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Nexperia USA Inc. BC850C-QVL
- Part No.:
- BC850C-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BC850C-QVL.pdf
- Description:
- TRANS NPN 45V 0.1A SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,341
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Product details
Overview
BC850C-QVL from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in SOT23 package, rated for 45 V VCEO, 100 mA IC, and DC current gain (hFE) of 420–800 at 2–10 mA collector current. It serves as a low-voltage switching and amplification device in automotive body electronics, sensor interface stages, and LED driver bias circuits.
For engineers reviewing the BC850C-QVL datasheet, BC850C-QVL pinout, BC850C-QVL application, or BC850C-QVL equivalent, key selection criteria include its automotive qualification, SOT23 thermal resistance (500 K/W on FR4), saturation voltage (≤600 mV at 100 mA/5 mA), noise figure (≤4 dB), and complementary PNP pairing with BC860.
Technical Context
This discrete NPN bipolar junction transistor operates in linear or saturated switching modes with base-emitter turn-on voltage of 580–770 mV and transition frequency (fT) of 100 MHz at 10 mA. Its junction-to-ambient thermal resistance (500 K/W) reflects standard FR4 PCB mounting with single-sided copper.
The device meets AEC-Q101 stress test requirements for automotive use, with absolute maximum ratings including 50 V VCBO, 5 V VEBO, 200 mA ICM, and 150 °C Tj. Cut-off currents are specified at 15 nA (ICBO) and 100 nA (IEBO) under defined bias and temperature conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage with base open; defines upper rail limit in 12 V/24 V automotive supply switching. |
| IC | 100 mA continuous - Supports load switching up to ~1 W dissipation at VCE = 10 V in linear mode. |
| hFE | 420–800 @ 2–10 mA - Enables stable current amplification across ambient temperatures (−55 °C to +150 °C). |
| VCE(sat) | ≤600 mV @ IC = 100 mA, IB = 5 mA - Ensures low conduction loss in saturated switch applications. |
| fT | 100 MHz @ VCE = 5 V, IC = 10 mA - Supports audio-frequency amplification and fast digital switching up to ~10 MHz. |
| Rth(j-a) | 500 K/W - Thermal performance baseline for layout design on standard FR4 PCB with tin-plated copper. |
Pinout & Package
SOT23 plastic surface-mounted package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, 3-terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Current-controlled input node; requires ≥5 mA drive for full saturation at 100 mA collector load. |
| 2 | Emitter (E) | Common reference terminal; connects to ground or low-side return path in common-emitter configurations. |
| 3 | Collector (C) | Output current terminal; handles switched loads up to 45 V and 100 mA with ≤600 mV drop in saturation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood and cabin modules per stress test standard; supports PPAP documentation. |
| Low VBE(sat) | ≤900 mV @ IC = 100 mA, IB = 5 mA - Reduces base drive power and enables compatibility with 3.3 V logic controllers. |
| High hFE consistency | Min 420 @ 2 mA, typ 520 @ 2 mA - Minimizes base current variation across production lots and temperature ranges. |
| Low noise figure | ≤4 dB @ 1 kHz, 200 µA - Suitable for low-level signal preamplification in sensor front-ends without added distortion. |
Applications
| Automotive Door Module Switching | Engine Coolant Temperature Sensor Amplifier |
|---|---|
Use Scenario: Driving small solenoids and relays in door lock/unlock actuation circuits. IC Role / Device Role / Timing Role: NPN switch controlling 12 V loads with <10 µs turn-on/turn-off times. Use Value: Low VCE(sat) minimizes heat generation in confined module enclosures; AEC-Q101 ensures reliability over 15-year vehicle life. |
Use Scenario: Amplifying millivolt-level output from NTC thermistors before ADC sampling. IC Role / Device Role / Timing Role: Low-noise common-emitter amplifier stage with fixed gain set by emitter resistor. Use Value: 4 dB noise figure preserves signal integrity; hFE stability across −40 °C to +125 °C maintains calibration accuracy. |
| LED Status Indicator Driver | Body Control Unit Signal Level Shifting |
Use Scenario: Direct-driving 20 mA indicator LEDs from microcontroller GPIO pins. IC Role / Device Role / Timing Role: Saturated switch providing current sink path with minimal voltage overhead. Use Value: VCE(sat) ≤200 mV at 10 mA ensures >3.1 V forward voltage margin for red/green/yellow LEDs at 3.3 V supply. |
Use Scenario: Translating 5 V UART or LIN bus signals to 3.3 V logic levels in gateway ECUs. IC Role / Device Role / Timing Role: Active-low level shifter using common-emitter configuration with pull-up resistors. Use Value: fT ≥100 MHz supports clean edge transitions up to 250 kbps; low Cc (2.5 pF) prevents signal ringing. |
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-Q | Lower VCEO (45 V same), but hFE range narrower (420–800 → 420–630); identical SOT23 footprint and AEC-Q101 rating. | Same automotive switching roles, but lower max hFE reduces margin in high-temperature bias networks. | Select when tighter hFE distribution is preferred for predictable base resistor sizing. |
| BC856A-Q | PNP complement with matching VCEO (65 V), hFE (125–250), and AEC-Q101 qualification; not electrically interchangeable. | Used in complementary emitter-follower or push-pull output stages where dual-polarity control is required. | Choose only for PNP-side implementation in matched pair designs-requires separate circuit redesign. |
Compared with BC850C-QVL, BC847C-Q offers tighter hFE tolerance at the cost of reduced high-current gain headroom, while BC856A-Q provides a qualified PNP counterpart-not a functional replacement-for complementary topologies.
Availability
BC850C-QVL is available at Aetrix Electronics and suitable for automotive body electronics, sensor interface circuits, and LED driver bias networks requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BC850C-QVL 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 efficiency-enhancing components, delivering high-performance, reliable, and scalable solutions for automotive, industrial, and consumer markets.
The BC850C-QVL belongs to Nexperia's AEC-Q101-qualified general-purpose transistor family, engineered specifically for robust, low-power switching and amplification in harsh automotive environments.
FAQ
Is BC850C-QVL pin-compatible with BC847C series transistors?
Yes-BC850C-QVL uses the standard SOT23 pinout (1 = Base, 2 = Emitter, 3 = Collector), matching BC847C, BC848C, and BC850C variants. Mechanical and solder footprint compatibility is confirmed per Nexperia's SOT23 outline drawing (Fig. 6) and reflow footprint (Fig. 7).
What is the maximum allowable power dissipation at 85 °C ambient temperature?
At Tamb = 85 °C, derated power dissipation is 165 mW, calculated using Ptot = 250 mW − [(85 − 25) × (250 mW / 500 K/W)] = 250 mW − 30 mW. This assumes FR4 PCB mounting with single-sided copper and standard footprint per Table 6.
Does BC850C-QVL support operation at −65 °C?
Yes-its specified storage and operating ambient temperature range is −65 °C to +150 °C. Electrical characteristics including hFE and VCE(sat) are characterized down to −55 °C (Fig. 2–4), and AEC-Q101 qualification includes low-temperature operational testing per stress test requirements.
How does the 2G% marking code correlate to the BC850C-QVL part number?
The "2G%" top-side marking decodes as BC850C-Q, where "2G" is the standardized Nexperia device identifier and "%" is a placeholder for manufacturing site code (e.g., "2G1" = production at Nijmegen). This matches Table 4 and is verified against Nexperia's official marking guide PN20230425.
BC850C-QVL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BC850C-QVL FAQ
1.How can I place an order for BC850C-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for BC850C-QVL 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 BC850C-QVL reliable?
The price and inventory of BC850C-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC850C-QVL is usually 5 days.
3.What payment methods are accepted for BC850C-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC850C-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC850C-QVL?
BC850C-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC850C-QVL 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 BC850C-QVL?
For technical support, including BC850C-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC850C-QVL requirements.
6.How does Aetrix verify that BC850C-QVL is sourced from the original manufacturer or authorized distributors?
All BC850C-QVL 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 BC850C-QVL meets industry standards.
7.What is the process for return or replacement of BC850C-QVL?
All BC850C-QVL units undergo pre-shipment inspection (PSI). If there is an issue with BC850C-QVL, 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 BC850C-QVL part is unused and in its original packaging.
Return procedure for BC850C-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC850C-QVL 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.
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SMMBT3904LT1G
onsemi
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MMBT2222A-TP
Micro Commercial Co
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MMBTA06LT1G
onsemi
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MMBT2222ALT1G
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