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

Nexperia USA Inc. BCW89-QR

Name: BCW89-QR
Brand: Nexperia USA Inc.
SKU: BCW89-QR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCW89-QR

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BCW89-QR.pdf

Description:: TRANS PNP 60V 0.1A TO-236AB

Quantity:: RFQ Add To RFQ list

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Inventory:3,000

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Product details

Overview

BCW89-QR from Nexperia is a PNP bipolar junction transistor in SOT23 package, rated for −60 V V_CEO, −100 mA I_C, and AEC-Q101 qualified for automotive use. It delivers DC current gain (h_FE) of 90–260 at −5 V V_CE, with V_CE(sat) as low as −150 mV at −50 mA/−2.5 mA drive, enabling compact low-power switching in space-constrained PCBs.

For engineers reviewing the BCW89-QR datasheet, BCW89-QR pinout, BCW89-QR application, or BCW89-QR equivalent, this page provides verified pin mapping, thermal derating data, automotive qualification status, saturation voltage behavior across temperature, and direct alternatives with documented parametric divergence.

Technical Context

The BCW89-QR operates as a general-purpose PNP switch or small-signal amplifier with open-base collector-emitter breakdown of −60 V and peak collector current capability of −200 mA. Its h_FE varies from 120–260 at −2 mA to 90–260 at −10 µA, supporting both linear amplification and saturated switching modes.

Thermal resistance R_th(j-a) is 500 K/W on FR4 PCB with standard footprint, and power dissipation is derated linearly above 25 °C ambient, reaching zero at 150 °C. Cut-off leakage (I_CBO) remains ≤ −10 µA at 100 °C junction temperature, ensuring stable off-state integrity in automotive environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−60 V: Maximum safe collector-emitter voltage with base open; defines maximum supply rail compatibility in PNP high-side switch configurations.
I_C	−100 mA continuous: Rated collector current for sustained operation; supports LED drivers, relay coils, and logic-level interface loads.
h_FE	90–260 at 25 °C: DC current gain range enables predictable base drive sizing for saturation or linear biasing without iterative tuning.
V_CE(sat)	−150 mV @ −50 mA/−2.5 mA: Low saturation voltage minimizes conduction loss and self-heating in battery-powered or thermally constrained designs.
P_tot	250 mW @ T_amb ≤ 25 °C: Total power dissipation limit on standard FR4 PCB; requires thermal derating above ambient 25 °C per published curve.
T_j(max)	150 °C: Maximum junction temperature; combined with AEC-Q101 qualification, confirms suitability for under-hood automotive modules.

Pinout & Package

SOT23 plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body; optimized for reflow and wave soldering per Nexperia footprints (Fig. 8 & 9).

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control terminal for forward-biased PNP operation; requires negative base current relative to emitter to turn on device.
2	Emitter (E)	Current source terminal in PNP configuration; connected to higher potential rail in high-side switch applications.
3	Collector (C)	Current sink terminal; output node where load connects to ground or lower-potential return path.

Key Features

Feature	Design Value
AEC-Q101 qualified	Stress-tested per Automotive Electronics Council standard for discrete semiconductors; validated for use in engine control, lighting, and body electronics.
Low V_CE(sat)	−150 mV at −50 mA ensures <15 mW conduction loss, reducing thermal load in densely packed PCBs and extending battery life in portable systems.
Wide h_FE range	90–260 supports consistent switching performance across production lots and temperature extremes (−55 °C to +150 °C).
FR4-optimized thermal design	R_th(j-a) = 500 K/W on single-sided tin-plated FR4 enables reliable operation without heatsinking in consumer and industrial control boards.

Applications

Automotive Interior Lighting

Industrial Sensor Interface

Use Scenario: Driving white LED strings in door handle illumination and map lights using 12 V battery supply.

IC Role / Device Role / Timing Role: PNP high-side switch controlling current flow from battery to LED anode; base driven by microcontroller GPIO through current-limiting resistor.

Use Value: −150 mV V_CE(sat) limits power loss to <7.5 mW at 50 mA, preventing thermal runaway in sealed plastic housings.

Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., NTC thermistors) into ADC inputs of PLC I/O modules.

IC Role / Device Role / Timing Role: Small-signal PNP amplifier configured in common-emitter mode to invert and scale weak voltage signals before digitization.

Use Value: h_FE ≥ 90 at −10 µA ensures stable gain across temperature, minimizing calibration drift in unheated factory-floor enclosures.

Consumer Appliance Control

Medical Diagnostic Equipment

Use Scenario: Enabling/disabling solenoid valves in washing machine detergent dispensers via MCU-controlled switching.

IC Role / Device Role / Timing Role: General-purpose PNP switch turning on 24 V solenoid coil with flyback diode protection.

Use Value: −60 V V_CEO accommodates 24 V supply with margin for inductive kickback, eliminating need for external clamping components.

Use Scenario: Isolating patient-connected analog front-end circuits from digital processing stages in portable ECG monitors.

IC Role / Device Role / Timing Role: Signal conditioning stage providing galvanic separation and noise rejection between biopotential sensors and ADC driver.

Use Value: I_CBO ≤ −10 µA at 100 °C ensures minimal leakage-induced offset drift during extended clinical sessions.

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
BC807-40-QR	Higher h_FE (250–630), same V_CEO/I_C, identical SOT23 package	Better suited for low-base-drive applications (e.g., microcontroller GPIO directly driving base without resistor scaling)	Select when higher current gain reduces base drive burden but thermal budget remains unchanged.
MMBT3906LT1G	Lower V_CEO (−40 V), same I_C, non-AEC-Q101 qualified	Limited to 12 V or 24 V systems without transients; unsuitable for automotive under-hood deployment	Choose only for cost-sensitive consumer products where AEC-Q101 compliance is not required.

Compared with BCW89-QR, BC807-40-QR offers higher gain for reduced base current demand while maintaining identical voltage/current ratings and automotive qualification; MMBT3906LT1G trades qualification and voltage margin for lower unit cost in non-automotive contexts.

Availability

BCW89-QR is available at Aetrix Electronics and suitable for automotive interior lighting, industrial sensor interfaces, consumer appliance control, and medical diagnostic equipment requiring stable component supply with AEC-Q101 assurance and SOT23 footprint compatibility.

Supply support for BCW89-QR 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 semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.

The BCW89-QR belongs to Nexperia's AEC-Q101-qualified general-purpose transistor product line, engineered for robustness in harsh environments and designed to replace legacy through-hole transistors in space-constrained surface-mount applications.

FAQ

Is BCW89-QR pin-compatible with BC857 or BC807 series?

No - BCW89-QR uses SOT23 pinout (1=B, 2=E, 3=C), while BC857 and BC807 share the same pinout but differ in gain distribution and qualification. BC807-40-QR is pin-identical and AEC-Q101 qualified, making it a direct functional upgrade; BC857 variants lack automotive qualification and exhibit different h_FE ranges.

What is the maximum allowable PCB temperature rise when operating BCW89-QR at 100 mA?

At −100 mA I_C and −5 V V_CE, power dissipation is ~500 mW - exceeding the 250 mW rating. Therefore, BCW89-QR must be operated below its absolute max ratings: continuous I_C is limited to −100 mA only if V_CE ≤ −2.5 V, or derated further per the 500 K/W thermal resistance curve to maintain T_j ≤ 150 °C.

Does BCW89-QR support PWM switching at frequencies above 10 kHz?

Yes - with f_T = 150 MHz and typical C_c = 4.5 pF, BCW89-QR supports clean switching up to at least 100 kHz in saturated mode. However, due to minority-carrier storage time, full turn-off delay increases above 10 kHz unless base is actively pulled low; add a base-emitter resistor (≤10 kΩ) for reliable high-frequency PWM.

Can BCW89-QR be used in linear regulator pass-transistor roles?

No - BCW89-QR lacks guaranteed Safe Operating Area (SOA) data for linear regulation and exhibits significant V_BE drift (−600 to −750 mV) with temperature and current. Its design intent is switching and small-signal amplification; use dedicated LDOs or regulators with integrated pass elements for stable voltage regulation.

BCW89-QR 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):: 60 V

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

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

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

Power - Max:: 250 mW

Frequency - Transition:: 150MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BCW89-QR FAQ

1.How can I place an order for BCW89-QR through Aetrix?

Please submit a Request for Quotation (RFQ) for BCW89-QR 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 BCW89-QR reliable?

The price and inventory of BCW89-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCW89-QR is usually 5 days.

3.What payment methods are accepted for BCW89-QR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCW89-QR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCW89-QR?

BCW89-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCW89-QR 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 BCW89-QR?

For technical support, including BCW89-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCW89-QR requirements.

6.How does Aetrix verify that BCW89-QR is sourced from the original manufacturer or authorized distributors?

All BCW89-QR 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 BCW89-QR meets industry standards.

7.What is the process for return or replacement of BCW89-QR?

All BCW89-QR units undergo pre-shipment inspection (PSI). If there is an issue with BCW89-QR, 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 BCW89-QR part is unused and in its original packaging.

Return procedure for BCW89-QR:

1.Submit a request within 90 days.

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

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