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Nexperia USA Inc. BC846S-QZ
- Part No.:
- BC846S-QZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BC846S-QZ.pdf
- Description:
- TRANS 2NPN 65V 100MA 6-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,395
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Product details
Overview
BC846S-QZ from Nexperia is an AEC-Q101-qualified NPN double transistor in SOT363-3 (SC-88) package, delivering two independent general-purpose switching transistors with VCEO = 65 V, IC = 100 mA per transistor, and hFE ≥ 110 at 2 mA/5 V. It enables compact dual-channel signal amplification or discrete logic-level switching in automotive body control modules.
For engineers reviewing the BC846S-QZ datasheet, BC846S-QZ pinout, BC846S-QZ application, or BC846S-QZ equivalent, key selection criteria include per-transistor breakdown voltage, thermal resistance (Rth(j-a) = 568 K/W), AEC-Q101 qualification status, and TSSOP6 footprint compatibility with high-density PCB layouts.
Technical Context
This dual NPN transistor integrates two electrically isolated silicon epitaxial planar devices in a single monolithic die within a thermally optimized SOT363-3 package. Each transistor operates independently with no mutual interference, supporting separate biasing and load connections.
It is characterized for automotive ambient temperature range (−65 °C to +150 °C), qualified per AEC-Q101 stress test requirements, and specified with junction-to-ambient thermal resistance of 568 K/W (per transistor) on FR4 PCB - enabling reliable operation in under-hood environments without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 65 V - Maximum collector-emitter voltage before breakdown; supports 24 V automotive supply rails with margin. |
| IC | 100 mA - Continuous collector current per transistor; suitable for driving LEDs, relays, or small MOSFET gates. |
| hFE | ≥110 @ 2 mA/5 V - DC current gain ensures stable low-current switching with minimal base drive overhead. |
| VCE(sat) | ≤300 mV @ 100 mA/5 mA - Low saturation voltage reduces conduction loss and self-heating in switching applications. |
| Rth(j-a) | 568 K/W - Thermal resistance per transistor defines power derating slope; limits usable power to ~220 mW at 25 °C ambient. |
| Tj(max) | 150 °C - Maximum junction temperature enables operation in engine bay or power distribution units. |
Pinout & Package
SOT363-3 (TSSOP6) plastic surface-mounted package with 6 leads, 1.3 mm × 2.2 mm footprint, 0.65 mm pitch, and exposed pad not present. Designed for reflow soldering per IPC-J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter of TR1 | Low-impedance return path for first transistor; connects directly to ground or emitter resistor network. |
| 2 | Base of TR1 | Control input for TR1; requires current-limited drive (e.g., 5–10 kΩ series resistor from MCU GPIO). |
| 3 | Collector of TR2 | High-side output node for second transistor; routes to load (e.g., LED anode or relay coil). |
| 4 | Emitter of TR2 | Return path for TR2; may be tied to common ground or configured as emitter-follower for level shifting. |
| 5 | Base of TR2 | Independent control input for TR2; allows asynchronous switching of two loads from one IC footprint. |
| 6 | Collector of TR1 | Primary output node for TR1; used for active-low switching or small-signal amplification stages. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Qualified for automotive use per stress test standard; eliminates need for additional reliability screening in Tier-1 BOMs. |
| Electrically isolated transistors | No crosstalk or shared substrate effects between TR1 and TR2; enables independent timing and biasing. |
| Space-saving dual configuration | Replaces two discrete SOT23 transistors, reducing board area by ~40% and assembly cost via single placement. |
| Low VBE (580–700 mV) | Enables direct interfacing with 3.3 V logic without level-shifting; reduces base drive power in battery-powered systems. |
| FR4-compatible thermal performance | Ptot = 220 mW per transistor on standard PCB; supports continuous operation in ambient up to 85 °C. |
Applications
| Automotive Door Module | LED Driver for Interior Lighting |
|---|---|
Use Scenario: Controlling window lift motors, mirror actuators, and door lock solenoids in centralized body control unit. IC Role / Device Role / Timing Role: Discrete NPN switch for 12 V load interface; provides galvanic isolation between MCU GPIO and inductive loads. Use Value: Dual configuration allows simultaneous control of two actuators using one footprint; AEC-Q101 rating ensures compliance with ISO 16750-2 pulse testing. |
Use Scenario: Driving multiple 20 mA white LEDs in cabin map lights, footwell illumination, and dashboard backlighting. IC Role / Device Role / Timing Role: Constant-current switch with fixed base bias; operates in linear region for analog dimming or saturated switching for PWM control. Use Value: Low VCE(sat) minimizes heat generation in sealed enclosures; hFE stability across −40 °C to +85 °C ensures consistent brightness. |
| Industrial Sensor Interface | Power Supply Enable Circuit |
Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., thermistor networks or Hall-effect sensors) into ADC inputs. IC Role / Device Role / Timing Role: Emitter-follower amplifier for impedance matching; TR1 and TR2 used separately for dual-channel signal conditioning. Use Value: Matched hFE and VBE characteristics ensure channel-to-channel gain consistency; SOT363-3 footprint simplifies routing in space-constrained sensor nodes. |
Use Scenario: Enabling/disabling auxiliary 5 V or 3.3 V LDO outputs based on system sleep/wake state in embedded controllers. IC Role / Device Role / Timing Role: High-side or low-side enable switch; TR1 controls main rail, TR2 manages backup domain or RTC supply. Use Value: Independent pinning allows separate control logic; VCEO = 65 V supports wide-input buck converters up to 48 V industrial supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847S-Q | hFE = 200–450 (vs. 110–220 for BC846S-Q); same VCEO, IC, and package. | Better suited for low-base-drive applications (e.g., micro-power wake-up circuits); higher gain increases sensitivity to leakage. | Select BC847S-Q when higher DC gain is required and base current must be minimized below 1 µA. |
| MBT3904DW1T1G | Lower VCEO = 40 V; hFE = 100–300; qualified to AEC-Q101 but with different thermal specs (Rth(j-a) = 625 K/W). | Limited to 12 V systems only; less thermal margin in enclosed housings; identical pinout but lower power handling. | Choose MBT3904DW1T1G only for cost-sensitive 12 V non-under-hood applications where 65 V margin is unnecessary. |
Compared with BC846S-Q, BC847S-Q offers higher gain at same voltage/current ratings - advantageous for ultra-low-drive designs - while MBT3904DW1T1G trades voltage headroom and thermal performance for lower unit cost in benign environments.
Availability
BC846S-QZ is available at Aetrix Electronics and suitable for automotive body electronics, interior LED lighting systems, and industrial sensor interface modules requiring stable component supply with AEC-Q101 assurance.
Supply support for BC846S-QZ 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 discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
The BC846S-QZ belongs to Nexperia's AEC-Q101-qualified general-purpose transistor family, engineered specifically for space-constrained automotive subsystems requiring dual-channel discrete switching without performance compromise.
FAQ
Is BC846S-QZ pin-compatible with BC846B or BC847B dual transistors?
No. BC846S-QZ uses SOT363-3 (6-pin TSSOP) pinout: E1-B1-C2-E2-B2-C1. BC846B/BC847B variants are typically in SOT353 (SC-70) or SOT363 (non–3 suffix) packages with different pin assignments. Always verify pin mapping using Figure 7 in the official Nexperia datasheet before PCB layout.
Can BC846S-QZ replace two individual BC846B transistors in a design?
Yes, functionally - but only if the PCB footprint matches SOT363-3 and the circuit accommodates its specific pin order (E1-B1-C2-E2-B2-C1). Electrical parameters are matched per transistor, but thermal coupling differs: total device Ptot = 300 mW vs. 2 × 220 mW for discrete parts. Derate accordingly in thermally constrained designs.
What is the maximum allowable base current for continuous operation?
The absolute maximum peak base current is 200 mA (single pulse, tp ≤ 1 ms), but continuous IB must be limited to ensure IC ≤ 100 mA and junction temperature stays ≤150 °C. For safe DC operation at 25 °C ambient, IB should not exceed 5 mA per transistor - verified by VCE(sat) ≤ 300 mV at IC/IB = 20.
Does BC846S-QZ support wave soldering?
Yes - Nexperia provides dedicated wave soldering footprint data (Figure 9) for SOT363-3. Recommended process uses 245 °C max solder temperature, 5 s max contact time, and flux type compatible with halogen-free assembly. Avoid thermal shock by preheating to 100–120 °C before wave exposure.
BC846S-QZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- 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):
- 65V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 5mA, 100mA
- Current - Collector Cutoff (Max):
- 15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 110 @ 2mA, 5V
- Power - Max:
- 200mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
BC846S-QZ FAQ
1.How can I place an order for BC846S-QZ through Aetrix?
Please submit a Request for Quotation (RFQ) for BC846S-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 BC846S-QZ reliable?
The price and inventory of BC846S-QZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC846S-QZ is usually 5 days.
3.What payment methods are accepted for BC846S-QZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC846S-QZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC846S-QZ?
BC846S-QZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC846S-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 BC846S-QZ?
For technical support, including BC846S-QZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC846S-QZ requirements.
6.How does Aetrix verify that BC846S-QZ is sourced from the original manufacturer or authorized distributors?
All BC846S-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 BC846S-QZ meets industry standards.
7.What is the process for return or replacement of BC846S-QZ?
All BC846S-QZ units undergo pre-shipment inspection (PSI). If there is an issue with BC846S-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 BC846S-QZ part is unused and in its original packaging.
Return procedure for BC846S-QZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC846S-QZ Tags
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