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

Nexperia USA Inc. BC860CW,115

Name: BC860CW,115
Brand: Nexperia USA Inc.
SKU: BC860CW,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC860CW,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: SC-70, SOT-323

Datasheet:: BC860CW,115.pdf

Description:: TRANS PNP 45V 0.1A SOT-323

Quantity:: RFQ Add To RFQ list

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Inventory:18,860

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Product details

Overview

BC860CW,115 from Nexperia is a PNP general-purpose bipolar junction transistor in SOT323 package, rated for −45 V V_CEO, −50 V V_CBO, and −100 mA I_C, with DC current gain (h_FE) of 420–800 at I_C = −2 mA, used in low-noise audio amplification stages and signal switching circuits.

For engineers reviewing the BC860CW,115 datasheet, BC860CW,115 pinout, BC860CW,115 application, or BC860CW,115 equivalent, key selection criteria include its PNP polarity, SOT323 thermal resistance (625 K/W), low-noise figure (4 dB at 1 kHz), V_BE of 600–750 mV, and compatibility with BC850W as NPN complement in dual-rail designs.

Technical Context

This device operates as a medium-gain, low-voltage PNP BJT optimized for linear amplification and switching in ambient temperatures up to +150 °C. Its h_FE range (420–800) ensures stable biasing across production lots, while f_T ≥ 100 MHz supports audio-frequency signal integrity without high-frequency roll-off.

Designed for FR4 PCB mounting, it delivers 200 mW total power dissipation with R_{th j-a} = 625 K/W, and exhibits low leakage: ICBO ≤ −15 nA at V_CB = −30 V and T_j = 25 °C, enabling reliable operation in battery-powered portable audio equipment.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−45 V: Maximum safe collector-emitter voltage under open-base condition; defines usable supply headroom in PNP emitter-follower or common-emitter stages.
h_FE	420–800 at I_C = −2 mA: Ensures predictable DC bias stability across temperature and process variation in amplifier quiescent point design.
V_CE(sat)	≤ −300 mV at I_C = −10 mA / I_B = −0.5 mA: Enables low-loss switching in logic-level interface and load control applications.
f_T	≥ 100 MHz: Supports full audio bandwidth (20 Hz–20 kHz) with margin, suitable for preamplifier gain stages without phase degradation.
ICBO	≤ −15 nA at V_CB = −30 V, 25 °C: Minimizes temperature-dependent leakage drift in high-impedance bias networks.
Noise Figure	4 dB at 1 kHz, RS = 2 kΩ: Meets low-noise requirements for tape recorder input stages and hi-fi preamp inputs.

Pinout & Package

SOT323 plastic surface-mounted package (3 leads), dimensions: 2.2 mm × 1.35 mm × 0.95 mm max height; FR4 board mountable with 625 K/W junction-to-ambient thermal resistance.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Current-controlled input node; requires series resistor to limit I_B ≤ −200 mA peak and set operating point within h_FE range.
2	Emitter	Common terminal for PNP configuration; connects to higher potential rail; carries full I_C + I_B current.
3	Collector	Output terminal; sinks current toward lower-potential load; voltage swing limited by V_CEO = −45 V rating.

Key Features

Feature	Design Value
Low-noise audio performance	4 dB noise figure at 1 kHz enables use in sensitive microphone preamps and tape playback head amplifiers without added SNR penalty.
High h_FE consistency	420–800 range at −2 mA allows single-bias-resistor design across production lots without trim adjustments.
SOT323 thermal efficiency	625 K/W R_{th j-a} on FR4 enables 200 mW operation without heatsink in compact portable PCB layouts.
Complementary NPN pairing	Direct match with BC850W (SOT323, NPN, same V_CEO/I_C/h_FE specs) for push-pull output stages and differential pairs.

Applications

Tape Recorder Input Stage

Hi-Fi Preamplifier Gain Block

Use Scenario: Amplifying low-level magnetic tape playback signals before equalization and further processing.

IC Role / Device Role / Timing Role: PNP common-emitter voltage amplifier providing 20–30 dB midband gain with minimal added noise.

Use Value: 4 dB noise figure and 420–800 h_FE ensure high signal fidelity and stable DC operating point over temperature.

Use Scenario: First-stage gain in stereo preamplifier channel, accepting line-level or phono inputs.

IC Role / Device Role / Timing Role: Linear PNP amplifier configured in common-collector or common-emitter topology for low-output-impedance drive.

Use Value: V_CE(sat) ≤ −300 mV and f_T ≥ 100 MHz preserve transient response and harmonic integrity across 20 Hz–20 kHz.

Portable Audio Signal Switching

Low-Power Logic-Level Interface

Use Scenario: Muting or routing analog audio paths in battery-powered headphone amplifiers and portable mixers.

IC Role / Device Role / Timing Role: PNP switch controlling signal path conduction via base current modulation.

Use Value: −100 mA I_C rating and −300 mV V_CE(sat) enable clean on/off transitions with <100 µs turn-off delay.

Use Scenario: Level translation between 3.3 V microcontroller GPIO and 5 V analog subsystems.

IC Role / Device Role / Timing Role: Inverting level shifter converting active-high logic to active-low sink output.

Use Value: −45 V V_CEO and −5 V V_EBO provide robustness against supply transients and ESD coupling in mixed-voltage systems.

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
BC860B,115	h_FE = 220–475 (lower gain band); otherwise identical ratings and package.	Suitable where tighter h_FE tolerance is not required and cost optimization is prioritized.	Select when bias network can accommodate wider h_FE spread or when lower gain improves loop stability.
MMBT3906LT1G	V_CEO = −40 V (5 V lower); h_FE = 100–300 (lower and narrower range); SOT-23 package (larger footprint).	Acceptable in non-critical switching but marginal for low-noise audio due to higher noise figure (~10 dB).	Choose only for legacy SOT-23 board reuse; avoid in new audio-sensitive designs requiring <5 dB noise.

Compared with BC860B,115 and MMBT3906LT1G, BC860CW,115 offers superior noise performance and higher guaranteed h_FE, making it preferred for precision biasing and low-noise analog signal paths where gain consistency and SNR are critical.

Availability

BC860CW,115 is available at Aetrix Electronics and suitable for portable audio equipment, hi-fi preamplifier modules, and low-power analog signal switching applications requiring stable component supply and long-term industrial availability.

Supply support for BC860CW,115 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 semiconductors, formed in 2017 from the former NXP Standard Products division, specializing in high-volume, automotive-qualified, and industrial-grade components.

BC860CW,115 belongs to Nexperia's BC85x/BC86x family of general-purpose PNP/NPN transistors designed specifically for cost-sensitive, space-constrained audio and signal conditioning applications in consumer and portable electronics.

FAQ

Is BC860CW,115 pin-compatible with BC850W?

Yes - BC860CW,115 (PNP) and BC850W (NPN) share identical SOT323 package dimensions and pinout (1=base, 2=emitter, 3=collector), enabling direct complementary placement in push-pull or differential pair layouts without PCB redesign.

What is the maximum continuous collector current at 70 °C ambient?

At T_amb = 70 °C, derating applies: P_tot = 200 mW − (625 K/W × (70 − 25) K) = 200 − 28.125 = 171.875 mW. With V_CE ≈ −5 V, max I_C ≈ 34 mA continuous - well below the −100 mA absolute max rating but constrained by thermal limits.

Can BC860CW,115 be used in place of BC860B,115 without circuit changes?

Yes - both share identical voltage/current ratings, package, and pinout; BC860CW,115 simply guarantees higher minimum h_FE (420 vs. 220). Existing bias resistors will function, though quiescent current may increase slightly due to higher gain.

Does BC860CW,115 meet automotive AEC-Q101 requirements?

No - BC860CW,115 is qualified for industrial and consumer applications per its 1999 product data sheet; Nexperia offers AEC-Q101 variants (e.g., BC860BW-Q) with extended temperature testing and traceability, but this variant is not automotive-qualified.

BC860CW,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

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

Voltage - Collector Emitter Breakdown (Max):: 45 V

Vce Saturation (Max) @ Ib, Ic:: 650mV @ 5mA, 100mA

Current - Collector Cutoff (Max):: 15nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 420 @ 2mA, 5V

Power - Max:: 200 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323

BC860CW,115 FAQ

1.How can I place an order for BC860CW,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC860CW,115 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 BC860CW,115 reliable?

The price and inventory of BC860CW,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC860CW,115 is usually 5 days.

3.What payment methods are accepted for BC860CW,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC860CW,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC860CW,115?

BC860CW,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC860CW,115 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 BC860CW,115?

For technical support, including BC860CW,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC860CW,115 requirements.

6.How does Aetrix verify that BC860CW,115 is sourced from the original manufacturer or authorized distributors?

All BC860CW,115 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 BC860CW,115 meets industry standards.

7.What is the process for return or replacement of BC860CW,115?

All BC860CW,115 units undergo pre-shipment inspection (PSI). If there is an issue with BC860CW,115, 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 BC860CW,115 part is unused and in its original packaging.

Return procedure for BC860CW,115:

1.Submit a request within 90 days.

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

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