STMicroelectronics STD95N2LH5

Overview

STD95N2LH5 from STMicroelectronics is an N-channel 25 V, 80 A Power MOSFET in DPAK package with R_DS(on) ≤ 0.0045 Ω at V_GS = 10 V and 40 A, optimized for high-efficiency switching in DC-DC converters and motor control stages. Its low gate charge (Q_g = 13.4 nC) and high avalanche energy (E_AS = 165 mJ) support robust hard-switching operation in automotive body electronics.

For engineers reviewing the STD95N2LH5 datasheet, STD95N2LH5 pinout, STD95N2LH5 application, or STD95N2LH5 equivalent, key selection criteria include on-resistance at 5 V gate drive (0.005–0.006 Ω), thermal resistance junction-to-case (2.14 °C/W), safe operating area limits, and DPAK tape-and-reel packaging compatibility with automated SMT assembly.

Technical Context

This STripFET™ V MOSFET uses trench-gate silicon technology to minimize conduction and switching losses simultaneously. Its R_DS(on) × Q_g figure of merit is benchmarked against industry standards for 25 V power switches, enabling high-frequency operation up to 500 kHz in synchronous buck converters.

The device features enhanced avalanche ruggedness (165 mJ single-pulse) and a gate threshold voltage of 1 V (min), supporting logic-level drive from 3.3 V and 5 V microcontrollers. Its source-drain diode exhibits t_rr = 32.4 ns and Q_rr = 27.1 nC under 80 A, 20 V, 100 A/µs conditions - critical for minimizing commutation loss in half-bridge topologies.

Key Specifications

Pinout & Package

DPAK (TO-252) package: surface-mount, 3-terminal, single-die configuration with exposed drain pad for thermal and electrical connection. Standard JEDEC MO-238 outline, compatible with IPC-7351B footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel 25 V power MOSFET applications.

Compared with IRF7470PBF and DMT6006LPS-13, STD95N2LH5 uniquely combines 80 A current rating, 165 mJ avalanche energy, and 0.0045 Ω R_DS(on) in DPAK - making it the only option qualified for high-reliability 24 V industrial motor control without derating or paralleling.

Availability

STD95N2LH5 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, server VRMs, and telecom DC-DC converters requiring stable component supply across multi-year production cycles.

Supply support for STD95N2LH5 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and power applications.

STD95N2LH5 belongs to ST's STripFET™ V Power MOSFET product line, engineered specifically for high-current, high-efficiency switching in 12–48 V systems where low R_DS(on), fast switching, and avalanche robustness are co-critical.

FAQ

Is STD95N2LH5 suitable for 3.3 V logic-level gate drive?

Yes. With a gate threshold voltage (V_GS(th)) of 1.0–2.5 V and guaranteed enhancement at V_GS = 4.5 V, STD95N2LH5 fully turns on using 3.3 V microcontroller outputs. However, R_DS(on) increases to 0.005–0.006 Ω at V_GS = 5 V, so thermal design must account for ~15% higher conduction loss versus 10 V drive.

What is the maximum PCB copper area needed for thermal performance at 80 A?

For continuous 80 A operation at T_C = 25°C, a minimum 200 mm² (20 mm × 10 mm) 2-oz copper pour connected to the exposed drain pad is required. This achieves the specified R_thj-case = 2.14 °C/W and limits junction temperature to 125°C with 70°C ambient rise.

Does STD95N2LH5 require a gate resistor for stability?

Yes. A 4.7 Ω series gate resistor is recommended per the datasheet switching test circuit (Figure 17) to dampen ringing caused by gate-drain capacitance (C_rss = 67 pF) and PCB inductance. Omitting it risks oscillation above 100 MHz and unreliable turn-on/turn-off timing.

Can STD95N2LH5 replace STP95N2LH5 in existing TO-220 designs?

No. STD95N2LH5 is DPAK (surface-mount), while STP95N2LH5 is TO-220 (through-hole). They share identical electrical specs but differ in thermal path, mounting method, and PCB footprint. Direct replacement requires redesigning the layout, thermal pad, and assembly process - not a drop-in swap.