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

Nexperia USA Inc. BCW30,235

Name: BCW30,235
Brand: Nexperia USA Inc.
SKU: BCW30,235
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCW30,235

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BCW30,235.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BCW30,235 from Nexperia is a PNP general-purpose bipolar junction transistor (BJT) in SOT23 package, rated for −32 V V_CEO, −100 mA I_C, and DC current gain (h_FE) of 215–500 at −2 mA I_C. It serves as a low-voltage, low-current switching or linear amplification device in signal routing, level translation, and load control circuits.

For engineers reviewing the BCW30,235 datasheet, BCW30,235 pinout, BCW30,235 application, or BCW30,235 equivalent, key selection criteria include its PNP polarity, SOT23 footprint compatibility, guaranteed h_FE range, V_CEsat ≤ −300 mV at −10 mA/−0.5 mA, and thermal resistance of 500 K/W on FR4 PCB.

Technical Context

The BCW30,235 operates as a silicon PNP BJT with epitaxial planar construction, optimized for general-purpose analog and digital switching up to 100 MHz f_T. Its base-emitter junction exhibits V_BE = −600 to −750 mV at −2 mA I_C, and collector-base cutoff current remains ≤ −100 nA at −32 V and 25 °C.

Thermal performance is defined for mounting on standard FR4 PCB (R_th(j-a) = 500 K/W), with maximum junction temperature of 150 °C and storage temperature range from −65 to +150 °C. Absolute maximum ratings strictly follow IEC 60134, including −200 mA I_CM and −200 mA I_BM.

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 in PNP switch designs
I_C (DC)	−100 mA - Continuous collector current rating; sets max load drive capability in linear or saturated operation
h_FE	215–500 - DC current gain at −2 mA I_C/−5 V V_CE; ensures predictable base drive sizing for switching stability
V_CEsat	≤ −300 mV - Saturation voltage at −10 mA I_C/−0.5 mA I_B; minimizes conduction loss in low-side PNP switch configurations
f_T	100 MHz - Transition frequency at −10 mA I_C/−5 V V_CE; supports audio-frequency amplification and fast digital switching
R_th(j-a)	500 K/W - Junction-to-ambient thermal resistance on FR4 board; determines power derating above 25 °C ambient

Pinout & Package

BCW30,235 is housed in a plastic surface-mounted SOT23 (TO-236AB) package, measuring 2.8 mm × 1.4 mm × 1.1 mm with 0.95 mm lead pitch. The device uses standard pin 1 = Base, pin 2 = Emitter, pin 3 = Collector orientation per JEDEC outline.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control terminal for forward-biased PNP operation; requires negative bias relative to emitter to enable conduction
2	Emitter	Current source terminal in PNP configuration; typically tied to higher potential rail in high-side switch applications
3	Collector	Current sink terminal; connects to load and lower-potential node; carries full switched or amplified output current

Key Features

Feature	Design Value
Guaranteed h_FE range	215–500 at −2 mA I_C, enabling precise base resistor calculation without margin overdesign
Low V_CEsat	≤ −300 mV at −10 mA/−0.5 mA, reducing power dissipation and self-heating in battery-powered switches
High f_T	100 MHz, supporting stable small-signal amplification up to mid-audio frequencies without phase roll-off
Robust thermal rating	150 °C max junction temperature and −65 °C min storage temp, suitable for industrial ambient environments

Applications

LED Driver Circuit

Level Translation Interface

Use Scenario: Driving discrete red/green LEDs from 3.3 V or 5 V microcontroller GPIOs with current limiting.

IC Role / Device Role: PNP switch controlling LED anode connection to supply rail while sinking current through cathode to ground.

Use Value: V_CEsat ≤ −300 mV ensures ≥90% efficiency at 20 mA load; h_FE ≥215 allows <10 µA base drive for reliable turn-on.

Use Scenario: Translating logic-high signals from 1.8 V FPGA I/O to enable 5 V peripheral power rails.

IC Role / Device Role: Active-low level shifter using emitter-follower or common-emitter inversion topology.

Use Value: −32 V V_CEO provides ample headroom; −5 V V_EBO rating prevents base-emitter breakdown during input overshoot.

Audio Pre-amplifier Stage

Power Supply Enable Switch

Use Scenario: Low-noise pre-amplification of microphone or sensor signals in portable audio devices.

IC Role / Device Role: Common-emitter amplifier with emitter degeneration resistor for linearity and gain control.

Use Value: 10 dB noise figure at 1 kHz and 200 µA I_C preserves SNR; f_T = 100 MHz avoids bandwidth limitation below 20 kHz.

Use Scenario: Enabling/disabling 12 V auxiliary supplies in industrial controllers via microcontroller output.

IC Role / Device Role: High-side PNP switch controlling PMOS gate or directly sourcing load current.

Use Value: −100 mA I_C rating supports >100 mA enable loads; −32 V V_CEO accommodates automotive 12 V transients.

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	Same SOT23 package; h_FE = 160–400 (lower min); V_CEsat = −300 mV @ −50 mA/−5 mA (higher drive requirement)	Suitable for higher-current switching but less gain margin at light loads	Select when ≥50 mA load current is typical and tighter h_FE tolerance is acceptable
MMBT3906LT1G	Same SOT23; h_FE = 100–300 (narrower range); V_CEsat = −400 mV @ −10 mA/−1 mA (higher saturation loss)	Better availability in high-volume distribution; slightly lower RF performance (f_T = 250 MHz)	Prefer for cost-sensitive consumer designs where 100–300 h_FE suffices and −400 mV V_CEsat is tolerable

Compared with BCW30,235, BC807-25,215 offers higher current capability but reduced gain consistency at low I_C, while MMBT3906LT1G trades off saturation voltage and gain spread for broader global stock and lower unit cost-making BCW30,235 optimal for precision low-current PNP switching where h_FE ≥215 and V_CEsat ≤ −300 mV are critical.

Availability

BCW30,235 is available at Aetrix Electronics and suitable for LED driver circuits, level translation interfaces, audio pre-amplifier stages, and power supply enable switches requiring stable component supply and consistent parametric performance across production batches.

Supply support for BCW30,235 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 focus on automotive, industrial, computing, and consumer markets.

The BCW30,235 belongs to Nexperia's general-purpose bipolar transistor product line, engineered for reliable, cost-effective switching and amplification in space-constrained PCB layouts where SOT23 footprint and guaranteed h_FE are design-critical.

FAQ

Is BCW30,235 pin-compatible with BCW29?

Yes, BCW30,235 and BCW29 share identical SOT23 pinout (pin 1 = Base, pin 2 = Emitter, pin 3 = Collector) and mechanical outline. However, BCW30 has higher h_FE (215–500 vs. 120–260) and same absolute maximum ratings, making it a direct gain-enhanced replacement where higher current gain is beneficial.

What is the maximum operating frequency for small-signal amplification?

The BCW30,235 has a transition frequency f_T of 100 MHz at −10 mA I_C and −5 V V_CE. For stable small-signal amplification with ≤3 dB gain flatness, practical use is recommended up to 10–20 MHz; beyond that, phase shift and gain roll-off increase significantly.

Can BCW30,235 be used in high-temperature environments?

Yes - BCW30,235 is rated for junction temperatures up to 150 °C and ambient operating temperatures from −65 to +150 °C. When mounted on FR4 PCB (R_th(j-a) = 500 K/W), it can dissipate up to 250 mW at 25 °C ambient, derating linearly to zero at 150 °C junction temperature.

Does BCW30,235 have automotive qualification?

No - BCW30,235 is not AEC-Q101 qualified. It is a general-purpose transistor intended for industrial, computing, and consumer applications. For automotive-grade PNP transistors, Nexperia offers AEC-Q101 qualified variants such as BC807-25Q series with extended temperature and reliability testing.

BCW30,235 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:: 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:: 215 @ 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

BCW30,235 FAQ

1.How can I place an order for BCW30,235 through Aetrix?

Please submit a Request for Quotation (RFQ) for BCW30,235 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 BCW30,235 reliable?

The price and inventory of BCW30,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCW30,235 is usually 5 days.

3.What payment methods are accepted for BCW30,235?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCW30,235 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCW30,235?

BCW30,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCW30,235 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 BCW30,235?

For technical support, including BCW30,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCW30,235 requirements.

6.How does Aetrix verify that BCW30,235 is sourced from the original manufacturer or authorized distributors?

All BCW30,235 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 BCW30,235 meets industry standards.

7.What is the process for return or replacement of BCW30,235?

All BCW30,235 units undergo pre-shipment inspection (PSI). If there is an issue with BCW30,235, 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 BCW30,235 part is unused and in its original packaging.

Return procedure for BCW30,235:

1.Submit a request within 90 days.

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

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