + 15 VDC @ 500 mA (MT-8-15/DMT-8-15) | 2500 | Solder lug / quick connect | 8: 4.03 (102.4) x 2.30 (58.5) x 2.58 (65.5) | 2.75 (1.25) |
Suggested Components (for Regulator Circuits)
| Primary Voltage | Size | Capacitor C1 (Input) | Capacitor C3 (Input) | Regulator IC13 (5V) | Regulator IC23 (Positive) | Regulator IC33 (Negative) | Diode D14 | Diode D24 |
|---|---|---|---|---|---|---|---|---|
| 115 V | 6 | 10 F @ 20 VDC | 1.5 F @ 50 VDC | LM-323K-5 | LM-340K-12 | LM-320K-12 | 3N253 | 3N247 |
| 115 V | 6 | 10 F @ 20 VDC | 1.5 F @ 50 VDC | LM-323K-5 | LM-340K-15 | LM-320K-15 | 3N253 | 3N247 |
| 115 V | 7 | 15 F @ 20 VDC | 2 F @ 50 VDC | LM-323K-5 | LM-340K-12 | LM-320K-12 | MDA-400 | 3N247 |
| 115 V | 7 | 15 F @ 20 VDC | 2 F @ 50 VDC | LM-323K-5 | LM-340K-15 | LM-320K-15 | MDA-400 | 3N247 |
| 115 V | 8 | 26 F @ 20 VDC | 3.1 F @ 50 VDC | LM-338 (2) | LM-340K-12 | LM-320K-12 | MDA-800 | 3N247 |
| 115 V | 8 | 26 F @ 20 VDC | 3.1 F @ 50 VDC | 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 F min. tantalum or 10 F min. electrolytic, 20 V min.
Note 2: LM-338 is an adjustable regulator. Manufacturer's specifications (National Semiconductor) should be consulted for values of external components.
Note 3: All IC's are National Semiconductor types.
Note 4: All diodes are Motorola types.
2411272200_Bel-Fuse-DMT-6-15_C17668430.pdf
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