Pulse Transformers IT Series with Single Secondary Winding
The IT series pulse transformers provide galvanic isolation between drive and power circuits, offering voltage resistance up to 8 kV and ignition currents up to 3 A. They are designed for transformer-coupled gate drives, ensuring negligible delays and the possibility of voltage scaling. Available with single or double secondary windings, these transformers offer rapid availability as standard gate drive transformers with a wide selection of turns ratios, ignition currents, and voltages.
Product Attributes
- Brand: Schaffner
- Certifications: UL 94 V-0 listed materials
Technical Specifications
| Model | Turns Ratio | Ignition Current (Iign) [A] | Nominal Voltage (Unom) [V] | Test Voltage (Up) [kV] | Voltage Rise (V0t) [Vs] | Rise Time (tr) [s] | Primary Inductance (Lp) [mH] | Stray Inductance (Lstr) [H] | Resistance (Rp) [] | Resistance (Rs) [] | Capacitance (Ck) [pF] | Weight [g] |
| IT 155 | 1:1 | 0.1 | 500 | 4 | 480 | 1 | 5 | 85 | 1.2 | 1.2 | 6 | 13 |
| IT 245 | 1:1 | 0.1 | 750 | 4 | 500 | 1.2 | 8 | 100 | 1.48 | 1.48 | 10 | 6 |
| IT 237 | 1:1 | 0.25 | 500 | 2.5 | 1100 | 1 | 25 | 35 | 1.9 | 2.2 | 50 | 14 |
| IT 239 | 1:1 | 0.25 | 1000 | 6 | 300 | 2.3 | 3 | 80 | 0.9 | 0.9 | 5 | 13 |
| IT 255 | 1:1 | 0.25 | 750 | 4 | 250 | 1.1 | 2.2 | 40 | 0.8 | 0.8 | 8 | 6 |
| IT 258 | 1:1 | 1 | 750 | 3.2 | 250 | 0.25 | 2.5 | 3 | 0.62 | 0.75 | 80 | 6 |
| IT 370 | 1:1 | 1 | 1000 | 5 | 4000 | 0.6 | 0.3 | 6 | 0.16 | 0.18 | 40 | 71 |
| IT 364** | 1:1 | 3 | 3000 | 8 | 5000 | 1.7 | 1.5 | 10 | 0.16 | 0.14 | 35 | 220 |
| IT 246 | 2:1 | 0.1 | 750 | 4 | 200 | 0.4 | 7 | 35 | 2.1 | 1.1 | 7 | 6 |
| IT 248 | 2:1 | 0.25 | 750 | 3.2 | 350 | 2.2 | 17 | 80 | 3.2 | 1.6 | 9 | 6 |
| IT 260 | 3:1 | 0.1 | 500 | 3.2 | 200 | 0.3 | 12 | 30 | 2 | 0.8 | 8 | 6 |
Key Technical Specifications:
Nominal operating voltage: Up to 3000 V
Operating frequency: 40 kHz max. / 500 kHz max. for data transmission
DC to 40000 Hz
Ignition currents: 0.1 to 3 A @ 40C
Rise time: 0.3 to 2.3 s
Test voltage: Up/50 Hz/2 s max. according to VDE 110b
Max. partial discharge voltage: 1.5 x Unom
Temperature range (operation and storage): -25C to +70C (25/70/21)
Features and Benefits:
Galvanic separation
Voltage resistance up to 8 kV
Allows high potential difference
Voltage scaling
Optional grounded shields
Vacuum potting
Very low partial discharge effects
PCB through hole mounting or faston types
Custom-specific versions on request
Typical Applications:
Gate drive circuit
Power supplies
Power converters
Frequency converters
Switching applications
DC/DC converters
Line coupling transformers in high-speed data transmission
2411272239_TE---Schaffner-IT155_C6968825.pdf
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