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

Nexperia USA Inc. BC816-16WF

Name: BC816-16WF
Brand: Nexperia USA Inc.
SKU: BC816-16WF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC816-16WF

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: SC-70, SOT-323

Datasheet:: BC816-16WF.pdf

Description:: TRANS NPN 80V 0.5A SOT-323

Quantity:: RFQ Add To RFQ list

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Inventory:28,325

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Product details

Overview

BC816-16WF from Nexperia is an AEC-Q101 qualified NPN general-purpose transistor in SOT323 (SC-70) package, rated for 80 V V_CEO, 500 mA I_C, and 100–250 h_FE at V_CE = 1 V / I_C = 100 mA. It serves as a compact, automotive-grade switching and amplification device in space-constrained 48 V board nets and low-power control stages.

For engineers reviewing the BC816-16WF datasheet, BC816-16WF pinout, BC816-16WF application, or BC816-16WF equivalent, this page delivers verified package mapping, validated thermal derating behavior, confirmed AEC-Q101 qualification status, and real-world use cases in automotive power distribution and signal-level switching circuits.

Technical Context

This discrete NPN bipolar junction transistor operates with open-base collector-emitter breakdown voltage of 80 V and emitter-base breakdown voltage of 7 V, supporting robust operation in 48 V automotive systems where transient overvoltage immunity is critical. Its pulsed peak collector current capability reaches 1 A (t_p ≤ 1 ms), enabling short-duration surge handling in relay drivers and LED flash circuits.

The device exhibits a typical transition frequency (f_T) of 100 MHz at V_CE = 5 V / I_C = 50 mA, confirming suitability for low-to-moderate speed switching up to several megahertz. Thermal resistance R_th(j-a) is 625 K/W on standard FR4 PCB, defining its steady-state power dissipation limit at 290 mW under ambient conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	80 V - Maximum safe collector-emitter voltage before breakdown; enables use in 48 V automotive supply rails with margin.
I_C	500 mA - Continuous DC collector current rating; supports medium-current loads like small solenoids or logic-level interface buffers.
h_FE	100–250 - DC current gain range at V_CE = 1 V / I_C = 100 mA; ensures predictable base drive requirements for saturation switching.
V_CE(sat)	≤400 mV at I_C = 500 mA / I_B = 50 mA - Low saturation voltage minimizes conduction loss and self-heating in high-duty-cycle switching.
P_tot	290 mW at T_amb ≤ 25 °C - Total power dissipation limit on standard FR4 PCB; defines maximum continuous power handling without heatsinking.
f_T	100 MHz - Transition frequency confirms usable bandwidth for digital switching and analog amplification up to ~10 MHz.
AEC-Q101	Qualified - Validated for automotive applications per stress test standard; includes temperature cycling, HTRB, and ESD testing.

Pinout & Package

SOT323 (SC-70) is a 3-pin surface-mount plastic package measuring 2.2 mm × 1.35 mm × 0.95 mm (L × W × H), optimized for high-density PCB layouts and reflow-compatible assembly.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control terminal accepting forward-biased current to enable transistor conduction; requires current-limiting resistor in series for reliable biasing.
2	Emitter (E)	Current return path; connected to ground or low-side reference in common-emitter configurations; forms the output node in emitter-follower topologies.
3	Collector (C)	High-side current output terminal; connects to load and supply rail; carries full switched current and must be routed with adequate copper area for thermal management.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive environments including temperature cycling (−55 °C to +150 °C), humidity, and mechanical shock-no additional qualification required for Tier-1 designs.
Two h_FE grades	BC816-16WF offers 100–250 h_FE; paired with BC816-25WF (160–400 h_FE) for design flexibility in gain-critical or low-base-drive applications.
Low V_CE(sat)	≤400 mV at full-rated 500 mA enables <100 mW conduction loss, reducing thermal burden in thermally constrained modules like body control units.
80 V breakdown rating	Exceeds ISO 7637-2 pulse 5a (75 V) requirement for 48 V systems, providing margin against load dump transients without external clamping.

Applications

Automotive Body Control Module

Industrial Sensor Interface

Use Scenario: Driving 12 V/24 V indicator LEDs and small relays in door modules and lighting controllers.

IC Role / Device Role / Timing Role: Discrete NPN switch controlling current flow to resistive/inductive loads via microcontroller GPIO.

Use Value: AEC-Q101 qualification ensures reliability across vehicle lifetime; 80 V rating withstands battery load-dump spikes without protection diodes.

Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., thermistors, potentiometers) into ADC inputs.

IC Role / Device Role / Timing Role: Emitter-follower configuration providing low-output-impedance voltage buffer with unity gain and high input impedance.

Use Value: Stable h_FE across −40 °C to +125 °C ensures consistent gain matching in unregulated industrial enclosures.

Consumer Power Adapter Feedback

Medical Diagnostic Equipment

Use Scenario: Optocoupler-driven secondary-side feedback transistor in isolated AC/DC flyback converters.

IC Role / Device Role / Timing Role: Fast-switching NPN switch translating opto-isolator output into PWM controller enable/disable signal.

Use Value: 100 MHz f_T supports clean edge transitions at 100 kHz–500 kHz switching frequencies; low C_c (2 pF) minimizes timing jitter.

Use Scenario: Isolated signal gating in patient-connected monitoring circuits requiring reinforced insulation and low leakage.

IC Role / Device Role / Timing Role: High-impedance base-controlled switch isolating analog front-end paths during calibration or standby modes.

Use Value: Ultra-low I_CBO (100 nA max) and I_EBO (100 nA max) prevent signal corruption in µA-level biomedical sensing nodes.

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
BC816-16W	Same electrical specs and package; differs only in marking code (2L% vs 2LZ) and absence of 'F' suffix denoting halogen-free material compliance.	No functional difference in automotive or industrial use; BC816-16WF meets stricter RoHS/halogen-free requirements for medical and green-certified products.	Select BC816-16WF when halogen-free compliance is mandated by end-product environmental standards (e.g., IEC 61249-2-21).
MMBT3904LT1G	Lower V_CEO (40 V), higher h_FE (100–300), same SOT23 package but larger footprint (2.9 mm × 1.3 mm vs 2.2 mm × 1.35 mm); not AEC-Q101 qualified.	Not suitable for 48 V automotive systems due to insufficient voltage margin; acceptable only in 5–24 V consumer or industrial applications.	Choose MMBT3904LT1G only for cost-sensitive non-automotive designs where space and qualification are secondary to unit price.

Compared with BC816-16W, the BC816-16WF adds halogen-free compliance without performance trade-offs; versus MMBT3904LT1G, it trades package size and qualification for guaranteed 48 V system compatibility and automotive lifecycle assurance.

Availability

BC816-16WF is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, and medical diagnostic equipment requiring stable component supply and long-term manufacturing continuity.

Supply support for BC816-16WF 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 BC816W series belongs to Nexperia's AEC-Q101 qualified general-purpose transistor portfolio, engineered specifically for robust, space-efficient switching and amplification in harsh-environment 48 V board networks and safety-critical subsystems.

FAQ

Is BC816-16WF pin-compatible with BC816-16W?

Yes-both share identical SOT323 (SC-70) pinout (1: Base, 2: Emitter, 3: Collector), identical mechanical dimensions, and identical electrical specifications. The sole difference is halogen-free material compliance certified in the 'F' suffix version, with no impact on PCB layout or schematic symbol.

What is the maximum allowable base current for continuous operation?

The absolute maximum peak base current is 200 mA (single pulse, t_p ≤ 1 ms), but for continuous DC operation, base current must be limited to ensure I_C ≤ 500 mA and junction temperature remains below 150 °C. At I_C = 500 mA and h_FE = 100, I_B = 5 mA is sufficient for saturation; practical designs use 10–20 mA for margin.

Does BC816-16WF support wave soldering?

Yes-Nexperia provides dedicated wave soldering footprint data (Fig. 14) with 3.65 mm × 2.1 mm pad layout and preferred transport direction. The SOT323 package is qualified for both reflow and wave processes, though reflow is recommended for optimal thermal profile control and void minimization.

How does thermal derating affect power handling above 25 °C ambient?

Power dissipation linearly derates above 25 °C at 2.32 mW/°C (290 mW ÷ (150 °C − 25 °C)), reaching zero at 150 °C junction temperature. At 85 °C ambient, P_tot drops to ~155 mW-requiring reduced I_C or increased copper area to maintain safe operation in enclosed automotive ECUs.

BC816-16WF Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: BC816W

Package/Case:: SC-70, SOT-323

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

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

Voltage - Collector Emitter Breakdown (Max):: 80 V

Vce Saturation (Max) @ Ib, Ic:: 400mV @ 5mA, 50mA

Current - Collector Cutoff (Max):: 100µA

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

Power - Max:: 200 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323

BC816-16WF FAQ

1.How can I place an order for BC816-16WF through Aetrix?

Please submit a Request for Quotation (RFQ) for BC816-16WF 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 BC816-16WF reliable?

The price and inventory of BC816-16WF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC816-16WF is usually 5 days.

3.What payment methods are accepted for BC816-16WF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC816-16WF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC816-16WF?

BC816-16WF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC816-16WF 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 BC816-16WF?

For technical support, including BC816-16WF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC816-16WF requirements.

6.How does Aetrix verify that BC816-16WF is sourced from the original manufacturer or authorized distributors?

All BC816-16WF 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 BC816-16WF meets industry standards.

7.What is the process for return or replacement of BC816-16WF?

All BC816-16WF units undergo pre-shipment inspection (PSI). If there is an issue with BC816-16WF, 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 BC816-16WF part is unused and in its original packaging.

Return procedure for BC816-16WF:

1.Submit a request within 90 days.

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

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