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

Nexperia USA Inc. BC846BS/ZLF

Name: BC846BS/ZLF
Brand: Nexperia USA Inc.
SKU: BC846BS/ZLF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC846BS/ZLF

Manufacturer:: Nexperia USA Inc.

Category:: Bipolar Transistor Arrays

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

Datasheet:: BC846BS/ZLF.pdf

Description:: TRANS 2NPN 65V 0.1A 6TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:4,032

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Product details

Overview

BC846BS from Nexperia is a dual NPN general-purpose transistor pair in SOT363-3 (TSSOP6) package, rated for 65 V V_CEO, 100 mA I_C, and featuring matched h_FE (200–450), low V_CE(sat) (200 mV @ 100 mA/5 mA), and isolated operation-used in compact signal switching and amplification stages of portable power management ICs.

For engineers reviewing the BC846BS datasheet, BC846BS pinout, BC846BS application, or BC846BS equivalent, this page delivers verified electrical parameters, validated dual-transistor pin mapping, thermal derating curves, and direct-fit alternatives for space-constrained dual-switch designs requiring mutual interference immunity.

Technical Context

This device integrates two electrically isolated NPN transistors in a single 6-pin surface-mount package, enabling independent biasing and switching without crosstalk. Each transistor supports DC current gain matching (h_FE = 200–450 at V_CE = 5 V, I_C = 2 mA) and exhibits low collector capacitance (C_c = 1.9 pF) for high-frequency small-signal operation.

It operates across −55 °C to +150 °C ambient, with per-device P_tot = 300 mW on FR4 PCB and junction-to-ambient thermal resistance R_th(j-a) = 416 K/W-optimized for thermally constrained consumer and industrial PCB layouts where discrete dual-transistor integration reduces footprint by >40% versus two SOT23 devices.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	65 V maximum collector-emitter voltage per transistor-supports rail voltages up to 50 V in switching applications with 30% safety margin.
I_C	100 mA continuous collector current per transistor-enables driving LED strings, logic-level MOSFET gates, or sensor interface loads.
h_FE	200–450 at V_CE = 5 V, I_C = 2 mA-ensures predictable base drive requirements and stable gain in amplifier and switch configurations.
V_CE(sat)	200 mV max at I_C = 100 mA, I_B = 5 mA-minimizes conduction loss and self-heating in high-duty-cycle switching.
C_c	1.9 pF typical collector capacitance at V_CB = 10 V-preserves bandwidth >100 MHz in RF-coupled preamp stages.
f_T	100 MHz minimum transition frequency at V_CE = 5 V, I_C = 10 mA-validates suitability for audio and low-MHz digital signal conditioning.
R_th(j-a)	416 K/W per device on FR4 PCB-dictates maximum power dissipation before thermal shutdown in unforced-air environments.

Pinout & Package

SOT363-3 (TSSOP6) plastic surface-mount package: 2.2 mm × 1.35 mm × 0.95 mm body, 0.65 mm lead pitch, gull-wing leads, tape-and-reel packaging compatible with standard SMT pick-and-place equipment.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter of TR1	Low-impedance current sink node for first transistor; connects directly to ground or load return path.
2	Base of TR1	Control input for TR1; requires ~5 mA base drive for full saturation at 100 mA collector load.
3	Collector of TR2	High-side output node for second transistor; routed to V_CC or active load in totem-pole configurations.
4	Emitter of TR2	Independent emitter reference for TR2; enables floating or differential bias schemes without shared substrate coupling.
5	Base of TR2	Isolated control input for TR2; decoupled from TR1's base to prevent unintended cross-triggering.
6	Collector of TR1	Primary output node for TR1; used for level-shifting, current mirroring, or push-pull driver outputs.

Key Features

Feature	Design Value
Closely matched h_FE	200–450 range per transistor ensures consistent current gain across both devices-critical for precision current mirrors and differential pairs.
No mutual interference	Fully isolated die structure eliminates capacitive and substrate coupling between TR1 and TR2-enables independent switching in noise-sensitive analog front-ends.
Low V_CE(sat)	200 mV max at I_C/I_B = 20 reduces power loss to <20 mW per transistor-extends battery life in portable 3.3 V/5 V systems.
Reduced board space	Single SOT363-3 footprint replaces two SOT23 devices-saves ≥45% PCB area and eliminates one solder joint per channel.
Low collector capacitance	1.9 pF C_c minimizes Miller effect-maintains >70 MHz bandwidth in common-emitter amplifier stages at 5 V supply.

Applications

LED Driver Circuit

Logic-Level Signal Switching

Use Scenario: Driving dual-color indicator LEDs in handheld medical devices with shared microcontroller GPIOs.

IC Role / Device Role / Timing Role: Dual NPN switch providing independent anode control for red/green LEDs with simultaneous on/off capability.

Use Value: Eliminates need for two discrete transistors and associated resistors-reducing BOM count by 4 components and PCB area by 3.2 mm².

Use Scenario: Level-shifting 1.8 V logic signals to 5 V peripherals in IoT sensor hubs.

IC Role / Device Role / Timing Role: Active pull-up switch translating low-voltage MCU outputs to higher-voltage bus drivers.

Use Value: 100 MHz f_T and 200 mV V_CE(sat) ensure sub-10 ns propagation delay and <0.5% duty cycle distortion at 1 MHz toggle rates.

Dual-Channel Sensor Interface

Compact Power Sequencing

Use Scenario: Isolating and amplifying outputs from two temperature sensors in automotive cabin controllers.

IC Role / Device Role / Timing Role: Dual common-emitter amplifier stage with matched h_FE for identical gain calibration across channels.

Use Value: h_FE matching within ±15% enables single-point gain trim-reducing factory calibration time by 35%.

Use Scenario: Enabling/disabling two independent 3.3 V rails in FPGA-based edge AI modules during boot sequence.

IC Role / Device Role / Timing Role: Dual high-side switch controlling PMOS gate drives with independent enable timing.

Use Value: Independent emitter terminals allow separate current limiting resistors-preventing cross-rail fault propagation during inrush events.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual NPN transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC847BS	Higher h_FE range (300–630), same V_CEO/I_C, identical SOT363-3 package	Better suited for low-base-drive applications but increases risk of overdrive in fixed-bias circuits	Select when base current budget is <2 mA and gain stability at low I_C (<1 mA) is critical
MMDT3904	Same pinout, lower V_CEO (40 V), higher V_CE(sat) (300 mV), 200 mW per device rating	Limited to ≤3.3 V rail applications; unsuitable for 5 V logic interfacing or 12 V load switching	Choose only for cost-sensitive, low-voltage (<3.6 V) consumer products with no thermal derating constraints

Compared with BC846BS, BC847BS offers higher gain headroom but tighter bias sensitivity, while MMDT3904 sacrifices voltage margin and efficiency for legacy compatibility-making BC846BS the optimal balance of robustness, thermal performance, and design flexibility in 5–12 V embedded systems.

Availability

BC846BS is available at Aetrix Electronics and suitable for LED driver circuits, logic-level signal switching, dual-channel sensor interfaces, and compact power sequencing requiring stable component supply across industrial, medical, and consumer electronics programs.

Supply support for BC846BS 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 specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.

The BC846BS belongs to Nexperia's general-purpose bipolar transistor family, engineered for space-constrained applications demanding dual-transistor functionality, thermal efficiency, and production-ready SMT compatibility.

FAQ

What is the maximum allowable junction temperature for BC846BS?

The absolute maximum junction temperature (T_j) is 150 °C, as defined in IEC 60134 limiting values. Operation above this threshold causes irreversible degradation of h_FE and increased leakage. Derating begins at 25 °C ambient, with total device power dissipation reduced linearly to zero at 125 °C ambient per the 416 K/W R_th(j-a) curve.

Can BC846BS be used in linear amplifier configurations?

Yes-its specified f_T = 100 MHz, low noise figure (3.1 dB at 1 kHz), and stable h_FE vs. I_C (Fig. 3) support Class-A and Class-AB small-signal amplification up to 10 MHz. However, thermal limitations restrict continuous linear operation to ≤50 mW per transistor on standard FR4; heatsinking or pulsed biasing is required for higher output.

How does the SOT363-3 package differ from standard SOT363?

The SOT363-3 variant features tighter dimensional tolerances and optimized lead geometry for improved coplanarity and solder joint reliability. Per revision history, it supersedes SOT363 with enhanced reflow compatibility-verified via IPC-A-610 Class 2 process validation-and maintains identical pinout and electrical specs.

Is BC846BS automotive qualified?

No-this device is not automotive qualified. The datasheet explicitly states "Non-automotive qualified products" in Section 14, and no AEC-Q101 stress test data or automotive-specific reliability reporting is included. It is intended for industrial, consumer, and medical applications operating within −55 °C to +150 °C ambient, but not for safety-critical vehicle subsystems.

BC846BS/ZLF Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: -

Current - Collector (Ic) (Max):: -

Voltage - Collector Emitter Breakdown (Max):: -

Vce Saturation (Max) @ Ib, Ic:: -

Current - Collector Cutoff (Max):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: -

Power - Max:: -

Frequency - Transition:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 6-TSSOP

BC846BS/ZLF FAQ

1.How can I place an order for BC846BS/ZLF through Aetrix?

Please submit a Request for Quotation (RFQ) for BC846BS/ZLF 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 BC846BS/ZLF reliable?

The price and inventory of BC846BS/ZLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC846BS/ZLF is usually 5 days.

3.What payment methods are accepted for BC846BS/ZLF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC846BS/ZLF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC846BS/ZLF?

BC846BS/ZLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC846BS/ZLF 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 BC846BS/ZLF?

For technical support, including BC846BS/ZLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC846BS/ZLF requirements.

6.How does Aetrix verify that BC846BS/ZLF is sourced from the original manufacturer or authorized distributors?

All BC846BS/ZLF 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 BC846BS/ZLF meets industry standards.

7.What is the process for return or replacement of BC846BS/ZLF?

All BC846BS/ZLF units undergo pre-shipment inspection (PSI). If there is an issue with BC846BS/ZLF, 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 BC846BS/ZLF part is unused and in its original packaging.

Return procedure for BC846BS/ZLF:

1.Submit a request within 90 days.

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

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