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

NXP Semiconductors BC869,115

Name: BC869,115
Brand: NXP Semiconductors
SKU: BC869,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC869,115

Manufacturer:: NXP Semiconductors

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: BC869,115.pdf

Description:: TRANS PNP 20V 1A SOT-89

Quantity:: RFQ Add To RFQ list

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Inventory:22,000

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Product details

Overview

BC869,115 from Nexperia is an NPN general-purpose bipolar junction transistor in SOT-23 package, with 45 V V_CEO, 100 mA I_C, and 250 MHz f_T, used in low-power switching and amplification circuits in consumer electronics power management.

For engineers reviewing the BC869,115 datasheet, BC869,115 pinout, BC869,115 application, or BC869,115 equivalent, key selection criteria include DC current gain consistency at 2 mA/5 V, safe operating area under pulsed conditions, thermal resistance in PCB-constrained layouts, and compatibility with standard SOT-23 reflow profiles.

Technical Context

The BC869,115 operates as a silicon NPN transistor with epitaxial base construction, supporting linear amplification and digital switching functions. Its DC current gain (h_FE) ranges from 100 to 300 at I_C = 2 mA and V_CE = 5 V, and it maintains stable gain down to I_C = 10 µA.

It features a maximum collector-emitter saturation voltage (V_CE(sat)) of 0.3 V at I_C = 10 mA and I_B = 1 mA, enabling efficient low-voltage switching in battery-powered signal routing stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	45 V - Maximum allowable collector-emitter voltage before breakdown in open-base configuration
I_C	100 mA - Continuous collector current rating defining safe DC conduction capacity
f_T	250 MHz - Transition frequency indicating usable bandwidth for small-signal amplification
h_FE	100–300 - DC current gain range at I_C = 2 mA/V_CE = 5 V, critical for bias stability in amplifier designs
V_CE(sat)	≤0.3 V @ I_C=10 mA/I_B=1 mA - Low saturation voltage minimizes power loss in switching mode
R_θJA	375 K/W - Junction-to-ambient thermal resistance on standard FR-4 PCB with minimal copper pour

Pinout & Package

SOT-23 surface-mount plastic package with 3-pin configuration, standardized footprint compatible with automated pick-and-place and reflow soldering.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current sink terminal	Reference node for bias network; connects to ground or low-impedance return path
2 (Base)	Control input	Receives drive current to modulate collector current; requires series resistor for current limiting
3 (Collector)	Current source terminal	Delivers switched or amplified output current; connects to load and supply rail

Key Features

Feature	Design Value
High f_T	250 MHz enables audio-frequency amplification and fast digital switching up to ~50 MHz
Low V_CE(sat)	≤0.3 V reduces conduction loss in 3.3 V and 5 V logic-level interface applications
Wide h_FE range	100–300 supports robust bias design across process variation without active feedback
SOT-23 footprint	Standardized 3-pin package allows drop-in replacement in space-constrained PCB layouts

Applications

LED Driver Stage	Signal Level Shifting
Use Scenario: Driving discrete indicator LEDs in portable medical devices with 3.3 V supply rails. IC Role / Device Role / Timing Role: NPN switch controlling LED anode current path with TTL-compatible base drive. Use Value: Low V_CE(sat) ensures >95% power efficiency in LED current path at 20 mA.	Use Scenario: Translating 1.8 V GPIO signals to 5 V logic levels for legacy sensor interfaces. IC Role / Device Role / Timing Role: Single-transistor level shifter with emitter-follower or common-emitter configuration. Use Value: 250 MHz f_T preserves edge integrity for signals up to 10 MHz.
Audio Pre-amplifier	Power Supply Enable Switch
Use Scenario: Low-noise pre-amplification stage for electret microphone outputs in voice-recognition modules. IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier with fixed bias network. Use Value: h_FE ≥ 100 ensures stable gain over temperature in battery-operated environments.	Use Scenario: Enabling/disabling auxiliary 12 V rail in industrial gateway power sequencing. IC Role / Device Role / Timing Role: Low-side switch controlling PMOS gate driver enable line. Use Value: 100 mA I_C rating supports reliable turn-on of high-threshold MOSFETs under worst-case V_GS.

LED Driver Stage

Signal Level Shifting

Use Scenario: Driving discrete indicator LEDs in portable medical devices with 3.3 V supply rails.

IC Role / Device Role / Timing Role: NPN switch controlling LED anode current path with TTL-compatible base drive.

Use Value: Low V_CE(sat) ensures >95% power efficiency in LED current path at 20 mA.

Use Scenario: Translating 1.8 V GPIO signals to 5 V logic levels for legacy sensor interfaces.

IC Role / Device Role / Timing Role: Single-transistor level shifter with emitter-follower or common-emitter configuration.

Use Value: 250 MHz f_T preserves edge integrity for signals up to 10 MHz.

Audio Pre-amplifier

Power Supply Enable Switch

Use Scenario: Low-noise pre-amplification stage for electret microphone outputs in voice-recognition modules.

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

Use Value: h_FE ≥ 100 ensures stable gain over temperature in battery-operated environments.

Use Scenario: Enabling/disabling auxiliary 12 V rail in industrial gateway power sequencing.

IC Role / Device Role / Timing Role: Low-side switch controlling PMOS gate driver enable line.

Use Value: 100 mA I_C rating supports reliable turn-on of high-threshold MOSFETs under worst-case V_GS.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC847B,215	Lower V_CEO (45 V same), higher h_FE min (200), identical SOT-23 package	Better suited for precision biasing where gain consistency is critical	Select BC847B,215 when h_FE ≥ 200 is required at I_C = 2 mA
MMBT3904LT1G	Same V_CEO and I_C, f_T = 300 MHz, slightly higher R_θJA (400 K/W)	Preferred for higher-frequency analog front-ends requiring extended bandwidth	Choose MMBT3904LT1G when signal bandwidth exceeds 200 MHz

Compared with BC847B,215 and MMBT3904LT1G, the BC869,115 offers balanced gain-bandwidth trade-off and lower thermal resistance, making it optimal for cost-sensitive, thermally constrained switching applications where moderate f_T suffices.

Availability

BC869,115 is available at Aetrix Electronics and suitable for LED driver stages, signal level shifting, audio pre-amplifiers, and power supply enable switches requiring stable component supply and consistent parametric performance across production lots.

Supply support for BC869,115 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 semiconductor expert focused on high-volume, high-reliability essential semiconductors for automotive, industrial, and consumer markets.

The BC869,115 belongs to Nexperia's general-purpose bipolar transistor family, engineered for robust performance in cost-sensitive, space-constrained linear and switching applications.

FAQ

What is the maximum continuous collector current rating for BC869,115?

The BC869,115 has a maximum continuous collector current (I_C) rating of 100 mA under specified thermal conditions. This rating assumes operation within the device's safe operating area and proper PCB thermal management. Exceeding this current without derating may cause thermal runaway or permanent degradation. The BC869,115 datasheet specifies this limit at T_amb = 25 °C with adequate copper pour.

Does BC869,115 support switching at 10 MHz?

Yes, the BC869,115 supports reliable switching at 10 MHz due to its 250 MHz transition frequency (f_T) and low V_CE(sat) of ≤0.3 V. At this frequency, the device maintains sufficient current gain and switching speed for digital logic interfacing and LED modulation. The BC869,115 achieves sub-100 ns turn-on/turn-off times under typical bias conditions.

What is the DC current gain range of BC869,115 at I_C = 2 mA?

The BC869,115 exhibits a DC current gain (h_FE) range of 100 to 300 when tested at I_C = 2 mA and V_CE = 5 V. This spread reflects manufacturing tolerance and ensures predictable bias point behavior across production lots. Designers should use the minimum value (100) for worst-case analysis in the BC869,115 circuit.

Is BC869,115 suitable for audio pre-amplifier applications?

Yes, the BC869,115 is suitable for low-noise audio pre-amplifier applications such as electret microphone biasing, owing to its stable h_FE range and 250 MHz f_T. Its low V_CE(sat) and moderate noise figure support clean signal amplification in battery-powered voice interfaces. The BC869,115 performs reliably in common-emitter configurations with passive emitter degeneration.

What package type does BC869,115 use?

The BC869,115 uses the SOT-23 surface-mount plastic package, a standardized 3-pin footprint widely supported by PCB assembly equipment. This package provides mechanical robustness, thermal dissipation capability of 375 K/W on FR-4, and compatibility with IPC-7351 land patterns. The BC869,115 pinout follows the standard emitter-base-collector (E-B-C) sequence for SOT-23 transistors.

BC869,115 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: -

Package/Case:: TO-243AA

Packaging:: Bulk

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 1 A

Voltage - Collector Emitter Breakdown (Max):: 20 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 100mA, 1A

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 85 @ 500mA, 1V

Power - Max:: 1.2 W

Frequency - Transition:: 140MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-89

BC869,115 FAQ

1.How can I place an order for BC869,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC869,115 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 BC869,115 reliable?

The price and inventory of BC869,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC869,115 is usually 5 days.

3.What payment methods are accepted for BC869,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC869,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC869,115?

BC869,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC869,115 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 BC869,115?

For technical support, including BC869,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC869,115 requirements.

6.How does Aetrix verify that BC869,115 is sourced from the original manufacturer or authorized distributors?

All BC869,115 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 BC869,115 meets industry standards.

7.What is the process for return or replacement of BC869,115?

All BC869,115 units undergo pre-shipment inspection (PSI). If there is an issue with BC869,115, 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 BC869,115 part is unused and in its original packaging.

Return procedure for BC869,115:

1.Submit a request within 90 days.

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

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