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

Infineon Technologies BC847BWH6327XTSA1

Name: BC847BWH6327XTSA1
Brand: Infineon Technologies
SKU: BC847BWH6327XTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC847BWH6327XTSA1

Manufacturer:: Infineon Technologies

Category:: Single Bipolar Transistors

Package:: SC-70, SOT-323

Datasheet:: BC847BWH6327XTSA1.pdf

Description:: TRANS NPN 45V 0.1A PG-SOT323

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC847BWH6327XTSA1 from Infineon Technologies is an NPN silicon general-purpose bipolar junction transistor (BJT) designed for audio-frequency input stages and driver applications. It delivers high DC current gain (h_FE = 200–450 at I_C = 2 mA), low V_CE(sat) (≤250 mV at I_C = 10 mA/I_B = 0.5 mA), and low noise (F = 1.2–4 dB at 1 kHz), with V_CEO = 45 V and P_tot = 250 mW in SOT323 package.

For engineers reviewing the BC847BWH6327XTSA1 datasheet, BC847BWH6327XTSA1 pinout, BC847BWH6327XTSA1 application, or BC847BWH6327XTSA1 equivalent, key selection criteria include h_FE group B performance consistency, AEC-Q101 qualification for automotive use, RoHS-compliant SOT323 packaging, and verified low-noise operation in 30 Hz–15 kHz signal paths.

Technical Context

This transistor operates as a linear amplifying or switching element in low-voltage, medium-current analog and digital interface circuits. Its h_FE grouping (B: 200–450) ensures predictable current amplification across production lots, while its 45 V V_CEO rating supports rail-to-rail operation in 24 V industrial control inputs and 12 V automotive sensor interfaces.

The device exhibits low base-emitter saturation voltage (V_BE(sat) ≤ 900 mV at I_C = 100 mA/I_B = 5 mA) and transition frequency f_T = 250 MHz, enabling stable small-signal amplification up to mid-VHF range and fast switching in pulse-width modulation drivers.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	45 V - Supports operation in 24 V systems with margin against transients
h_FE (I_C = 2 mA)	200–450 - Enables precise biasing and predictable gain in amplifier feedback networks
V_CE(sat)	≤250 mV @ I_C/I_B = 10 mA/0.5 mA - Minimizes power loss in saturated-switch applications
f_T	250 MHz - Allows stable amplification of signals up to ~100 MHz with adequate gain margin
Noise Figure	1.2–4 dB @ 1 kHz - Meets low-noise requirements for microphone preamps and sensor signal conditioning
P_tot	250 mW @ T_S ≤ 128 °C - Enables compact PCB layout without forced cooling in ambient-temperature environments
C_cb	0.95 pF @ V_CB = 10 V - Limits Miller effect in high-gain common-emitter configurations

Pinout & Package

BC847BWH6327XTSA1 is housed in a RoHS-compliant SOT323 (SC-70) plastic surface-mount package, measuring 2.1 mm × 1.25 mm × 0.95 mm, optimized for automated placement and thermal dissipation in space-constrained designs.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current sink terminal	Provides low-impedance return path; requires direct connection to ground or emitter resistor for bias stability
2 (Base)	Control input node	Accepts current-limited drive (typically 1–10 µA for linear mode); sensitive to ESD due to thin oxide layer
3 (Collector)	Current source output	Delivers amplified load current; must be decoupled with local bypass capacitor when driving reactive loads

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive electronics per stress test requirements (HTOL, TC, HTRB), enabling use in engine control modules and body electronics
Low-noise operation	F = 1.2–4 dB at 1 kHz with 2 kΩ source impedance - directly supports high-fidelity analog front-ends in ADAS sensor interfaces
High h_FE consistency	Group B binning (200–450) reduces need for post-production gain trimming in production-grade amplifiers
Thermal resistance R_thJS	≤60 K/W - enables reliable operation at 125 °C junction temperature with minimal heatsinking in sealed enclosures

Applications

Automotive Sensor Interface

Industrial Signal Conditioning

Use Scenario: Amplifying low-level analog outputs from Hall-effect position sensors in EPS and throttle actuators.

IC Role / Device Role / Timing Role: Linear amplifier stage providing gain and DC offset correction before ADC sampling.

Use Value: Low noise (1.2 dB) and stable h_FE ensure <±0.5% gain error over temperature and lifetime, meeting ASIL-B functional safety signal chain requirements.

Use Scenario: Buffering and level-shifting 4–20 mA loop transmitter outputs in PLC analog I/O modules.

IC Role / Device Role / Timing Role: Active current-source driver with emitter-follower configuration for low-output-impedance signal delivery.

Use Value: V_CE(sat) ≤250 mV minimizes headroom loss, allowing full 20 mA drive into 600 Ω loads at 12 V supply - critical for compliance with IEC 61000-4-4 immunity testing.

Audio Input Stage

Embedded Microcontroller GPIO Driver

Use Scenario: First-stage preamplifier for MEMS microphones in voice-controlled IoT edge devices.

IC Role / Device Role / Timing Role: High-input-impedance common-emitter amplifier with capacitive coupling and DC bias network.

Use Value: f_T = 250 MHz and C_cb = 0.95 pF suppress high-frequency instability, enabling clean 20 kHz bandwidth without oscillation in battery-powered designs.

Use Scenario: Driving optocoupler LEDs or small relays from 3.3 V MCU GPIO pins in smart metering and home automation gateways.

IC Role / Device Role / Timing Role: Digital switch configured in common-emitter mode with base resistor limiting.

Use Value: Guaranteed h_FE ≥200 ensures full saturation at I_B = 10 µA - eliminates need for external Darlington pairs and reduces BOM count by one active component.

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,115 (Nexperia)	SOT323 package, same h_FE B-group (200–450), but V_CEO = 45 V and P_tot = 250 mW match exactly; no AEC-Q101 qualification	Lacks automotive qualification; suitable for industrial and consumer applications only	Select when AEC-Q101 is not required and cost optimization is prioritized
MMBT3904LT1G (ON Semiconductor)	SOT23 package, V_CEO = 40 V, h_FE = 100–300 (standard grade), P_tot = 310 mW, no AEC-Q101	Higher power rating but lower max voltage and gain spread; different footprint requires PCB redesign	Select when higher power handling is needed and SOT23 layout is already established

Compared with BC847BW,115 and MMBT3904LT1G, BC847BWH6327XTSA1 uniquely combines AEC-Q101 qualification, tight h_FE binning, and SOT323 miniaturization-making it the only drop-in solution for space-constrained automotive signal chains requiring zero requalification.

Availability

BC847BWH6327XTSA1 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial 4–20 mA transmitters, audio preamplifiers, and embedded GPIO drivers requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for BC847BWH6327XTSA1 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification infrastructure.

This transistor belongs to Infineon's BC846–BC850 family of AEC-Q101-qualified general-purpose BJTs, engineered specifically for reliability-critical analog signal paths in automotive and industrial environments where gain stability, low noise, and thermal robustness are non-negotiable.

FAQ

Is BC847BWH6327XTSA1 pin-compatible with BC847B,115?

Yes - both use identical SOT323 (SC-70) package with standard pinout: Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector. Mechanical dimensions, solder pad layout, and thermal pad design are fully aligned per JEDEC MO-203-AB, enabling direct PCB footprint reuse without modification.

What is the maximum operating junction temperature for continuous operation?

The absolute maximum junction temperature is 150 °C, and the device maintains specified electrical characteristics up to T_j = 125 °C under steady-state conditions. Derating begins at T_S = 128 °C per the P_tot vs. T_S curve in the datasheet, with R_thJS ≤ 60 K/W ensuring safe thermal margin in typical FR4 PCB layouts.

Does this part support lead-free reflow soldering per JEDEC J-STD-020?

Yes - BC847BWH6327XTSA1 is qualified for lead-free reflow per JEDEC J-STD-020D.2, with peak reflow temperature of 260 °C (10-second duration), compatible with standard SnAgCu (SAC305) profiles and no special pre-bake required for moisture sensitivity level (MSL) 1 rating.

Can BC847BWH6327XTSA1 replace BC847B in existing designs without validation?

No - although electrically and mechanically identical, BC847BWH6327XTSA1 carries AEC-Q101 qualification and tighter process controls. Reuse in automotive applications requires formal change control documentation; industrial applications may proceed with verification of h_FE, V_CE(sat), and thermal behavior under actual operating conditions.

BC847BWH6327XTSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

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

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:: 250 mW

Frequency - Transition:: 250MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SOT323

BC847BWH6327XTSA1 FAQ

1.How can I place an order for BC847BWH6327XTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC847BWH6327XTSA1 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 BC847BWH6327XTSA1 reliable?

The price and inventory of BC847BWH6327XTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847BWH6327XTSA1 is usually 5 days.

3.What payment methods are accepted for BC847BWH6327XTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847BWH6327XTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC847BWH6327XTSA1?

BC847BWH6327XTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC847BWH6327XTSA1 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 BC847BWH6327XTSA1?

For technical support, including BC847BWH6327XTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847BWH6327XTSA1 requirements.

6.How does Aetrix verify that BC847BWH6327XTSA1 is sourced from the original manufacturer or authorized distributors?

All BC847BWH6327XTSA1 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 BC847BWH6327XTSA1 meets industry standards.

7.What is the process for return or replacement of BC847BWH6327XTSA1?

All BC847BWH6327XTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BC847BWH6327XTSA1, 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 BC847BWH6327XTSA1 part is unused and in its original packaging.

Return procedure for BC847BWH6327XTSA1:

1.Submit a request within 90 days.

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

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