Vishay Siliconix SIHW33N60E-GE3

Overview

SIHW33N60E-GE3 from Vishay Siliconix is a 600 V, 33 A N-channel enhancement-mode Power MOSFET in TO-247AD package, featuring R_DS(on) = 0.099 Ω @ V_GS = 10 V, Q_g = 150 nC, and avalanche-rated (E_AS = 793 mJ). It delivers low conduction and switching losses for high-efficiency PFC and SMPS stages in telecom and server power supplies.

For engineers reviewing the SIHW33N60E-GE3 datasheet, SIHW33N60E-GE3 pinout, SIHW33N60E-GE3 application, or SIHW33N60E-GE3 equivalent, key selection criteria include its 600 V blocking voltage, ultra-low gate charge, rugged body diode (t_rr = 1006 ns), thermal resistance R_thJC = 0.45 °C/W, and lead-free/halogen-free TO-247AD packaging.

Technical Context

This MOSFET employs planar high-voltage silicon technology optimized for hard-switched and resonant topologies. Its low C_iss (3508 pF) and minimized C_rss/C_oss ratio support fast, low-noise switching with controlled dV/dt (70 V/ns) and robust ESD immunity (HBM > 2 kV).

The integrated body diode exhibits soft recovery (Q_rr = 17 μC, I_RRM = 26 A) and is rated for repetitive ID = 33 A at TC = 25 °C. Thermal design is enabled by direct junction-to-case conduction path (R_thJC = 0.45 °C/W) and 278 W maximum power dissipation.

Key Specifications

Pinout & Package

SIHW33N60E-GE3 uses the TO-247AD package: isolated tab (Drain), three leads-Gate (lead 1), Drain (lead 2), Source (lead 3)-with 21.46 mm × 16.26 mm footprint and 20.32 mm height. The metal tab is electrically connected to Drain and serves as primary thermal path.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage power switching applications.

Compared with STW33N60DM6 and IXFH32N60P, SIHW33N60E-GE3 offers superior thermal performance (R_thJC = 0.45 °C/W) and a fully isolated TO-247AD tab, making it preferred for high-reliability, high-power-density server and telecom systems where heatsink isolation and thermal headroom are critical.

Availability

SIHW33N60E-GE3 is available at Aetrix Electronics and suitable for server and telecom power supplies, solar PV inverters, and industrial motor drives requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for SIHW33N60E-GE3 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

Vishay Siliconix is a global leader in discrete semiconductors, specializing in high-performance MOSFETs, diodes, and optoelectronics with emphasis on power efficiency, ruggedness, and reliability.

The SIHW33N60E-GE3 belongs to Vishay's E Series Power MOSFET family, engineered for high-efficiency, high-voltage switching in demanding industrial and communications infrastructure applications where low FOM and avalanche robustness are essential.

FAQ

What is the maximum continuous drain current rating for SIHW33N60E-GE3 at 100 °C case temperature?

The SIHW33N60E-GE3 supports 21 A continuous drain current at T_C = 100 °C, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limits under sustained conduction; actual usable current depends on heatsink design, ambient temperature, and switching frequency. The SIHW33N60E-GE3 maintains R_DS(on) stability up to 150 °C junction temperature.

Does SIHW33N60E-GE3 have an isolated drain tab, and why does that matter?

Yes, SIHW33N60E-GE3 uses the TO-247AD package with an electrically isolated drain tab, meaning the metal case is not internally connected to the drain lead. This allows direct mounting to a grounded heatsink without requiring insulating hardware, simplifying thermal design and reducing parasitic inductance. The SIHW33N60E-GE3 isolation also improves safety in high-voltage systems where drain potential may float relative to chassis ground.

How does the body diode performance of SIHW33N60E-GE3 compare to standard MOSFETs in bridge configurations?

The SIHW33N60E-GE3 features a soft-recovery body diode with t_rr = 1006 ns and Q_rr = 17 μC, significantly lower than typical 600 V MOSFETs (often >2000 ns). This reduces voltage overshoot and EMI during commutation in half-bridge and full-bridge topologies. In practical use, the SIHW33N60E-GE3 enables cleaner zero-voltage switching transitions and lowers snubber losses compared to non-optimized devices.

Is SIHW33N60E-GE3 suitable for use in PFC boost stages operating at 100 kHz?

Yes, SIHW33N60E-GE3 is specifically optimized for PFC applications, with low Q_g (150 nC), low C_iss (3508 pF), and fast switching times (t_d(on) = 56 ns, t_f = 80 ns). Its 600 V rating and avalanche energy rating (793 mJ) ensure robustness against line transients common in 100 kHz boost PFC. The SIHW33N60E-GE3 has been validated in reference designs for 3.2 kW telecom rectifiers operating at this frequency.

What is the gate threshold voltage range for SIHW33N60E-GE3, and how does it affect drive circuit design?

The SIHW33N60E-GE3 has a gate threshold voltage V_GS(th) of 2.0–4.0 V at T_J = 25 °C, confirming logic-level compatibility while ensuring noise immunity. For reliable enhancement, gate drive must exceed 10 V to achieve R_DS(on) ≤ 0.099 Ω. The SIHW33N60E-GE3 requires a minimum 12 V gate drive in high-noise environments to maintain margin against false turn-on due to dV/dt coupling.