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

Diodes Incorporated BC817-16Q-7-F

Name: BC817-16Q-7-F
Brand: Diodes Incorporated
SKU: BC817-16Q-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC817-16Q-7-F

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BC817-16Q-7-F.pdf

Description:: TRANS NPN 45V 0.5A SOT-23-3

Quantity:: RFQ Add To RFQ list

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Inventory:13,596

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Product details

Overview

BC817-16Q-7-F from Diodes Incorporated is an AEC-Q101 qualified 45V NPN bipolar junction transistor in SOT23 package, rated for 500mA continuous collector current and 1A peak pulse current, with DC current gain (h_FE) of 100–250 at I_C = 100mA, V_CE = 1V, used in automotive switching and audio-frequency amplifier circuits.

For engineers reviewing the BC817-16Q-7-F datasheet, BC817-16Q-7-F pinout, BC817-16Q-7-F application, or BC817-16Q-7-F equivalent, key selection criteria include V_CEO = 45V, h_FE binning (16Q), thermal resistance R_θJA = 403°C/W on FR-4, and automotive qualification status per IATF 16949.

Technical Context

This NPN BJT employs epitaxial planar die construction for stable gain and low leakage, supporting both linear amplification (e.g., AF stages) and saturated switching (e.g., load control) with V_CE(sat) ≤ 0.7V at I_C = 500mA / I_B = 50mA. Its 100MHz f_T enables operation up to mid-audio frequencies.

Designed specifically for automotive environments, it meets AEC-Q101 stress testing, operates across –65°C to +150°C, and features halogen/antimony-free "Green" packaging with J-STD-020 Level 1 moisture sensitivity and matte tin-plated leads compliant with MIL-STD-202.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	45 V - Maximum allowable collector-emitter voltage before breakdown under open-base conditions
I_C (cont.)	0.5 A - Continuous collector current rating defining steady-state power handling capability
h_FE (100mA)	100–250 - DC current gain range at V_CE = 1V, enabling predictable base drive sizing
V_CE(sat)	≤ 0.7 V - Saturation voltage at I_C = 500mA / I_B = 50mA, limiting conduction loss in switch mode
f_T	100 MHz - Transition frequency indicating usable bandwidth for small-signal amplification
R_θJA	403 °C/W - Junction-to-ambient thermal resistance on minimum-pad FR-4 PCB, guiding heatsinking needs
ESD HBM	8,000 V - Human Body Model ESD rating confirming robustness during handling and assembly

Pinout & Package

Package: SOT23 - surface-mount plastic case with 3-pin configuration, 0.008g mass, UL 94V-0 flammability rating, and JEDEC-standard footprint.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current sink terminal	Reference node for biasing; connects to ground or low-side return path in switching applications
2 (Base)	Control input	Receives current-limited drive signal to regulate collector current; requires series resistor for safe operation
3 (Collector)	Current source terminal	Connects to load or supply rail; carries full switched current and dissipates most heat in saturation

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive use with PPAP capability and IATF 16949 manufacturing certification
Epitaxial planar die	Ensures consistent h_FE distribution and low leakage (I_CES ≤ 100nA at V_CE = 45V)
Green compound packaging	Halogen- and antimony-free molding compound meeting RoHS 3 and JEDEC green definitions
SOT23 mechanical compatibility	Standardized footprint supports automated placement and reflow soldering in high-volume production

Applications

Automotive Door Module Control

Industrial Relay Driver

Use Scenario: Driving window lift motors and lock actuators in vehicle door modules under 12V battery supply.

IC Role / Device Role / Timing Role: NPN switch controlling ground-side motor current with fast turn-on/turn-off and low V_CE(sat).

Use Value: Enables compact, thermally efficient design with verified AEC-Q101 reliability and 150°C operating margin.

Use Scenario: Interfacing microcontroller GPIOs to 24V industrial relay coils requiring >100mA drive.

IC Role / Device Role / Timing Role: Low-side switch providing current gain and isolation between logic and inductive load.

Use Value: Delivers reliable coil energization with <0.7V saturation drop and 8kV HBM ESD protection during factory handling.

Consumer Audio Preamp Stage

Power Supply Feedback Transistor

Use Scenario: Small-signal amplification in portable speaker line-level preamplifier stages.

IC Role / Device Role / Timing Role: Linear-mode NPN amplifier with f_T = 100MHz supporting full audio bandwidth (20Hz–20kHz).

Use Value: Provides stable 100–250 h_FE gain at 100mA bias, minimizing distortion in Class-A configurations.

Use Scenario: Secondary-side error amplifier transistor in isolated flyback SMPS feedback loop.

IC Role / Device Role / Timing Role: Signal-level switch translating optocoupler output to PWM controller enable/disable input.

Use Value: Ensures precise regulation with low I_CES (≤100nA) preventing false triggering under high-voltage transients.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN switching and amplification applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC817-25Q-7-F	Higher h_FE bin (160–400 vs. 100–250), same V_CEO, I_C, and package	Better suited for low-base-drive designs where gain margin is critical	Select when base current is constrained and higher h_FE improves efficiency or simplifies driver design
MMBT3904-7-F	Lower V_CEO (40V vs. 45V), lower I_C (200mA vs. 500mA), same SOT23 package	Not rated for automotive; lacks AEC-Q101 qualification and PPAP support	Acceptable for non-automotive consumer or industrial use where voltage/current demands are lower

Compared with BC817-25Q-7-F, this part trades gain headroom for tighter h_FE tolerance in cost-sensitive automotive modules; versus MMBT3904-7-F, it delivers higher voltage margin and automotive compliance at no footprint penalty.

Availability

BC817-16Q-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial relay interfaces, and consumer audio signal conditioning requiring stable component supply and long-term lifecycle assurance.

Supply support for BC817-16Q-7-F 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.

The BC817-Q series belongs to Diodes' AEC-Q101-qualified small-signal transistor product line, engineered for functional safety-critical automotive subsystems where consistency, thermal stability, and process traceability are mandatory.

FAQ

What is the difference between BC817-16Q-7-F and BC817-16-7-F?

The "Q" suffix denotes AEC-Q101 qualification, IATF 16949 manufacturing, PPAP capability, and automotive-grade change control-features absent in the standard BC817-16-7-F. The Q version also guarantees halogen/antimony-free "Green" packaging and higher ESD robustness (8kV HBM).

Can BC817-16Q-7-F replace BC847B in an existing design?

No-BC847B has V_CEO = 45V but only I_C = 100mA and h_FE = 200–450; BC817-16Q-7-F offers 5× higher continuous current (500mA) and different gain distribution. Substitution requires verification of thermal limits, drive capability, and layout clearance for higher power dissipation.

Is the SOT23 footprint of BC817-16Q-7-F compatible with JEDEC MO-203AA?

Yes-the device uses the standard SOT23 outline per JEDEC MO-203AA, with dimensions matching Diodes' published SOT23 package drawing: 2.90mm length, 1.30mm width, 1.03mm height, and 0.95mm lead pitch. Pad layout follows IPC-7351B density level A recommendations.

Does BC817-16Q-7-F require derating above 25°C ambient temperature?

Yes-power dissipation must be linearly derated above 25°C using R_θJA = 403°C/W: maximum allowable P_D = 310mW − [(T_A − 25) × 0.77mW/°C]. At 85°C ambient, max P_D drops to ~170mW, requiring careful thermal design on FR-4 boards.

BC817-16Q-7-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

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

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

Power - Max:: 310 mW

Frequency - Transition:: 100MHz

Operating Temperature:: -65°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

BC817-16Q-7-F FAQ

1.How can I place an order for BC817-16Q-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for BC817-16Q-7-F 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 BC817-16Q-7-F reliable?

The price and inventory of BC817-16Q-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC817-16Q-7-F is usually 5 days.

3.What payment methods are accepted for BC817-16Q-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC817-16Q-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC817-16Q-7-F?

BC817-16Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC817-16Q-7-F 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 BC817-16Q-7-F?

For technical support, including BC817-16Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC817-16Q-7-F requirements.

6.How does Aetrix verify that BC817-16Q-7-F is sourced from the original manufacturer or authorized distributors?

All BC817-16Q-7-F 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 BC817-16Q-7-F meets industry standards.

7.What is the process for return or replacement of BC817-16Q-7-F?

All BC817-16Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BC817-16Q-7-F, 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 BC817-16Q-7-F part is unused and in its original packaging.

Return procedure for BC817-16Q-7-F:

1.Submit a request within 90 days.

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

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