50pcs TO-220 Series MOS Transistors Kit IRFZ44N IRF510N IRF540N IRF3205 IRF9540N 55V To 500V For IRFZ44N IRF540N And IRF3205

50pcs TO-220 Power MOSFET Assortment Kit — 10 Types, 55V to 500V, N & P Channel

A comprehensive TO-220 power MOSFET assortment covering 10 of the most commonly used N-channel and P-channel MOSFETs in power electronics, from 55V/110A low-voltage high-current types to 500V/8A high-voltage types. 5 pieces of each type, 50 pieces total — ideal for prototyping, repair stock, and educational use. All devices are in standard TO-220 through-hole package compatible with breadboards, perfboards, and standard TO-220 heatsinks.

Kit Contents (50 Pieces Total — 5pcs Each)

• IRFZ44N: N-Ch, 55V, 49A, Rds(on)=17.5mΩ — logic-level compatible, Arduino motor control
• IRF510N: N-Ch, 100V, 5.6A, Rds(on)=540mΩ — low-current, RF amplifier, audio applications
• IRF520N: N-Ch, 100V, 9.7A, Rds(on)=270mΩ — general-purpose medium-current switching
• IRF530N: N-Ch, 100V, 17A, Rds(on)=90mΩ — medium-power motor control and DC-DC converters
• IRF540N: N-Ch, 100V, 33A, Rds(on)=44mΩ — high-current 48V–72V bus switching
• IRF640N: N-Ch, 200V, 18A, Rds(on)=150mΩ — 200V bus applications, offline SMPS
• IRF740: N-Ch, 400V, 10A, Rds(on)=550mΩ — offline flyback and forward converter switching
• IRF840: N-Ch, 500V, 8A, Rds(on)=850mΩ — high-voltage offline SMPS, motor drives
• IRF3205: N-Ch, 55V, 110A, Rds(on)=8mΩ — highest current in kit, inverters and H-bridges
• IRF9540N: P-Ch, 100V, 23A, Rds(on)=117mΩ — high-side P-channel switch, H-bridge complement

Quick Selection Guide by Application

• Arduino PWM motor control (12V, ≤10A): IRFZ44N (logic-level, easy to drive from 5V)
• High-current 12V inverter (low-side): IRF3205 (110A, 8mΩ, lowest conduction loss)
• 48V bus DC-DC converter: IRF540N (100V, 33A, good balance of voltage and current)
• Offline flyback SMPS (230V AC input): IRF840 (500V, handles 325V DC bus with margin)
• High-side P-channel switch (12V–48V): IRF9540N (100V, 23A, no bootstrap needed)
• H-bridge motor driver (high-side): IRF9540N (P-Ch) + IRFZ44N or IRF3205 (N-Ch)

TO-220 Pinout (All Devices)

• Pin 1 (left): Gate (G)
• Pin 2 (center): Drain (D)
• Pin 3 (right): Source (S)
• Tab (metal): Drain (D) — use insulating pad when mounting to grounded heatsink

Gate Drive Notes

• All N-channel devices require Vgs = 10V for full Rds(on) specification
• IRFZ44N has Vgs(th) = 2–4V — partially enhanced at 5V, suitable for Arduino direct drive at low currents
• IRF510N/520N/530N/540N/640N/740/840 require 10V gate drive for full performance
• IRF9540N (P-channel) requires Vgs = −10V for full enhancement (gate must be pulled 10V below source)
• Use gate driver ICs (IR2104, TC4420, UCC27524) for high-frequency switching or high-current applications
• Add 10–22Ω series gate resistor to limit switching speed and reduce EMI

Typical Applications

• Prototyping and breadboard power electronics experiments
• Repair stock for inverters, motor drives, and SMPS
• Educational electronics lab — covers full voltage range from 55V to 500V
• H-bridge motor driver design and testing
• DC-DC converter power stage prototyping
• Offline flyback and forward converter switching element
• Battery management system (BMS) discharge MOSFET

Package Contents

• 50 × TO-220 power MOSFET (5 pieces each of 10 types as listed above)

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