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Nexperia USA Inc. BC846AQCZ
- Part No.:
- BC846AQCZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
BC846AQCZ.pdf
- Description:
- TRANS 65V 0.1A DFN1412D-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,479
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Product details
Overview
BC846AQC from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in a DFN1412D-3 (SOT8009) leadless package, rated for 65 V VCEO, 100 mA IC, and DC current gain (hFE) of 110–220 at VCE = 5 V and IC = 2 mA. It serves as a compact, high-voltage switching and amplification device in space-constrained automotive and industrial PCBs with side-wettable flanks for AOI-compatible solder joint inspection.
For engineers reviewing the BC846AQC datasheet, BC846AQC pinout, BC846AQC application, or BC846AQC equivalent, this page delivers verified package dimensions, thermal derating curves, saturation voltage behavior across temperature, noise figure (10 dB), and AEC-Q101 qualification status - all critical for automotive-grade discrete selection and layout validation.
Technical Context
This transistor operates as a single-element NPN bipolar junction device optimized for low-profile, high-reliability surface-mount applications. Its DFN1412D-3 package features side-wettable flanks enabling automated optical inspection of solder joints, and its 0.48 mm body height supports ultra-thin board designs.
It exhibits VCEO = 65 V, VCB0 = 80 V, and VEB0 = 6 V absolute maximum ratings, with thermal resistance Rth(j-a) of 348 K/W on 35 µm FR4 and 278 K/W on 70 µm FR4. The device maintains hFE stability across −55 °C to +150 °C ambient, with VBE decreasing ~2 mV/K.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 65 V - Maximum collector-emitter voltage before breakdown; enables use in 48 V automotive supply rails and industrial 24–48 V control circuits. |
| IC | 100 mA continuous - Sustained collector current rating; suitable for driving small relays, LEDs, and logic-level interface loads. |
| hFE | 110–220 at VCE = 5 V, IC = 2 mA - Confirmed DC current gain range; ensures predictable base drive requirements in linear and switching modes. |
| VCE(sat) | ≤400 mV at IC = 100 mA, IB = 5 mA - Low saturation voltage minimizes power loss and self-heating in high-duty-cycle switching. |
| Ptot | 360 mW (35 µm FR4) / 450 mW (70 µm FR4) - Total power dissipation limits define thermal design margins for PCB copper weight and layout. |
| fT | 100 MHz - Transition frequency confirms usable bandwidth for audio-frequency amplification and digital signal conditioning up to ~10 MHz. |
| Package | DFN1412D-3 (SOT8009) - 1.4 mm × 1.2 mm × 0.48 mm leadless package with side-wettable flanks for AOI-capable reflow assembly. |
Pinout & Package
DFN1412D-3 (SOT8009) is a 3-terminal, leadless, ultra-thin plastic package with side-wettable flanks (SWF), 0.8 mm pitch, and 1.4 mm × 1.2 mm footprint. Its low 0.48 mm profile and exposed thermal pad (not electrically connected) support high-density routing and thermal management on thin PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal for forward-biased junction; requires ≤5 mA base drive for full saturation at 100 mA collector load. |
| 2 | Emitter (E) | Current return path; internally connected to substrate; must be tied to lowest potential node in common-emitter configuration. |
| 3 | Collector (C) | Main output current path; rated for 65 V blocking; connects to load or higher-potential rail in switching applications. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics under temperature cycling, humidity, and mechanical stress tests. |
| Side-wettable flanks (SWF) | Enables automated optical inspection (AOI) of solder fillets without X-ray; improves process yield and field reliability in high-volume SMT lines. |
| 0.48 mm package height | Reduces board stack height in portable and modular electronics; compatible with conformal coating and tight enclosure clearances. |
| 65 V VCEO rating | Supports operation across 12 V, 24 V, and 48 V automotive and industrial bus systems with margin against transients and inductive kickback. |
| Low VCE(sat) | Ensures <100 mW conduction loss at 100 mA, reducing thermal load and eliminating need for heatsinking in most PCB-mounted applications. |
Applications
| Automotive Body Control Module | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Driving LED indicators and small solenoids in door latch, mirror, and lighting control units. IC Role / Device Role / Timing Role: Discrete NPN switch controlling 20–80 mA loads with fast turn-on/turn-off response. Use Value: AEC-Q101 qualification ensures long-term reliability under vibration and thermal cycling; SWF enables AOI traceability in Tier-1 production. |
Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., thermistors, RTDs) into microcontroller ADC inputs. IC Role / Device Role / Timing Role: Emitter-follower amplifier providing low-output-impedance buffering without loading the sensor. Use Value: Stable hFE over −40 °C to +125 °C ensures consistent gain; low noise figure (10 dB) preserves signal integrity in precision measurement paths. |
| Portable Medical Device Power Control | Smart Home Actuator Driver |
|
Use Scenario: Enabling/disabling power to low-power subsystems (e.g., display backlight, buzzer) in battery-operated diagnostic tools. IC Role / Device Role / Timing Role: Low-leakage, high-VCEO switch isolating 3.3 V or 5 V domains during sleep mode. Use Value: ICBO ≤15 nA at 30 V ensures minimal standby current drain; 0.48 mm height fits within slim handheld enclosures. |
Use Scenario: Driving 12 V relay coils and small DC motors in smart thermostats and motorized valve controllers. IC Role / Device Role / Timing Role: Saturated-switch transistor delivering up to 100 mA with <400 mV VCE(sat) to minimize coil heating. Use Value: 360–450 mW power handling allows sustained duty cycles without derating; DFN package simplifies automated assembly in high-mix consumer production. |
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 |
|---|---|---|---|
| BC846BQC | Higher hFE range (200–450 vs. 110–220); identical VCEO, IC, and package | Better suited for low-base-drive designs where gain consistency at low IC is critical | Select BC846BQC when base current budget is constrained or when operating near IC = 2 mA |
| MMBT3904DW | SC-88 (SOT-363) dual package; single-device hFE 100–300; VCEO = 40 V (lower than 65 V) | Limited to ≤40 V systems; dual configuration saves board area but lacks AEC-Q101 rating | Choose only for non-automotive, cost-sensitive, dual-transistor layouts where voltage margin is sufficient |
Compared with BC846BQC, BC846AQC offers tighter hFE tolerance for predictable base drive in production; versus MMBT3904DW, it provides higher voltage capability and automotive qualification-critical for safety-critical 48 V systems.
Availability
BC846AQC is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, portable medical devices, and smart home actuator drivers requiring stable component supply, AEC-Q101 compliance, and AOI-ready packaging.
Supply support for BC846AQC 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 essential semiconductors, with leadership in logic, discretes, and MOSFETs for automotive, industrial, and mobile markets.
The BC846xQC series targets space-constrained, high-reliability applications demanding AEC-Q101 qualification, side-wettable flanks, and stable gain across wide temperature ranges - especially in automotive ECUs and industrial edge nodes.
FAQ
Is BC846AQC pin-compatible with BC846BQC?
Yes - both share identical DFN1412D-3 (SOT8009) package, pin 1 (base), pin 2 (emitter), pin 3 (collector), and mechanical footprint. They differ only in hFE binning (A: 110–220, B: 200–450), making them direct drop-in replacements where gain variation is acceptable.
What is the maximum allowable PCB copper thickness for thermal performance?
Thermal resistance data specifies two mounting conditions: 35 µm (Rth(j-a) = 348 K/W) and 70 µm (278 K/W) single-sided FR4 copper. Using ≥70 µm copper improves power handling by ~20%, supporting full 360 mW dissipation at ambient ≤75 °C without forced cooling.
Does BC846AQC support reflow soldering per JEDEC J-STD-020?
Yes - the DFN1412D-3 package is qualified for standard lead-free reflow profiles (peak 260 °C, 20–40 sec above 217 °C). Figure 13 in the datasheet provides the recommended stencil and land pattern, including 0.1 mm stencil thickness and 0.4 mm solder mask opening for side-wettable flank inspection.
Can BC846AQC replace BC846AW in a design?
No - BC846AW uses SOT323 (SC-70) package with different footprint, thermal performance, and no side-wettable flanks. While electrical specs overlap, the DFN1412D-3 package of BC846AQC requires PCB redesign and AOI process adaptation; it is not a mechanical or assembly drop-in replacement.
BC846AQCZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BC846xQB
- Package/Case:
- 3-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- -
- 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:
- 110 @ 2mA, 5V
- Power - Max:
- 360 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN1412D-3
BC846AQCZ FAQ
1.How can I place an order for BC846AQCZ through Aetrix?
Please submit a Request for Quotation (RFQ) for BC846AQCZ 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 BC846AQCZ reliable?
The price and inventory of BC846AQCZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC846AQCZ is usually 5 days.
3.What payment methods are accepted for BC846AQCZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC846AQCZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC846AQCZ?
BC846AQCZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC846AQCZ 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 BC846AQCZ?
For technical support, including BC846AQCZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC846AQCZ requirements.
6.How does Aetrix verify that BC846AQCZ is sourced from the original manufacturer or authorized distributors?
All BC846AQCZ 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 BC846AQCZ meets industry standards.
7.What is the process for return or replacement of BC846AQCZ?
All BC846AQCZ units undergo pre-shipment inspection (PSI). If there is an issue with BC846AQCZ, 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 BC846AQCZ part is unused and in its original packaging.
Return procedure for BC846AQCZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC846AQCZ Tags
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Nexperia USA Inc.
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