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

Nexperia USA Inc. BC817-16QCH-QZ

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

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Part No.:: BC817-16QCH-QZ

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: 3-XDFN Exposed Pad

Datasheet:: BC817-16QCH-QZ.pdf

Description:: TRANS NPN 45V 0.5A DFN1412D-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC817-16QCH-Q from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in a DFN1412D-3 (SOT8009) leadless package, rated for 45 V V_CEO, 500 mA I_C, and DC current gain (h_FE) of 100–250 at V_CE = 1 V and I_C = 100 mA. It operates up to 175 °C junction temperature and supports automotive body electronics switching and low-power amplification.

For engineers reviewing the BC817-16QCH-Q datasheet, BC817-16QCH-Q pinout, BC817-16QCH-Q application, or BC817-16QCH-Q equivalent, this page delivers verified electrical parameters, thermal derating behavior, side-wettable flank solder joint compatibility, and validated automotive-grade reliability data - all specific to the -16 gain bin variant.

Technical Context

This device implements a silicon planar epitaxial NPN structure optimized for high-reliability switching and linear amplification in space-constrained automotive modules. Its DFN1412D-3 package features side-wettable flanks for automated optical inspection (AOI) of solder joints and achieves 575 mW power dissipation on 70 μm FR4 copper.

The transistor exhibits V_CE(sat) ≤ 700 mV at I_C = 500 mA / I_B = 50 mA and f_T = 100 MHz at V_CE = 5 V, I_C = 10 mA, enabling use in mid-frequency signal conditioning and load switching with predictable saturation behavior across –55 °C to +175 °C ambient.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	45 V - Maximum collector-emitter voltage before breakdown under open-base conditions; defines safe operating voltage headroom in 12 V/24 V automotive supply rails.
I_C	500 mA - Continuous collector current rating at 25 °C ambient; supports driving small relays, LEDs, or logic-level MOSFET gates without forced cooling.
h_FE	100–250 - DC current gain range at V_CE = 1 V, I_C = 100 mA; enables stable biasing in Class-A amplifiers and predictable switching thresholds in digital interface circuits.
V_CE(sat)	≤ 700 mV - Collector-emitter saturation voltage at I_C = 500 mA, I_B = 50 mA; ensures low conduction loss and minimal self-heating during sustained on-state operation.
T_j(max)	175 °C - Maximum junction temperature; allows deployment in under-hood ECUs, lighting control units, and motor drivers where ambient exceeds 125 °C.
R_th(j-a)	261 K/W - Thermal resistance junction-to-ambient on 70 μm FR4 PCB; informs thermal design margin when calculating maximum allowable power at elevated ambient temperatures.

Pinout & Package

DFN1412D-3 (SOT8009) is a 3-terminal, leadless, thermally enhanced ultra-thin plastic package measuring 1.4 × 1.2 × 0.5 mm with side-wettable flanks for AOI-compatible reflow soldering.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control terminal for forward-biased injection; requires current-limited drive (e.g., 5–50 mA) to achieve specified h_FE and V_CE(sat).
2	Emitter (E)	Current return path tied to system ground or low-side reference; forms common-emitter configuration with defined current gain and output impedance.
3	Collector (C)	High-side output node connected to load; sustains 45 V blocking capability and dissipates heat via exposed copper pad beneath package bottom.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive applications including engine control, lighting, and body electronics per stress test requirements for discrete semiconductors.
Side-wettable flanks	Enables automated optical inspection (AOI) of solder fillets on all three terminals, improving manufacturing yield and field reliability in SMT lines.
Low profile (0.5 mm height)	Reduces board stack height in compact modules such as smart sensors and distributed controllers where Z-axis clearance is constrained.
Thermal enhancement	Exposed thermal pad and optimized copper layout support 575 mW dissipation on standard FR4, reducing need for heatsinking in moderate-power switching.
Three h_FE bins	BC817-16QCH-Q (100–250), BC817-25QCH-Q (160–400), BC817-40QCH-Q (250–600) allow precise gain matching for analog feedback or consistent switching thresholds.

Applications

Automotive Interior Lighting Control

Engine Bay Sensor Signal Conditioning

Use Scenario: Driving LED strings in door modules and dashboard backlighting using PWM-controlled NPN switch.

IC Role / Device Role / Timing Role: Low-side switching transistor handling 350 mA peak current with <700 mV saturation drop to minimize power loss and thermal rise.

Use Value: Enables compact, thermally robust LED driver stage meeting AEC-Q101 requirements without external heat sinking.

Use Scenario: Amplifying low-level analog signals from temperature or pressure sensors in high-ambient-temperature engine compartments.

IC Role / Device Role / Timing Role: Linear amplifier configured in common-emitter topology with stable h_FE (100–250) across –40 °C to +150 °C.

Use Value: Maintains signal integrity and gain consistency over full automotive temperature range without calibration drift.

Body Control Module Load Switching

Industrial Motor Driver Interface

Use Scenario: Controlling solenoid valves and small DC fans in BCMs using microcontroller GPIO-driven switching.

IC Role / Device Role / Timing Role: General-purpose NPN switch with 45 V V_CEO and 1 A peak current capability for inductive load suppression.

Use Value: Provides reliable turn-on/turn-off with fast recovery and low V_CE(sat), reducing energy loss and EMI during transients.

Use Scenario: Level-shifting and isolation between MCU outputs and gate drivers in 24 V industrial motor control boards.

IC Role / Device Role / Timing Role: Digital interface buffer with 175 °C T_j(max) and side-wettable flanks ensuring long-term solder joint integrity in harsh environments.

Use Value: Eliminates need for through-hole alternatives while maintaining AEC-Q101-level reliability in factory automation systems.

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
BC817-16,215 (SOT23)	Same electrical specs but in legacy SOT23-3 package; no side-wettable flanks; R_th(j-a) ≈ 350 K/W on FR4.	Lacks AOI support and thermal performance; suitable only for non-automotive, cost-sensitive consumer designs.	Select only if footprint compatibility with existing SOT23 layouts is mandatory and AOI or high-temp operation is not required.
MMBT3904Q-13-F (AEC-Q101)	h_FE = 100–300, V_CEO = 40 V, I_C = 200 mA; smaller 1.25 × 0.85 mm DFN package; lower current rating.	Insufficient for 500 mA loads; limited to signal-level switching and pre-amplification stages.	Choose only for ultra-low-power signal routing where 200 mA max current and 40 V rating are acceptable.

Compared with BC817-16,215, the BC817-16QCH-Q delivers superior thermal management and AOI capability in a smaller footprint; versus MMBT3904Q-13-F, it provides 2.5× higher continuous current and 5 V higher breakdown voltage - critical for robust 12 V/24 V automotive load switching.

Availability

BC817-16QCH-Q is available at Aetrix Electronics and suitable for automotive interior lighting control, engine bay sensor signal conditioning, and body control module load switching requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BC817-16QCH-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 efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and mobile markets.

The BC817QCH-Q series targets AEC-Q101-compliant automotive subsystems demanding miniaturization, thermal resilience, and AOI-ready packaging - specifically engineered for under-hood and body electronics where reliability and manufacturability are co-critical.

FAQ

What is the marking code for BC817-16QCH-Q?

The top-side marking for BC817-16QCH-Q is "8V", laser-etched on the package surface. This code uniquely identifies the -16 h_FE bin within the BC817QCH-Q series and is visible under standard optical inspection systems used in SMT assembly lines.

Does BC817-16QCH-Q require special PCB layout considerations?

Yes - the DFN1412D-3 package requires a dedicated thermal pad footprint per Figure 17 in the datasheet: 0.8 × 0.8 mm solder land with 0.4 mm stencil aperture and 0.1 mm thickness. Side-wettable flanks demand precise solder paste volume control to ensure reliable AOI detection of all three terminals.

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

No - BC817-16QCH-Q uses DFN1412D-3 (SOT8009), which is physically incompatible with SOT23 footprints. The pinout (1-B, 2-E, 3-C) matches SOT23 orientation, but dimensions (1.4 × 1.2 mm vs. 2.9 × 1.3 mm), thermal pad presence, and side-wettable flank geometry prevent direct substitution without PCB redesign.

What is the maximum allowable power dissipation at 100 °C ambient?

At T_amb = 100 °C, the maximum allowable power dissipation is 320 mW when mounted on FR4 with 70 μm copper (R_th(j-a) = 261 K/W). This is derived from P_tot = (T_j(max) − T_amb) / R_th(j-a) = (175 − 100) / 261 ≈ 0.287 W, derated to 320 mW per Figure 1's curve for safety margin and reliability.

BC817-16QCH-QZ Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: BC817QCH-Q

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:: 455 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 175°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: DFN1412D-3

BC817-16QCH-QZ FAQ

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

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

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

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

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

Note: Certain payment methods may incur a processing fee.

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

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

Once your BC817-16QCH-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 BC817-16QCH-QZ?

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

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

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

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

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

Return procedure for BC817-16QCH-QZ:

1.Submit a request within 90 days.

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

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