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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Nexperia USA Inc. BC817-16QB-QZ

Name: BC817-16QB-QZ
Brand: Nexperia USA Inc.
SKU: BC817-16QB-QZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC817-16QB-QZ

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: 3-XDFN Exposed Pad

Datasheet:: BC817-16QB-QZ.pdf

Description:: TRANS NPN 45V 0.5A DFN1110D-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC817-16QB-Q from Nexperia is a 45 V, 500 mA NPN general-purpose transistor in a DFN1110D-3 (SOT8015) leadless SMD package with side-wettable flanks, featuring h_FE = 100–250 at I_C = 100 mA, V_CE(sat) ≤ 700 mV at I_C = 500 mA/I_B = 50 mA, and AEC-Q101 qualification for automotive use.

For engineers reviewing the BC817-16QB-Q datasheet, BC817-16QB-Q pinout, BC817-16QB-Q application, or BC817-16QB-Q equivalent, this device supports space-constrained switching and amplification where low profile (0.48 mm height), AOI-compatible solder joints, and thermal robustness on FR4 PCBs are critical selection criteria.

Technical Context

This NPN bipolar junction transistor operates as a current-controlled switch or linear amplifier with DC current gain binned to 100–250, collector-emitter breakdown voltage of 45 V, and peak collector current capability of 1 A in pulsed mode. Its base-emitter saturation voltage remains ≤1.2 V at I_C = 500 mA.

The DFN1110D-3 package enables high-density placement and automated optical inspection via side-wettable flanks, while thermal resistance R_th(j-a) is 358 K/W on standard FR4 (35 μm Cu) and 272 K/W on enhanced FR4 (70 μm Cu), supporting reliable operation up to T_j = 150 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	45 V - Maximum safe collector-emitter voltage under open-base conditions, defining off-state blocking capability in switching circuits.
I_C	500 mA - Continuous DC collector current rating at 25 °C ambient, setting maximum steady-state load drive capacity.
h_FE	100–250 - DC current gain range at V_CE = 1 V, I_C = 100 mA, determining required base drive for saturated switching.
V_CE(sat)	≤ 700 mV - Collector-emitter saturation voltage at I_C = 500 mA / I_B = 50 mA, directly impacting conduction loss and power dissipation.
P_tot	350 mW - Total power dissipation on standard FR4 PCB (35 μm Cu), establishing thermal derating envelope for continuous operation.
f_T	100 MHz - Transition frequency at V_CE = 5 V, I_C = 10 mA, indicating usable bandwidth for small-signal amplification.
C_c	3 pF - Collector capacitance at V_CB = 10 V, influencing high-frequency response and switching speed in digital applications.

Pinout & Package

DFN1110D-3 (SOT8015) is a 3-terminal, leadless, ultra-thin plastic package measuring 1.1 × 1.0 × 0.48 mm with side-wettable flanks for AOI-compatible reflow soldering.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Current-controlled input node; requires ≥50 mA base drive for full saturation at 500 mA collector current.
2	Emitter (E)	Reference terminal for biasing; connected to ground or low-side return path in common-emitter configurations.
3	Collector (C)	High-current output node; handles up to 500 mA continuous load and interfaces with V_CC-side circuitry.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards.
Side-wettable flanks	Enables automated optical inspection of solder fillets without X-ray, improving manufacturing yield in high-volume SMT lines.
0.48 mm package height	Reduces board stack height in ultra-thin consumer and ADAS modules where Z-axis clearance is constrained.
Three h_FE bins	BC817-16QB-Q (100–250), BC817-25QB-Q (160–400), BC817-40QB-Q (250–600) allow precise gain matching across production lots.
Low thermal resistance	R_th(j-a) = 272 K/W on 70 μm Cu FR4 enables higher sustained power handling without heatsinking in compact layouts.

Applications

Automotive Door Module Switching

Portable Medical Sensor Biasing

Use Scenario: Driving window lift motor relays and LED status indicators in door control units.

IC Role / Device Role / Timing Role: NPN switch controlling 12 V loads with fast turn-on/turn-off enabled by low V_CE(sat) and 100 MHz f_T.

Use Value: AEC-Q101 qualification ensures 15-year field reliability; side-wettable flanks reduce post-reflow defect escapes in Tier-1 assembly lines.

Use Scenario: Providing stable bias current to photodiode amplifiers and analog front-end transimpedance stages.

IC Role / Device Role / Timing Role: Linear-mode current source with tight h_FE binning (100–250) enabling predictable gain stability over -40 °C to +125 °C.

Use Value: Low 3 pF collector capacitance minimizes signal path phase shift; 0.48 mm height allows integration beneath compact sensor housings.

Industrial PLC Output Stage

Smart Home Actuator Interface

Use Scenario: Level-shifting and current boosting for 24 V DC solenoid drivers in programmable logic controller I/O modules.

IC Role / Device Role / Timing Role: High-current switch interfacing microcontroller GPIOs to industrial loads, leveraging 1 A pulsed I_CM for inrush handling.

Use Value: 45 V V_CEO provides margin against inductive kickback; 350 mW P_tot rating supports continuous duty in sealed enclosures.

Use Scenario: Controlling RGB LED strings and small DC fans in battery-powered smart lighting and HVAC nodes.

IC Role / Device Role / Timing Role: Low-power switching element with minimal footprint (1.1 × 1.0 mm), enabling dense multi-channel driver integration.

Use Value: DFN1110D-3 package reduces PCB area by >60% vs. SOT23; AOI compatibility lowers test cost in contract manufacturing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN general-purpose transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC817-16-7-F (Diodes Inc.)	SOT23 package (3.04 × 1.4 mm), higher R_th(j-a) (400 K/W), no AEC-Q101 qualification, h_FE = 100–250 identical.	Larger footprint and lower thermal performance limit use in automotive or high-density designs.	Select when legacy SOT23 layout compatibility is required and AEC-Q101 is not mandated.
MMBT3904LT1G (ON Semiconductor)	SOT23-3 package, V_CEO = 40 V (5 V lower), I_C = 200 mA (300 mA lower), h_FE = 100–300, no side-wettable flanks.	Insufficient voltage/current headroom for 12 V/500 mA automotive loads; unsuitable for AOI-based production.	Choose only for non-automotive, low-power (<200 mA), cost-sensitive applications with existing SOT23 footprints.

Compared with BC817-16QB-Q, BC817-16-7-F sacrifices automotive qualification and thermal efficiency for SOT23 compatibility, while MMBT3904LT1G lacks both voltage/current margin and manufacturability features needed for modern high-reliability, space-constrained designs.

Availability

BC817-16QB-Q is available at Aetrix Electronics and suitable for automotive body electronics, portable medical instrumentation, and industrial PLC output stages requiring stable component supply with AEC-Q101 assurance and AOI-ready packaging.

Supply support for BC817-16QB-Q 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 semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets.

The BC817QB-Q series belongs to Nexperia's AEC-Q101-qualified general-purpose transistor portfolio, engineered specifically for space-constrained, high-reliability switching and amplification in automotive ECUs and industrial control systems.

FAQ

What is the maximum junction temperature and how does it affect continuous operation?

The BC817-16QB-Q has a maximum junction temperature (T_j) of 150 °C. At ambient temperatures above 25 °C, power dissipation must be derated linearly per Figure 1 in the datasheet: for example, at 85 °C ambient, maximum allowable P_tot drops to ~220 mW on standard FR4. This directly limits continuous collector current in thermally constrained layouts.

Is the DFN1110D-3 package compatible with standard reflow profiles and stencil designs?

Yes - the DFN1110D-3 (SOT8015) package is qualified for lead-free reflow per JEDEC J-STD-020. Recommended stencil thickness is 0.1 mm, with solder paste land dimensions of 0.34 × 0.88 mm per pad (Figure 17). Side-wettable flanks ensure reliable fillet formation detectable by AOI without requiring X-ray inspection.

How does the h_FE binning impact base drive design in switching applications?

The BC817-16QB-Q's guaranteed h_FE range of 100–250 at I_C = 100 mA means base current must be designed for worst-case gain: to saturate at I_C = 500 mA, minimum I_B = 500 mA / 100 = 5 mA, but typical design uses I_B = 50 mA (IC/IB = 10) to ensure deep saturation and low V_CE(sat) across temperature and process variation.

Can BC817-16QB-Q replace BC817-16 in existing SOT23 designs?

No - BC817-16QB-Q uses the DFN1110D-3 (SOT8015) package (1.1 × 1.0 mm), which is physically incompatible with SOT23 footprints (3.04 × 1.4 mm). While electrical specs align closely, mechanical redesign and requalification are required due to different thermal behavior, solder joint geometry, and mounting constraints.

BC817-16QB-QZ Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: 3-XDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 500 mA

Voltage - Collector Emitter Breakdown (Max):: 45 V

Vce Saturation (Max) @ Ib, Ic:: 700mV @ 50mA, 500mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 100mA, 1V

Power - Max:: 350 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: DFN1110D-3

BC817-16QB-QZ FAQ

1.How can I place an order for BC817-16QB-QZ through Aetrix?

Please submit a Request for Quotation (RFQ) for BC817-16QB-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 BC817-16QB-QZ reliable?

The price and inventory of BC817-16QB-QZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC817-16QB-QZ is usually 5 days.

3.What payment methods are accepted for BC817-16QB-QZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC817-16QB-QZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC817-16QB-QZ?

BC817-16QB-QZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC817-16QB-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 BC817-16QB-QZ?

For technical support, including BC817-16QB-QZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC817-16QB-QZ requirements.

6.How does Aetrix verify that BC817-16QB-QZ is sourced from the original manufacturer or authorized distributors?

All BC817-16QB-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 BC817-16QB-QZ meets industry standards.

7.What is the process for return or replacement of BC817-16QB-QZ?

All BC817-16QB-QZ units undergo pre-shipment inspection (PSI). If there is an issue with BC817-16QB-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 BC817-16QB-QZ part is unused and in its original packaging.

Return procedure for BC817-16QB-QZ:

1.Submit a request within 90 days.

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

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