Infineon Technologies BCP5116H6433XTMA1

Overview

BCP5116H6433XTMA1 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 45 V V_CEO, 1 A continuous collector current, 0.5 V typical V_CE(sat) at I_C = 500 mA / I_B = 50 mA, h_FE = 100–250 (at I_C = 150 mA), and SOT223 surface-mount package with four terminals (B-C-E-C).

For engineers reviewing the BCP5116H6433XTMA1 datasheet, BCP5116H6433XTMA1 pinout, BCP5116H6433XTMA1 application, or BCP5116H6433XTMA1 equivalent, key selection criteria include its complementary NPN pairing (BCP54–BCP56), AEC-Q101 qualification for automotive use, low saturation voltage for efficient power stage operation, and thermal resistance R_thJS ≤ 15 K/W enabling high-power-density designs.

Technical Context

This PNP transistor operates as a medium-power linear amplifier or saturated switch in analog and digital signal paths. Its DC current gain spans 100–250 across I_C = 150–500 mA, and it delivers f_T = 125 MHz at I_C = 50 mA / V_CE = 10 V, supporting stable AF and low-MHz switching performance.

Thermal design is enabled by the SOT223 package's low junction-to-solder-point resistance (≤15 K/W) and rated P_tot = 2 W at T_S ≤ 120 °C. The device meets AEC-Q101 stress testing requirements, confirming suitability for under-hood automotive electronics where reliability under thermal cycling and humidity is critical.

Key Specifications

Pinout & Package

The BCP5116H6433XTMA1 is housed in a standard SOT223 package with four leads: emitter (pin 1), collector (pins 2 and 4), and base (pin 3). The dual-collector configuration improves current handling and thermal spreading.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCP5116H6433XTMA1, BCP51-16 offers identical performance in a different packaging format, while MJD2955G trades SMT convenience for higher voltage tolerance and thermal mass-making the former ideal for volume automotive SMT assembly and the latter better suited for prototyping or high-V_CE legacy replacements.

Availability

BCP5116H6433XTMA1 is available at Aetrix Electronics and suitable for automotive door modules, industrial relay interfaces, audio amplifier stages, and DC-DC pre-regulators requiring stable component supply with AEC-Q101 assurance and SOT223 footprint compatibility.

Supply support for BCP5116H6433XTMA1 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.

The BCP51 series belongs to Infineon's automotive-qualified bipolar transistor product line, engineered specifically for reliable high-current switching and linear amplification in harsh-environment vehicle subsystems.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum rated base current is 100 mA DC, with a peak limit of 200 mA for pulses ≤10 ms. For reliable 500 mA collector switching, a 50 mA base drive is sufficient due to h_FE ≥ 100, minimizing base resistor power loss and ensuring margin against gain degradation at elevated temperatures.

Is BCP5116H6433XTMA1 pin-compatible with other SOT223 PNP transistors?

Yes-it follows the standard SOT223 pinout (E-C-B-C), matching industry conventions for four-terminal PNP devices. However, electrical parameters such as V_CEO, h_FE, and V_CE(sat) differ across manufacturers; direct substitution requires verification of gain linearity, saturation voltage, and thermal derating in the target application.

Does this transistor support pulsed operation beyond its DC ratings?

Yes-peak collector current reaches 1.5 A for pulses ≤10 ms with duty cycle <2%. Thermal limits remain governed by R_thJS ≤15 K/W and junction temperature not exceeding 150 °C; pulse operation must account for cumulative heating across consecutive cycles using the provided R_thJS(t_p) curve.

How does the dual-collector configuration affect PCB layout?

Pins 2 and 4 are internally shorted collectors, allowing either terminal to serve as the main collector connection. Layout best practice is to connect both pins to the same copper pour to maximize current capacity and thermal spreading-this reduces localized heating and improves long-term reliability in high-duty-cycle applications.