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Diodes Incorporated BC847BSQ-7-F
- Part No.:
- BC847BSQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BC847BSQ-7-F.pdf
- Description:
- TRANS 2NPN 45V 100MA SOT-363
- Quantity:
- Payment:
- Shipping:
Inventory:7,837
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Product details
Overview
BC847BSQ-7-F from Diodes Incorporated is a dual NPN small-signal transistor in SOT363 package, rated for 45 V VCEO, 100 mA IC, and 200 mW power dissipation, with hFE = 200–450 at 2 mA/5 V, and AEC-Q101 qualified for automotive switching and audio amplifier circuits.
For engineers reviewing the BC847BSQ-7-F datasheet, BC847BSQ-7-F pinout, BC847BSQ-7-F application, or BC847BSQ-7-F equivalent, key selection criteria include dual-NPN matching tolerance, VCEO margin for 12 V/24 V automotive rails, thermal resistance (625 °C/W), RoHS/Green compliance, and SOT363 footprint compatibility with high-density PCB layouts.
Technical Context
This device integrates two matched NPN transistors in a single ultra-small SOT363 package, enabling compact dual-stage amplification or complementary switching functions without inter-device parameter variation. Its fT = 100 MHz supports AF and low-speed digital signal conditioning up to ~10 MHz.
The transistor features tight DC current gain distribution (hFE 200–450), low VCE(sat) (≤400 mV at 100 mA/5 mA drive), and robust breakdown ratings (VCBO = 50 V, VEBO = 6 V), making it suitable for bias-stable amplifier stages and logic-level interface switching in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Supports operation across 12 V and 24 V automotive supply rails with safety margin |
| IC | 100 mA - Sufficient for driving relays, LEDs, or pre-driver stages in embedded control |
| hFE | 200–450 - Enables predictable DC biasing in Class-A amplifier or switch saturation design |
| fT | 100 MHz - Allows stable small-signal amplification up to audio band and low-speed digital edges |
| RθJA | 625 °C/W - Requires minimal copper pour on FR4 for thermal management in ambient ≤85 °C |
| AEC-Q101 | Qualified - Meets stress-test requirements for automotive under-hood and infotainment applications |
Pinout & Package
Package: SOT363 - 6-pin ultra-small surface-mount plastic package (2.15 mm × 2.10 mm × 0.95 mm), matte tin terminations, moisture sensitivity level 1, UL 94V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter of Transistor 1 | Low-impedance return path for first NPN; tied to local ground or bias network |
| 2 | Base of Transistor 1 | Current-controlled input node; requires series resistor for safe TTL/CMOS drive |
| 3 | Collector of Transistor 1 | Active output node; connects to load (e.g., relay coil, LED anode) and supply rail |
| 4 | Emitter of Transistor 2 | Independent emitter terminal for second NPN; enables dual-channel isolation |
| 5 | Base of Transistor 2 | Second independent control input; allows synchronous or differential drive |
| 6 | Collector of Transistor 2 | Second active output; supports redundant, mirrored, or push-pull configurations |
Key Features
| Feature | Design Value |
|---|---|
| Dual matched NPN topology | Enables compact, thermally coupled amplifier pairs or dual-switch logic without discrete pairing |
| VCEO ≥ 45 V | Permits direct use in 24 V automotive systems with >2× voltage headroom against transients |
| AEC-Q101 qualification | Validates reliability for automotive temperature cycling, HTRB, and ESD stress per IATF16949 process |
| SOT363 footprint | Reduces board area by ~50% vs. SO-8 or SC-70 dual packages while maintaining solder joint reliability |
| Halogen- and antimony-free "Green" | Meets EU ELV and OEM material declarations requiring <900 ppm Br/Cl and <1000 ppm Sb |
Applications
| Automotive Door Module | Industrial Sensor Interface |
|---|---|
Use Scenario: Controlling window lift motors and lock actuators via microcontroller GPIOs in door control units. IC Role / Device Role / Timing Role: Dual NPN switch providing isolated, current-amplified drive for 12 V inductive loads. Use Value: Matched hFE ensures consistent turn-on timing between left/right door functions; AEC-Q101 rating guarantees operation at −40 °C to +125 °C junction. | Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., RTD, thermistor) before ADC sampling. IC Role / Device Role / Timing Role: Emitter-follower configuration for low-output-impedance voltage buffering with minimal phase shift. Use Value: fT = 100 MHz preserves signal fidelity up to 20 kHz; low VBE(on) (580–700 mV) minimizes offset error in precision DC paths. |
| Consumer Audio Preamp | Smart Home Relay Driver |
Use Scenario: First-stage amplification in battery-powered portable speaker line-input circuits. IC Role / Device Role / Timing Role: Common-emitter Class-A amplifier with fixed bias network and emitter degeneration. Use Value: Tight hFE spread reduces gain mismatch in stereo channels; 200 mW PD supports continuous 10 mW output into 32 Ω loads. | Use Scenario: Driving 5 V/12 V reed relays in smart lighting and HVAC control panels. IC Role / Device Role / Timing Role: Saturation-mode switch with base resistor limiting IBM to ≤200 mA peak. Use Value: VCE(sat) ≤ 400 mV at 100 mA ensures <40 mW conduction loss; SOT363 allows dense relay-array PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BPDW1T2G | Same hFE range and VCEO, but in SOT-363 with different marking (K1F vs. 3A); identical thermal specs and AEC-Q101 status | No functional difference; used interchangeably in automotive designs where Diodes and ON Semi BOMs coexist | Select when sourcing flexibility across authorized distributors is required without redesign |
| MMDT3904-7-F | Lower VCEO (40 V), same IC and hFE; not AEC-Q101 qualified; RθJA = 650 °C/W | Limited to industrial or consumer use below 12 V; unsuitable for automotive under-hood deployment | Choose only for cost-sensitive non-automotive applications where qualification is not mandated |
Compared with BC847BSQ-7-F, BC847BPDW1T2G offers identical electrical and qualification specs with alternate branding, while MMDT3904-7-F trades automotive reliability for lower cost and slightly reduced voltage margin-making the former a drop-in alternative and the latter a non-qualified fallback.
Availability
BC847BSQ-7-F is available at Aetrix Electronics and suitable for automotive door modules, industrial sensor interfaces, and smart home relay drivers requiring stable component supply, AEC-Q101 compliance, and SOT363 footprint consistency.
Supply support for BC847BSQ-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and consumer markets since 1964.
The BC847BSQ belongs to Diodes' AEC-Q101-qualified small-signal transistor family, engineered specifically for space-constrained, thermally demanding automotive and industrial control applications requiring dual-transistor integration.
FAQ
Is BC847BSQ-7-F pin-compatible with BC847C variants?
No. While both share the SOT363 package, BC847BSQ has hFE = 200–450, whereas BC847C variants specify hFE = 420–800. Substituting without circuit validation risks overdrive or insufficient gain in bias-critical applications like linear amplifiers.
What is the maximum allowable PCB trace width for SOT363 thermal relief on 1 oz copper?
For optimal thermal performance per datasheet Note 5, use minimum recommended pad layout with ≥0.65 mm trace width per pin and ≥1.3 mm thermal pad extension under the package body. Wider traces beyond 1.0 mm yield diminishing returns due to epoxy mold compound thermal resistance.
Does BC847BSQ-7-F support pulsed operation above 100 mA?
Yes-peak pulse collector current ICM is rated at 200 mA with duty cycle ≤1% and pulse width ≤10 µs. Exceeding these limits risks localized junction overheating even with adequate average power dissipation.
Can BC847BSQ-7-F be used in common-base configuration?
Yes-its VCBO = 50 V and low CCBO = 2.0–3.0 pF make it suitable for RF coupling and high-frequency current buffers in common-base mode, though fT characterization is specified only for common-emitter test conditions.
BC847BSQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- 2 NPN (Dual)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 45V
- Vce Saturation (Max) @ Ib, Ic:
- 400mV @ 5mA, 100mA
- Current - Collector Cutoff (Max):
- 20nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 2mA, 5V
- Power - Max:
- 200mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
BC847BSQ-7-F FAQ
1.How can I place an order for BC847BSQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847BSQ-7-F 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 BC847BSQ-7-F reliable?
The price and inventory of BC847BSQ-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847BSQ-7-F is usually 5 days.
3.What payment methods are accepted for BC847BSQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847BSQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847BSQ-7-F?
BC847BSQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847BSQ-7-F 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 BC847BSQ-7-F?
For technical support, including BC847BSQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847BSQ-7-F requirements.
6.How does Aetrix verify that BC847BSQ-7-F is sourced from the original manufacturer or authorized distributors?
All BC847BSQ-7-F 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 BC847BSQ-7-F meets industry standards.
7.What is the process for return or replacement of BC847BSQ-7-F?
All BC847BSQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BC847BSQ-7-F, 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 BC847BSQ-7-F part is unused and in its original packaging.
Return procedure for BC847BSQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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