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

Diodes Incorporated BC817-16-7

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

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Part No.:: BC817-16-7

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

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

Datasheet:: BC817-16-7.pdf

Description:: TRANS NPN 45V 0.8A SOT-23-3

Quantity:: RFQ Add To RFQ list

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Inventory:4,111

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Product details

Overview

BC817-16-7 from Diodes Incorporated is a 45 V, 500 mA NPN small-signal transistor in SOT23 package, featuring h_FE = 100–250 at I_C = 100 mA, V_CE(SAT) ≤ 0.7 V at I_C = 500 mA/I_B = 50 mA, and f_T = 100 MHz - used for switching and audio-frequency amplification in automotive and industrial control circuits.

For engineers reviewing the BC817-16-7 datasheet, BC817-16-7 pinout, BC817-16-7 application, or BC817-16-7 equivalent, key selection criteria include DC current gain binning (16 = h_FE 100–250), AEC-Q101 qualification, SOT23 thermal resistance (R_θJA = 403 °C/W), and complementary PNP availability (BC807).

Technical Context

This NPN bipolar junction transistor employs epitaxial planar die construction for stable gain and low leakage. It operates with V_CEO = 45 V, I_C = 500 mA continuous, and supports pulsed base drive up to I_BM = 200 mA - enabling robust switching in relay drivers and logic-level translators.

Designed for automatic insertion and RoHS-compliant manufacturing, it delivers 8 kV HBM ESD immunity and operates across –65 °C to +150 °C. Its 310 mW power dissipation and 12 pF C_CBO support stable AF amplifier stages and low-power digital interface buffering.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	45 V - Maximum safe collector-emitter voltage before breakdown in common-emitter configuration
I_C	500 mA - Continuous collector current rating defining maximum load drive capability
h_FE	100–250 @ V_CE = 1.0 V, I_C = 100 mA - Gain binning ensures predictable base drive requirements
V_CE(SAT)	≤ 0.7 V @ I_C = 500 mA, I_B = 50 mA - Low saturation voltage minimizes conduction loss in switch mode
f_T	100 MHz - Unity-gain bandwidth enabling stable operation up to audio frequencies
R_θJA	403 °C/W - Thermal resistance on FR-4 PCB defines max ambient temperature for full-power operation
ESD HBM	8,000 V - Robust electrostatic discharge immunity suitable for automated assembly environments

Pinout & Package

SOT23 plastic surface-mount package with matte tin-plated leads; 0.008 g mass; UL 94V-0 flammability rating; moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current sink terminal	Reference node for biasing; connects to ground or low-side return path
2 (Base)	Control input	Accepts current-limited drive to modulate collector current; requires series resistor for digital logic interfacing
3 (Collector)	Current source terminal	Drives loads such as relays, LEDs, or downstream transistor bases; connects to positive supply via load

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control modules and body electronics
Lead-free & halogen-free	Meets EU RoHS 2011/65/EU and "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb)
Epitaxial planar construction	Ensures tight h_FE distribution and low V_CE(SAT) variation across production lots
Complementary PNP pair	BC807 series available for push-pull and differential amplifier designs

Applications

Automotive Door Module

Industrial PLC Input Stage

Use Scenario: Driving window lift motor enable signals and mirror position feedback switches.

IC Role / Device Role / Timing Role: NPN switch controlling 12 V relay coils and optocoupler inputs.

Use Value: AEC-Q101 qualification and –65 °C to +150 °C operation ensure reliability in under-hood environments.

Use Scenario: Level-shifting 24 V field sensor outputs to 3.3 V/5 V microcontroller GPIOs.

IC Role / Device Role / Timing Role: Discrete interface transistor converting high-voltage industrial signals to logic-compatible levels.

Use Value: 45 V V_CEO and 8 kV HBM ESD withstand prevent latch-up or damage during factory wiring.

Consumer Audio Amplifier

Power Supply Enable Circuit

Use Scenario: Low-noise preamplifier stage in portable speaker systems.

IC Role / Device Role / Timing Role: Small-signal amplifier with f_T = 100 MHz supporting full audio band fidelity.

Use Value: 100–250 h_FE bin enables consistent gain matching without trimming resistors.

Use Scenario: Enabling auxiliary 5 V rail in multi-output AC/DC adapters.

IC Role / Device Role / Timing Role: High-side switch driver controlling external MOSFET gate via open-collector output.

Use Value: 500 mA I_C and 0.7 V V_CE(SAT) minimize dropout and heat generation in always-on control paths.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN small-signal transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC817-25-7	Higher h_FE bin (160–400) at same V_CEO/I_C	Better suited for low-base-drive applications like battery-powered sensors	Select when lower I_B is required to reduce MCU GPIO loading
MMBT3904LT1G	Same SOT23 package but h_FE = 100–300; no AEC-Q101 qualification	General-purpose use only; not rated for automotive temperature extremes	Choose for cost-sensitive consumer products where extended temperature range is unnecessary

Compared with BC817-25-7 and MMBT3904LT1G, the BC817-16-7 offers tighter h_FE control for predictable base-resistor sizing and AEC-Q101 assurance for automotive deployment - making it optimal for safety-critical switching where gain consistency and qualification matter.

Availability

BC817-16-7 is available at Aetrix Electronics and suitable for automotive door modules, industrial PLC input stages, consumer audio amplifiers, and power supply enable circuits requiring stable component supply across extended temperature ranges and high-reliability manufacturing.

Supply support for BC817-16-7 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, headquartered in Plano, Texas, with design, marketing, and sales operations worldwide.

The BC817 series belongs to Diodes' broad portfolio of general-purpose transistors engineered for high-volume, high-reliability applications in automotive, industrial, and consumer electronics - emphasizing AEC-Q101 compliance, green packaging, and automated assembly compatibility.

FAQ

What is the maximum operating temperature for BC817-16-7?

The BC817-16-7 is rated for junction and storage temperatures from –65 °C to +150 °C. Its thermal resistance R_θJA = 403 °C/W on standard FR-4 PCB means ambient temperature must be limited to ~85 °C when dissipating 310 mW continuously - derating applies above 25 °C per the datasheet curve.

Is BC817-16-7 pin-compatible with BC817-25-7 or BC817-40-7?

Yes - all BC817 variants share identical SOT23 pinout (Emitter-Base-Collector on pins 1–2–3), mechanical dimensions, and absolute maximum ratings. Only DC current gain (h_FE) differs: BC817-16-7 is binned 100–250, BC817-25-7 is 160–400, and BC817-40-7 is 250–600 - allowing direct substitution where gain tolerance permits.

Does BC817-16-7 require a base resistor in switching applications?

Yes - a series base resistor is mandatory to limit I_B and prevent device damage. For 500 mA collector current with h_FE ≥ 100, minimum I_B = 5 mA is needed; with 3.3 V GPIO drive, a 470 Ω resistor sets I_B ≈ 6.2 mA, ensuring saturation while avoiding excessive base current.

Can BC817-16-7 replace a 2N3904 in existing designs?

Yes - both are NPN SOT23 transistors with similar V_CEO, I_C, and f_T. However, BC817-16-7 offers higher I_C (500 mA vs. 200 mA), AEC-Q101 qualification, and tighter h_FE binning. Verify V_CE(SAT) and thermal layout, as BC817-16-7's higher power dissipation may require updated copper pour.

BC817-16-7 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:: Discontinued at Digi-Key

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 800 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:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

BC817-16-7 FAQ

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

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

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

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

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

Note: Certain payment methods may incur a processing fee.

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

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

Once your BC817-16-7 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 BC817-16-7?

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

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

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

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

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

Return procedure for BC817-16-7:

1.Submit a request within 90 days.

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

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