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Nexperia USA Inc. BC847AQC-QZ
- Part No.:
- BC847AQC-QZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
BC847AQC-QZ.pdf
- Description:
- TRANS NPN 45V 0.1A DFN1412D-3
- Quantity:
- Payment:
- Shipping:
Inventory:790
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Product details
Overview
BC847AQC-Q from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in a leadless DFN1412D-3 (SOT8009) package, rated for 45 V VCEO, 100 mA IC, and DC current gain (hFE) of 110–220 at VCE = 5 V, IC = 2 mA. It serves as a compact switching or amplification device in space-constrained automotive and industrial PCBs where side-wettable flanks enable AOI-compatible solder joint inspection.
For engineers reviewing the BC847AQC-Q datasheet, BC847AQC-Q pinout, BC847AQC-Q application, or BC847AQC-Q equivalent, this page delivers verified package dimensions, thermal derating curves, saturation voltage behavior across temperature, junction-to-ambient thermal resistance (348 K/W on 35 µm FR4), and AEC-Q101 qualification status - all critical for high-reliability signal switching and biasing designs.
Technical Context
This NPN bipolar junction transistor operates with open-base collector-emitter breakdown voltage of 45 V and emitter-base breakdown voltage of 6 V, supporting robust operation in 12 V/24 V automotive subsystems. Its low 0.48 mm body height and 1.4 mm × 1.2 mm footprint reduce board area by >40% versus SOT23 while maintaining full parametric compliance under −55 °C to +150 °C ambient conditions.
The device exhibits VCE(sat) ≤ 400 mV at IC = 100 mA / IB = 5 mA and fT = 100 MHz, enabling reliable small-signal amplification up to mid-VHF range and fast-switching performance in LED drivers and sensor interface stages. Thermal impedance data confirms stable transient response under pulsed loads up to 200 mA with 1 ms pulse width.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage before breakdown in open-base configuration; enables use in 36 V automotive supply rails with margin. |
| IC | 100 mA continuous - Rated collector current defining steady-state switching capacity; supports driving small relays or logic-level indicators. |
| hFE | 110–220 at VCE = 5 V, IC = 2 mA - Confirmed DC current gain range ensuring predictable base drive requirements in linear and saturated operation. |
| VCE(sat) | ≤ 400 mV at IC = 100 mA, IB = 5 mA - Low saturation voltage minimizes power loss and self-heating during switching, critical for thermally dense layouts. |
| Ptot | 360 mW on 35 µm FR4 PCB - Total power dissipation limit defining maximum allowable static power under standard board conditions. |
| Rth(j-a) | 348 K/W - Junction-to-ambient thermal resistance on standard FR4; used to calculate temperature rise (ΔT = P × Rth) for thermal design validation. |
| fT | 100 MHz - Transition frequency confirming usable bandwidth for audio preamplifiers, oscillator biasing, and digital signal conditioning. |
Pinout & Package
DFN1412D-3 (SOT8009) is a 3-terminal, leadless, ultra-thin surface-mount package measuring 1.4 mm × 1.2 mm × 0.48 mm with side-wettable flanks for automated optical inspection. Its bottom-exposed copper terminals require precise stencil-defined solder paste deposition per IPC-7351B footprint guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal accepting forward-biased current to initiate conduction; requires current-limiting resistor in series for safe biasing. |
| 2 | Emitter (E) | Current return path tied to circuit ground or low-side reference; forms common-emitter configuration with collector output. |
| 3 | Collector (C) | Output terminal sourcing current to load; connected to positive rail in low-side switch topology or active load in amplifier stage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, body electronics, and ADAS sensor interfaces. |
| Side-wettable flanks (SWF) | Enables 100% automated optical inspection (AOI) of solder joints without X-ray; eliminates hidden voids and cold-solder defects in high-volume SMT lines. |
| 0.48 mm package height | Reduces vertical stack height in multi-layer modules (e.g., telematics units, infotainment displays), easing mechanical clearance constraints. |
| 1.4 mm × 1.2 mm footprint | Occupies 42% less board area than SOT23-3, freeing routing channels and improving trace density in compact MCU peripheral circuits. |
| Low thermal resistance | 348 K/W junction-to-ambient on standard FR4 allows ≥85 °C ambient operation at full 100 mA load without heatsinking. |
Applications
| Automotive Door Module Switching | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Controlling window lift motor direction via H-bridge driver stage in door control unit. IC Role / Device Role / Timing Role: Low-side NPN switch enabling PWM-controlled current flow through motor windings. Use Value: VCE(sat) ≤ 400 mV ensures <100 mW conduction loss at 100 mA, minimizing thermal stress in sealed module housing. |
Use Scenario: Amplifying weak analog output from MEMS pressure sensor before ADC sampling. IC Role / Device Role / Timing Role: Common-emitter amplifier providing fixed-gain signal boosting with minimal offset drift. Use Value: hFE stability across −40 °C to +125 °C maintains consistent gain calibration without software compensation. |
| Space-Constrained IoT Node Biasing | Consumer Audio Preamp Stage |
Use Scenario: Providing stable bias current to RF front-end LNA in wearable BLE transceiver. IC Role / Device Role / Timing Role: Constant-current source configured in emitter-follower topology. Use Value: Low VBE tempco (−2 mV/K) ensures <±5 mV bias shift over operating range, preserving LNA linearity. |
Use Scenario: Building discrete Class-A headphone amplifier stage in portable DAC/headphone combo. IC Role / Device Role / Timing Role: Small-signal voltage amplifier with resistive load and capacitor-coupled input/output. Use Value: fT = 100 MHz supports flat frequency response up to 20 kHz with <0.1% THD+N at 1 Vpp output. |
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 |
|---|---|---|---|
| BC847BW,115 (Nexperia) | SOT323 package (2.1 mm × 1.25 mm); no side-wettable flanks; hFE 110–220 same grade; Ptot = 250 mW. | Lacks AOI support and automotive qualification; limited to commercial-grade consumer boards. | Select when AOI is unnecessary and board space permits larger footprint; not recommended for automotive production. |
| MMBT3904LT1G (onsemi) | SOT23-3 package; VCEO = 40 V; hFE 100–300; AEC-Q101 qualified; Rth(j-a) = 375 K/W. | Higher thermal resistance increases junction temperature rise by ~10 °C at same load; slightly lower voltage rating. | Acceptable for non-critical 12 V systems where 5 V margin suffices; verify thermal margin in enclosed enclosures. |
Compared with BC847AQC-Q, BC847BW offers cost savings but forfeits AOI capability and automotive reliability, while MMBT3904LT1G provides broader vendor availability yet requires tighter thermal design due to higher Rth(j-a) and reduced VCEO headroom.
Availability
BC847AQC-Q is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and space-constrained IoT edge devices requiring stable component supply with guaranteed long-term manufacturability.
Supply support for BC847AQC-Q 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 BC847xQC-Q series belongs to Nexperia's AEC-Q101-qualified general-purpose transistor product line, engineered specifically for automotive signal switching and amplification where miniaturization, AOI compatibility, and extended temperature operation are mandatory.
FAQ
What is the maximum allowable junction temperature for BC847AQC-Q?
The absolute maximum junction temperature (Tj) is 150 °C, as defined in the Absolute Maximum Ratings table. Operation above this threshold risks permanent degradation of hFE, increased leakage, and bond wire failure. Derating must follow Fig. 1 power curves - e.g., at 100 °C ambient, maximum continuous power drops to ~225 mW on 35 µm FR4.
Does BC847AQC-Q support reflow soldering with standard lead-free profiles?
Yes - the DFN1412D-3 package is qualified for JEDEC J-STD-020-compliant lead-free reflow, with peak temperature up to 260 °C. Figure 17 specifies the recommended solder land pattern (1.3 mm × 0.4 mm pads, 0.8 mm pitch), and stencil thickness of 0.1 mm ensures optimal paste volume for side-wettable flank wetting.
How does hFE vary with temperature and collector current?
Per Fig. 4, hFE peaks near 10 mA and declines at both low and high IC; at 25 °C it ranges 110–220, but drops ~25% at −55 °C and ~35% at 150 °C. Designers must size base resistors using worst-case hFE (110) at max operating temperature to guarantee saturation under all conditions.
Is BC847AQC-Q pin-compatible with other BC847x variants in the same package?
Yes - all BC847xQC-Q variants (A/B/C grades) share identical DFN1412D-3 pinout (B-E-C), marking layout, and thermal/mechanical specifications. Only hFE range differs: A = 110–220, B = 200–450, C = 420–800. Substitution requires verifying gain requirements in the target circuit.
BC847AQC-QZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XDFN Exposed Pad
- 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:
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN1412D-3
BC847AQC-QZ FAQ
1.How can I place an order for BC847AQC-QZ through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847AQC-QZ 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 BC847AQC-QZ reliable?
The price and inventory of BC847AQC-QZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847AQC-QZ is usually 5 days.
3.What payment methods are accepted for BC847AQC-QZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847AQC-QZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847AQC-QZ?
BC847AQC-QZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847AQC-QZ 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 BC847AQC-QZ?
For technical support, including BC847AQC-QZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847AQC-QZ requirements.
6.How does Aetrix verify that BC847AQC-QZ is sourced from the original manufacturer or authorized distributors?
All BC847AQC-QZ 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 BC847AQC-QZ meets industry standards.
7.What is the process for return or replacement of BC847AQC-QZ?
All BC847AQC-QZ units undergo pre-shipment inspection (PSI). If there is an issue with BC847AQC-QZ, 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 BC847AQC-QZ part is unused and in its original packaging.
Return procedure for BC847AQC-QZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847AQC-QZ Tags
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MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
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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
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MMBT2222ALT1G
onsemi
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