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The NTSJ40120CTG is a Trench-based Schottky rectifier manufactured by onsemi, housed in a TO-220FP (CASE 221AH) package. It features a dual common cathode configuration with an average rectified forward current of 40 A per device and 20 A per diode at a case temperature of 120°C. The peak repetitive reverse voltage is rated at 120 V. Maximum instantaneous forward voltage reaches 0.91 V at 20 A and 25°C. Nonrepetitive peak surge current capability is 250 A. Operating junction temperature ranges from -40°C to +150°C.
Verify the specific ordering suffix 'G' confirms Pb-Free and Halide-Free packaging status as documented in the datasheet. Confirm the physical package type matches the TO-220FP designation (CASE 221AH). Ensure compatibility with through-hole mounting requirements specified for this component variant.
Select this component when a low-profile TO-220FP package is required for high-current applications. The 40 A rating supports substantial load currents while maintaining low forward voltage drop. Consider the thermal characteristics and derating curves for optimal performance under varying case temperatures.
This part belongs to the NTSx40120CT family of Very Low Forward Voltage Trench-based Schottky Rectifiers. Other members include NTST40120CTG, NTSB40120CT-1G, NTSB40120CTG, and NTSB40120CTT4G. These devices share similar electrical ratings but differ in package styles such as TO-220, I2PAK, and D2PAK.
Direct substitutes within the same family include NTST40120CTG, NTSB40120CT-1G, NTSB40120CTG, and NTSB40120CTT4G. Verify that the replacement part matches the required package style and pinout configuration before implementation.
The maximum nonrepetitive peak surge current is 250 A, applied at rated load conditions for a half-wave, single-phase, 60 Hz surge.
The typical instantaneous forward voltage decreases as temperature increases. For example, at 5 A, it drops from 0.50 V at 25°C to 0.43 V at 125°C.
The maximum thermal resistance from junction to case is 1.3 °C/W for the NTSJ40120CTG.