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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single, Pre-Biased Bipolar Transistors

Infineon Technologies BCR158WH6327XTSA1

Name: BCR158WH6327XTSA1
Brand: Infineon Technologies
SKU: BCR158WH6327XTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCR158WH6327XTSA1

Manufacturer:: Infineon Technologies

Category:: Single, Pre-Biased Bipolar Transistors

Package:: SC-70, SOT-323

Datasheet:: BCR158WH6327XTSA1.pdf

Description:: TRANS PREBIAS PNP 50V SOT323

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Product details

Overview

BCR158WH6327XTSA1 from Infineon Technologies is a PNP silicon digital transistor with integrated bias resistors (R1 = 2.2 kΩ, R2 = 47 kΩ), designed for switching, inverting, interface, and driver circuits in automotive-grade applications. It features V_CEO = 50 V, I_C = 100 mA, V_CE(sat) ≤ 0.3 V at I_C = 10 mA / I_B = 0.5 mA, and is AEC-Q101 qualified for under-hood control modules.

For engineers reviewing the BCR158WH6327XTSA1 datasheet, BCR158WH6327XTSA1 pinout, BCR158WH6327XTSA1 application, or BCR158WH6327XTSA1 equivalent, key selection criteria include input threshold voltages (V_i(on) = 0.5–1.1 V, V_i(off) = 0.4–0.8 V), thermal resistance (R_thJS ≤ 105 K/W), and SOT323 package compatibility with space-constrained PCB layouts.

Technical Context

This digital transistor integrates two on-chip resistors to enable direct logic-level drive without external base biasing. Its PNP topology supports high-side switching in 3.3 V/5 V microcontroller interfaces, with guaranteed DC current gain (h_FE ≥ 70 at I_C = 5 mA, V_CE = 5 V) across −40 °C to 125 °C.

The device operates with low saturation voltage (V_CE(sat) ≤ 0.3 V) and exhibits stable input characteristics: V_i(on) and V_i(off) remain within specified bounds over temperature, enabling reliable signal inversion in automotive body electronics and LED driver stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	50 V - Maximum collector-emitter voltage before breakdown; enables use in 24 V automotive supply rails with margin.
I_C	100 mA - Continuous collector current rating; supports driving small relays, LEDs, or MOSFET gates.
V_CE(sat)	≤ 0.3 V @ I_C/I_B = 20 - Low saturation loss reduces power dissipation in switching mode.
R1 / R2	2.2 kΩ / 47 kΩ - Integrated bias network simplifies PCB layout and eliminates two external resistors.
R_thJS	≤ 105 K/W - Thermal resistance from junction to soldering point; supports operation up to T_S = 124 °C.
f_T	200 MHz - Transition frequency confirms suitability for fast-switching applications up to ~10 MHz.
AEC-Q101	Qualified - Meets stress test requirements for automotive electronic components including temperature cycling and HTRB.

Pinout & Package

BCR158WH6327XTSA1 is housed in a RoHS-compliant SOT323 (SC-70) plastic surface-mount package, measuring 2.1 mm × 1.25 mm × 0.9 mm, optimized for high-density automotive PCBs.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	E	Emitter terminal of PNP transistor; connects to higher potential rail in high-side switch configuration.
2 (Base)	B	Internally connected to R1 and R2; accepts logic-level input directly from MCU GPIO.
3 (Collector)	C	Collector output node; sinks load current when transistor is active (low-side referenced load).

Key Features

Feature	Design Value
Integrated bias resistors	R1 = 2.2 kΩ, R2 = 47 kΩ - Eliminates need for external base pull-up/pull-down, reducing component count by two.
AEC-Q101 qualification	Qualified per Rev. G - Validated for automotive under-hood environments including thermal shock and humidity testing.
Low V_CE(sat)	≤ 0.3 V @ I_C = 10 mA - Minimizes conduction loss and self-heating in continuous-duty switching.
Wide operating temperature	−40 °C to +150 °C junction - Supports engine control unit (ECU) and lighting module deployment without derating.
SOT323 footprint	Compatible with standard SC-70 reflow profiles - Enables automated assembly and high-volume manufacturing scalability.

Applications

Automotive Door Module

LED Tail Light Driver

Use Scenario: Controlling window lift motors and mirror actuators via 3.3 V MCU outputs.

IC Role / Device Role / Timing Role: High-side digital switch translating logic signals into 12 V load control.

Use Value: Integrated R1/R2 ensures clean turn-on/turn-off without external components, reducing BOM cost and board area.

Use Scenario: Driving segmented LED arrays in rear combination lamps with PWM dimming.

IC Role / Device Role / Timing Role: Current-sinking switch synchronized to MCU PWM output.

Use Value: V_CE(sat) ≤ 0.3 V limits power loss to <10 mW per channel at 20 mA, minimizing thermal rise in sealed lamp housings.

Body Control Unit (BCU)

Industrial Sensor Interface

Use Scenario: Level-shifting and isolation between 5 V sensor inputs and 12 V actuator outputs.

IC Role / Device Role / Timing Role: Inverter and interface buffer with defined input thresholds.

Use Value: V_i(on) = 0.5–1.1 V and V_i(off) = 0.4–0.8 V ensure noise-immune switching in electrically noisy vehicle cabins.

Use Scenario: Isolating microcontroller GPIO from industrial 24 V field sensors.

IC Role / Device Role / Timing Role: Digital input conditioner converting 24 V logic to 3.3 V-compatible levels.

Use Value: Built-in R2 provides internal pull-down, eliminating external resistor while maintaining IEC 61000-4-2 ESD robustness.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BCR158W E6327	SOT23 package; R_thJS ≤ 240 K/W; P_tot = 200 mW at T_S = 102 °C	Lower power density; suited for less thermally constrained layouts	Select when board space allows larger SOT23 and thermal budget permits higher R_thJS.
NSVBC158LT1G	Onsemi variant; identical R1/R2 values; same SOT323 footprint; AEC-Q101 qualified	No functional deviation; fully interchangeable in schematic and layout	Preferred for dual-sourcing; identical electrical and mechanical specs with alternate supply chain.

Compared with BCR158WH6327XTSA1, the BCR158W E6327 offers lower thermal performance but greater mounting flexibility, while NSVBC158LT1G delivers identical functionality with second-source assurance-enabling design continuity without layout revision.

Availability

BCR158WH6327XTSA1 is available at Aetrix Electronics and suitable for automotive door modules, LED lighting drivers, body control units, and industrial sensor interfaces requiring stable component supply and AEC-Q101 compliance.

Supply support for BCR158WH6327XTSA1 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 R&D and manufacturing infrastructure.

BCR158WH6327XTSA1 belongs to Infineon's BCR family of digital transistors, engineered specifically for automotive signal conditioning and load switching where integration, reliability, and qualification are critical.

FAQ

What is the maximum allowable junction temperature for BCR158WH6327XTSA1?

The absolute maximum junction temperature (T_j) is 150 °C, as specified in the Infineon datasheet. Operation beyond this limit risks permanent degradation of the silicon die and integrated resistors. Derating curves show total power dissipation must be reduced linearly above T_S = 124 °C to maintain safe junction temperatures under continuous load.

Can BCR158WH6327XTSA1 replace a discrete PNP transistor plus two external resistors?

Yes-it is functionally designed as a drop-in replacement for a PNP BJT with 2.2 kΩ base-to-V_CC and 47 kΩ base-to-emitter resistors. The internal R1/R2 ratio (0.042–0.052) ensures consistent biasing, eliminating layout errors and solder joint failures associated with discrete resistor placement.

Is BCR158WH6327XTSA1 compatible with lead-free reflow profiles?

Yes-the SOT323 package is RoHS-compliant and rated for standard lead-free reflow profiles with peak temperatures up to 260 °C. The device passes JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), requiring no pre-bake prior to assembly.

Does this part support PWM switching at frequencies above 10 kHz?

Yes-its f_T = 200 MHz and low C_cb = 3 pF allow clean switching at PWM frequencies up to 100 kHz. Measured V_CE(sat) and switching times remain stable across temperature, making it suitable for dimmable LED drivers and motor commutation timing circuits.

BCR158WH6327XTSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: SC-70, SOT-323

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Transistor Type:: PNP - Pre-Biased

Current - Collector (Ic) (Max):: 100 mA

Voltage - Collector Emitter Breakdown (Max):: 50 V

Resistor - Base (R1):: 2.2 kOhms

Resistor - Emitter Base (R2):: 47 kOhms

DC Current Gain (hFE) (Min) @ Ic, Vce:: 70 @ 5mA, 5V

Vce Saturation (Max) @ Ib, Ic:: 300mV @ 500µA, 10mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

Frequency - Transition:: 200 MHz

Power - Max:: 250 mW

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SOT323

BCR158WH6327XTSA1 FAQ

1.How can I place an order for BCR158WH6327XTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BCR158WH6327XTSA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for BCR158WH6327XTSA1 reliable?

The price and inventory of BCR158WH6327XTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCR158WH6327XTSA1 is usually 5 days.

3.What payment methods are accepted for BCR158WH6327XTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCR158WH6327XTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCR158WH6327XTSA1?

BCR158WH6327XTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCR158WH6327XTSA1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for BCR158WH6327XTSA1?

For technical support, including BCR158WH6327XTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCR158WH6327XTSA1 requirements.

6.How does Aetrix verify that BCR158WH6327XTSA1 is sourced from the original manufacturer or authorized distributors?

All BCR158WH6327XTSA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BCR158WH6327XTSA1 meets industry standards.

7.What is the process for return or replacement of BCR158WH6327XTSA1?

All BCR158WH6327XTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BCR158WH6327XTSA1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The BCR158WH6327XTSA1 part is unused and in its original packaging.

Return procedure for BCR158WH6327XTSA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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