Infineon Technologies BCV48E6327HTSA1

Overview

BCV48E6327HTSA1 from Infineon Technologies is a PNP silicon Darlington transistor in SOT-89 package, rated for 60 V V_CEO, 500 mA continuous collector current, and minimum DC current gain (h_FE) of 2000 at I_C = 10 mA. It delivers low V_CE(sat) ≤ 1 V and V_BE(sat) ≤ 1.5 V under typical drive conditions, enabling efficient high-gain switching in automotive body control modules.

For engineers reviewing the BCV48E6327HTSA1 datasheet, BCV48E6327HTSA1 pinout, BCV48E6327HTSA1 application, or BCV48E6327HTSA1 equivalent, key selection criteria include its AEC-Q101 qualification, high h_FE stability across I_C = 10 µA to 500 mA, thermal resistance R_thJS ≤ 20 K/W, and complementary pairing with BCV49 for push-pull output stages.

Technical Context

This Darlington pair integrates two PNP transistors in cascade to achieve ultra-high current gain while maintaining single-package simplicity. Its structure enables base drive currents as low as 0.1 mA to switch 100 mA loads with guaranteed V_CE(sat) ≤ 1 V, supporting direct microcontroller GPIO interfacing without external amplification.

The device operates across −65 °C to +150 °C junction temperature range and features V_(BR)CBO = 80 V and C_cb = 4.5 pF at 10 V, making it suitable for low-frequency (<200 MHz f_T) switching where capacitance and breakdown margin are critical in automotive load management circuits.

Key Specifications

Pinout & Package

SOT-89 package: 3-pin surface-mount plastic case with exposed thermal pad (pin 2), standardized footprint per Infineon outline drawing (4.5 × 2.5 × 1.5 mm).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP Darlington transistor applications.

Compared with BCV49E6327HTSA1, this part provides polarity-matched functionality in identical packaging, while MJD2955T4G trades miniaturization for raw power handling-making BCV48E6327HTSA1 optimal for compact, high-gain, AEC-Q101-compliant switching where thermal and layout constraints dominate.

Availability

BCV48E6327HTSA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, LED power sequencing, and power supply enable functions requiring stable component supply and AEC-Q101 compliance.

Supply support for BCV48E6327HTSA1 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, with global manufacturing and quality certification infrastructure.

BCV48 belongs to Infineon's BCV-series discrete bipolar transistors, engineered specifically for AEC-Q101-compliant automotive body control units requiring high DC gain, low saturation voltage, and robust thermal performance in SOT-89 form factor.

FAQ

Is BCV48E6327HTSA1 pin-compatible with BCV28E6327HTSA1?

Yes-both share identical SOT-89 pinout (Emitter–Collector–Base) and mechanical footprint. However, BCV48 has higher voltage ratings (V_CEO = 60 V vs. 30 V, V_CBO = 80 V vs. 40 V) and lower minimum h_FE (2000 vs. 4000 at I_C = 10 mA), so substitution requires verification of voltage stress and gain margin in the target circuit.

What is the maximum allowable pulsed collector current for BCV48E6327HTSA1?

The datasheet specifies I_CM = 800 mA for pulse width t_p ≤ 10 ms with duty cycle D < 2%. This limit assumes T_S ≤ 130 °C and accounts for thermal inertia; exceeding 800 mA risks secondary breakdown even at short durations unless board-level thermal design reduces R_thJA below 100 K/W.

Does BCV48E6327HTSA1 require a base resistor when driven by a 3.3 V microcontroller GPIO?

No external base resistor is required if the GPIO can source ≤100 µA continuously. At I_B = 0.1 mA (typical for 100 mA load), V_BE(sat) ≈ 1.5 V leaves ~1.8 V across internal series resistance-within safe limits for most 3.3 V IOs. For reliability, a 1 kΩ series resistor is recommended to limit surge current during switching transients.

How does the thermal resistance R_thJS = 20 K/W translate to PCB layout requirements?

R_thJS ≤ 20 K/W means the junction-to-solder-point temperature rise is ≤20 °C per watt dissipated. To maintain T_j ≤ 150 °C at 1 W, the solder point must stay ≤130 °C. Achieve this by connecting pin 2 (collector) to ≥1 cm² of 2 oz copper with ≥4 thermal vias to inner ground planes-per Infineon Application Note AN077.