Renesas 2SK2529-E

Overview

2SK2529-E from Renesas Electronics is a silicon N-channel power MOSFET designed for high-speed switching in DC-DC converters, motor drives, and uninterruptible power supplies. It delivers R_DS(on) = 7 mΩ (typ.) at V_GS = 10 V, supports 50 A continuous drain current, and features integrated body diode with t_rr = 135 ns - enabling efficient synchronous rectification and hard-switching topologies.

For engineers reviewing the 2SK2529-E datasheet, 2SK2529-E pinout, 2SK2529-E application, or 2SK2529-E equivalent, this device is selected for high-current, low-loss power stage design where gate drive compatibility with 5 V logic, avalanche ruggedness (E_AR = 174 mJ), and thermal stability up to T_ch = 150°C are critical selection criteria.

Technical Context

This MOSFET employs a planar vertical DMOS structure optimized for low conduction loss and fast switching. Its 60 V V_DSS rating and ±20 V V_GSS tolerance support robust gate control in noisy industrial environments, while the 4 V gate threshold enables direct interfacing with standard 5 V microcontroller outputs without level-shifting.

Thermal performance is defined by θ_ch–c = 3.57°C/W (case-to-channel), and safe operating area (SOA) is validated up to 10 ms pulse width at T_c = 25°C. The device's C_iss = 3550 pF and Cr_ss = 500 pF values indicate moderate Miller effect, supporting stable operation with standard gate drivers like TC4420 or UCC27531.

Key Specifications

Pinout & Package

2SK2529-E uses the TO-220CFM (RENESAS code PRSS0003AE-A) package: insulated tab, vertical mounting, single-screw hole, 1.9 g mass. Thermal resistance from channel to case is 3.57°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP55NF06L and IRF1404ZPBF, the 2SK2529-E uniquely balances low on-resistance, 60 V rating, and certified avalanche energy - making it optimal for high-reliability industrial switching where transient overvoltage and inductive kickback are routine.

Availability

2SK2529-E is available at Aetrix Electronics and suitable for industrial motor drives, server power supplies, uninterruptible power systems, and DC fast charging modules requiring stable component supply and long-term production continuity.

Supply support for 2SK2529-E 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 global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and infrastructure markets.

The 2SK2529-E belongs to Renesas' legacy high-power discrete MOSFET family, engineered for ruggedized industrial switching applications demanding high current density, avalanche survivability, and gate-drive simplicity.

FAQ

What is the maximum continuous drain current rating for the 2SK2529-E?

The 2SK2529-E is rated for 50 A continuous drain current at case temperature T_c = 25°C. Derating is required above 25°C per the thermal resistance θ_ch–c = 3.57°C/W and the maximum channel temperature limit of 150°C. At T_c = 100°C, the usable I_D drops to approximately 28 A. This rating assumes proper heatsinking and PCB copper area per Renesas' recommended layout guidelines in the 2SK2529-E datasheet.

Does the 2SK2529-E support 5 V logic-level gate drive?

Yes, the 2SK2529-E is explicitly characterized for 4 V gate drive: R_DS(on) is guaranteed ≤16 mΩ at V_GS = 4 V and I_D = 25 A. Its V_GS(th) range of 1.0–2.0 V ensures full enhancement with standard 5 V CMOS outputs, eliminating the need for gate driver ICs in many low-frequency (<50 kHz) applications. For high-frequency switching, a dedicated driver is still recommended to manage Q_g = ~120 nC efficiently.

What is the avalanche energy rating of the 2SK2529-E and how is it tested?

The 2SK2529-E has a repetitive avalanche energy rating E_AR = 174 mJ at T_ch = 25°C, measured with I_AP = 45 A, V_DD = 25 V, R_g ≥ 50 Ω, and duty cycle < 0.1%. This rating is verified using the standardized avalanche test circuit shown in the 2SK2529-E datasheet (page 5), confirming robustness against inductive turn-off transients in motor and solenoid control. It is not a one-shot rating but validated for repetitive operation under specified conditions.

Is the metal tab of the 2SK2529-E electrically connected to any internal terminal?

Yes, the metal tab of the 2SK2529-E (TO-220CFM package) is internally connected to the Drain terminal. This is confirmed in the pinout diagram (page 1) and package outline drawing (page 7) of the 2SK2529-E datasheet. When mounted to a heatsink, electrical isolation via mica washer or insulating pad is mandatory unless the heatsink is intentionally held at drain potential. Failure to isolate may cause short-circuit or ground loop issues in floating-source configurations.

What are the key thermal parameters of the 2SK2529-E and how do they impact PCB layout?

The 2SK2529-E has θ_ch–c = 3.57°C/W (channel-to-case) and a maximum channel temperature of 150°C. To maintain reliability, the PCB must provide low thermal resistance from case to ambient - typically achieved with ≥200 mm² of 2 oz copper connected directly to the source and drain pads, plus thermal vias under the tab. The transient thermal impedance curve (page 5) shows γ_s(t) degrades rapidly beyond 10 ms, so layout must prioritize steady-state conduction over short-pulse dissipation. The 2SK2529-E datasheet recommends minimum copper area and via count for each mounting scenario.