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

onsemi SBC817-16LT3

Name: SBC817-16LT3
Brand: onsemi
SKU: SBC817-16LT3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SBC817-16LT3

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: SBC817-16LT3.pdf

Description:: TRANS NPN 45V 0.5A SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:10,000

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Product details

Overview

SBC817-16LT3 from onsemi is an AEC-Q101 qualified NPN silicon general-purpose transistor in SOT-23 package, rated for V_CEO = 45 V, I_C = 500 mA, and h_FE = 100–250 (at I_C = 100 mA, V_CE = 1.0 V), used for low-voltage switching and amplification in automotive body control modules.

For engineers reviewing the SBC817-16LT3 datasheet, pinout, applications, or equivalent options, key selection criteria include DC current gain range, saturation voltage at 500 mA, thermal resistance on FR-5 board, AEC-Q101 qualification status, and Pb-free SOT-23 packaging compliance.

Technical Context

This device operates as a discrete NPN bipolar junction transistor with fixed gain binning (16-series), optimized for linear amplification and saturated switching in 12 V automotive subsystems. Its V_BE(on) ≤ 1.2 V at I_C = 500 mA and V_CE(sat) ≤ 0.7 V under same conditions enable efficient drive of relays and LEDs without external biasing complexity.

Thermal performance is defined for two mounting conditions: 225 mW dissipation on FR-5 board (R_JA = 556 °C/W) and 300 mW on alumina substrate (R_JA = 417 °C/W). Junction temperature range spans −65 °C to +150 °C, supporting under-hood deployment.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	45 V - Maximum collector-emitter voltage before breakdown; sets upper rail limit for 12 V/24 V automotive logic-level switching.
I_C (continuous)	500 mA - Continuous collector current handling; supports driving small solenoids, indicator LEDs, or logic-level MOSFET gates.
h_FE range	100–250 @ I_C = 100 mA, V_CE = 1.0 V - Gain bin ensures predictable base drive requirements across production lots.
V_CE(sat)	≤ 0.7 V @ I_C = 500 mA, I_B = 50 mA - Low saturation voltage minimizes power loss and self-heating during switch-on state.
f_T	100 MHz - Current-gain bandwidth product; sufficient for audio-frequency amplification and PWM signal buffering up to ~10 MHz.
R_JA (FR-5)	556 °C/W - Thermal resistance defines maximum ambient temperature rise per watt dissipated on standard PCB material.

Pinout & Package

SBC817-16LT3 uses the SOT-23 (Case 318, Style 6) surface-mount plastic package, measuring 2.90 mm × 1.30 mm × 1.00 mm, with gull-wing leads and Pb-free matte tin plating.

Pin/Terminal	Circuit Role	Design Meaning
1 (Base)	Control input terminal	Receives forward-biased current to turn on transistor; requires series resistor to limit I_B based on h_FE and load current.
2 (Emitter)	Current return path	Connected to ground or low-side reference; forms common node for current sensing and feedback in emitter-follower configurations.
3 (Collector)	Output current terminal	Switches high-side loads when used in common-emitter mode; must be routed with adequate copper area for thermal relief at 500 mA.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control, lighting, and body electronics per stress test requirements.
Pb-free, Halogen Free/BFR Free	Complies with RoHS Directive 2011/65/EU and JESD204B; enables use in environmentally regulated OEM supply chains.
High h_FE consistency	Bin-coded "16" guarantees minimum h_FE = 100 at 100 mA, reducing design margin uncertainty in base-drive calculations.
Low V_CE(sat)	Guaranteed ≤ 0.7 V at full-rated 500 mA collector current, enabling >98% efficiency in 5 V logic-driven switching circuits.

Applications

Automotive Interior Lighting Control	Industrial Sensor Signal Conditioning
Use Scenario: Driving 12 V LED strings in door handle illumination and map lights. IC Role / Device Role / Timing Role: NPN switch controlling current path between 12 V rail and LED cathode. Use Value: V_CE(sat) ≤ 0.7 V limits power loss to <150 mW at 200 mA, eliminating need for heatsinking in confined cabin modules.	Use Scenario: Amplifying low-level analog output from thermistor-based temperature sensors. IC Role / Device Role / Timing Role: Common-emitter amplifier stage providing 20–30 dB voltage gain with DC coupling. Use Value: h_FE = 100–250 ensures stable bias point across temperature, minimizing drift in 0–100 °C industrial monitoring ranges.
Consumer Appliance Motor Driver Stage	Power Supply Enable Switch
Use Scenario: Controlling small DC brush motors in coffee makers and HVAC dampers. IC Role / Device Role / Timing Role: Low-side switch interfacing microcontroller GPIO to motor H-bridge enable input. Use Value: I_C = 500 mA rating supports peak startup currents while maintaining safe SOA margins per Figure 24.	Use Scenario: Enabling/disabling auxiliary 3.3 V LDO outputs in multi-rail embedded systems. IC Role / Device Role / Timing Role: High-gain switch turning on PMOS pass transistor gate via pull-down configuration. Use Value: V_BE(on) ≤ 1.2 V ensures reliable turn-on from 3.3 V MCU outputs even with 100 Ω series resistance.

Automotive Interior Lighting Control

Industrial Sensor Signal Conditioning

Use Scenario: Driving 12 V LED strings in door handle illumination and map lights.

IC Role / Device Role / Timing Role: NPN switch controlling current path between 12 V rail and LED cathode.

Use Value: V_CE(sat) ≤ 0.7 V limits power loss to <150 mW at 200 mA, eliminating need for heatsinking in confined cabin modules.

Use Scenario: Amplifying low-level analog output from thermistor-based temperature sensors.

IC Role / Device Role / Timing Role: Common-emitter amplifier stage providing 20–30 dB voltage gain with DC coupling.

Use Value: h_FE = 100–250 ensures stable bias point across temperature, minimizing drift in 0–100 °C industrial monitoring ranges.

Consumer Appliance Motor Driver Stage

Power Supply Enable Switch

Use Scenario: Controlling small DC brush motors in coffee makers and HVAC dampers.

IC Role / Device Role / Timing Role: Low-side switch interfacing microcontroller GPIO to motor H-bridge enable input.

Use Value: I_C = 500 mA rating supports peak startup currents while maintaining safe SOA margins per Figure 24.

Use Scenario: Enabling/disabling auxiliary 3.3 V LDO outputs in multi-rail embedded systems.

IC Role / Device Role / Timing Role: High-gain switch turning on PMOS pass transistor gate via pull-down configuration.

Use Value: V_BE(on) ≤ 1.2 V ensures reliable turn-on from 3.3 V MCU outputs even with 100 Ω series resistance.

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
BC817-16LT3G	Same electrical specs and SOT-23 package; differs only in marking ("6A") and tape/reel packaging (10,000 pcs vs. SBC817-16LT3's unspecified quantity).	No functional difference; identical AEC-Q101 qualification and thermal ratings.	Select BC817-16LT3G for volume procurement where onsemi's standard Pb-free tape-and-reel logistics apply.
ZTX653	Higher V_CEO = 60 V and h_FE = 200–450, but larger SOT-89 package and no AEC-Q101 certification.	Suitable for industrial 24 V systems requiring higher voltage margin, but not for automotive qualified designs.	Choose ZTX653 only if V_CEO > 45 V is mandatory and automotive qualification is unnecessary.

Compared with BC817-16LT3G, SBC817-16LT3 offers identical performance with S-prefix denoting automotive traceability; versus ZTX653, it trades voltage headroom and gain for AEC-Q101 compliance and smaller footprint-critical for space-constrained automotive ECUs.

Availability

SBC817-16LT3 is available at Aetrix Electronics and suitable for automotive lighting control, industrial sensor interfaces, consumer appliance motor drivers, and power supply enable circuits requiring stable component supply with AEC-Q101 assurance.

Supply support for SBC817-16LT3 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

onsemi (Nasdaq: ON) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

SBC817-16LT3 belongs to the BC817/SBC817 family of AEC-Q101-qualified general-purpose transistors designed specifically for cost-sensitive, high-reliability automotive body electronics and industrial control systems.

FAQ

What is the maximum operating temperature for SBC817-16LT3?

The SBC817-16LT3 has a specified junction and storage temperature range of −65 °C to +150 °C. This allows operation in under-hood automotive environments where ambient temperatures may reach 125 °C, provided PCB thermal design maintains junction temperature within limit using its R_JA = 556 °C/W rating on FR-5 board. The SBC817-16LT3 must not exceed +150 °C at the die level.

Is SBC817-16LT3 pin-compatible with BC817-16LT1G?

Yes, SBC817-16LT3 and BC817-16LT1G share identical SOT-23 pinout (Base–Emitter–Collector on pins 1–2–3), mechanical dimensions, and electrical specifications. The only differences are part prefix (S-prefix denotes automotive traceability), marking code ("6A"), and packaging format (tape-and-reel quantity). The SBC817-16LT3 retains full functional and layout compatibility with BC817-16LT1G.

Does SBC817-16LT3 require a base resistor in switching applications?

Yes, SBC817-16LT3 requires an external base resistor to limit I_B and ensure saturation. For example, driving 500 mA load with h_FE = 100 demands ≥5 mA base current; with 3.3 V MCU output and V_BE(on) ≈ 0.7 V, a 470 Ω resistor delivers ~5.3 mA. Omitting this resistor risks thermal runaway or incomplete turn-on. The SBC817-16LT3 datasheet specifies I_B = 50 mA for guaranteed V_CE(sat) ≤ 0.7 V.

What does the "S" prefix in SBC817-16LT3 signify?

The "S" prefix in SBC817-16LT3 indicates automotive-grade qualification per AEC-Q101, PPAP capability, and unique site/control change tracking for OEM traceability. It distinguishes the part from commercial-grade BC817 variants while maintaining identical electrical and thermal performance. All SBC817-16LT3 units undergo additional stress testing and lot-level documentation required by automotive Tier 1 suppliers. The SBC817-16LT3 is not merely a marking variant-it is a certified automotive component.

Can SBC817-16LT3 replace BC847B in existing designs?

No, SBC817-16LT3 is not a direct replacement for BC847B due to key differences: BC847B has V_CEO = 45 V but lower I_C = 100 mA and h_FE = 200–450, whereas SBC817-16LT3 supports 500 mA continuous current with h_FE = 100–250. Substituting SBC817-16LT3 into a BC847B circuit may cause overdrive or thermal overstress if layout lacks thermal relief. The SBC817-16LT3 is optimized for higher-current switching, not small-signal amplification.

SBC817-16LT3 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

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

Packaging:: Bulk

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:: 300 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 (TO-236)

SBC817-16LT3 FAQ

1.How can I place an order for SBC817-16LT3 through Aetrix?

Please submit a Request for Quotation (RFQ) for SBC817-16LT3 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 SBC817-16LT3 reliable?

The price and inventory of SBC817-16LT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBC817-16LT3 is usually 5 days.

3.What payment methods are accepted for SBC817-16LT3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBC817-16LT3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SBC817-16LT3?

SBC817-16LT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SBC817-16LT3 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 SBC817-16LT3?

For technical support, including SBC817-16LT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBC817-16LT3 requirements.

6.How does Aetrix verify that SBC817-16LT3 is sourced from the original manufacturer or authorized distributors?

All SBC817-16LT3 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 SBC817-16LT3 meets industry standards.

7.What is the process for return or replacement of SBC817-16LT3?

All SBC817-16LT3 units undergo pre-shipment inspection (PSI). If there is an issue with SBC817-16LT3, 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 SBC817-16LT3 part is unused and in its original packaging.

Return procedure for SBC817-16LT3:

1.Submit a request within 90 days.

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

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