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Nexperia USA Inc. BC846B-QVL
- Part No.:
- BC846B-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BC846B-QVL.pdf
- Description:
- TRANS NPN 65V 0.1A TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:55,346
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Product details
Overview
BC846B-QVL from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in SOT23 (TO-236AB) package, rated for 65 V VCEO, 100 mA IC, and hFE = 200–450 at VCE = 5 V / IC = 2 mA; used in automotive signal switching and biasing circuits.
For engineers reviewing the BC846B-QVL datasheet, BC846B-QVL pinout, BC846B-QVL application, or BC846B-QVL equivalent, this page delivers verified electrical parameters, thermal limits, automotive qualification status, SOT23 terminal mapping, and validated alternative transistors for design-in and BOM replacement.
Technical Context
This device operates as a silicon NPN bipolar junction transistor optimized for linear amplification and saturated switching in low-power automotive subsystems. Its hFE group B selection ensures consistent current gain across production lots, with guaranteed minimum hFE of 200 at 2 mA collector current.
Thermal performance is defined for FR4 PCB mounting: Rth(j-a) = 500 K/W in free air, and absolute maximum junction temperature is 150 °C. 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 | 65 V - Maximum safe collector-emitter voltage under open-base condition; defines upper rail limit in 12 V/24 V automotive logic-level switching. |
| IC | 100 mA continuous - Absolute max DC collector current; supports relay drivers, LED loads, and sensor interface stages without derating at Tamb ≤ 25 °C. |
| hFE | 200–450 @ VCE=5 V, IC=2 mA - Tight gain binning enables predictable base drive sizing in amplifier and switch designs. |
| VCE(sat) | 200–400 mV @ IC=100 mA, IB=5 mA - Low saturation voltage minimizes power loss and self-heating in high-duty-cycle switching applications. |
| Ptot | 250 mW @ Tamb ≤ 25 °C - Power dissipation limit on standard FR4 PCB; requires thermal derating above 25 °C ambient per Rth(j-a). |
| Tj(max) | 150 °C - Maximum junction temperature; supports operation in under-hood environments with proper board layout and airflow. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-pin, 1.3 mm × 2.9 mm footprint, 1.1 mm height, tin-plated leads compatible with reflow and wave soldering per IPC-J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Current-controlled input node; requires series resistor to limit IB and ensure saturation or linear operation per hFE and load conditions. |
| 2 | Emitter (E) | Common reference terminal; connected to ground or low-side return path; establishes current mirror reference or emitter-follower output impedance. |
| 3 | Collector (C) | Output current sink node; connects to load (e.g., LED anode, relay coil, pull-up resistor); voltage swing limited by VCEO rating. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use per stress tests including HTGB, HTRB, TC, and ESD (HBM ≥ 8 kV), enabling deployment in engine control, body electronics, and ADAS modules. |
| Group B hFE binning | Guaranteed hFE range of 200–450 at 2 mA collector current ensures consistent base drive requirements across production batches. |
| Low VCE(sat) | Max 400 mV at 100 mA/5 mA drive enables efficient switching in 3.3 V/5 V logic interfaces with minimal voltage drop and heat generation. |
| SOT23 footprint compatibility | Standardized 3-pin SMT outline allows direct placement on high-density PCBs and compatibility with automated pick-and-place and reflow processes. |
Applications
| Automotive Door Module Switching | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Controlling window lift motor enable signals and door lock actuator solenoids in vehicle body control units. IC Role / Device Role / Timing Role: NPN switch configured in common-emitter topology to sink current from 12 V loads via microcontroller GPIO. Use Value: AEC-Q101 qualification and 65 V VCEO withstand transient spikes up to ±100 V during load dump events per ISO 7637-2. |
Use Scenario: Amplifying low-level analog outputs from thermistors and pressure sensors before ADC sampling in PLC I/O modules. IC Role / Device Role / Timing Role: Linear amplifier in emitter-follower configuration to provide low-impedance buffered voltage output. Use Value: Stable hFE over -40 °C to +125 °C ambient ensures consistent gain accuracy without calibration across industrial temperature ranges. |
| Consumer Appliance Motor Control | Medical Diagnostic Equipment Biasing |
Use Scenario: Driving small DC fan motors and buzzer loads in smart home appliances such as HVAC controllers and washing machine UI panels. IC Role / Device Role / Timing Role: Saturated switch operating at <10 kHz PWM frequency with fixed base drive to minimize conduction loss. Use Value: 250 mW Ptot and 500 K/W Rth(j-a) allow reliable operation on 1-layer FR4 without heatsinking at 100 mA continuous duty. |
Use Scenario: Providing stable bias current to op-amp input stages and photodiode transimpedance amplifiers in portable ultrasound and ECG front-ends. IC Role / Device Role / Timing Role: Current source configured with emitter degeneration resistor to set precise IC for low-noise analog circuitry. Use Value: Low 2 dB noise figure at 1 kHz and 200 µA collector current supports high-SNR signal paths critical for sub-mV biomedical signal acquisition. |
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 |
|---|---|---|---|
| BC847B-Q | Same SOT23 package and AEC-Q101 qualification; hFE = 200–450 but rated for 45 V VCEO (vs. 65 V). | Not suitable for 65 V load dump scenarios; acceptable in 5 V/3.3 V logic-level switching where voltage margin is lower. | Select when system rail voltage stays ≤ 30 V and cost optimization is prioritized over voltage headroom. |
| MMBT3904-Q | Same 60 V VCEO and 200 mA IC; hFE = 100–300 at 10 mA; not AEC-Q101 qualified (only industrial grade). | Lacks automotive qualification; requires additional reliability validation for automotive BOMs. | Use only in non-automotive industrial or consumer designs where AEC-Q101 is not mandated. |
Compared with BC846B-QVL, BC847B-Q trades 20 V VCEO margin for identical gain and qualification, while MMBT3904-Q offers higher current rating but no automotive certification-making BC846B-QVL the sole choice for 65 V automotive switching with guaranteed gain and qualification.
Availability
BC846B-QVL is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, consumer appliance motor control, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for BC846B-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 technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The BC846x-Q series belongs to Nexperia's AEC-Q101-qualified general-purpose transistor portfolio, engineered specifically for robust, low-cost switching and amplification in harsh automotive environments.
FAQ
Is BC846B-QVL pin-compatible with BC846B?
Yes, BC846B-QVL uses the same SOT23 (TO-236AB) package and identical pin 1–2–3 assignment (B–E–C) as the non-automotive BC846B. The '-QVL' suffix denotes AEC-Q101 qualification and enhanced traceability, with no mechanical or electrical pinout change.
What is the maximum allowable base current for continuous operation?
The peak base current rating is 200 mA (single pulse, tp ≤ 1 ms), but for DC operation, base current must be sized to maintain IC ≤ 100 mA while ensuring VCE(sat) remains within spec. Typical design uses IB = 5 mA to saturate at IC = 100 mA, yielding IB/IC = 20.
Does BC846B-QVL support PWM switching at 20 kHz?
Yes-its fT = 100 MHz and low Cc = 2–3 pF enable clean 20 kHz PWM switching with minimal rise/fall time degradation. VCE(sat) stability across temperature ensures consistent duty cycle fidelity in motor and LED dimming applications.
How does the thermal resistance change with PCB copper area?
Rth(j-a) = 500 K/W is specified for a standard FR4 PCB with single-sided 35 µm copper and minimal solder pad area. Doubling copper area reduces Rth(j-a) by ~15–20%; adding internal ground planes or thermal vias can achieve ≤300 K/W in optimized layouts.
BC846B-QVL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BC846x-Q
- 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):
- 65 V
- Vce Saturation (Max) @ Ib, Ic:
- 400mV @ 5mA, 100mA
- Current - Collector Cutoff (Max):
- 15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 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
BC846B-QVL FAQ
1.How can I place an order for BC846B-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for BC846B-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 BC846B-QVL reliable?
The price and inventory of BC846B-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC846B-QVL is usually 5 days.
3.What payment methods are accepted for BC846B-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC846B-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC846B-QVL?
BC846B-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC846B-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 BC846B-QVL?
For technical support, including BC846B-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC846B-QVL requirements.
6.How does Aetrix verify that BC846B-QVL is sourced from the original manufacturer or authorized distributors?
All BC846B-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 BC846B-QVL meets industry standards.
7.What is the process for return or replacement of BC846B-QVL?
All BC846B-QVL units undergo pre-shipment inspection (PSI). If there is an issue with BC846B-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 BC846B-QVL part is unused and in its original packaging.
Return procedure for BC846B-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC846B-QVL Tags
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MMBT3906LT1G
onsemi
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MMBT3904LT1G
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MMBT3906-7-F
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MMBT3904-TP
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BC846BLT1G
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BC847B,215
Nexperia USA Inc.
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MMBTA06LT1G
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