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onsemi NSVBC818-40LT1G
- Part No.:
- NSVBC818-40LT1G
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
NSVBC818-40LT1G.pdf
- Description:
- TRANS NPN 25V 0.5A SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,579
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Product details
Overview
NSVBC818-40LT1G from onsemi is an AEC-Q101 qualified NPN general-purpose transistor in SOT-23 package, rated for VCEO = 25 V, IC = 500 mA, and hFE = 250–600 at IC = 100 mA, used in automotive signal switching and load control circuits.
For engineers reviewing the NSVBC818-40LT1G datasheet, pinout, applications, or equivalent options, key selection criteria include DC current gain range, saturation voltage under 500 mA drive, thermal resistance on FR-5 board, and automotive qualification status.
Technical Context
This NPN bipolar junction transistor operates in linear or saturated switching mode with guaranteed hFE ≥ 250 at IC = 100 mA and VCE = 1.0 V, and supports continuous collector current up to 500 mA with VCE(sat) ≤ 0.7 V at IC/IB = 10.
It features low output capacitance (Cobo = 10 pF), fT = 100 MHz, and is optimized for stable performance across −55°C to +150°C junction temperature, meeting AEC-Q101 stress test requirements for automotive electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 25 V - Maximum safe collector-emitter voltage before breakdown under open-base condition |
| IC (continuous) | 500 mA - Continuous collector current rating defining maximum steady-state load drive capability |
| hFE range | 250–600 - DC current gain variation at IC = 100 mA, VCE = 1 V, critical for bias stability in amplifier/switch designs |
| VCE(sat) | ≤ 0.7 V - Collector-emitter saturation voltage at IC = 500 mA, IB = 50 mA, directly impacts power loss in switching applications |
| fT | 100 MHz - Transition frequency indicating usable bandwidth for small-signal amplification or RF switching |
| RJA (FR-5) | 556 °C/W - Junction-to-ambient thermal resistance on standard FR-5 PCB, determines max power dissipation at ambient temperature |
Pinout & Package
SOT-23 (TO-236) surface-mount package, 2.90 × 1.30 × 1.00 mm, 3-pin plastic case (Case 318, Style 6), Pb-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control terminal for forward-biasing the BE junction; requires ~1.2 V VBE(on) to saturate at 500 mA IC |
| 2 | Emitter | Current return path; connected to ground or low-side reference in common-emitter configurations |
| 3 | Collector | High-side load connection point; handles up to 500 mA continuous current with 25 V max standoff |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Pb-free, Halogen Free/BFR Free | Complies with RoHS Directive 2011/65/EU and JEDEC JS709E material restrictions |
| Low VCE(sat) | ≤ 0.7 V at full-rated 500 mA enables efficient low-voltage switching in 3.3 V/5 V systems |
| High hFE consistency | Guaranteed 250–600 range ensures predictable base drive requirements across production lots |
Applications
| Automotive Door Module Control | Industrial PLC Output Stage |
|---|---|
Use Scenario: Driving window lift motors, mirror actuators, and lock solenoids in 12 V vehicle architectures. IC Role / Device Role / Timing Role: NPN switch controlling ground-return loads via microcontroller GPIO. Use Value: Low VCE(sat) minimizes heat generation during sustained 300–500 mA actuation pulses. | Use Scenario: Interfacing 24 V DC digital outputs to relay coils or indicator LEDs in factory automation controllers. IC Role / Device Role / Timing Role: General-purpose interface transistor providing level-shifted, current-amplified output drive. Use Value: 25 V VCEO and 500 mA IC support direct connection to industrial I/O rails without external protection. |
| Consumer Appliance Motor Driver | Medical Infusion Pump Valve Control |
Use Scenario: Switching small DC brush motors in washing machine dispensers or HVAC dampers. IC Role / Device Role / Timing Role: Low-side switch enabling PWM-controlled motor speed regulation. Use Value: 100 MHz fT ensures clean switching edges up to 20 kHz PWM frequencies with minimal distortion. | Use Scenario: Controlling solenoid valves in battery-powered portable infusion pumps requiring high reliability. IC Role / Device Role / Timing Role: Safety-critical load switch with validated AEC-Q101 qualification and −55°C to +150°C operation. Use Value: Extended temperature range and PPAP capability support ISO 13485-compliant medical device manufacturing. |
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 |
|---|---|---|---|
| BC818-40LT1G | Same die, non-automotive grade; no AEC-Q101 or PPAP documentation | Not qualified for automotive safety-critical modules or OEM production programs | Select NSVBC818-40LT1G when AEC-Q101 compliance and traceable automotive sourcing are required |
| MMBT4401LT1G | Higher VCEO = 40 V, lower hFE min = 100, same SOT-23 package | Better suited for higher-voltage 24 V industrial systems where gain margin is less critical | Choose MMBT4401LT1G when system voltage exceeds 25 V but automotive qualification is not needed |
Compared with BC818-40LT1G and MMBT4401LT1G, the NSVBC818-40LT1G uniquely combines AEC-Q101 qualification, 250–600 hFE range, and 25 V/500 mA ratings-making it optimal for cost-sensitive automotive body electronics where reliability and supply chain traceability are mandatory.
Availability
NSVBC818-40LT1G is available at Aetrix Electronics and suitable for automotive body control modules, industrial programmable logic controllers, and medical infusion pump valve drivers requiring stable component supply and long-term lifecycle support.
Supply support for NSVBC818-40LT1G 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 (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and IoT applications.
The BC818 family targets cost-effective, high-reliability discrete transistors for automotive signal conditioning and load switching, with NSV-prefix variants specifically engineered for AEC-Q101 compliance and PPAP-capable manufacturing.
FAQ
What is the maximum continuous collector current rating for NSVBC818-40LT1G?
The NSVBC818-40LT1G has a maximum continuous collector current (IC) rating of 500 mA at TA = 25°C on FR-5 board. Derating applies above 25°C at 1.8 mW/°C, limiting usable current in high-temperature environments. This rating defines its suitability for driving medium-power loads like relays, small motors, and LED arrays in automotive and industrial systems.
Is NSVBC818-40LT1G qualified for automotive applications?
Yes, NSVBC818-40LT1G is AEC-Q101 qualified and PPAP capable, with validation across temperature cycling, humidity testing, and mechanical shock per automotive reliability standards. The "NSV" prefix explicitly denotes automotive-grade manufacturing controls, making NSVBC818-40LT1G appropriate for body electronics, lighting control, and ADAS subsystems where qualification evidence is contractually required.
What is the typical DC current gain (hFE) of NSVBC818-40LT1G at 100 mA collector current?
The NSVBC818-40LT1G exhibits a guaranteed hFE range of 250 to 600 at IC = 100 mA and VCE = 1.0 V. This wide but controlled spread allows robust bias design across production lots while maintaining predictable base drive requirements-critical for consistent switching behavior in automotive microcontroller interfaces.
Does NSVBC818-40LT1G have a specified saturation voltage at full-rated current?
Yes, NSVBC818-40LT1G specifies VCE(sat) ≤ 0.7 V at IC = 500 mA and IB = 50 mA (IC/IB = 10). This value directly determines conduction loss and self-heating during sustained on-state operation, supporting thermally efficient designs in space-constrained automotive modules where thermal management is limited.
What package type and pin configuration does NSVBC818-40LT1G use?
NSVBC818-40LT1G uses the SOT-23 (TO-236) package (Case 318, Style 6) with pin 1 = Base, pin 2 = Emitter, pin 3 = Collector. Its 2.90 × 1.30 × 1.00 mm footprint enables high-density PCB layouts, and the standardized pinout ensures compatibility with existing SOT-23 assembly tooling and reflow profiles used in automotive electronics manufacturing.
NSVBC818-40LT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- 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):
- 25 V
- Vce Saturation (Max) @ Ib, Ic:
- 700mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 250 @ 100mA, 1V
- Power - Max:
- 225 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
NSVBC818-40LT1G FAQ
1.How can I place an order for NSVBC818-40LT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NSVBC818-40LT1G 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 NSVBC818-40LT1G reliable?
The price and inventory of NSVBC818-40LT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NSVBC818-40LT1G is usually 5 days.
3.What payment methods are accepted for NSVBC818-40LT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NSVBC818-40LT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NSVBC818-40LT1G?
NSVBC818-40LT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NSVBC818-40LT1G 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 NSVBC818-40LT1G?
For technical support, including NSVBC818-40LT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NSVBC818-40LT1G requirements.
6.How does Aetrix verify that NSVBC818-40LT1G is sourced from the original manufacturer or authorized distributors?
All NSVBC818-40LT1G 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 NSVBC818-40LT1G meets industry standards.
7.What is the process for return or replacement of NSVBC818-40LT1G?
All NSVBC818-40LT1G units undergo pre-shipment inspection (PSI). If there is an issue with NSVBC818-40LT1G, 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 NSVBC818-40LT1G part is unused and in its original packaging.
Return procedure for NSVBC818-40LT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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