Infineon Technologies BCV48H6327XTSA1

Overview

BCV48H6327XTSA1 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 100 mA/0.1 mA drive, enabling high-efficiency switching in automotive body control modules.

For engineers reviewing the BCV48H6327XTSA1 datasheet, BCV48H6327XTSA1 pinout, BCV48H6327XTSA1 application, or BCV48H6327XTSA1 equivalent, key selection criteria include its AEC-Q101 qualification, complementary pairing with BCV49, thermal resistance R_thJS ≤ 20 K/W, and operation up to 150 °C junction temperature.

Technical Context

This Darlington pair integrates two cascaded PNP transistors on a single die to achieve ultra-high current gain while maintaining robust voltage ratings. Its structure supports low-base-drive applications where microcontroller GPIOs directly switch moderate loads without external driver stages.

The device operates with V_CB = 60 V and V_EB = 10 V limits, exhibits f_T = 200 MHz at I_C = 50 mA, and maintains C_cb = 4.5 pF at V_CB = 10 V - characteristics critical for stable switching in 12 V automotive subsystems with EMI constraints.

Key Specifications

Pinout & Package

SOT-89 package: 3-pin surface-mount plastic case with exposed emitter pad for thermal enhancement and mechanical stability. Pin 1 = Base, Pin 2 = Collector, Pin 3 = Emitter - standard configuration per Infineon marking layout (ED/EE).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCV49H6327XTSA1, this part provides matched performance in complementary circuits; compared with ZTX951, it trades voltage headroom for automotive qualification, thermal efficiency, and higher current gain in compact SOT-89 form.

Availability

BCV48H6327XTSA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial relay drivers, LED lighting control, and power supply enable circuits requiring stable component supply and long-term production continuity.

Supply support for BCV48H6327XTSA1 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.

BCV48 belongs to Infineon's BCV-series of AEC-Q101-qualified bipolar transistors designed specifically for cost-sensitive, thermally constrained automotive body electronics applications.

FAQ

Is BCV48H6327XTSA1 pin-compatible with BCV28H6327XTSA1?

Yes - both use identical SOT-89 package and pinout (Pin 1 = Base, Pin 2 = Collector, Pin 3 = Emitter). However, BCV48 has higher voltage ratings (60 V V_CEO vs. 30 V) and lower minimum h_FE (2000 vs. 4000), so substitution requires verification of voltage stress and gain margin in the target circuit.

What is the maximum allowable PCB copper area for thermal relief with BCV48H6327XTSA1?

No fixed minimum copper area is specified, but R_thJS ≤ 20 K/W assumes direct thermal coupling from the exposed emitter pad to ≥1 cm² of 2 oz copper. For 1 W continuous dissipation at 130 °C case temperature, ≥2 cm² is recommended to maintain T_j ≤ 150 °C in still air.

Does BCV48H6327XTSA1 support PWM switching above 20 kHz?

Yes - with f_T = 200 MHz and typical V_CE(sat) settling time <1 µs, it supports clean PWM switching up to at least 50 kHz. However, switching losses increase above 10 kHz due to stored charge; gate/base drive optimization is advised for >20 kHz operation.

Can BCV48H6327XTSA1 replace a standard BJT like BC807 in existing designs?

Only with circuit redesign - BCV48's Darlington structure doubles V_BE(sat) (~1.5 V vs. ~0.7 V) and increases storage time. Direct replacement risks excessive base drive current and slower turn-off; it is suitable only where high h_FE justifies the trade-offs, not as a drop-in substitute.