Renesas RJK4512DPP-E0#T2

Overview

RJK4512DPP-E0#T2 from Renesas Electronics is a 450 V, 14 A N-channel power MOSFET in TO-220FP package, optimized for high-speed switching in offline AC-DC converters and motor drive half-bridges. It delivers R_DS(on) = 0.43 Ω (typ.) at V_GS = 10 V, t_r = 25 ns, and Q_g = 29 nC, enabling efficient 65–100 kHz SMPS designs.

For engineers reviewing the RJK4512DPP-E0#T2 datasheet, RJK4512DPP-E0#T2 pinout, RJK4512DPP-E0#T2 application, or RJK4512DPP-E0#T2 equivalent, key selection criteria include its 450 V V_DSS, 30 W channel dissipation at T_c = 25°C, body diode t_rr = 280 ns, and suitability for flyback/LLC primary-side switching where low conduction loss and fast turn-off are critical.

Technical Context

This MOSFET employs a planar silicon process with optimized gate charge distribution (Q_gd/Q_g = 44.8%) to balance switching speed and EMI control. Its 4.17 °C/W θ_ch-c enables direct heatsink mounting without thermal interface material in 15–25 W per device applications.

The device features a built-in body diode with V_DF = 0.89 V (typ.) at I_F = 14 A and soft reverse recovery (t_rr = 280 ns), supporting quasi-resonant and synchronous rectification topologies without external freewheeling diodes.

Key Specifications

Pinout & Package

Package: TO-220FP (RENESAS code PRSS0003AG-A), insulated tab, vertical mounting, 1.9 g mass, JEITA-compliant outline with 15.87 mm height and 10.16 mm width.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP14NK45Z and IXTH12N45P, the RJK4512DPP-E0#T2 offers optimal balance of conduction loss (0.43 Ω), switching speed (25 ns t_r), and thermal resistance (4.17 °C/W), making it the preferred choice for space-constrained 65–150 W offline SMPS requiring ≥88% efficiency.

Availability

RJK4512DPP-E0#T2 is available at Aetrix Electronics and suitable for AC-DC power adapters, industrial motor drives, LED street lighting drivers, and UPS inverters requiring stable component supply and long-term industrial lifecycle support.

Supply support for RJK4512DPP-E0#T2 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 headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The RJK4512DPP-E0#T2 belongs to Renesas' high-voltage power MOSFET product line, engineered specifically for reliable, high-efficiency switching in 400 V-class industrial power supplies and motor control systems.

FAQ

What is the maximum gate-to-source voltage rating for RJK4512DPP-E0#T2?

The RJK4512DPP-E0#T2 has a maximum gate-to-source voltage rating of ±30 V, as specified in its Absolute Maximum Ratings table. Exceeding this range risks permanent gate oxide damage. Designers must ensure gate drive circuits limit transient spikes using clamping zeners or integrated gate protection, especially in high-dV/dt environments like PFC boost stages where coupling can induce >25 V spikes on the gate node relative to source.

Does RJK4512DPP-E0#T2 include an integrated body diode, and what are its key parameters?

Yes, the RJK4512DPP-E0#T2 integrates a body-drain diode with V_DF = 0.89 V (typ.) at I_F = 14 A and reverse recovery time t_rr = 280 ns (typ.) under specified test conditions. This diode supports freewheeling in half-bridge and flyback topologies without external components, though its soft recovery characteristic requires careful snubber design in hard-switched applications to avoid voltage overshoot exceeding the 450 V V_DSS rating.

What thermal performance can be expected from RJK4512DPP-E0#T2 in a typical PCB layout?

With its 4.17 °C/W channel-to-case thermal impedance, the RJK4512DPP-E0#T2 dissipates 30 W at T_c = 25°C. In practice, a 25 mm² 2-oz copper pad with thermal vias achieves ~55 °C/W board-level θ_JA, allowing 12 W continuous dissipation at 70°C ambient. For full 30 W operation, a bolted heatsink with θ_SA ≤ 1.5 °C/W is required to maintain T_ch ≤ 150°C, as confirmed by the device's transient thermal impedance curve on page 5 of the datasheet.

How does the gate charge profile of RJK4512DPP-E0#T2 affect driver selection?

The RJK4512DPP-E0#T2 specifies total gate charge Q_g = 29 nC, with Q_gs = 5.5 nC and Q_gd = 13 nC. This distribution indicates a Miller plateau duration requiring ≥1 A peak current from the gate driver to achieve 25 ns rise time. Drivers such as the Texas Instruments UCC27531 (1.5 A sink/source) or ON Semiconductor NCP3420 (2 A) are validated matches; weaker drivers (<0.5 A) will extend t_r beyond 50 ns, increasing switching loss disproportionately.

Is RJK4512DPP-E0#T2 suitable for automotive applications?

No, the RJK4512DPP-E0#T2 is classified as a "Standard" quality grade device per Renesas documentation, intended for office equipment, industrial robots, and consumer electronics-not transportation systems. It lacks AEC-Q101 qualification, extended temperature validation beyond 150°C channel rating, or automotive-specific reliability testing. For automotive 450 V switching, Renesas' RV4xxx series or Infineon's IPA60R450P7XKSA1 are qualified alternatives.