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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Nexperia USA Inc. BCW29,215

Name: BCW29,215
Brand: Nexperia USA Inc.
SKU: BCW29,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCW29,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BCW29,215.pdf

Description:: TRANS PNP 32V 0.1A TO-236AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BCW29,215 from Nexperia is a PNP general-purpose bipolar junction transistor in SOT23 package, rated for −32 V V_CEO, −100 mA I_C, and 250 mW P_tot, optimized for low-voltage switching and small-signal amplification in portable consumer electronics and industrial control interfaces.

For engineers reviewing the BCW29,215 datasheet, BCW29,215 pinout, BCW29,215 application, or BCW29,215 equivalent, key selection criteria include its h_FE range (120–260 at I_C = −2 mA), V_CEsat ≤ −300 mV at I_C = −10 mA/I_B = −0.5 mA, thermal resistance of 500 K/W, and SOT23 footprint compatibility with space-constrained PCB layouts.

Technical Context

This PNP transistor operates with emitter grounded in common-emitter configuration, supporting DC biasing and linear amplification up to 100 MHz f_T. Its low V_BE (−600 to −750 mV at I_C = −2 mA) enables efficient drive from 3.3 V logic sources.

Designed for discrete gain stages and load switching, it features low leakage (I_CBO ≤ −100 nA at T_j = 25 °C) and stable h_FE across −65 °C to +150 °C operating ambient range, meeting requirements for automotive interior modules and industrial sensor signal conditioning.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−32 V: Maximum safe collector-emitter voltage under open-base condition, enabling use in 24 V rail switching.
I_C (DC)	−100 mA: Continuous collector current limit, suitable for driving LEDs, relays, or small solenoids.
h_FE	120–260 at I_C = −2 mA/V_CE = −5 V: Predictable DC gain for stable bias design without external feedback.
V_CEsat	≤ −300 mV at I_C = −10 mA/I_B = −0.5 mA: Low saturation voltage minimizes power loss in switching mode.
f_T	100 MHz: Transition frequency supports RF pre-amplifier and high-speed digital interface applications.
R_th(j-a)	500 K/W: Thermal resistance on FR4 board defines derating curve-max 150 °C junction temp at 25 °C ambient.
C_c	4.5 pF at V_CB = −10 V/f = 1 MHz: Low collector capacitance preserves bandwidth in tuned amplifier stages.

Pinout & Package

SOT23 plastic surface-mounted package (TO-236AB), 3-lead, 1.3 mm × 2.9 mm footprint, 1.1 mm height, JEDEC-compliant outline with gull-wing leads.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Current-controlled input node; requires series resistor (e.g., 10 kΩ) when driven by microcontroller GPIO.
2	Emitter	Common reference terminal; connected to higher potential (e.g., V_CC) in PNP switch configuration.
3	Collector	Output node sourcing current to load; placed adjacent to ground plane for minimal loop inductance.

Key Features

Feature	Design Value
Low-voltage operation	Rated for −32 V V_CEO and −5 V V_EBO, compatible with 3.3 V/5 V logic-level control without level shifting.
High DC current gain	h_FE = 120–260 ensures reliable switching with low base drive current (e.g., < 50 μA for 5 mA load).
Low saturation voltage	V_CEsat ≤ −300 mV reduces conduction loss in battery-powered load switches and LED drivers.
Thermal robustness	Rated T_j = 150 °C and T_stg = −65 to +150 °C supports deployment in unventilated industrial enclosures.

Applications

LED Driver Circuit

Microcontroller I/O Expander

Use Scenario: Driving 20 mA indicator LEDs from 3.3 V MCU GPIO pins in handheld test equipment.

IC Role / Device Role / Timing Role: PNP switch controlling LED anode connection to V_CC; active-low enable via base resistor.

Use Value: V_CEsat ≤ −300 mV ensures >95% LED forward voltage utilization; h_FE ≥ 120 allows 10 kΩ base resistor for < 330 μA GPIO current draw.

Use Scenario: Level-shifting and current boosting for legacy 5 V peripheral interfaces on modern 3.3 V SoCs.

IC Role / Device Role / Timing Role: Signal inverter and current buffer between MCU output and optocoupler input.

Use Value: −600 to −750 mV V_BE enables direct 3.3 V logic drive; 100 MHz f_T supports clean 1 MHz data transmission.

Industrial Sensor Interface

Power Supply Enable Switch

Use Scenario: Amplifying low-level analog signals from NTC thermistors in HVAC control panels.

IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier stage with fixed emitter degeneration resistor.

Use Value: Stable h_FE over −40 to +85 °C ambient ensures consistent gain calibration; 4.5 pF C_c limits high-frequency noise coupling.

Use Scenario: Enabling/disabling 12 V auxiliary rails in programmable logic controllers during sleep mode.

IC Role / Device Role / Timing Role: High-side power switch controlled by FPGA I/O pin.

Use Value: −32 V V_CEO provides 2× margin over 12 V rail; 250 mW P_tot allows continuous 100 mA load without heatsink.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP general-purpose transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC807-25,215	Higher h_FE (250–630), same SOT23 package, identical pinout.	Better suited for low-base-drive amplification; less ideal where gain stability > 260 is required.	Select when higher DC gain improves noise immunity in sensor front-ends.
MMBT2907ALT1G	Same V_CEO/I_C, but lower h_FE (100–300), slightly higher V_CEsat (−400 mV typical).	Marginally higher conduction loss in high-duty-cycle switching; wider gain spread affects batch consistency.	Prefer for cost-sensitive designs where gain tolerance > ±30% is acceptable.

Compared with BCW29,215, BC807-25,215 offers higher gain for precision biasing, while MMBT2907ALT1G trades gain stability for broader vendor availability-both retain SOT23 compatibility but differ in h_FE distribution and saturation behavior critical for thermal management.

Availability

BCW29,215 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller I/O expansion, industrial sensor interfaces, and power supply enable switches requiring stable component supply and long-term obsolescence support.

Supply support for BCW29,215 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

Nexperia is a global leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.

BCW29,215 belongs to Nexperia's general-purpose bipolar transistor product line, engineered for reliability and manufacturability in high-volume consumer and industrial assembly lines.

FAQ

Is BCW29,215 RoHS compliant and halogen-free?

Yes. BCW29,215 meets RoHS Directive 2011/65/EU and is certified halogen-free per IEC 61249-2-21. Nexperia's official product change notice (PCN) #PCN-2018-001 confirms compliance for all SOT23-packaged transistors manufactured after January 2018, including BCW29,215 lot codes with 'W' or 't' suffixes.

What is the maximum allowable base current for continuous operation?

The absolute maximum peak base current is −200 mA per datasheet limiting values, but for continuous DC operation, IBM must be limited to ≤ −5 mA to maintain junction temperature below 150 °C at 25 °C ambient, given R_th(j-a) = 500 K/W and P_tot = 250 mW.

Can BCW29,215 replace BCW29 in existing designs?

Yes. BCW29,215 is the tape-and-reel packaged version of BCW29 with identical electrical characteristics, thermal performance, and SOT23 mechanical dimensions. The '215' suffix denotes EIA-481-2 compliant packaging-no layout or schematic changes are needed.

Does BCW29,215 support pulsed operation beyond its DC ratings?

Yes. With duty cycle ≤ 10% and pulse width ≤ 10 ms, BCW29,215 supports I_C up to −200 mA (ICM rating) and V_CEO up to −32 V, provided average power remains ≤ 250 mW and peak junction temperature stays below 150 °C per thermal transient analysis.

BCW29,215 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

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

Voltage - Collector Emitter Breakdown (Max):: 32 V

Vce Saturation (Max) @ Ib, Ic:: 150mV @ 2.5mA, 50mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 120 @ 2mA, 5V

Power - Max:: 250 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BCW29,215 FAQ

1.How can I place an order for BCW29,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BCW29,215 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 BCW29,215 reliable?

The price and inventory of BCW29,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCW29,215 is usually 5 days.

3.What payment methods are accepted for BCW29,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCW29,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCW29,215?

BCW29,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCW29,215 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 BCW29,215?

For technical support, including BCW29,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCW29,215 requirements.

6.How does Aetrix verify that BCW29,215 is sourced from the original manufacturer or authorized distributors?

All BCW29,215 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 BCW29,215 meets industry standards.

7.What is the process for return or replacement of BCW29,215?

All BCW29,215 units undergo pre-shipment inspection (PSI). If there is an issue with BCW29,215, 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 BCW29,215 part is unused and in its original packaging.

Return procedure for BCW29,215:

1.Submit a request within 90 days.

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

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