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

Diodes Incorporated BC848C-7-F

Name: BC848C-7-F
Brand: Diodes Incorporated
SKU: BC848C-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC848C-7-F

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

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

Datasheet:: BC848C-7-F.pdf

Description:: TRANS NPN 30V 0.1A SOT-23-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC848C-7-F from Diodes Incorporated is an NPN small-signal transistor in SOT23 package, rated for 30 V V_CEO, 100 mA I_C, and 600 minimum h_FE at 2 mA/5 V, optimized for switching and audio-frequency amplification in space-constrained PCBs.

For engineers reviewing the BC848C-7-F datasheet, BC848C-7-F pinout, BC848C-7-F application, or BC848C-7-F equivalent, key selection criteria include DC current gain consistency across temperature, low V_CE(sat) at 10 mA/0.5 mA drive, ESD robustness (4 kV HBM), RoHS/Green compliance, and SOT23 thermal performance under 15 mm × 15 mm copper layout.

Technical Context

This transistor operates as a general-purpose NPN switch or linear amplifier with verified gain-bandwidth product of 100–300 MHz at 10 mA/5 V, supporting AF and low-speed digital signal conditioning. Its safe operating area is defined up to 30 V V_CE and 100 mA I_C with derated power dissipation above 25°C ambient.

Thermal resistance is specified at 357 °C/W (junction-to-ambient, 15 mm × 15 mm 1 oz copper) and 350 °C/W (junction-to-leads), enabling predictable thermal design in compact layouts. The device exhibits 2–10 dB noise figure at 1 kHz with 2 kΩ source impedance, suitable for low-noise preamplifier stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	30 V - Maximum collector-emitter voltage before breakdown; sets upper limit for rail voltage in switching applications.
I_C	100 mA continuous - Safe steady-state collector current; supports logic-level load switching and small-signal amplification.
h_FE (min)	420 - Guaranteed DC current gain at 2 mA/5 V; ensures reliable saturation with low base drive in switching circuits.
V_CE(sat)	90–250 mV - Low saturation voltage at 10 mA/0.5 mA; minimizes power loss and heat generation in on-state operation.
f_T	100–300 MHz - Gain-bandwidth product; enables stable amplification up to mid-AF range and fast edge response in digital buffers.
ESD HBM	4,000 V - Human Body Model rating; provides robust handling during manual assembly and board-level testing.
P_D	350 mW - Max power dissipation on 15 mm × 15 mm 1 oz copper; defines thermal headroom for continuous operation.

Pinout & Package

Package: SOT23 - Surface-mount plastic package with 3-pin configuration, 0.008 g mass, UL 94V-0 flammability rating, and matte tin-plated leads compliant with MIL-STD-202 Method 208.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current sink terminal	Reference node for biasing; connects to ground or low-impedance return path in common-emitter configurations.
2 (Base)	Control input	Receives current-limited drive to modulate collector current; requires series resistor to limit I_B per h_FE target.
3 (Collector)	Current source terminal	Delivers switched or amplified output; connects to load and supply rail; must remain within SOA limits under transient conditions.

Key Features

Feature	Design Value
High h_FE grade (C)	420–800 min/max at 2 mA/5 V - Reduces required base drive current and simplifies driver circuitry.
Low V_CE(sat)	90 mV typical at 10 mA/0.5 mA - Enables efficient switching in battery-powered and thermally sensitive designs.
Green / Halogen-free	<900 ppm Br, <900 ppm Cl, <1000 ppm Sb - Meets global environmental regulations without compromising solderability or reliability.
SOT23 mechanical compatibility	Standardized footprint per JEDEC TO-236AB - Ensures drop-in replacement and automated placement compatibility across manufacturers.

Applications

Audio Preamp Stage

Logic-Level Switch Driver

Use Scenario: Amplifying microphone or line-level signals in portable audio devices before ADC sampling.

IC Role / Device Role / Timing Role: NPN small-signal amplifier in common-emitter configuration with emitter degeneration for linearity.

Use Value: 2–10 dB noise figure and 100–300 MHz f_T support clean gain up to 20 kHz with minimal distortion.

Use Scenario: Driving LED indicators, relays, or MOSFET gates from 3.3 V or 5 V microcontroller GPIO pins.

IC Role / Device Role / Timing Role: Digital switch with saturated on/off states controlled by base current.

Use Value: 90 mV V_CE(sat) at 10 mA/0.5 mA ensures >95% efficiency in on-state and fast turn-off due to low C_obo (3 pF).

Temperature-Stable Bias Network

Industrial Sensor Interface

Use Scenario: Providing stable collector current for precision reference circuits over -40°C to +125°C ambient.

IC Role / Device Role / Timing Role: Current source element with h_FE variation bounded per datasheet curves across temperature.

Use Value: h_FE remains ≥300 at 150°C (per Fig. 5), enabling predictable biasing in automotive under-hood modules.

Use Scenario: Conditioning analog outputs from pressure or temperature sensors before transmission to MCU.

IC Role / Device Role / Timing Role: Low-noise buffer stage isolating sensor from downstream loading effects.

Use Value: 3 pF C_obo and 18–60 µS hoe minimize capacitive loading and maintain signal integrity at sensor bandwidths ≤100 kHz.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC847C-7-F	V_CEO = 45 V, V_CE(sat) = 100–300 mV, h_FE = 420–800 (same grade)	Higher breakdown margin for 5–12 V rail systems; slightly higher V_CE(sat) at high I_C	Select when operating V_CE exceeds 30 V but <45 V; otherwise identical SOT23 footprint and biasing.
MMBT3904LT1G	V_CEO = 40 V, h_FE = 100–300 (B grade), V_CE(sat) = 200–300 mV at 10 mA/1 mA	Lower gain consistency and higher saturation voltage; wider h_FE spread increases design margin requirements.	Choose only if legacy BOM mandates ON Semi part; verify gain distribution and thermal derating in production.

Compared with BC847C-7-F and MMBT3904LT1G, BC848C-7-F offers optimal balance of 30 V breakdown safety margin, lowest V_CE(sat), and tightest h_FE binning-making it preferred for compact, low-power switching where rail voltage is ≤3.3 V or regulated 5 V with strict thermal constraints.

Availability

BC848C-7-F is available at Aetrix Electronics and suitable for audio preamplifiers, logic-level switch drivers, and industrial sensor interfaces requiring stable component supply, consistent h_FE binning, and RoHS-compliant SOT23 packaging.

Supply support for BC848C-7-F 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, environmentally compliant components for industrial, computing, and consumer markets.

The BC846A–BC848C series targets cost-sensitive, high-volume applications demanding proven SOT23 reliability, precise gain grading, and full Green/RoHS compliance without performance trade-offs.

FAQ

What is the maximum junction temperature for BC848C-7-F?

The absolute maximum junction temperature is +150°C, with storage temperature matching this range. Operation above 125°C requires derating power dissipation per Figure 2 in the datasheet-350 mW at 25°C ambient drops to ~200 mW at 85°C on 15 mm × 15 mm 1 oz copper.

Is BC848C-7-F suitable for linear amplifier use?

Yes-it is characterized for AF amplification with 2–10 dB noise figure at 1 kHz and 100–300 MHz f_T. For linear operation, bias must keep V_CE ≥1 V and I_C within 10–50 mA to avoid distortion and thermal runaway, per Figure 1 and Figure 2.

Does BC848C-7-F have automotive qualification?

No-the BC848C-7-F is an industrial-grade part. Diodes offers the automotive-compliant BC848CQ variant (separate datasheet DS11108Q) with AEC-Q101 qualification, extended temperature range (-40°C to +150°C), and enhanced process controls.

What does the "K1M" marking on BC848C-7-F indicate?

"K1M" is the top-side package marking: "K1" identifies the BC848C device type, and "M" denotes year code for 2025 per Diodes' date code system (U=2007, M=2025). Full date includes month code (e.g., "M9" = September 2025).

BC848C-7-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

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

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

Power - Max:: 300 mW

Frequency - Transition:: 300MHz

Operating Temperature:: -65°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

BC848C-7-F FAQ

1.How can I place an order for BC848C-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for BC848C-7-F 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 BC848C-7-F reliable?

The price and inventory of BC848C-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC848C-7-F is usually 5 days.

3.What payment methods are accepted for BC848C-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC848C-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC848C-7-F?

BC848C-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC848C-7-F 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 BC848C-7-F?

For technical support, including BC848C-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC848C-7-F requirements.

6.How does Aetrix verify that BC848C-7-F is sourced from the original manufacturer or authorized distributors?

All BC848C-7-F 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 BC848C-7-F meets industry standards.

7.What is the process for return or replacement of BC848C-7-F?

All BC848C-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BC848C-7-F, 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 BC848C-7-F part is unused and in its original packaging.

Return procedure for BC848C-7-F:

1.Submit a request within 90 days.

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

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