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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Bipolar Transistor Arrays

Nexperia USA Inc. BC846BPN-QX

Name: BC846BPN-QX
Brand: Nexperia USA Inc.
SKU: BC846BPN-QX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC846BPN-QX

Manufacturer:: Nexperia USA Inc.

Category:: Bipolar Transistor Arrays

Package:: 6-TSSOP, SC-88, SOT-363

Datasheet:: BC846BPN-QX.pdf

Description:: TRANS NPN/PNP 65V 100MA 6-TSSOP

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Product details

Overview

BC846BPN-QX from Nexperia is an AEC-Q101-qualified NPN/PNP matched transistor pair in a SOT363-3 (TSSOP6) package, rated for 65 V V_CEO, 100 mA I_C, and featuring h_FE of 200–450 (NPN) and 200–450 (PNP) at 2 mA. It enables compact dual-polarity switching in automotive body control modules, LED driver bias networks, and level-shifting interfaces where mutual isolation and thermal tracking are critical.

For engineers reviewing the BC846BPN-QX datasheet, BC846BPN-QX pinout, BC846BPN-QX application, or BC846BPN-QX equivalent, this device serves as a space-saving, automotive-grade solution for complementary switching, current mirror configurations, and discrete logic-level translation-requiring verification of polarity-specific saturation voltages, gain matching tolerance, and PCB thermal derating per FR4 footprint.

Technical Context

This dual-transistor device integrates electrically isolated NPN (TR1) and PNP (TR2) silicon die in a single 6-pin TSSOP package, with no shared junctions or substrate coupling. Each transistor operates independently under its own polarity conventions: TR1 uses positive V_CE/I_C, TR2 uses negative V_CE/I_C, and both share identical limiting values including 65 V V_CEO, 100 mA I_C, and 200 mW per-transistor P_tot.

The device delivers tightly matched DC current gain (h_FE) across temperature (−55 °C to 150 °C), low collector capacitance (1.9–2.3 pF), and low V_CEsat (200–300 mV at I_C = 100 mA), enabling high-efficiency, low-noise operation in bias-stable analog and digital interface circuits without cross-talk or thermal runaway risk.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	65 V - Maximum safe collector-emitter voltage before breakdown; sets upper rail limit for 12 V/24 V automotive switching.
I_C	100 mA - Continuous collector current rating; supports medium-current loads like relay coils or LED strings.
h_FE (TR1, NPN)	200–450 @ V_CE = 5 V, I_C = 2 mA - Enables predictable base drive sizing for linear or saturated operation.
h_FE (TR2, PNP)	200–450 @ V_CE = −5 V, I_C = −2 mA - Matches NPN gain for balanced push-pull or differential pair design.
V_CEsat (TR1)	200–300 mV @ I_C = 100 mA, I_B = 5 mA - Minimizes conduction loss and self-heating in high-duty-cycle switches.
C_c	1.9–2.3 pF - Low collector capacitance preserves high-frequency response up to f_T ≥ 100 MHz.
P_tot (per device)	300 mW @ T_amb ≤ 25 °C on FR4 - Defines maximum combined dissipation before thermal derating applies.

Pinout & Package

SOT363-3 (TSSOP6) plastic surface-mount package: 1.7 mm × 2.65 mm footprint, 0.65 mm pitch, 0.95 mm max height, designed for reflow soldering with defined solder paste stencil openings (0.5 mm × 0.5 mm pads).

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter of TR1 (NPN)	Low-impedance current sink node for NPN side; connects to ground or low-side load return.
2	Base of TR1 (NPN)	Control input for NPN transistor; requires current-limited drive to avoid overdrive.
3	Collector of TR2 (PNP)	High-side current source node; connects to positive supply rail in complementary switch topologies.
4	Emitter of TR2 (PNP)	Current source output for PNP side; ties to load high-side connection in emitter-follower or switch configurations.
5	Base of TR2 (PNP)	Inverted control input for PNP transistor; driven low to activate, requiring level-shifted or open-drain logic.
6	Collector of TR1 (NPN)	Low-side current sink output; connects to load cathode or grounded load return path.

Key Features

Feature	Design Value
Closely matched h_FE	Both transistors exhibit 200–450 gain range at 2 mA, enabling stable current mirroring and differential amplification without external trimming.
No mutual interference	Electrically isolated die structure eliminates crosstalk, allowing independent biasing and simultaneous switching without signal coupling.
AEC-Q101 qualification	Qualified for automotive applications including engine control units, lighting modules, and ADAS sensor interfaces per stress test standard.
Low V_CEsat	200–300 mV at full 100 mA load ensures <15 mW conduction loss per transistor, reducing thermal load in dense layouts.
Low collector capacitance	1.9–2.3 pF enables >100 MHz f_T, supporting fast edge rates in PWM dimming and digital signal conditioning.

Applications

Automotive Body Control Unit (BCU)

LED Driver Bias Network

Use Scenario: Driving window lift motor relays and door lock solenoids using complementary transistor pairs to manage bidirectional current flow.

IC Role / Device Role / Timing Role: Dual-polarity switch providing isolated high-side (PNP) and low-side (NPN) control paths with matched gain and timing.

Use Value: Eliminates need for two separate SOT23 packages, reducing PCB area by 40% while maintaining AEC-Q101 compliance and thermal stability.

Use Scenario: Setting precise bias currents for constant-current LED drivers in instrument cluster backlighting.

IC Role / Device Role / Timing Role: Current mirror reference pair delivering thermally tracked reference current to LED channel drivers.

Use Value: Gain matching within ±15% across −40 °C to 125 °C ensures consistent LED brightness without calibration.

Level-Shifting Interface

Discrete Logic Inverter

Use Scenario: Translating 3.3 V microcontroller GPIO signals to 5 V or 12 V domains for industrial I/O modules.

IC Role / Device Role / Timing Role: Complementary emitter-follower pair acting as non-inverting level shifter with rail-to-rail swing capability.

Use Value: Low V_BE (~650 mV) and fast f_T (>100 MHz) support clean 10 MHz digital transitions with <2 ns propagation delay.

Use Scenario: Implementing discrete Schmitt-trigger inverters in safety-critical reset generation circuits where ASIC integration is prohibited.

IC Role / Device Role / Timing Role: Cross-coupled NPN/PNP pair forming regenerative latch with hysteresis defined by resistor ratios.

Use Value: Independent die construction prevents latch-up and guarantees monotonic switching behavior under ESD stress.

Equivalent & Alternatives

The following parts are listed as comparable options for similar complementary transistor pair applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC847BPN-Q	Higher h_FE range (300–630) but same V_CEO/I_C; slightly higher V_CEsat (220–330 mV)	Better for low-base-drive applications; less suitable where tight gain matching is required	Select when higher current gain is prioritized over gain symmetry
MBT3904/3906DW1T1G	Same topology but SOT-363 package; h_FE min 100 (NPN)/125 (PNP); not AEC-Q101 qualified	Limited to commercial/industrial use; lacks automotive reliability validation and thermal derating data	Choose only for cost-sensitive non-automotive designs with relaxed qualification requirements

Compared with BC846BPN-QX, BC847BPN-Q offers higher gain at the expense of tighter matching tolerance, while MBT3904/3906DW1T1G provides functional equivalence without automotive qualification-making BC846BPN-QX the sole choice for AEC-compliant dual-transistor space-constrained designs requiring guaranteed gain tracking and thermal robustness.

Availability

BC846BPN-QX is available at Aetrix Electronics and suitable for automotive body control units, LED driver bias networks, level-shifting interfaces, and discrete logic inverters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for BC846BPN-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 BC846BPN-QX belongs to Nexperia's AEC-Q101-qualified general-purpose transistor family, engineered specifically for space-constrained, thermally demanding automotive subsystems requiring matched dual-polarity switching without performance compromise.

FAQ

What is the maximum operating temperature for BC846BPN-QX?

The BC846BPN-QX has a maximum junction temperature (T_j) of 150 °C and an ambient operating range of −55 °C to +150 °C. Its thermal resistance from junction to ambient is 416 K/W (per device on FR4 PCB), requiring derating above 25 °C ambient per the published power curve-full 300 mW dissipation is only valid at T_amb ≤ 25 °C.

Does BC846BPN-QX support hot-swap or in-circuit replacement?

No-BC846BPN-QX is not designed for hot-swap operation. Its absolute maximum ratings assume static bias conditions; applying voltage or current during insertion risks exceeding V_CEO, V_CB, or I_C limits due to transient coupling. Always power down the circuit before replacement, and observe ESD handling per ANSI/ESD S20.20.

How is gain matching verified between the NPN and PNP transistors?

Gain matching is characterized during final test at 25 °C using V_CE = ±5 V and I_C = ±2 mA. Devices are binned to ensure both transistors fall within the same h_FE group (200–300, 300–450). Match tolerance is not specified as a delta value but guaranteed by shared process and test correlation across wafer lots.

Can BC846BPN-QX be used in linear amplifier configurations?

Yes-its low noise figure (2.9–3.1 dB at 1 kHz), tight h_FE spread, and low V_CEsat support Class-A and Class-AB small-signal amplification. However, thermal derating must be applied: at 100 °C ambient, maximum usable P_tot drops to ~125 mW, limiting output swing and quiescent current in continuous operation.

BC846BPN-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:: 1 NPN, 1 PNP

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:: 200 @ 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

BC846BPN-QX FAQ

1.How can I place an order for BC846BPN-QX through Aetrix?

Please submit a Request for Quotation (RFQ) for BC846BPN-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 BC846BPN-QX reliable?

The price and inventory of BC846BPN-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC846BPN-QX is usually 5 days.

3.What payment methods are accepted for BC846BPN-QX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC846BPN-QX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC846BPN-QX?

BC846BPN-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC846BPN-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 BC846BPN-QX?

For technical support, including BC846BPN-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC846BPN-QX requirements.

6.How does Aetrix verify that BC846BPN-QX is sourced from the original manufacturer or authorized distributors?

All BC846BPN-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 BC846BPN-QX meets industry standards.

7.What is the process for return or replacement of BC846BPN-QX?

All BC846BPN-QX units undergo pre-shipment inspection (PSI). If there is an issue with BC846BPN-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 BC846BPN-QX part is unused and in its original packaging.

Return procedure for BC846BPN-QX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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