Infineon Technologies BSL372SNH6327XTSA1

Overview

BSL372SNH6327XTSA1 from Infineon Technologies is an N-channel enhancement-mode logic-level MOSFET in TSOP-6 package, rated for 100 V V_DS, 2 A continuous drain current, and 0.22 Ω R_DS(on) at V_GS = 10 V. It is AEC-Q101 qualified, avalanche-rated, and optimized for industrial DC-DC converters and automotive body control modules requiring robust switching under 4.5 V gate drive.

For engineers reviewing the BSL372SNH6327XTSA1 datasheet, BSL372SNH6327XTSA1 pinout, BSL372SNH6327XTSA1 application, or BSL372SNH6327XTSA1 equivalent, key selection criteria include its 4.5 V logic-level gate threshold, 33 mJ single-pulse avalanche energy, 6 kV/µs di/dt ruggedness, and TSOP-6 thermal resistance of 62.5 K/W with 6 cm² copper area.

Technical Context

This OptiMOS™ small-signal transistor uses trench-based silicon technology to achieve low R_DS(on) and fast switching with controlled gate charge (Q_g = 9.5–14.3 nC). Its V_GS(th) range (0.8–1.8 V) ensures reliable turn-on at 4.5 V while maintaining noise immunity.

The integrated body diode supports synchronous rectification and flyback operation, with t_rr = 41–62 ns and Q_rr = 47–71 nC at I_F = 2 A. Thermal design leverages the TSOP-6's 50 K/W R_thJS and 62.5 K/W R_thJA (6 cm² copper), enabling stable operation up to T_j = 150 °C.

Key Specifications

Pinout & Package

BSL372SNH6327XTSA1 is housed in a PG-TSOP6 (TSOP-6) surface-mount package with exposed drain pad for thermal performance. Pin numbering follows standard TSOP-6 orientation (viewed top-side, notch left).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IPB120N10N3 G and BSC0902NS, BSL372SNH6327XTSA1 offers optimal balance of logic-level drive, AEC-Q101 compliance, and TSOP-6 thermal performance for space-constrained industrial and automotive auxiliary loads - neither alternative matches its combination of qualification, package size, and 4.5 V gate compatibility.

Availability

BSL372SNH6327XTSA1 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, motor gate drivers, and smart sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BSL372SNH6327XTSA1 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.

The OptiMOS™ small-signal transistor product line targets high-efficiency, space-constrained switching applications in automotive, industrial, and consumer power systems - emphasizing logic-level drive, ruggedness, and thermal reliability in compact packages.

FAQ

What is the maximum junction temperature and how does it affect continuous current rating?

The BSL372SNH6327XTSA1 has a maximum junction temperature of 150 °C. At ambient temperatures above 70 °C, the continuous drain current derates linearly to 1.6 A due to thermal resistance limits (R_thJA = 62.5 K/W with 6 cm² copper). This ensures safe operation in sealed enclosures without active cooling.

Is this MOSFET suitable for use in a high-side switch configuration with bootstrap gate driving?

Yes - its 100 V V_DS rating, 2.3 V gate plateau voltage, and 4.5 V logic-level threshold make it compatible with standard bootstrap gate drivers (e.g., IR2104, IRS2007) in half-bridge topologies operating up to 48 V bus voltage.

How does the avalanche rating impact circuit protection requirements?

The 33 mJ single-pulse avalanche energy rating allows the device to absorb inductive energy without external clamping in typical relay and solenoid driver applications. This eliminates the need for discrete TVS diodes in many automotive body control designs, reducing BOM count and PCB area.

What is the significance of the "H6327" marking in the part number?

H6327 indicates the tape-and-reel packaging format: 3000 pieces per reel, non-dry pack, and halogen-free compliance per IEC61249-2-21. It does not denote a revision or functional variant - the electrical and thermal specifications match the BSL372SN base part.