Infineon Technologies BSP88E6327

Overview

BSP88E6327 from Infineon Technologies is an N-channel enhancement-mode logic-level SIPMOS small-signal transistor in SOT-223 package, rated for 240 V V_DS, 0.32 A continuous drain current, and 8 Ω R_DS(on) at V_GS = 4.5 V. It serves as a low-power switching element in high-voltage auxiliary power supplies, LED driver bias circuits, and industrial sensor interface protection stages.

For engineers reviewing the BSP88E6327 datasheet, BSP88E6327 pinout, BSP88E6327 application, or BSP88E6327 equivalent, key selection criteria include its 0.6–1.2 V gate threshold voltage, 1.7 W thermal dissipation capability at 25 °C, and integrated body diode with 1.05–1.3 V forward drop at 0.5 A - critical for flyback snubber and reverse polarity protection designs.

Technical Context

This device operates in enhancement mode with logic-compatible gate drive (V_GS(th) ≤ 1.2 V), enabling direct interfacing with 3.3 V and 5 V microcontroller GPIOs without level-shifting. Its R_DS(on) remains stable up to 150 °C junction temperature, supported by low thermal resistance (R_thJA ≤ 72 K/W) on standard epoxy PCB layouts.

The integrated body diode exhibits 0.32 A continuous forward current rating and 1.28 A pulsed capability, with reverse recovery characteristics optimized for non-synchronous flyback and capacitive load switching. Dynamic parameters - including 5–8 ns turn-on delay and 25–35 ns fall time under 50 Ω gate drive - confirm suitability for sub-MHz switching applications.

Key Specifications

Pinout & Package

SOT-223 package with exposed drain tab for thermal and electrical connection; standardized 4-pin layout where Pin 1 = Gate, Pin 2 = Drain, Pin 3 = Source, Pin 4 = Drain (dual-drain configuration).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BSP78E6327 and IPN70R1K4P7SAUMA1, the BSP88E6327 uniquely balances 240 V capability, logic-level compatibility, and SOT-223 thermal performance - making it optimal for space-constrained, high-voltage auxiliary switching where gate drive simplicity and voltage margin are critical.

Availability

BSP88E6327 is available at Aetrix Electronics and suitable for industrial sensor interfaces, LED driver bias control, and offline auxiliary power supplies requiring stable component supply and long-term manufacturability.

Supply support for BSP88E6327 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 and discrete devices.

The BSP88 belongs to Infineon's SIPMOS small-signal transistor family, designed specifically for high-voltage, low-current switching in auxiliary power, protection, and interface circuits where logic-level drive and thermal efficiency are essential.

FAQ

Is BSP88E6327 suitable for 24 V automotive applications?

No - while rated for 240 V, its maximum continuous drain current is only 0.32 A at 25 °C, and derating begins sharply above 60 °C ambient. Automotive 24 V loads (e.g., solenoids, fans) typically require ≥1 A sustained current and AEC-Q101 qualification, which this part lacks.

Can BSP88E6327 replace BS170 in existing designs?

Only with verification: BSP88E6327 has higher V_DS (240 V vs. 60 V) and higher R_DS(on) (8 Ω vs. ~5 Ω), but identical SOT-223 footprint and logic-level gate. It improves voltage margin but increases conduction loss - redesign of gate drive and thermal layout may be needed.

What is the maximum safe operating frequency for BSP88E6327?

Based on published dynamic parameters (t_d(on) ≤ 8 ns, t_f ≤ 35 ns), the device supports reliable switching up to ~500 kHz in non-resonant topologies. Above this, gate drive strength and PCB layout parasitics dominate losses - actual limit depends on gate resistor value and load inductance.

Does BSP88E6327 have avalanche rating?

No - the datasheet does not specify single-pulse or repetitive avalanche energy ratings (E_AS). It is not characterized for unclamped inductive switching and must be used with external snubbers or clamps in flyback or relay-driving applications to avoid failure.