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

Nexperia USA Inc. BCW32,235

Name: BCW32,235
Brand: Nexperia USA Inc.
SKU: BCW32,235
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCW32,235

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BCW32,235.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:10,000

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Product details

Overview

BCW32,235 from Nexperia is an NPN general-purpose bipolar junction transistor in SOT23 package, rated for 32 V V_CEO, 100 mA I_C, and 250 mW P_tot, with DC current gain (h_FE) of 200–450 at I_C = 2 mA, used in low-power switching and signal amplification circuits in consumer and industrial control modules.

For engineers reviewing the BCW32,235 datasheet, BCW32,235 pinout, BCW32,235 application, or BCW32,235 equivalent, key selection factors include its V_CEO/I_C rating, h_FE range at defined bias points, thermal resistance (500 K/W), saturation voltage performance, and SOT23 footprint compatibility with space-constrained PCB layouts.

Technical Context

The BCW32 operates as a low-voltage, low-current NPN BJT optimized for linear amplification and digital switching in ambient temperatures up to +150 °C. Its h_FE is specified across two test conditions - 10 μA and 2 mA collector current - enabling predictable gain behavior in both micro-power biasing and moderate-drive applications.

With V_CEsat ≤ 250 mV at I_C = 10 mA/I_B = 0.5 mA and ≤ 210 mV at I_C = 50 mA/I_B = 2.5 mA, it supports efficient on-state conduction in discrete logic-level switches and sensor interface stages where low voltage drop is critical.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	32 V - Maximum safe collector-emitter voltage under open-base condition; defines upper rail limit for switch/amplifier stage design.
I_C (DC)	100 mA - Continuous collector current rating; sets maximum steady-state load drive capability.
h_FE	200–450 at I_C = 2 mA - Confirmed DC current gain range for bias stability in amplifier configurations.
V_CEsat	≤ 250 mV at I_C = 10 mA - Ensures <250 mV voltage drop in saturated switching, minimizing power loss.
R_th(j-a)	500 K/W - Thermal resistance from junction to ambient on FR4 PCB; informs derating requirements above 25 °C.
f_T	100 MHz - Transition frequency at I_C = 10 mA/V_CE = 5 V; indicates usable bandwidth for RF-coupled or high-speed switching.
C_c	2.5 pF - Collector capacitance at V_CB = 10 V; impacts high-frequency response and Miller effect in amplifier designs.

Pinout & Package

BCW32,235 is housed in a plastic SOT23 (TO-236AB) surface-mount package measuring 2.9 × 1.3 × 1.0 mm, with gull-wing leads and standard JEDEC-compliant footprint.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control terminal for forward-biasing the base-emitter junction; requires current-limited drive to achieve target I_C.
2	Emitter	Current return path; connected to ground or low-side reference in common-emitter configurations.
3	Collector	Output current terminal; connects to load or pull-up resistor in switching or amplification topologies.

Key Features

Feature	Design Value
Low-voltage operation	Rated for 32 V V_CEO - Enables use in 3.3 V, 5 V, and 12 V systems without overvoltage risk.
High DC current gain	h_FE = 200–450 at I_C = 2 mA - Reduces required base drive current, easing MCU GPIO or logic driver loading.
Low saturation voltage	V_CEsat ≤ 250 mV - Minimizes conduction loss in discrete switch applications, improving efficiency.
SOT23 footprint	Standardized 3-pin SMT package - Supports automated assembly and board-level space optimization in compact designs.

Applications

LED Driver Circuit

Microcontroller GPIO Expander

Use Scenario: Driving 20 mA indicator LEDs from 3.3 V or 5 V microcontroller outputs.

IC Role / Device Role / Timing Role: Discrete NPN switch controlling LED anode/cathode current path.

Use Value: Low V_CEsat ensures minimal voltage headroom loss, preserving LED brightness at low supply rails.

Use Scenario: Amplifying weak analog sensor signals (e.g., thermistor, photodiode) before ADC sampling.

IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier with fixed bias network.

Use Value: Stable h_FE range enables predictable gain calibration and low-noise signal conditioning.

Power Supply Enable Switch

Level Translation Interface

Use Scenario: Enabling/disabling auxiliary 5 V or 12 V rails via logic-level control in embedded power management.

IC Role / Device Role / Timing Role: Low-side switch turning on PMOS/NMOS gate drivers or LDO enable pins.

Use Value: 100 mA I_C rating safely handles typical enable pin currents while maintaining margin.

Use Scenario: Translating 1.8 V logic outputs to 3.3 V or 5 V input thresholds in mixed-voltage digital subsystems.

IC Role / Device Role / Timing Role: Active pull-up level shifter using emitter-follower or common-base configuration.

Use Value: f_T = 100 MHz supports clean edge transitions up to ~10 MHz data rates without distortion.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC847B,215	Same SOT23 package; h_FE = 200–450 at I_C = 2 mA, but V_CEO = 45 V and P_tot = 300 mW.	Higher voltage headroom and power dissipation allow broader supply rail flexibility.	Select when operating above 32 V or requiring >250 mW continuous power handling.
MMBT3904LT1G	SOT23 package; h_FE = 100–300 at I_C = 10 mA, V_CEO = 40 V, P_tot = 310 mW.	Lower minimum h_FE and different gain test condition reduce predictability in low-I_C bias networks.	Prefer for cost-sensitive volume production where tighter h_FE tolerance is not required.

Compared with BCW32,235, BC847B,215 offers higher voltage and power margins without footprint change, while MMBT3904LT1G trades gain consistency for wider availability and lower unit cost in high-volume consumer designs.

Availability

BCW32,235 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, power supply enable switching, and level translation interfaces requiring stable component supply across industrial and consumer electronics programs.

Supply support for BCW32,235 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, formed in 2017 from the former NXP Standard Products division, with manufacturing and R&D centers across Asia, Europe, and the Americas.

The BCW32,235 belongs to Nexperia's general-purpose bipolar transistor product line, engineered for reliability and consistency in cost-sensitive, high-volume signal switching and amplification applications across computing, consumer, and industrial markets.

FAQ

Is BCW32,235 RoHS compliant and lead-free?

Yes, BCW32,235 is RoHS compliant and manufactured with lead-free terminations per Nexperia's standard qualification. The SOT23 package uses matte tin plating, and full compliance documentation-including substance declarations and test reports-is available through Nexperia's official product portal and authorized distributors.

What is the maximum operating temperature for BCW32,235?

The BCW32,235 has a maximum junction temperature (T_j) of 150 °C and an operating ambient temperature range of −65 °C to +150 °C. Derating of P_tot begins above 25 °C at 2.0 mW/°C, based on its R_th(j-a) of 500 K/W on FR4 PCB.

Does BCW32,235 have a PNP complement in the same package?

Yes, the BCW32,235 has a direct PNP complement: BCW30. Both share identical SOT23 packaging, voltage/current ratings (−32 V V_EBO, −100 mA I_E), and complementary marking (D2* for BCW32, D0* for BCW30), enabling matched pair usage in push-pull or differential amplifier designs.

Can BCW32,235 be used in audio preamplifier stages?

Yes, BCW32,235 is suitable for low-noise audio preamplifier stages due to its specified noise figure of ≤10 dB at I_C = 200 μA, V_CE = 5 V, and 1 kHz bandwidth. Its h_FE stability and low C_c (2.5 pF) support clean gain without excessive phase shift in single-stage CE configurations.

BCW32,235 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:: NPN

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

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

Vce Saturation (Max) @ Ib, Ic:: 210mV @ 2.5mA, 50mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 200 @ 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

BCW32,235 FAQ

1.How can I place an order for BCW32,235 through Aetrix?

Please submit a Request for Quotation (RFQ) for BCW32,235 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 BCW32,235 reliable?

The price and inventory of BCW32,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCW32,235 is usually 5 days.

3.What payment methods are accepted for BCW32,235?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCW32,235 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCW32,235?

BCW32,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCW32,235 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 BCW32,235?

For technical support, including BCW32,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCW32,235 requirements.

6.How does Aetrix verify that BCW32,235 is sourced from the original manufacturer or authorized distributors?

All BCW32,235 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 BCW32,235 meets industry standards.

7.What is the process for return or replacement of BCW32,235?

All BCW32,235 units undergo pre-shipment inspection (PSI). If there is an issue with BCW32,235, 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 BCW32,235 part is unused and in its original packaging.

Return procedure for BCW32,235:

1.Submit a request within 90 days.

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

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