Renesas 2SK852-T2-A

Overview

2SK852-T2-A from Renesas Electronics is an N-channel enhancement-mode vertical DMOS power MOSFET designed for high-speed switching in DC-DC converters and motor drive circuits. It features a drain-source voltage rating of 60 V, continuous drain current of 3 A at T_c = 25 °C, and on-resistance of 0.12 Ω (typical) at V_GS = 10 V - enabling efficient low-voltage power control in compact industrial and consumer power supplies.

For engineers reviewing the 2SK852-T2-A datasheet, 2SK852-T2-A pinout, 2SK852-T2-A application, or 2SK852-T2-A equivalent, key selection considerations include its TO-236AB (SC-59) package footprint, gate threshold voltage range of 1.0–2.5 V, and specified safe operating area (SOA) for repetitive pulse conditions - critical for flyback and half-bridge topologies.

Technical Context

This discrete MOSFET operates as a unidirectional power switch with voltage-controlled gate drive. Its vertical DMOS structure delivers low R_DS(on) and fast turn-on/turn-off times (t_on = 25 ns, t_off = 70 ns), supporting switching frequencies up to 500 kHz in regulated DC-DC stages. The device is rated for avalanche energy of 40 mJ (single pulse, I_D = 3 A), confirming ruggedness under inductive load transients.

Thermal performance is defined by a junction-to-case thermal resistance of 50 °C/W and maximum junction temperature of 150 °C. Gate charge is specified at 8.5 nC (V_GS = 10 V), directly influencing driver IC selection and gate drive loss in high-frequency operation.

Key Specifications

Pinout & Package

2SK852-T2-A is housed in a surface-mount TO-236AB (SC-59) package with three terminals: Drain (D), Gate (G), and Source (S). The package measures 2.9 mm × 1.3 mm × 0.9 mm and features gull-wing leads compatible with standard reflow soldering profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with RUM002N05 and NTMFS4C09NT1G, the 2SK852-T2-A uniquely balances logic-level drivability, proven avalanche ruggedness, and TO-236AB footprint - making it the preferred choice for industrial DC-DC and motor control where reliability and layout density are both essential.

Availability

2SK852-T2-A is available at Aetrix Electronics and suitable for DC-DC converters, small BLDC motor drives, and industrial solenoid control requiring stable component supply across production lifecycles.

Supply support for 2SK852-T2-A 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 connectivity solutions for industrial, automotive, and infrastructure markets.

The 2SK852-T2-A belongs to Renesas' legacy discrete power MOSFET family, engineered specifically for reliable, cost-effective switching in consumer and industrial power conversion - emphasizing ruggedness, logic-level compatibility, and standardized SMD packaging.

FAQ

What is the maximum gate-source voltage rating for the 2SK852-T2-A?

The 2SK852-T2-A has a maximum gate-source voltage (V_GS) rating of ±20 V. Exceeding this limit risks permanent gate oxide damage. In practice, gate drive should be clamped to ≤15 V for long-term reliability, especially in noisy industrial environments where ringing may cause overshoot. The 2SK852-T2-A's 1.0–2.5 V V_GS(th) range ensures compatibility with standard 3.3 V and 5 V logic, but gate protection remains essential.

Is the 2SK852-T2-A suitable for use in automotive applications?

The 2SK852-T2-A is classified as a "Standard" quality grade device per Renesas' quality grading system and is not qualified to AEC-Q101. It is approved for use in computers, office equipment, and industrial robots - but not for automotive powertrain or safety-critical systems. For automotive-grade alternatives, consult Renesas' AEC-Q101-qualified power MOSFET portfolio; the 2SK852-T2-A remains appropriate for non-automotive industrial and consumer applications.

Does the 2SK852-T2-A require a gate resistor in series with the driver?

Yes - a gate resistor (typically 10–47 Ω) is recommended to dampen gate ringing and control dV/dt during switching. While the 2SK852-T2-A's 8.5 nC gate charge permits fast transitions, uncontrolled ringing can cause false triggering or EMI. The resistor value must balance switching speed against noise immunity; values outside 5–100 Ω risk either excessive switching loss or instability. This applies regardless of whether the 2SK852-T2-A is used in buck converters or motor drivers.

What is the thermal resistance from junction to ambient for the 2SK852-T2-A?

Renesas does not specify a guaranteed R_θJA for the 2SK852-T2-A because it depends heavily on PCB layout - copper area, layer count, and airflow. The datasheet provides only R_θJC = 50 °C/W (junction-to-case). For thermal design, assume R_θJA ≈ 200–300 °C/W on a 1 cm² 1-oz copper pad; derate I_D accordingly. Always verify junction temperature using IR thermography or thermal simulation when deploying the 2SK852-T2-A in enclosed or high-ambient environments.

Can the 2SK852-T2-A replace the 2SK852-T2 in a design?

Yes - the 2SK852-T2-A is the updated marking for the same device formerly labeled 2SK852-T2. The "-A" suffix reflects Renesas' post-merger part numbering convention introduced after April 2010, with no electrical, mechanical, or reliability changes. Pinout, specifications, and packaging are identical; the 2SK852-T2-A may be used as a direct replacement without layout or firmware modifications.