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

Nexperia USA Inc. BC848B,215

Name: BC848B,215
Brand: Nexperia USA Inc.
SKU: BC848B,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC848B,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BC848B,215.pdf

Description:: TRANS NPN 30V 0.1A TO-236AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC848B,215 from Nexperia is an NPN general-purpose bipolar junction transistor in SOT23 (TO-236AB) surface-mount package, rated for 30 V V_CEO, 100 mA I_C, and DC current gain (h_FE) of 200–450 at I_C = 2 mA, V_CE = 5 V. It serves as a low-voltage switching and small-signal amplification device in consumer power management and signal conditioning circuits.

For engineers reviewing the BC848B,215 datasheet, BC848B,215 pinout, BC848B,215 application, or BC848B,215 equivalent, key selection criteria include verified h_FE range, SOT23 thermal resistance (500 K/W), V_CEsat ≤ 250 mV at I_C = 10 mA/I_B = 0.5 mA, and JEITA/JEDEC-compliant marking code "1K*".

Technical Context

The BC848B,215 operates as a silicon NPN BJT with base-controlled current amplification, optimized for linear amplification and saturated switching in low-power analog and digital interface stages. Its design supports stable h_FE across −55 °C to +150 °C ambient, with V_BE = 580–700 mV at I_C = 2 mA and V_CE = 5 V.

Thermal performance is defined for FR4 PCB mounting (1.6 mm thickness, single-sided copper), delivering P_tot = 250 mW at T_amb ≤ 25 °C and R_th(j-a) = 500 K/W. Electrical limits include V_CBO = 30 V, V_EBO = 5 V, and I_CM = 200 mA (1 ms pulse).

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	30 V - Maximum collector-emitter voltage before breakdown under open-base condition; defines safe operating voltage in switching applications.
I_C	100 mA - Continuous collector current rating; sets upper limit for steady-state load drive capability.
h_FE	200–450 - DC current gain at V_CE = 5 V, I_C = 2 mA; determines base drive requirements for saturation in switch designs.
V_CEsat	90–250 mV - Collector-emitter saturation voltage at I_C = 10 mA / I_B = 0.5 mA; directly impacts conduction loss and thermal rise in on-state operation.
P_tot	250 mW - Total power dissipation at T_amb ≤ 25 °C on FR4 PCB; constrains usable power envelope without heatsinking.
f_T	100 MHz - Transition frequency at V_CE = 5 V, I_C = 10 mA; indicates usable bandwidth for small-signal amplification up to ~10 MHz.
C_c	2.5–3 pF - Collector capacitance at V_CB = 10 V; affects high-frequency response and noise coupling in RF-adjacent circuits.

Pinout & Package

SOT23 (TO-236AB) plastic surface-mount package with 3 leads, 1.3 mm × 2.9 mm footprint, 0.95 mm height, and standard FR4-compatible reflow soldering profile.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Current-controlled input node; requires 0.5–5 mA base drive to saturate at 10–100 mA collector load.
2	Emitter	Common reference terminal; tied to ground or low-side return path in common-emitter configurations.
3	Collector	Output current sink node; connects to load (e.g., LED, relay coil, logic input) with up to 30 V supply potential.

Key Features

Feature	Design Value
JEDEC-qualified SOT23 package	Enables automated pick-and-place assembly and IPC-compliant reflow processing on standard PCBs.
Wide h_FE range (200–450)	Reduces base drive variability across production lots, simplifying bias network design for consistent switching thresholds.
V_CEsat ≤ 250 mV @ 10 mA	Minimizes power loss and self-heating in battery-powered or thermally constrained applications.
150 °C max junction temperature	Supports operation in automotive cabin modules and industrial control enclosures without derating below 100 mA.
Low C_c (2.5–3 pF)	Preserves signal integrity in multi-stage amplifier chains and reduces crosstalk in dense mixed-signal layouts.

Applications

LED Driver Circuit

Microcontroller GPIO Interface

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

IC Role / Device Role / Timing Role: Low-side NPN switch controlled by MCU GPIO pin.

Use Value: V_CEsat ≤ 250 mV ensures >95% LED forward voltage utilization; h_FE ≥ 200 allows <500 µA base current for full saturation.

Use Scenario: Level-shifting and current boosting between 1.8 V/3.3 V logic and 5 V peripherals.

IC Role / Device Role / Timing Role: Digital buffer amplifier in open-collector configuration.

Use Value: f_T = 100 MHz supports clean edge transitions up to 10 MHz; low V_BE (580–700 mV) enables reliable turn-on from sub-2 V logic levels.

Audio Pre-amplifier Stage

Power Supply Enable Switch

Use Scenario: Single-transistor common-emitter preamp for electret microphone signals.

IC Role / Device Role / Timing Role: Small-signal voltage amplifier with emitter degeneration.

Use Value: NF = 2–10 dB at 1 kHz enables SNR > 60 dB in portable audio; h_FE stability over temperature maintains gain consistency.

Use Scenario: Enabling/disabling 12 V auxiliary rails using 3.3 V system controller.

IC Role / Device Role / Timing Role: High-side or low-side enable switch in discrete PMIC section.

Use Value: V_CEO = 30 V provides 2× margin over 12 V rail; I_CM = 200 mA handles inrush during hot-plug events.

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	Lower h_FE range (110–800 vs. 200–450); same V_CEO, I_C, and SOT23 package.	Broader h_FE spread increases base resistor tolerance sensitivity in precision-switching designs.	Select when wider gain distribution is acceptable and cost optimization is prioritized over tight h_FE control.
MMBT3904LT1G	Higher V_CEO (40 V), lower V_CEsat (300 mV max), same SOT23 footprint; h_FE = 100–300 at I_C = 10 mA.	Superior voltage headroom suits 24 V industrial I/O; higher V_CEsat increases conduction loss at 100 mA.	Prefer for 24 V systems requiring margin beyond 30 V, accepting slightly higher saturation loss at full load.

Compared with BC848B,215, BC847B,215 offers wider h_FE variation but identical voltage/current ratings, while MMBT3904LT1G trades guaranteed low V_CEsat for higher V_CEO-making it suitable for 24 V applications where BC848B,215 would operate near its absolute maximum rating.

Availability

BC848B,215 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller interface buffers, audio preamplifiers, and power supply enable switches requiring stable component supply and JEDEC-standard SOT23 compatibility.

Supply support for BC848B,215 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 specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive-grade and industrial-grade components.

The BC848 series belongs to Nexperia's general-purpose transistor product line, engineered for cost-sensitive, high-yield applications in consumer electronics, industrial controls, and communication interfaces where robustness and manufacturability are critical.

FAQ

What is the maximum continuous collector current for BC848B,215?

The BC848B,215 is rated for 100 mA continuous collector current (I_C) under standard conditions (T_amb ≤ 25 °C, FR4 PCB). At elevated ambient temperatures, derating applies per the thermal resistance of 500 K/W; for example, at 75 °C ambient, maximum I_C drops to approximately 60 mA to maintain T_j ≤ 150 °C.

Is BC848B,215 suitable for switching 12 V loads?

Yes-its 30 V V_CEO rating provides 2.5× safety margin over 12 V loads, and its 200–450 h_FE ensures reliable saturation with typical base drive currents of 0.5–5 mA. Verified V_CEsat ≤ 250 mV at I_C = 10 mA confirms low-loss operation in such configurations.

How does the SOT23 package affect thermal performance?

The SOT23 package delivers R_th(j-a) = 500 K/W on standard FR4 PCB, meaning a 250 mW power dissipation raises junction temperature by 125 K above ambient. This necessitates layout attention: minimum 10 mm² copper pour under the pad and avoidance of adjacent heat sources to sustain full-rated current at 25 °C ambient.

What marking code identifies BC848B,215 on the device body?

The BC848B,215 is marked with "1K*" on the top surface of the SOT23 package, where "*" denotes manufacturing location (e.g., "p" for Hong Kong, "t" for Malaysia). This marking is standardized per Nexperia's ordering information and matches JEITA/JEDEC SOT23 identification conventions.

BC848B,215 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):: 30 V

Vce Saturation (Max) @ Ib, Ic:: 600mV @ 5mA, 100mA

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

BC848B,215 FAQ

1.How can I place an order for BC848B,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC848B,215 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 BC848B,215 reliable?

The price and inventory of BC848B,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC848B,215 is usually 5 days.

3.What payment methods are accepted for BC848B,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC848B,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC848B,215?

BC848B,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC848B,215 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 BC848B,215?

For technical support, including BC848B,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC848B,215 requirements.

6.How does Aetrix verify that BC848B,215 is sourced from the original manufacturer or authorized distributors?

All BC848B,215 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 BC848B,215 meets industry standards.

7.What is the process for return or replacement of BC848B,215?

All BC848B,215 units undergo pre-shipment inspection (PSI). If there is an issue with BC848B,215, 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 BC848B,215 part is unused and in its original packaging.

Return procedure for BC848B,215:

1.Submit a request within 90 days.

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

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