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

Infineon Technologies BC847BE6433HTMA1

Name: BC847BE6433HTMA1
Brand: Infineon Technologies
SKU: BC847BE6433HTMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC847BE6433HTMA1

Manufacturer:: Infineon Technologies

Category:: Single Bipolar Transistors

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

Datasheet:: BC847BE6433HTMA1.pdf

Description:: TRANS NPN 45V 0.1A PG-SOT23

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Product details

Overview

BC847BE6433HTMA1 from Nexperia is an NPN silicon general-purpose bipolar junction transistor (BJT) designed for audio-frequency input stages and driver circuits. It delivers h_FE = 200–450 (at I_C = 2 mA, V_CE = 5 V), V_CE(sat) ≤ 250 mV (I_C = 10 mA, I_B = 0.5 mA), and f_T = 250 MHz, with AEC-Q101 qualification for automotive-grade reliability in signal amplification and switching applications.

For engineers reviewing the BC847BE6433HTMA1 datasheet, BC847BE6433HTMA1 pinout, BC847BE6433HTMA1 application, or BC847BE6433HTMA1 equivalent, key selection criteria include DC current gain grouping (h_FE B-grade), low-noise performance (F = 1.2–4 dB at 1 kHz), SOT23 package thermal resistance (R_thJS ≤ 240 K/W), and RoHS-compliant Pb-free construction.

Technical Context

This NPN transistor operates in linear and saturated modes across audio-frequency bands (30 Hz–15 kHz) with low base-emitter on-voltage (V_BE(ON) = 580–770 mV) and tight h_FE distribution per grade (B-group: 200–450). Its complementary PNP counterparts are BC856–BC860 series, enabling push-pull and differential pair designs.

Thermal design relies on junction-to-soldering-point resistance (R_thJS ≤ 240 K/W) and maximum power dissipation of 330 mW at T_S ≤ 71 °C. Electrical behavior is characterized at T_A = 25 °C, with validated parameters including C_cb = 0.95 pF and C_eb = 9 pF for high-frequency stability.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	45 V - Maximum collector-emitter voltage before breakdown under open-base conditions; defines safe operating voltage in common-emitter amplifier stages.
h_FE (B-grade)	200–450 - DC current gain at I_C = 2 mA, V_CE = 5 V; ensures predictable biasing and gain stability in low-current analog circuits.
V_CE(sat)	≤250 mV - Collector-emitter saturation voltage at I_C = 10 mA, I_B = 0.5 mA; minimizes conduction loss in switching and driver applications.
f_T	250 MHz - Transition frequency at I_C = 10 mA, V_CE = 5 V; supports stable small-signal amplification up to mid-VHF range.
C_cb	0.95 pF - Collector-base capacitance at V_CB = 10 V, f = 1 MHz; limits Miller effect and maintains bandwidth in high-gain configurations.
Noise figure	1.2–4 dB - Measured at I_C = 200 µA, V_CE = 5 V, f = 1 kHz, ∆f = 200 Hz, R_S = 2 kΩ; enables low-noise preamplifier design in audio front-ends.

Pinout & Package

SOT23 plastic surface-mount package with gull-wing leads; compact footprint (2.9 × 1.3 × 1.0 mm), rated for T_j = 150 °C and qualified to AEC-Q101 for automotive use.

Pin/Terminal	Circuit Role	Design Meaning
1 (Base)	Control electrode	Accepts base current to modulate collector current; requires external bias network for stable DC operating point.
2 (Emitter)	Current source terminal	Provides reference node for emitter-follower or common-emitter configuration; connected to ground or negative rail in most topologies.
3 (Collector)	Output current terminal	Delivers amplified or switched load current; routed to V_CC via load resistor or directly to next stage in cascode designs.

Key Features

Feature	Design Value
High DC current gain consistency	B-grade h_FE = 200–450 ensures repeatable biasing across production lots without individual trimming.
Low saturation voltage	V_CE(sat) ≤ 250 mV reduces power loss and self-heating in digital switching and linear driver roles.
Low-noise audio performance	F = 1.2–4 dB at 1 kHz enables clean signal amplification in microphone preamps and sensor interfaces.
AEC-Q101 qualification	Validated for automotive electronics, supporting extended temperature operation and long-term reliability in harsh environments.

Applications

Audio Input Amplifier

Automotive Sensor Interface

Use Scenario: Low-level signal amplification from electret microphones or piezoelectric sensors in infotainment head units.

IC Role / Device Role / Timing Role: NPN BJT configured as common-emitter preamplifier with fixed bias network.

Use Value: 1.2–4 dB noise figure and 200–450 h_FE maintain SNR integrity while delivering sufficient gain for ADC input conditioning.

Use Scenario: Signal conditioning for resistive temperature sensors (e.g., NTC thermistors) in engine control modules.

IC Role / Device Role / Timing Role: Emitter-follower buffer isolating sensor bridge from downstream ADC input.

Use Value: Low V_BE(ON) (580–770 mV) and AEC-Q101 qualification ensure accurate, drift-free voltage buffering across –40 °C to +125 °C.

LED Driver Switch

Logic-Level Translator

Use Scenario: Driving 20 mA indicator LEDs from 3.3 V GPIO pins in industrial HMIs and dashboard displays.

IC Role / Device Role / Timing Role: Saturated switch with base resistor limiting I_B to ensure full turn-on at I_C = 20 mA.

Use Value: V_CE(sat) ≤ 250 mV minimizes power dissipation (≤5 mW) and prevents LED brightness variation due to thermal droop.

Use Scenario: Level-shifting between 1.8 V logic (microcontroller I/O) and 5 V peripherals in automotive body control units.

IC Role / Device Role / Timing Role: Common-emitter inverter with pull-up resistor on collector to translate logic thresholds.

Use Value: f_T = 250 MHz supports clean edge transitions up to ~10 MHz, avoiding timing skew in bidirectional data lines.

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
BC847BW	SOT323 package (smaller footprint), R_thJS ≤ 240 K/W same, but P_tot = 250 mW at T_S ≤ 124 °C.	Better suited for space-constrained PCB layouts where thermal mass is higher; lower max power than SOT23 variant.	Select when board area is critical and ambient temperature remains below 85 °C.
BC847BL3	TSLP-3-1 ultra-thin package (0.5 mm height), R_thJS ≤ 60 K/W, P_tot = 250 mW at T_S ≤ 135 °C.	Enables ultra-low-profile assemblies (e.g., camera modules); improved thermal coupling to PCB copper.	Choose for high-density, thermally demanding applications requiring minimal Z-height.

Compared with BC847BW and BC847BL3, BC847BE6433HTMA1 offers the highest power rating (330 mW) and widest thermal margin in standard SOT23, making it optimal for general-purpose automotive and industrial driver circuits where layout flexibility and thermal headroom are prioritized over miniaturization.

Availability

BC847BE6433HTMA1 is available at Aetrix Electronics and suitable for automotive sensor interfaces, audio preamplifiers, and LED driver circuits requiring stable component supply and AEC-Q101 compliance.

Supply support for BC847BE6433HTMA1 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 discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.

BC847BE6433HTMA1 belongs to the BC846–BC850 family of general-purpose NPN transistors engineered for audio-frequency amplification, switching, and interface functions in automotive, industrial, and consumer systems.

FAQ

What is the exact h_FE range for BC847BE6433HTMA1?

The BC847BE6433HTMA1 is marked as "B" grade, specifying h_FE = 200–450 at I_C = 2 mA and V_CE = 5 V. This range is guaranteed per unit and verified during final test; typical values cluster near 290–330 under those conditions.

Does BC847BE6433HTMA1 support operation above 100 °C junction temperature?

Yes - its absolute maximum junction temperature is 150 °C, and it is AEC-Q101 qualified for continuous operation from –55 °C to +150 °C. Derating curves confirm usable power dissipation down to T_S = 71 °C for full 330 mW rating.

Can BC847BE6433HTMA1 replace BC847B in existing SOT23 footprints?

Yes - BC847BE6433HTMA1 uses the standard SOT23-3 package with identical pinout (1=Base, 2=Emitter, 3=Collector) and mechanical dimensions (2.9 × 1.3 × 1.0 mm), ensuring direct drop-in compatibility without layout changes.

Is BC847BE6433HTMA1 RoHS compliant and halogen-free?

Yes - it is fully RoHS compliant (Pb-free) and halogen-free per Nexperia's material declarations. The "E6433" suffix denotes lead-free plating and green molding compound, meeting JEDEC JS709 and IEC 61249-2-21 standards.

BC847BE6433HTMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Last Time Buy

Transistor Type:: NPN

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

Voltage - Collector Emitter Breakdown (Max):: 45 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:: 330 mW

Frequency - Transition:: 250MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SOT23

BC847BE6433HTMA1 FAQ

1.How can I place an order for BC847BE6433HTMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC847BE6433HTMA1 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 BC847BE6433HTMA1 reliable?

The price and inventory of BC847BE6433HTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847BE6433HTMA1 is usually 5 days.

3.What payment methods are accepted for BC847BE6433HTMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847BE6433HTMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC847BE6433HTMA1?

BC847BE6433HTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC847BE6433HTMA1 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 BC847BE6433HTMA1?

For technical support, including BC847BE6433HTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847BE6433HTMA1 requirements.

6.How does Aetrix verify that BC847BE6433HTMA1 is sourced from the original manufacturer or authorized distributors?

All BC847BE6433HTMA1 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 BC847BE6433HTMA1 meets industry standards.

7.What is the process for return or replacement of BC847BE6433HTMA1?

All BC847BE6433HTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BC847BE6433HTMA1, 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 BC847BE6433HTMA1 part is unused and in its original packaging.

Return procedure for BC847BE6433HTMA1:

1.Submit a request within 90 days.

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

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