Infineon Technologies BCX52E6327HTSA1

Overview

BCX52E6327HTSA1 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 operates up to T_j = 150 °C - used in automotive lighting drivers and industrial relay interface circuits.

For engineers reviewing the BCX52E6327HTSA1 datasheet, BCX52E6327HTSA1 pinout, BCX52E6327HTSA1 application, or BCX52E6327HTSA1 equivalent, key selection criteria include verified DC current gain range at high I_C, low saturation voltage under pulsed load, thermal resistance (R_thJS ≤ 15 K/W), complementary NPN pairing (BCX55), and SOT-89 package suitability for surface-mount power amplification stages.

Technical Context

This PNP BJT operates in active, saturation, and cutoff regions with fixed base-emitter forward bias control. Its design supports linear amplification (h_FE stable ≥40 at I_C = 150 mA) and switching (V_CE(sat) ≤ 0.5 V with forced β = 10), validated across −65 °C to +150 °C junction temperature range.

Thermal performance is defined by R_thJS ≤ 15 K/W (junction-to-soldering point), enabling 2 W total power dissipation at T_S ≤ 120 °C. Pulse operation allows I_CM = 1.5 A for t_p ≤ 10 ms with duty cycle D ≤ 2%, per JEDEC JESD22-A113.

Key Specifications

Pinout & Package

BCX52E6327HTSA1 is housed in a standard SOT-89 plastic surface-mount package with gull-wing leads, optimized for thermal dissipation via exposed emitter pad and PCB copper area. The package measures 4.5 mm × 2.5 mm × 1.5 mm (L × W × H) and supports reflow soldering per IPC/JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP medium-power switching and amplification applications.

Compared with BCX52-16, the E6327HTSA1 offers identical electrical behavior with optimized logistics packaging; versus MMBT5087, it delivers 10× higher current, 20% higher voltage rating, and SOT-89 thermal robustness - making it the sole viable choice for 500 mA+ automotive or industrial switching.

Availability

BCX52E6327HTSA1 is available at Aetrix Electronics and suitable for automotive LED drivers, industrial relay interfaces, audio amplifier output stages, and DC motor control circuits requiring stable component supply, AEC-Q101 qualification, and RoHS-compliant manufacturing.

Supply support for BCX52E6327HTSA1 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.

BCX52E6327HTSA1 belongs to the BCX51–BCX53 family of AEC-Q101-qualified PNP transistors engineered for high-reliability linear and switching applications in automotive and industrial environments where thermal stability and transient tolerance are critical.

FAQ

Is BCX52E6327HTSA1 pin-compatible with BCX52-16?

Yes - both share identical SOT-89 package outline, pin 1 (emitter), pin 2 (collector), pin 3 (base) assignment, and mechanical footprint. Electrical specifications including V_CEO, I_C, h_FE, and V_CE(sat) are fully aligned per Infineon's datasheet revision 2009-11-16. Only packaging (reel size) and top-side marking differ.

What is the maximum allowable base current for continuous operation?

The absolute maximum rated base current is I_B = 100 mA per datasheet Section 2. Base current must be limited externally via series resistor to prevent thermal runaway. For reliable 1 A collector operation with h_FE ≥40, design I_B ≤ 25 mA - ensuring forced β ≈ 40 and staying within safe SOA limits.

Can BCX52E6327HTSA1 replace BCX53 in a 80 V circuit?

No - BCX52E6327HTSA1 has V_CEO = 60 V and V_CBO = 60 V, while BCX53 specifies V_CEO = 80 V and V_CBO = 100 V. Operating BCX52 above 60 V risks avalanche breakdown and permanent damage. Use only in circuits where worst-case V_CE remains ≤54 V (90% of rating) for reliability.

Does this part support pulse operation beyond its DC ratings?

Yes - the datasheet specifies I_CM = 1.5 A for pulse width t_p ≤ 10 ms and duty cycle D ≤ 2%. This allows short-duration peak loads such as relay coil inrush or motor stall current, provided average power stays within P_tot = 2 W derated by R_thJS and board copper area.