Component Comparison: NX3008NBKS,115 vs IMBG120R022M2HXTMA1

1. Quick verdict

For low-voltage, low-current signal switching or level shifting where space and gate charge matter, the NX3008NBKS,115 is the clear choice due to its low gate charge, small package, and logic-level drive. For high-voltage, high-current power conversion — especially in industrial or automotive traction inverters — the IMBG120R022M2HXTMA1 is the only viable option, offering 1200 V blocking, 87 A continuous current, and SiC technology for efficiency and thermal robustness.

2. Spec comparison table

SpecNX3008NBKS,115IMBG120R022M2HXTMA1Notes
TechnologyMOSFET (Metal Oxide)SiCFET (Silicon Carbide)SiC enables higher voltage, temperature, and efficiency at cost of complexity
Fet type2 N-Channel (Dual)N-ChannelNX3008NBKS has dual devices; IMBG120R022M2HXTMA1 is single but high power
Drain-Source Voltage (Vds) max30 V1200 VIMBG120R022M2HXTMA1 supports 40x higher voltage, essential for high-voltage systems
Continuous Drain Current (Id) @ 25°C350 mA87 A (Tc)IMBG120R022M2HXTMA1 supports ~250x higher current, suitable for power applications
Drain Current Spiking Max1.4 A310 A (typ peak)IMBG120R022M2HXTMA1 handles large surge currents
Rds(on) Typ @ 25°C1.0 – 1.4 Ω @ 350 mA, 4.5 V21.6 mΩ @ 32.1 A, 18 VIMBG120R022M2HXTMA1 has orders of magnitude lower Rds(on), critical for high current
Gate Threshold Voltage (Vgs_th) Typ0.6 – 1.1 V4.2 VNX3008NBKS is logic-level (lower gate drive voltage)
Gate Charge (Qg) Typical0.52 – 0.68 nC @ 4.5 V71 nC @ 18 VNX3008NBKS has extremely low gate charge, reducing gate drive losses
Input Capacitance (Ciss) Typ34 – 50 pF @ 15 V100 pF – 2330 pF @ 800 VNX3008NBKS input capacitance is much lower, easier to drive at logic level
Output Capacitance (Coss) Typ6.5 pF131.3 pFNX3008NBKS has lower output capacitance, beneficial in fast switching at low power
Reverse Transfer Capacitance (Crss) Typ2.2 pF9 pFLower Crss in NX3008NBKS reduces Miller effect and switching losses
Max Power Dissipation445 mW385 W (Tc)IMBG120R022M2HXTMA1 can handle ~860x more power dissipation
Operating Temperature Range-55 to +150 °C-55 to +175 °CIMBG120R022M2HXTMA1 supports higher max TJ, useful for harsh environments
Package6-TSSOP (2.2 × 1.35 mm)PG-TO263-7-12 (5.2 × 4.5 mm)NX3008NBKS is much smaller, suitable for dense PCB layouts
Thermal Resistance (RθJA) Typ300 K/W per device0.39 K/WIMBG120R022M2HXTMA1 requires heavy heatsinking, NX3008NBKS dissipates less power
ESD Rating2000 VNot specifiedNX3008NBKS is qualified for 2 kV ESD, IMBG120R022M2HXTMA1 data missing
QualificationAEC-Q101 (Automotive Grade)Not specifiedNX3008NBKS suitable for automotive reliability programs
Gate Voltage Max/Min±8 V+23 V / -10 VIMBG120R022M2HXTMA1 needs higher gate drive voltages, increasing gate driver complexity
Turn-On Delay / Rise Time (Typ)15–30 ns / 11 ns6 ns / 16.9 nsIMBG120R022M2HXTMA1 switches faster, but with higher gate voltage and charge
Turn-Off Delay / Fall Time (Typ)69–138 ns / 19 ns11.3 ns / 7.4 nsIMBG120R022M2HXTMA1 is faster, beneficial in high-frequency switching
Drain Leakage Current Typ @ 25°C1 µA4.7 µANX3008NBKS has lower leakage, but both low enough for most applications
Gate Leakage Current Typ0.2 – 1 µA (varies with Vgs)120 nAIMBG120R022M2HXTMA1 has significantly lower gate leakage current
Package Footprint Dimensions2.2 × 1.35 mm5.2 × 4.5 mmNX3008NBKS footprint is ~1/10th area of IMBG120R022M2HXTMA1
Power Dissipation (typ)280 mW385 WIMBG120R022M2HXTMA1 designed for high power dissipation
Avalanche Energy (typ)Not specified403 mJIMBG120R022M2HXTMA1 supports avalanche capability, important for rugged power stages
Short Circuit Withstand Time (typ)Not specified2 µsIMBG120R022M2HXTMA1 can survive short circuit pulses

3. Design trade-offs

The NX3008NBKS,115 and IMBG120R022M2HXTMA1 are fundamentally different devices targeting vastly different applications. The NX3008NBKS,115 is a low-voltage dual MOSFET in a small 6-TSSOP package, optimized for signal-level switching and low current loads. Its extremely low gate charge (~0.6 nC), low input capacitance, and logic-level gate threshold voltage (~0.6–1.1 V) make it easy to drive directly from low-voltage CMOS or MCU GPIOs without dedicated gate drivers or charge pumps. This simplifies the driver circuitry and reduces PCB complexity. However, its Rds(on) is high (~1 Ω at 350 mA), and it cannot handle currents beyond a few hundred milliamps.

In contrast, the IMBG120R022M2HXTMA1 is a high-voltage (1200 V), high-current (87 A continuous) SiC MOSFET designed for power conversion in industrial, automotive, or renewable energy systems. Its extremely low Rds(on) of 21.6 mΩ at 32.1 A drastically reduces conduction losses at tens of amps. However, it requires a high gate drive voltage (15–18 V recommended) and has a large total gate charge (~71 nC), necessitating a dedicated gate driver IC and careful gate drive design to minimize switching losses and avoid gate voltage overshoot. Its switching times are much faster than NX3008NBKS (6–11 ns turn-on/off delay), but this requires careful layout to avoid EMI and voltage ringing.

Thermally, NX3008NBKS dissipates less than 0.5 W max and can rely on PCB copper for heat sinking, whereas IMBG120R022M2HXTMA1 dissipates hundreds of watts and needs a large copper area and heatsink or active cooling. The TO-263 package of the IMBG supports thermal conduction to a heat sink, but increases PCB area and complicates mechanical design.

Regarding efficiency, the SiC device is designed for high-efficiency power stages where switching losses and conduction losses dominate. The NX3008NBKS,115 is not intended for power switching but for low-level signals or load switching under 1 A.

Cost-wise, the NX3008NBKS,115 is a low-cost, high-volume automotive-grade device with AEC-Q101 qualification, suitable for mass-market products. The IMBG120R022M2HXTMA1 is a specialized, more expensive SiC MOSFET with a niche in high-voltage power electronics.

4. Use-case fit

Choose NX3008NBKS,115 when…