

This Logic Level Insulated Gate Bipolar Transistor (IGBT) features monolithic circuitry integrating ESD and Over-Voltage clamped protection for use in inductive coil drivers applications. Primary uses include Ignition, Direct Fuel Injection, or wherever high voltage and high current switching is required. This device is a significant enhancement to the standard DPAK ignition IGBT device, NGD15N41CLT4. This device offers higher Unclamped Inductive Switching (UIS) energy and lower Collector-Emitter Saturation Voltage, Vce(on).
End Products:
- Automotive
- DPAK Package Offers Smaller Footprint and Increased Board Space
- New Design Increase Unclamped Inductive Switching (UIS) Energy per Area
- Temperature Compensated Gate-Collector Voltage Clamp Limits Stress Applied to Load
- Integrated Gate-Emitter ESD Protection
- Low Threshold Voltage to Interface Power Loads to Logic-Level Microprocessor Devices
- Low Saturation Voltage
- High Pulsed Current Capability
- Optional Gate Resistor and Gate-Emitter Resistor
- Emitter Ballasting for Short-Circuit Protection
LGD18N40ATH Parts
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Part Number | Actions | TYP BVCES@IC (V) | ICmax (A) | VCE(sat) (V) | EAS (mJ) | PDMAX (W) |
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Part Number | Actions | TYP BVCES@IC (V) | ICmax (A) | VCE(sat) (V) | EAS (mJ) | PDMAX (W) | |
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400 | 18 | 1.8 | 400 | 115 |
LGD18N40ATH Applications
- Ignition Systems
Series: LGD18N40ATH Resources

Automotive Ignition Application Schematic
Learn which components Littelfuse can provide to help ensure safe, controlled, and efficient combustion for ICEs.