Renesas 2SK3116-S-AZ

Overview

2SK3116-S-AZ from Renesas Electronics is an N-channel enhancement-mode power MOSFET in TO-262 (MP-25 Fin Cut) package, designed for high-voltage switching applications including offline AC-DC adapters and flyback converters. It delivers V_DSS = 600 V, R_DS(on) ≤ 1.2 Ω at V_GS = 10 V and I_D = 3.75 A, Q_G = 26 nC typical, and features built-in avalanche energy rating E_AS = 37.5 mJ.

For engineers reviewing the 2SK3116-S-AZ datasheet, 2SK3116-S-AZ pinout, 2SK3116-S-AZ application, or 2SK3116-S-AZ equivalent, key selection criteria include its 600 V blocking capability, low gate charge for high-frequency hard-switching, avalanche ruggedness in unclamped inductive load conditions, and TO-262 thermal performance with exposed drain tab.

Technical Context

This device uses a double-diffused metal-oxide-semiconductor (DMOS) structure optimized for high-voltage operation and fast switching. Its gate threshold voltage V_GS(off) ranges from 2.5 V to 3.5 V, ensuring reliable turn-on with standard 10 V gate drivers while maintaining noise immunity. The body diode exhibits t_rr = 1.6 µs and Q_rr = 7.6 µC under specified test conditions, supporting moderate-frequency discontinuous conduction mode (DCM) operation.

The device's capacitance profile-C_iss = 1100 pF, C_oss = 200 pF, C_rss = 20 pF at V_DS = 10 V-enables predictable gate drive design and low Miller-induced shoot-through risk. Switching times are t_d(on) = 18 ns, t_r = 15 ns, t_d(off) = 50 ns, and t_f = 15 ns at V_DD = 150 V, I_D = 3.75 A, and R_G = 10 Ω, confirming suitability for 50–200 kHz SMPS topologies.

Key Specifications

Pinout & Package

2SK3116-S-AZ is housed in a TO-262 (MP-25 Fin Cut) package with three leads and an exposed drain tab (fin) electrically connected to Drain. The package provides enhanced thermal transfer versus TO-220AB and is compatible with automated through-hole assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP6NK60ZFP and IXTP50N10P, the 2SK3116-S-AZ uniquely combines 600 V rating, certified avalanche energy, and TO-262 thermal performance-making it the only option among the three qualified for ruggedized, universal-input offline SMPS primary switches requiring both voltage headroom and pulse energy tolerance.

Availability

2SK3116-S-AZ is available at Aetrix Electronics and suitable for AC-DC adapters, flyback converters, and LED driver power stages requiring stable component supply and long-term industrial availability.

Supply support for 2SK3116-S-AZ 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

Renesas Electronics Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog and power devices, and SoC solutions for industrial, automotive, and consumer markets.

The 2SK3116-S-AZ belongs to Renesas' legacy high-voltage discrete MOSFET product line, engineered specifically for reliability-critical offline power conversion in Standard-grade applications such as consumer adapters and industrial auxiliary supplies.

FAQ

What is the maximum continuous drain current rating for the 2SK3116-S-AZ?

The 2SK3116-S-AZ has a maximum continuous drain current I_D(DC) of ±7.5 A at T_A = 25 °C. However, practical current capability depends on PCB layout, heatsinking, and ambient temperature. With proper TO-262 mounting on ≥2 oz copper and a small heatsink, sustained 4–5 A operation is achievable in typical adapter designs.

Does the 2SK3116-S-AZ have a built-in body diode, and what are its key parameters?

Yes, the 2SK3116-S-AZ integrates a parasitic body diode between source and drain. Its forward voltage V_F(S-D) is 1.0 V at I_F = 7.5 A and V_GS = 0 V, with reverse recovery time t_rr = 1.6 µs and Q_rr = 7.6 µC under standardized test conditions-parameters essential for modeling losses in flyback and resonant converters.

Can the 2SK3116-S-AZ replace the 2SK3116 in existing TO-220AB designs?

No, the 2SK3116-S-AZ uses a TO-262 package with different lead spacing, footprint, and thermal interface (exposed drain fin). While electrically identical to the 2SK3116, mechanical redesign-including pad layout, heatsink attachment, and soldering process-is required to use the 2SK3116-S-AZ in place of the TO-220AB variant.

What is the gate-to-source voltage limit for the 2SK3116-S-AZ, and why is it important?

The 2SK3116-S-AZ specifies a gate-to-source voltage rating of ±30 V. Exceeding this can permanently damage the thin gate oxide layer. This limit governs gate driver selection-standard 12–15 V logic-level drivers are safe, but overvoltage transients from poor layout or inductive coupling must be clamped using Zener diodes or active gate control.

Is the 2SK3116-S-AZ suitable for automotive applications?

No-the 2SK3116-S-AZ is classified as a Standard-grade Renesas product intended for computers, office equipment, and consumer appliances per datasheet quality grading. It is not qualified for automotive (High Quality grade) or safety-critical (Specific grade) use, and lacks AEC-Q101 qualification, extended temperature validation, or automotive-specific reliability testing.