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Specifications
Turns Ratio:
1:1
Operating Temperature:
-25℃~+70℃
Mfr. Part #:
IT239
Package:
Through Hole,27x22.5mm
Key Attributes
Model Number:
IT239
Product Description
Product Overview
The IT series pulse transformers offer galvanic isolation between drive and power circuits, featuring voltage resistance up to 8 kV and ignition currents up to 3 A. They are designed for transformer-coupled gate drives, providing negligible delays and voltage scaling capabilities. Available with single or double secondary windings, these transformers ensure rapid availability of standard gate drive solutions 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 Operating Voltage (Unom) [V] | Test Voltage (Up) [kV] | Voltage Rise (V0t) [Vs] | Rise time (tr) [s] | Primary Inductance (Lp) [mH] | Stray Inductance (Lstr) [H] | Primary Resistance (Rp) [] | Secondary 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 |
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
Mechanical Data (Dimensions in mm)
| Model | A (0.2) | B (0.2) | C (0.2) | D (+1/-0) | E () | F | G (0.2) | H (0.2) | I (0.2) | L (0.2) | M (0.2) | N () |
| IT 245, IT 246, IT 248, IT 255, IT 258, IT 260 | 17.6* | 16.7* | 11.3* | 5 | 0.42 | 0.4 | 15.3 | 12.5 | 3.5 | 2 | 25 | 4.2 |
| IT 239 | 17.6* | 16.7* | 11.3* | 5 | 0.42 | 0.4 | 15.3 | 12.5 | 3.5 | 2 | 25 | 4.2 |
| IT 155, IT 237 | 17.6* | 16.7* | 11.3* | 5 | 0.42 | 0.4 | 15.3 | 12.5 | 3.5 | 2 | 25 | 4.2 |
| IT 364** | 17.6* | 16.7* | 11.3* | 5 | 0.42 | 0.4 | 15.3 | 7.5 | 3.5 | 2 | 25 | 4.2 |
| IT 370 | 17.6* | 16.7* | 11.3* | 5 | 0.42 | 0.4 | 15.3 | 12.5 | 3.5 | 2 | 25 | 4.2 |
| IT 245, IT 246, IT 248, IT 255, IT 258, IT 260 | 17.6* | 16.7* | 11.3* | 5 | 0.42 | 0.4 | 15.3 | 12.5 | 3.5 | 2 | 25 | 4.2 |
| IT 239 | 27 | 22.5 | 13.7 | 5 | 0.45 | 0.7 | 20 | 15 | 3.5 | 2.5 | 25 | 4.2 |
| IT 155, IT 237 | 27 | 22.5 | 13.7 | 5 | 0.45 | 0.7 | 20 | 7.5 | 3.5 | 2.5 | 25 | 4.2 |
| IT 364** | 50 | 50 | 60 | 10* | 0.8 | 3.5 | 42 | 42 | 3.5 | 2.5 | 25 | 4.2 |
| IT 370 | 27 | 32.2 | 23.7 | 5.5 | 0.45 | 0.7 | 20 | 10 | 3.5 | 2.5 | 25 | 4.2 |
* Tolerance is 0.1
** Not suitable for PCB-mounting.
2411272239_TE---Schaffner-IT239_C6061921.pdf
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