Infineon Technologies BCV29H6327XTSA1

Overview

BCV29H6327XTSA1 from Infineon Technologies is an NPN silicon Darlington transistor in SOT-89 package, designed for general-purpose audio-frequency switching and amplification. It delivers 500 mA continuous collector current, minimum DC current gain of 4000 at IC = 100 µA, VCE = 1 V, and VCEO = 30 V, enabling high-sensitivity low-level signal control in automotive body electronics and industrial sensor interfaces.

For engineers reviewing the BCV29H6327XTSA1 datasheet, BCV29H6327XTSA1 pinout, BCV29H6327XTSA1 application, or BCV29H6327XTSA1 equivalent, key selection criteria include its Darlington configuration for ultra-high hFE, SOT-89 thermal performance (RthJS ≤ 20 K/W), 1 W power dissipation at TS ≤ 130 °C, and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

The BCV29H6327XTSA1 integrates two cascaded NPN transistors in a monolithic Darlington pair, delivering high current gain with single-base control. Its structure enables low base drive requirements while maintaining VCEO = 30 V and fT = 150 MHz at IC = 50 mA, VCE = 5 V - suitable for medium-speed switching in relay drivers and LED matrix controllers.

Thermal design is supported by its SOT-89 package with direct thermal path to the tab (Pin 2 = Collector), allowing operation up to TJ = 150 °C. The device exhibits VCEsat ≤ 1 V at IC = 100 mA / IB = 0.1 mA and VBEsat ≤ 1.5 V under same conditions, defining its saturation behavior in linear and switching modes.

Key Specifications

Pinout & Package

SOT-89 package with exposed collector tab (Pin 2) for thermal and electrical connection. Molded plastic case, 3-pin surface-mount outline per Infineon standard drawing (Edition 2009-11-16).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCV27H6327XTSA1, the BCV29H6327XTSA1 offers +10 V higher VCEO and +100% minimum hFE - critical for 24 V automotive loads and µA-level MCU drive. Versus MMDT2907A-7-F, it provides NPN polarity, SOT-89 thermal capability, and Darlington gain - making it uniquely suited for high-reliability, medium-power switching where gain and thermal robustness are prioritized.

Availability

BCV29H6327XTSA1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, LED matrix drivers, and power supply enable switches requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BCV29H6327XTSA1 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.

The BCV29 belongs to Infineon's bipolar transistor portfolio targeting AEC-Q101-compliant discrete solutions for automotive body electronics and industrial automation - emphasizing reliability, thermal performance, and ease of integration in space-constrained designs.

FAQ

Is BCV29H6327XTSA1 RoHS compliant and lead-free?

Yes. The BCV29H6327XTSA1 is explicitly marked Pb-free and RoHS compliant per Infineon's 2009 datasheet (Edition 2009-11-16) and meets EU Directive 2011/65/EU. The SOT-89 package uses lead-free terminations and halogen-free molding compound, verified through Infineon's material declarations.

What is the maximum allowable junction temperature and how is it enforced?

The absolute maximum junction temperature (TJ) is 150 °C. This limit is enforced by derating total power dissipation (Ptot) based on soldering point temperature (TS): Ptot = 1 W only when TS ≤ 130 °C, with linear derating to zero at TS = 150 °C, as defined in the Thermal Resistance section (RthJS ≤ 20 K/W).

Can BCV29H6327XTSA1 be used in linear amplifier mode?

Yes, but with strict thermal and bias constraints. Its high hFE and VCEsat characteristics support Class-A or AB operation at low currents (<50 mA), provided VCE is maintained ≥2 V to avoid second breakdown and junction temperature remains ≤150 °C using the specified RthJS and PCB copper area.

Does BCV29H6327XTSA1 have built-in ESD protection?

No. The datasheet does not specify on-chip ESD protection diodes. External protection (e.g., series resistor + TVS on base line) is recommended for handling environments exceeding ±2 kV HBM, especially in automotive assembly or field-replaceable modules where human contact is possible.