Infineon Technologies BCX52H6327XTSA1

Overview

BCX52H6327XTSA1 from Infineon Technologies is a PNP silicon bipolar junction transistor designed for audio-frequency driver and output stages in linear and switching applications. It features V_CEO = 60 V, I_C = 1 A continuous collector current, V_CE(sat) ≤ 0.5 V at I_C = 500 mA / I_B = 50 mA, h_FE = 40–100 at I_C = 150 mA, and SOT-89 surface-mount package with thermal resistance R_thJS ≤ 15 K/W - used in automotive door module power stages and industrial relay drivers.

For engineers reviewing the BCX52H6327XTSA1 datasheet, BCX52H6327XTSA1 pinout, BCX52H6327XTSA1 application, or BCX52H6327XTSA1 equivalent, key selection criteria include guaranteed V_CEO rating, low saturation voltage under high-current switching, DC current gain consistency across temperature, and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This PNP BJT operates in active, saturation, and cutoff regions with defined breakdown limits (V_CEO = 60 V, V_CBO = 60 V, V_EBO = 5 V) and supports pulse operation up to I_CM = 1.5 A (t_p ≤ 10 ms). Its f_T = 125 MHz enables stable performance in AF amplification and fast-switching loads.

Thermal design is enabled by R_thJS ≤ 15 K/W and P_tot = 2 W at T_S ≤ 120 °C, with derating curves provided for ambient and case temperature variations. The device is qualified per AEC-Q101 and RoHS-compliant with lead-free SOT-89 packaging.

Key Specifications

Pinout & Package

SOT-89 package: 3-pin surface-mount plastic package with exposed emitter pad for thermal enhancement and mechanical stability. Pin 1 = Base, Pin 2 = Collector, Pin 3 = Emitter (standard BCX series configuration).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP general-purpose transistor applications.

Compared with BCX52-16 (identical function, alternate marking) and MMBT5087 (lower voltage/current, no automotive qualification), BCX52H6327XTSA1 delivers verified 60 V/1 A capability with AEC-Q101 validation - essential for automotive and industrial high-reliability switching where thermal margin and long-term stability are critical.

Availability

BCX52H6327XTSA1 is available at Aetrix Electronics and suitable for automotive door modules, industrial relay interfaces, audio amplifier stages, and DC motor speed control requiring stable component supply across production lifecycles.

Supply support for BCX52H6327XTSA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs and discrete devices.

BCX52H6327XTSA1 belongs to the BCX51–BCX53 family of AEC-Q101-qualified PNP transistors engineered for high-current, low-saturation-voltage switching in automotive body electronics and industrial power interfaces.

FAQ

Is BCX52H6327XTSA1 pin-compatible with BCX52-16?

Yes - both share identical SOT-89 pinout (Base=Pin1, Collector=Pin2, Emitter=Pin3), same die, and identical electrical specifications. The "H6327XTSA1" suffix denotes Infineon's tape-and-reel packaging standard (1,000 pcs/reel, ø180 mm), while "BCX52-16" indicates a different marking variant used in alternate packaging or traceability schemes.

What is the maximum allowable junction temperature during operation?

The absolute maximum junction temperature (T_j) is 150 °C, as specified in the Infineon datasheet. Operation must remain within this limit under all conditions - derating of P_tot is required above T_S = 120 °C, and thermal design must ensure R_thJA keeps T_j ≤ 150 °C at worst-case ambient and power dissipation.

Does BCX52H6327XTSA1 support pulsed current higher than 1 A?

Yes - peak collector current I_CM is rated at 1.5 A for pulse widths ≤ 10 ms with duty cycle D ≤ 2%. This enables short-duration surge handling in relay coil snubbing or motor stall protection, provided thermal mass and PCB layout prevent junction overheating during repeated pulses.

Can BCX52H6327XTSA1 be used in place of an NPN transistor like BCX54?

No - BCX52H6327XTSA1 is a PNP device and cannot substitute for NPN transistors without circuit topology changes. It serves complementary roles: BCX52 switches high-side loads referenced to V_CC, while BCX54 switches low-side loads to ground. Interchanging them would invert logic polarity and likely cause malfunction or damage.