Infineon Technologies SPP77N06S2-12

Overview

SPP77N06S2-12 from Infineon Technologies is an N-channel enhancement-mode OptiMOS™ power MOSFET rated for 55 V V_DS, 12 mΩ R_DS(on) at V_GS = 10 V, and 80 A continuous drain current at T_C = 25 °C. It operates up to 175 °C junction temperature, features avalanche and dv/dt ruggedness, and is housed in a TO-220-3-1 package. It serves as a high-current switching element in DC-DC converters, motor drives, and industrial power supplies.

For engineers reviewing the SPP77N06S2-12 datasheet, SPP77N06S2-12 pinout, SPP77N06S2-12 application, or SPP77N06S2-12 equivalent, key selection criteria include R_DS(on) stability over temperature, single-pulse avalanche energy (280 mJ), gate charge (Q_g = 45–60 nC), diode forward voltage (V_SD = 1.0–1.3 V), and thermal resistance (R_thJC = 0.63–0.95 K/W).

Technical Context

This MOSFET employs trench-based OptiMOS™ technology optimized for low conduction and switching losses in hard-switched topologies. Its 55 V breakdown voltage supports 48 V bus systems, while its 12 mΩ R_DS(on) enables high-efficiency operation at 80 A DC with minimal thermal rise under forced-air or heatsink-cooled conditions.

The device integrates a robust body diode with reverse recovery time (t_rr) of 45–60 ns and Q_rr of 64–80 nC, enabling reliable freewheeling in synchronous rectification and H-bridge configurations. Gate threshold voltage (V_GS(th) = 2.1–4.0 V) ensures stable turn-on with standard 5 V or 10 V logic-level drivers.

Key Specifications

Pinout & Package

Supplied in P-TO220-3-1 package: isolated tab, through-hole mounting, drain-connected tab for direct heatsinking. Standard three-terminal configuration with G, D, S layout.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel power MOSFET applications.

Compared with IRFB7545PBF and STP80NF55-08, SPP77N06S2-12 delivers superior dv/dt immunity and avalanche energy margin while maintaining competitive R_DS(on) and gate charge - making it optimal for industrial motor control and uninterruptible power systems where reliability under transient stress is non-negotiable.

Availability

SPP77N06S2-12 is available at Aetrix Electronics and suitable for industrial motor drives, 48 V DC-DC converters, and UPS output stages requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for SPP77N06S2-12 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power, sensor, and automotive ICs, with global manufacturing and R&D infrastructure.

This device belongs to the OptiMOS™ power transistor product line, engineered for high-efficiency, high-reliability switching in industrial power conversion, motor control, and renewable energy systems.

FAQ

Is SPP77N06S2-12 suitable for 48 V automotive applications?

No - although rated for 55 V V_DS, this part is not AEC-Q101 qualified and lacks automotive-specific qualification testing (e.g., HTOL, temperature cycling). It is designed for industrial and commercial power systems only. Automotive-grade alternatives require explicit AEC-Q101 certification and extended temperature validation.

What is the maximum recommended gate resistor for 100 kHz switching?

For 100 kHz hard-switching with 10 V gate drive, a 6.2 Ω gate resistor matches the typical test condition in the datasheet (t_d(on), t_r, t_d(off), t_f). Using ≥10 Ω increases switching time and loss; ≤4.7 Ω may cause ringing due to PCB inductance and requires careful layout with local decoupling.

Does the TO-220-3-1 package have electrically isolated tab?

No - the metal tab is internally connected to the Drain (Pin 2). Electrical isolation from the heatsink is mandatory unless the heatsink is at drain potential. Use insulating pads or shoulder washers with thermal compound when mounting to grounded or floating heatsinks.

Can SPP77N06S2-12 replace SPB77N06S2-12 in a design?

Yes - both share identical electrical specifications and die, differing only in package: SPP77N06S2-12 uses TO-220-3-1 (leaded), SPB77N06S2-12 uses TO-263-3-2 (SMD). Mechanical redesign is required for footprint and thermal interface, but no circuit or layout changes are needed for electrical performance.