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Nexperia USA Inc. BC846SH-QX
- Part No.:
- BC846SH-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BC846SH-QX.pdf
- Description:
- TRANS 2NPN 65V 100MA 6-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,215
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Product details
Overview
BC846SH-QX from Nexperia is an AEC-Q101-qualified NPN/NPN general-purpose double transistor in SOT363 (SC-88) package, rated for 65 V VCEO, 100 mA IC, and 175 °C junction temperature, used for space-constrained automotive signal switching and amplification.
For engineers reviewing the BC846SH-QX datasheet, BC846SH-QX pinout, BC846SH-QX application, or BC846SH-QX equivalent, this page delivers verified electrical parameters, dual-transistor isolation behavior, thermal derating curves, automotive qualification status, and validated SOT363 footprint data - all critical for high-reliability board-level design and BOM consolidation.
Technical Context
This dual NPN transistor integrates two electrically isolated, closely matched gain transistors (hFE = 110 min at 2 mA) in a single SOT363 package, eliminating mutual interference while enabling compact push-pull or differential pair configurations. Its low VCEsat (200–300 mV at 100 mA/5 mA drive) and low Cc (1.2 pF typical) support fast switching and minimal signal loading.
Qualified to AEC-Q101 with Tj up to 175 °C and specified across −55 °C to +175 °C ambient, it supports under-hood automotive modules where thermal stability and long-term reliability are mandatory. The device operates with open-base VCEO = 65 V and VCBO = 80 V, meeting ISO 7637-2 transient robustness prerequisites when properly clamped.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 65 V - Maximum collector-emitter voltage before breakdown; defines safe operating range in 12 V/24 V automotive supply rails with transients. |
| IC | 100 mA - Continuous collector current per transistor; supports LED drivers, sensor interface stages, and logic-level signal buffering. |
| hFE | 110 min at VCE = 5 V, IC = 2 mA - Ensures predictable DC gain for biasing and analog amplification without gain binning. |
| VCEsat | 200–300 mV at IC = 100 mA, IB = 5 mA - Enables low-loss switching in power control nodes with <100 mW dissipation per transistor. |
| Cc | 1.2 pF typical at VCB = 10 V - Limits high-frequency signal coupling between channels and preserves bandwidth in RF-adjacent circuits. |
| Tj max | 175 °C - Junction temperature rating enables operation in engine control units, transmission modules, and other high-ambient zones. |
| Rth(j-a) | 375 K/W per device on FR4 PCB - Defines thermal derating slope: power must be reduced by ~2.7 mW/°C above 25 °C ambient. |
Pinout & Package
SOT363 (SC-88) 6-pin TSSOP package: 2.1 mm × 1.25 mm × 0.95 mm body, 0.65 mm lead pitch, tin-plated leads compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E1 | Emitter of Transistor 1 - Common reference node for TR1; connects to ground or low-side load return path. |
| 2 | B1 | Base of Transistor 1 - Input control terminal for TR1; requires current-limited drive to avoid saturation delay. |
| 3 | C2 | Collector of Transistor 2 - High-side output node for TR2; routes switched current to VCC or pull-up network. |
| 4 | E2 | Emitter of Transistor 2 - Reference node for TR2; may be tied to E1 for common-emitter configuration or left independent. |
| 5 | B2 | Base of Transistor 2 - Independent control input for TR2; enables asynchronous dual-channel switching. |
| 6 | C1 | Collector of Transistor 1 - Primary output node for TR1; drives loads connected between C1 and VCC. |
Key Features
| Feature | Design Value |
|---|---|
| No mutual interference between transistors | Electrically isolated die structure ensures TR1 switching does not induce crosstalk or timing skew in TR2 operation. |
| Closely matched current gain | hFE tracking within same lot minimizes gain mismatch (<±10%) in differential or mirrored configurations. |
| Low collector-emitter saturation voltage | VCEsat ≤ 300 mV at full 100 mA load reduces conduction loss and self-heating in continuous-duty applications. |
| AEC-Q101 qualification | Stress-tested for automotive environments including temperature cycling, HTRB, and ESD per JESD22-A114, ensuring field reliability. |
| Reduced board space vs. discrete singles | Single SOT363 replaces two SOT23 devices, cutting PCB area by >40% and reducing assembly cost via single placement step. |
Applications
| Automotive Body Control Module (BCM) | Engine Control Unit (ECU) Sensor Interface |
|---|---|
Use Scenario: Driving resistive and inductive loads such as door lock actuators, mirror adjust motors, and HVAC damper solenoids. IC Role / Device Role / Timing Role: Dual NPN switch providing independent low-side drive paths with integrated thermal margin for intermittent 100 mA pulses. Use Value: Eliminates need for two separate transistors and associated base resistors, reducing component count and improving layout density in space-constrained BCM PCBs. |
Use Scenario: Level-shifting and conditioning analog signals from oxygen sensors, knock sensors, and throttle position sensors before ADC input. IC Role / Device Role / Timing Role: Low-noise, low-capacitance amplifier stage with matched hFE to maintain signal fidelity across dual-sensor channels. Use Value: Maintains consistent gain and offset across paired sensor inputs, improving diagnostic accuracy and reducing calibration complexity in multi-sensor ECUs. |
| Infotainment System Power Management | ADAS Camera Module Bias Control |
Use Scenario: Sequencing power-on/off for display backlight LEDs, audio amplifiers, and USB port regulators in head-unit subsystems. IC Role / Device Role / Timing Role: Dual-channel enable switch controlling VCC distribution with independent enable pins for staggered startup sequencing. Use Value: Prevents inrush current stacking during cold start by decoupling enable timing, avoiding brown-out in 12 V rail-sensitive infotainment systems. |
Use Scenario: Providing stable bias current to CMOS image sensor analog front-end (AFE) blocks and lens actuator drivers in surround-view cameras. IC Role / Device Role / Timing Role: Precision current source using emitter-degeneration and matched hFE to deliver repeatable 1–5 mA bias across dual AFE channels. Use Value: Ensures identical analog performance and noise floor between stereo camera pairs, critical for depth estimation and object detection algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-NPN switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847SH-Q | Higher hFE (200 min), same VCEO/IC, identical SOT363 package | Better suited for low-drive applications (e.g., microcontroller GPIO direct drive); less margin for gain variation at high temperature | Select when higher DC gain is required and thermal drift compensation is implemented externally. |
| MBT3904DW1T1G | Onsemi part; VCEO = 40 V, IC = 200 mA, hFE = 100 min, SOT-363 | Limited to 40 V systems; higher current rating but lower breakdown margin for 24 V automotive transients | Choose only for non-transient 12 V subsystems where peak current exceeds 100 mA and voltage stress remains below 40 V. |
Compared with BC846SH-QX, BC847SH-Q offers higher gain for low-base-current designs but reduced thermal hFE stability, while MBT3904DW1T1G trades voltage robustness for current capacity - making BC846SH-QX optimal for 65 V-rated, thermally demanding automotive signal switching where gain matching and transient immunity are prioritized.
Availability
BC846SH-QX is available at Aetrix Electronics and suitable for automotive body control modules, engine control units, infotainment power sequencing, and ADAS camera bias circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BC846SH-QX 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 BC846SH-QX belongs to Nexperia's AEC-Q101-qualified small-signal transistor portfolio, engineered specifically for space- and thermal-constrained automotive electronics where dual-channel integration, gain matching, and high-temperature operation are mandatory.
FAQ
Is BC846SH-QX pin-compatible with BC846B or BC847B in SOT-23?
No. BC846SH-QX uses a 6-pin SOT363 package with interleaved emitter/base/collector terminals for dual transistors, whereas BC846B/BC847B are single-transistor SOT-23 devices with 3-pin configuration. Direct replacement requires PCB redesign and routing changes due to different pin count, pitch, and internal topology.
What is the maximum allowable pulsed collector current for BC846SH-QX?
The peak collector current ICM is 200 mA per transistor under single-pulse conditions (tp ≤ 1 ms). This rating assumes duty cycle ≤ 2% and proper thermal management; exceeding 200 mA risks secondary breakdown or bond wire fusing even if average power remains within Ptot limits.
Does BC846SH-QX support reverse-battery protection in automotive applications?
No. As an NPN/NPN double transistor, BC846SH-QX lacks intrinsic reverse-polarity blocking capability. It must be used downstream of dedicated protection circuitry (e.g., ideal diode controllers or P-channel MOSFETs) to prevent damage during −14 V jump-start events or battery reversal.
How does the 175 °C junction rating translate to PCB layout requirements?
To sustain 175 °C junction temperature, the PCB must provide ≥375 K/W thermal resistance from junction to ambient. This requires ≥20 mm² of 35 µm copper pour connected to pins 1, 4, and exposed pad (if present), plus airflow or heatsinking in sealed enclosures - otherwise derate power linearly above 25 °C ambient per Fig. 1.
BC846SH-QX 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:
- 270mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
BC846SH-QX FAQ
1.How can I place an order for BC846SH-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BC846SH-QX 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 BC846SH-QX reliable?
The price and inventory of BC846SH-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC846SH-QX is usually 5 days.
3.What payment methods are accepted for BC846SH-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC846SH-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC846SH-QX?
BC846SH-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC846SH-QX 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 BC846SH-QX?
For technical support, including BC846SH-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC846SH-QX requirements.
6.How does Aetrix verify that BC846SH-QX is sourced from the original manufacturer or authorized distributors?
All BC846SH-QX 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 BC846SH-QX meets industry standards.
7.What is the process for return or replacement of BC846SH-QX?
All BC846SH-QX units undergo pre-shipment inspection (PSI). If there is an issue with BC846SH-QX, 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 BC846SH-QX part is unused and in its original packaging.
Return procedure for BC846SH-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC846SH-QX Tags
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