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Infineon Technologies BC847CWH6433XTMA1
- Part No.:
- BC847CWH6433XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC847CWH6433XTMA1.pdf
- Description:
- TRANS NPN 45V 0.1A PG-SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:3,511
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Product details
Overview
BC847CWH6433XTMA1 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. It is used in discrete amplifier bias networks and signal-level switching in automotive body control modules.
For engineers reviewing the BC847CWH6433XTMA1 datasheet, BC847CWH6433XTMA1 pinout, BC847CWH6433XTMA1 application, or BC847CWH6433XTMA1 equivalent, key selection criteria include guaranteed hFE group C performance, AEC-Q101 qualification for automotive use, SOT323 (SC-70) package thermal resistance (RthJS ≤ 90 K/W), and verified low-noise operation below 15 kHz.
Technical Context
This transistor operates as a linear amplifying device with fixed-emitter bias topology in analog front-end circuits. Its hFE grouping (C) ensures consistent current amplification across production lots, while its fT = 250 MHz supports stable gain up to mid-VHF frequencies under small-signal conditions.
The device uses epitaxial planar technology with a triple-diffused structure, enabling low VCE(sat) and high breakdown margins. Its complementary PNP counterpart is BC857C, and it meets RoHS compliance with lead-free termination per JEDEC J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Supports rail voltages up to 36 V in automotive 12 V systems with margin |
| hFE (IC = 2 mA) | 420–800 - Enables precise biasing without external gain compensation in Class-A preamps |
| VCE(sat) | ≤250 mV @ IC/IB = 10/0.5 mA - Minimizes power loss in saturated-switching mode |
| fT | 250 MHz - Ensures stable small-signal gain beyond audio bandwidth into RF front-end filtering |
| Noise figure | 1.2–4 dB @ 1 kHz - Meets low-noise requirements for microphone preamplifier input stages |
| RthJS | ≤90 K/W - Allows 250 mW dissipation at TS ≤ 128 °C in SOT323 footprint |
Pinout & Package
BC847CWH6433XTMA1 is housed in a SOT323 (SC-70) plastic surface-mount package with gull-wing leads, optimized for high-density PCB layouts and automated reflow assembly. Thermal pad is not present; heat transfer occurs via leads and PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current sink terminal | Reference node for bias network; connects to ground or emitter degeneration resistor |
| 2 (Base) | Control input | Receives current-limited drive; requires series resistor to limit IB and prevent saturation overshoot |
| 3 (Collector) | Current source output | Drives load or next stage; voltage swing limited by VCEO and supply rail |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including temperature cycling and humidity testing |
| Low VCE(sat) | Reduces conduction loss in active-load configurations and improves efficiency in discrete LDO pass elements |
| Group C hFE | Guarantees minimum hFE ≥ 420 at 2 mA, simplifying production binning and reducing calibration overhead |
| RoHS-compliant | Lead-free terminations meet EU Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1 |
Applications
| Automotive Body Control Unit | USB-C Power Delivery Monitor |
|---|---|
Use Scenario: Discrete current mirror for LED driver feedback in door module lighting control. IC Role / Device Role / Timing Role: NPN current sensing element in high-side current mirror configuration. Use Value: Stable hFE matching enables ±3% current tracking across temperature (−40°C to +125°C). | Use Scenario: Voltage-controlled switch for VBUS discharge path during USB-C port disconnect. IC Role / Device Role / Timing Role: Low-saturation switch controlling 5 V discharge resistor network. Use Value: VCE(sat) ≤ 250 mV ensures <12.5 mW dissipation at 50 mA discharge current. |
| Industrial Sensor Signal Conditioning | Audio Line Driver Interface |
Use Scenario: Transimpedance amplifier stage for photodiode current-to-voltage conversion. IC Role / Device Role / Timing Role: Low-noise NPN input transistor in common-emitter configuration with emitter degeneration. Use Value: 1.2 dB noise figure at 1 kHz enables sub-1 µV RMS input-referred noise in 20 kHz bandwidth. | Use Scenario: Single-ended line driver for headphone amplifier output stage. IC Role / Device Role / Timing Role: Class-A biased emitter follower providing low-impedance output buffer. Use Value: hFE ≥ 420 ensures stable bias current delivery with <0.5% variation over 10:1 load impedance range. |
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 SOT323-3L package with different marking and tape/reel orientation | No functional difference; differs only in packaging logistics and reel coding | Select when standard reel format (115 vs. XTMA1) aligns with SMT line feeder setup |
| MMBT3904LT1G (onsemi) | hFE min = 100 (group A), VCEO = 40 V, RthJS = 200 K/W in SOT23 - lower gain consistency and higher thermal resistance | Not AEC-Q101 qualified; suitable for commercial-grade consumer audio, not automotive | Choose only for cost-sensitive non-automotive designs where hFE spread and thermal margin are acceptable |
Compared with BC847CWH6433XTMA1, BC847CW,115 offers identical electrical behavior with logistics compatibility, while MMBT3904LT1G trades AEC-Q101 compliance and hFE consistency for broader commercial availability at lower unit cost.
Availability
BC847CWH6433XTMA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C power management, and audio signal conditioning requiring stable component supply and long-term lifecycle support.
Supply support for BC847CWH6433XTMA1 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 essential semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets.
The BC846–BC850 family targets discrete analog signal conditioning and switching in space-constrained, thermally demanding environments, emphasizing AEC-Q101 reliability and tight parametric grouping for production scalability.
FAQ
What is the maximum continuous collector current for BC847CWH6433XTMA1?
The absolute maximum continuous collector current (IC) is 100 mA at TA = 25 °C. Derating applies above 71 °C ambient: power dissipation drops linearly to zero at 150 °C junction temperature. Peak pulsed current is 200 mA for tp ≤ 10 ms with duty cycle ≤ 2%.
Is BC847CWH6433XTMA1 suitable for linear amplifier applications?
Yes - its low noise figure (1.2–4 dB), high hFE consistency, and stable fT make it appropriate for Class-A and Class-AB small-signal amplifiers. Verified performance includes <0.5% THD+N at 1 kHz with 2 mA bias and 5 V supply in common-emitter configuration.
Does BC847CWH6433XTMA1 have a built-in ESD protection diode?
No - this is a bare-die NPN transistor without integrated ESD protection. External TVS or series resistors are required for I/O pins exposed to human contact or cable interfaces. The device itself withstands ≥2 kV HBM per JESD22-A114, but system-level protection must be implemented externally.
How does the SOT323 package affect thermal performance compared to SOT23?
The SOT323 (SC-70) package has lower thermal mass and smaller copper area than SOT23, resulting in higher RthJS (90 K/W vs. 240 K/W for BC846–BC850 in SOT23). However, BC847CWH6433XTMA1's die design and internal construction compensate with optimized metallization, enabling 250 mW dissipation at TS = 128 °C.
BC847CWH6433XTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
BC847CWH6433XTMA1 FAQ
1.How can I place an order for BC847CWH6433XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847CWH6433XTMA1 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 BC847CWH6433XTMA1 reliable?
The price and inventory of BC847CWH6433XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847CWH6433XTMA1 is usually 5 days.
3.What payment methods are accepted for BC847CWH6433XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847CWH6433XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847CWH6433XTMA1?
BC847CWH6433XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847CWH6433XTMA1 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 BC847CWH6433XTMA1?
For technical support, including BC847CWH6433XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847CWH6433XTMA1 requirements.
6.How does Aetrix verify that BC847CWH6433XTMA1 is sourced from the original manufacturer or authorized distributors?
All BC847CWH6433XTMA1 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 BC847CWH6433XTMA1 meets industry standards.
7.What is the process for return or replacement of BC847CWH6433XTMA1?
All BC847CWH6433XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BC847CWH6433XTMA1, 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 BC847CWH6433XTMA1 part is unused and in its original packaging.
Return procedure for BC847CWH6433XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847CWH6433XTMA1 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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