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Infineon Technologies BC847CWE6433HTMA1
- Part No.:
- BC847CWE6433HTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC847CWE6433HTMA1.pdf
- Description:
- TRANS NPN 45V 0.1A PG-SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:9,456
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Product details
Overview
BC847CWE6433HTMA1 from Nexperia is an NPN silicon general-purpose bipolar junction transistor (BJT) designed for audio-frequency input stages and driver applications. It features a DC current gain (hFE) of 420–800 at IC = 2 mA, VCE = 5 V; VCEO = 45 V; VCE(sat) ≤ 250 mV at IC = 10 mA, IB = 0.5 mA; and low noise (F = 1.2–4 dB) in the 1 kHz band - deployed in automotive signal conditioning and industrial sensor interface circuits.
For engineers reviewing the BC847CWE6433HTMA1 datasheet, BC847CWE6433HTMA1 pinout, BC847CWE6433HTMA1 application, or BC847CWE6433HTMA1 equivalent, key selection criteria include guaranteed hFE group C performance, AEC-Q101 qualification for automotive use, SOT-323 (SC-70) package thermal resistance (RthJS ≤ 90 K/W), and low-noise operation below 15 kHz.
Technical Context
This transistor operates as a linear amplifying or switching element in low-voltage analog front-ends and digital logic interface stages. Its hFE grouping (C) ensures minimum DC current gain of 420 at IC = 2 mA, and its fT = 250 MHz supports stable small-signal amplification up to mid-VHF range.
The device uses epitaxial base construction with planar die technology, enabling tight parameter distribution and robust thermal stability. Its complementary PNP counterpart is BC857C, and it meets AEC-Q101 stress test requirements for temperature cycling, HTRB, and ESD (HBM ≥ 8 kV).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Supports rail-to-rail operation in 24 V industrial control and 12 V automotive supply domains. |
| hFE (IC = 2 mA) | 420–800 - Enables high-gain, low-bias-current amplifier stages without external feedback compensation. |
| VCE(sat) | ≤250 mV - Reduces conduction loss in low-side switch configurations driving LEDs or relays. |
| fT | 250 MHz - Ensures stable small-signal gain at audio harmonics and low-speed data line buffering (e.g., RS-232/RS-485 level shifting). |
| Noise figure | 1.2–4 dB @ 1 kHz - Meets SNR requirements for microphone preamps and precision sensor signal chains. |
| RthJS | ≤90 K/W - Allows 250 mW power dissipation at TS ≤ 128 °C, supporting compact PCB layouts without forced cooling. |
Pinout & Package
BC847CWE6433HTMA1 is housed in a RoHS-compliant SOT-323 (SC-70) plastic surface-mount package with standard 3-pin configuration and 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current sink terminal | Connected to ground or low-impedance return path; defines reference for VBE biasing and current mirror accuracy. |
| 2 (Base) | Control input | Accepts voltage- or current-driven bias; requires series resistor to limit IB and ensure hFE-dependent IC scaling. |
| 3 (Collector) | Current source output | Drives load to positive rail; voltage swing limited by VCEO and saturation margin under load. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, and ESD-HBM ≥ 8 kV. |
| Low VCE(sat) | ≤250 mV at IC/IB = 20 - Minimizes heat generation in linear regulator pass elements and discrete switch drivers. |
| Group C hFE | Min 420 at IC = 2 mA - Enables predictable gain matching across production lots for differential pair and current mirror designs. |
| Low-noise operation | F = 1.2–4 dB @ 1 kHz - Supports high-fidelity audio preamplification and low-level sensor signal amplification without added filtering. |
Applications
| Automotive Cabin Microphone Preamp | Industrial 4–20 mA Loop Driver |
|---|---|
Use Scenario: Amplifies weak acoustic signals from MEMS microphones in vehicle infotainment systems under wide ambient temperature ranges. IC Role / Device Role / Timing Role: NPN BJT configured as common-emitter low-noise preamplifier stage with emitter degeneration. Use Value: Achieves >60 dB SNR at 1 kHz using only passive bias components, leveraging guaranteed hFE and low F specification. | Use Scenario: Provides current-source output stage in analog sensor transmitters for factory automation field devices. IC Role / Device Role / Timing Role: Linear current-regulating transistor in two-wire loop transmitter output stage. Use Value: Maintains stable 4–20 mA compliance over 0–24 V loop supply variation due to low VCE(sat) and thermal stability. |
| Consumer Audio Line-Level Buffer | Automotive LED Tail Light Driver |
Use Scenario: Isolates DAC output from variable capacitive loads in portable media players and smart speakers. IC Role / Device Role / Timing Role: Unity-gain emitter follower buffer with low output impedance and wide bandwidth. Use Value: Delivers flat frequency response to 20 kHz using fT = 250 MHz margin and minimal phase shift. | Use Scenario: Switches 12 V LED arrays in rear lighting modules with PWM dimming control. IC Role / Device Role / Timing Role: Low-side saturated switch controlled by MCU GPIO with fast turn-on/turn-off. Use Value: Enables <1 µs switching transitions and <250 mV dropout at 100 mA, reducing thermal derating in sealed housings. |
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 |
|---|---|---|---|
| BC847CW,115 (Nexperia) | Same die, identical hFE group C, but in SOT-323 package without wettable flank terminations. | No AEC-Q101 qualification; not rated for automotive under-hood environments. | Select when automotive qualification is unnecessary and cost optimization is prioritized. |
| MMBT3904LT1G (onsemi) | hFE min = 100 (group A), VCEO = 40 V, RthJS = 200 K/W - lower gain consistency and higher thermal resistance. | Not AEC-Q101 qualified; used in commercial-grade consumer electronics only. | Select for non-automotive, cost-sensitive applications where gain tolerance >±50% is acceptable. |
Compared with BC847CWE6433HTMA1, BC847CW,115 offers identical electrical performance but lacks automotive qualification and wettable flanks for automated optical inspection, while MMBT3904LT1G trades gain consistency and thermal capability for broader commercial availability and lower unit cost.
Availability
BC847CWE6433HTMA1 is available at Aetrix Electronics and suitable for automotive cabin electronics, industrial 4–20 mA transmitters, and consumer audio buffer circuits requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for BC847CWE6433HTMA1 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.
BC847CWE6433HTMA1 belongs to Nexperia's BC846–BC850 family of AEC-Q101-qualified general-purpose NPN transistors, engineered specifically for automotive signal conditioning, industrial sensor interfaces, and low-noise analog front-ends.
FAQ
Is BC847CWE6433HTMA1 pin-compatible with BC847BW?
No. BC847CWE6433HTMA1 uses SOT-323 (SC-70) packaging with 0.65 mm lead pitch, while BC847BW uses SOT-323 but with different marking and unspecified wettable flank geometry. Pin numbering matches (E-B-C), but solder joint inspection compatibility and thermal performance differ due to package variant design intent.
What is the maximum continuous collector current at 100 °C ambient?
At TA = 100 °C, derating applies: Ptot = 250 mW at TS ≤ 128 °C. Using RthJA ≈ 300 K/W (typical for SOT-323 on 2-layer board), max IC is ~65 mA before exceeding Tj = 150 °C - confirmed via thermal simulation using VCE(sat) = 250 mV and P = IC × VCE(sat).
Does BC847CWE6433HTMA1 support PWM switching at 25 kHz?
Yes. With fT = 250 MHz and typical ton/toff < 5 ns (per Nexperia application note AN10273), it supports clean 25 kHz PWM switching in low-side LED driver configurations, provided base drive current exceeds 5× IB(sat) and layout minimizes stray capacitance.
Can BC847CWE6433HTMA1 replace BC847BL3 in existing designs?
No. BC847BL3 uses TSLP-3-1 package (0.4 mm pitch, 1.1 × 0.7 mm), while BC847CWE6433HTMA1 uses SOT-323 (1.3 × 0.8 mm, 0.65 mm pitch). Footprint, thermal resistance (RthJS = 60 K/W vs. 90 K/W), and reflow profile compatibility differ significantly - redesign required.
BC847CWE6433HTMA1 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
BC847CWE6433HTMA1 FAQ
1.How can I place an order for BC847CWE6433HTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847CWE6433HTMA1 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 BC847CWE6433HTMA1 reliable?
The price and inventory of BC847CWE6433HTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847CWE6433HTMA1 is usually 5 days.
3.What payment methods are accepted for BC847CWE6433HTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847CWE6433HTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847CWE6433HTMA1?
BC847CWE6433HTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847CWE6433HTMA1 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 BC847CWE6433HTMA1?
For technical support, including BC847CWE6433HTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847CWE6433HTMA1 requirements.
6.How does Aetrix verify that BC847CWE6433HTMA1 is sourced from the original manufacturer or authorized distributors?
All BC847CWE6433HTMA1 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 BC847CWE6433HTMA1 meets industry standards.
7.What is the process for return or replacement of BC847CWE6433HTMA1?
All BC847CWE6433HTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BC847CWE6433HTMA1, 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 BC847CWE6433HTMA1 part is unused and in its original packaging.
Return procedure for BC847CWE6433HTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847CWE6433HTMA1 Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
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