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Infineon Technologies BC 847CW B6327
- Part No.:
- BC 847CW B6327
- Manufacturer:
- Infineon Technologies
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC 847CW B6327.pdf
- Description:
- TRANS NPN 45V 0.1A PG-SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:9,481
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Product details
Overview
BC847CW B6327 from Infineon Technologies is an NPN silicon general-purpose bipolar junction transistor in SOT323 package, rated for 45 V VCEO, 100 mA IC, and 250 mW Ptot at TS ≤ 124 °C. It delivers high DC current gain (hFE = 420–520 at IC = 2 mA), low VCE(sat) (≤ 250 mV @ IC = 10 mA / IB = 0.5 mA), and low noise (F = 1.2–4 dB @ 1 kHz) - optimized for audio-frequency input stages and driver circuits in automotive and industrial signal conditioning.
For engineers reviewing the BC847CW B6327 datasheet, BC847CW B6327 pinout, BC847CW B6327 application, or BC847CW B6327 equivalent, key selection criteria include its AEC-Q101 qualification, SOT323 footprint compatibility with space-constrained PCBs, hFE group C performance consistency, and verified thermal resistance (RthJS ≤ 105 K/W) for reliable operation in ambient temperatures up to 150 °C.
Technical Context
The BC847CW B6327 operates as a discrete NPN amplifier/switch with fixed emitter-base and collector-base junction structures, supporting linear amplification and saturated switching modes. Its hFE group C designation guarantees minimum DC current gain of 420 at IC = 2 mA and VCE = 5 V, and typical transition frequency fT of 250 MHz ensures stable small-signal gain up to mid-VHF range.
Designed for AF applications between 30 Hz and 15 kHz, it exhibits low 1/f noise (Vn ≤ 0.135 µV @ 10–50 Hz, IC = 200 µA) and tight parameter distribution across production lots. Complementary PNP pairing is supported by BC857CW, sharing identical SOT323 packaging and thermal profile.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - supports rail voltages up to 36 V DC in automotive supply environments with margin |
| IC | 100 mA - sufficient for driving LEDs, small relays, or pre-amplifier stage loads |
| hFE (Group C) | 420–520 @ IC = 2 mA - enables predictable biasing without gain binning in production |
| VCE(sat) | ≤ 250 mV @ IC = 10 mA / IB = 0.5 mA - minimizes conduction loss in switching applications |
| fT | 250 MHz typ. - preserves bandwidth for audio harmonics and fast transient response |
| RthJS | ≤ 105 K/W - allows 250 mW dissipation with ≤26.3 °C junction-to-solder-point rise at TS = 124 °C |
| Package | SOT323 - 2.1 mm × 1.25 mm footprint, compatible with standard pick-and-place and reflow profiles |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL and temperature cycling |
Pinout & Package
BC847CW B6327 uses the SOT323 (SC-70) surface-mount plastic package with gull-wing leads, designed for automated assembly and thermal reliability in high-density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Reference node for base-emitter voltage control; connects to ground or low-impedance return path |
| 2 (Base) | B | Current-controlled input node; requires series resistor to limit IB and ensure saturation or linear operation |
| 3 (Collector) | C | Output current sink node; interfaces with load (e.g., LED anode, relay coil, next-stage input) |
Key Features
| Feature | Design Value |
|---|---|
| High hFE Group C | Guaranteed 420–520 gain at IC = 2 mA enables stable bias networks without trimming resistors |
| Low VCE(sat) | ≤ 250 mV reduces power loss and self-heating during switching, improving efficiency in battery-powered drivers |
| Low-noise AF performance | F = 1.2–4 dB @ 1 kHz with 2 kΩ source impedance meets audio preamp SNR requirements |
| AEC-Q101 qualification | Validated for automotive under-hood and infotainment applications with extended temperature and reliability testing |
| SOT323 thermal design | RthJS ≤ 105 K/W supports continuous 250 mW operation at board temperature ≤124 °C |
Applications
| Automotive Cabin Sensors | Industrial Signal Conditioning |
|---|---|
Use Scenario: Amplifying weak analog signals from temperature, pressure, or humidity sensors in vehicle cabin modules. IC Role / Device Role / Timing Role: NPN small-signal amplifier in common-emitter configuration with fixed-gain bias network. Use Value: High hFE and low noise preserve signal integrity over 30 Hz–15 kHz bandwidth, reducing ADC quantization error. | Use Scenario: Level-shifting and buffering 0–5 V analog outputs from PLC analog I/O cards before isolation stages. IC Role / Device Role / Timing Role: Linear amplifier with emitter-follower output for low-output-impedance drive into optocoupler inputs. Use Value: Low VBE(on) (580–770 mV) and tight hFE tolerance minimize offset and gain drift across temperature. |
| Consumer Audio Preamps | Power Supply Enable Switching |
Use Scenario: First-stage gain block in portable headphone amplifiers and microphone preamplifiers. IC Role / Device Role / Timing Role: Low-noise NPN transistor in common-emitter topology with bypassed emitter resistor. Use Value: Equivalent noise voltage ≤ 0.135 µV (10–50 Hz) ensures clean audio reproduction without audible hiss. | Use Scenario: Enabling/disabling auxiliary 3.3 V or 5 V rails in embedded systems using microcontroller GPIO. IC Role / Device Role / Timing Role: Saturated switch controlling PMOS gate drive or enable pin of LDO regulator. Use Value: VCE(sat) ≤ 250 mV limits voltage drop and heat generation during sustained ON-state operation. |
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 |
|---|---|---|---|
| BC847C,215 (Nexperia) | Same SOT323 package, hFE group C (420–800), but lower RthJS (90 K/W) and higher Ptot (300 mW) | Higher power handling supports longer pulse loads; not AEC-Q101 qualified | Select when thermal headroom >250 mW is required and automotive qualification is unnecessary |
| MMBT3904LT1G (onsemi) | SOT23 package, hFE 100–300 (no group coding), VCEO = 40 V, RthJS ≈ 200 K/W | Larger footprint; lower gain consistency and higher VCE(sat) (300 mV typ.) | Select for legacy SOT23 designs where pin compatibility outweighs gain/noise performance |
Compared with BC847C,215, BC847CW B6327 trades 50 mW power margin for AEC-Q101 compliance and tighter hFE distribution; versus MMBT3904LT1G, it delivers superior gain stability, lower saturation voltage, and smaller SOT323 footprint - critical for automotive and space-constrained industrial designs.
Availability
BC847CW B6327 is available at Aetrix Electronics and suitable for automotive cabin sensors, industrial signal conditioning, consumer audio preamps, and power supply enable switching requiring stable component supply across long-lifecycle programs.
Supply support for BC847CW B6327 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 and discrete devices.
The BC847CW B6327 belongs to Infineon's BC846–BC850 family of AEC-Q101-qualified NPN transistors, engineered specifically for high-reliability analog signal amplification and switching in automotive and industrial environments.
FAQ
Is BC847CW B6327 RoHS compliant and lead-free?
Yes. BC847CW B6327 is Pb-free and fully RoHS compliant per EU Directive 2011/65/EU. The device uses a matte tin-plated lead finish and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) for unlimited floor life at ≤30 °C/60% RH.
What is the maximum operating junction temperature and how is it enforced?
The absolute maximum junction temperature is 150 °C. This limit is maintained via thermal design constraints: total power dissipation must not exceed 250 mW when solder point temperature (TS) remains ≤124 °C, corresponding to RthJS ≤105 K/W under steady-state conditions.
Can BC847CW B6327 replace BC847B or BC847A in existing designs?
Yes, with functional verification. BC847CW B6327 shares identical SOT323 package, pinout, and voltage ratings with BC847B/A, but offers higher hFE (420–520 vs. 200–450 for B, 110–220 for A). Gain increase may require minor bias resistor adjustment to avoid overdrive or thermal runaway in linear applications.
Does BC847CW B6327 support pulsed operation beyond its DC power rating?
Yes. Permissible pulse load follows Ptot(max)/Ptot(DC) = ƒ(tp) curves in the datasheet, allowing up to 2× DC power for tp ≤ 10 ms (duty cycle ≤ 2%) - validated for relay coil driving and digital enable pulses in automotive ECUs.
BC 847CW B6327 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 420 @ 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
BC 847CW B6327 FAQ
1.How can I place an order for BC 847CW B6327 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC 847CW B6327 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 BC 847CW B6327 reliable?
The price and inventory of BC 847CW B6327 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC 847CW B6327 is usually 5 days.
3.What payment methods are accepted for BC 847CW B6327?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC 847CW B6327 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC 847CW B6327?
BC 847CW B6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC 847CW B6327 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 BC 847CW B6327?
For technical support, including BC 847CW B6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC 847CW B6327 requirements.
6.How does Aetrix verify that BC 847CW B6327 is sourced from the original manufacturer or authorized distributors?
All BC 847CW B6327 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 BC 847CW B6327 meets industry standards.
7.What is the process for return or replacement of BC 847CW B6327?
All BC 847CW B6327 units undergo pre-shipment inspection (PSI). If there is an issue with BC 847CW B6327, 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 BC 847CW B6327 part is unused and in its original packaging.
Return procedure for BC 847CW B6327:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC 847CW B6327 Tags
-
MMBT3906LT1G
onsemi
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MMBT3904-7-F
Diodes Incorporated
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MMBT3904LT1G
onsemi
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MMBT3906-7-F
Diodes Incorporated
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MMBT3904-TP
Micro Commercial Co
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MMBT2222A-7-F
Diodes Incorporated
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BC846BLT1G
onsemi
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BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
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MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
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