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

onsemi NSVT1418LT1G

Name: NSVT1418LT1G
Brand: onsemi
SKU: NSVT1418LT1G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NSVT1418LT1G

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: NSVT1418LT1G.pdf

Description:: TRANS PNP 160V 1A SOT23-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

NSVT1418LT1G from onsemi is a PNP bipolar junction transistor designed for high-side switching in automotive power control circuits, featuring −160 V V_CEO, −1 A continuous collector current, −0.08 V typical V_CE(sat) at I_C = −250 mA / I_B = −50 mA, 120 MHz f_T, and AEC−Q101 qualification.

For engineers reviewing the NSVT1418LT1G datasheet, pinout, applications, or equivalent options, this device is selected for low-loss, high-reliability DC load switching where tight saturation voltage, thermal robustness (T_j = 150 °C), and automotive-grade qualification are mandatory design requirements.

Technical Context

This PNP transistor operates as a saturated switch with fixed-base drive topology, optimized for fast turn-on (90 ns) and controlled fall time (70 ns) in 12 V/24 V automotive systems. Its −180 V V_CBO and −6 V V_EBO support robust voltage margin in noisy supply rails.

The device uses SOT−23 package with verified pin configuration (Pin 1: Base, Pin 2: Emitter, Pin 3: Collector), enabling compact PCB layout. Thermal performance is specified for mounting on 250 mm² ceramic substrate, delivering 0.42 W P_C at T_A = 25 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−160 V - Withstands full automotive battery transients without breakdown
I_C (continuous)	−1 A - Supports medium-power loads such as LED drivers and solenoid controls
V_CE(sat) (typ)	−0.08 V @ I_C = −250 mA / I_B = −50 mA - Minimizes conduction loss and self-heating
f_T	120 MHz - Enables stable operation beyond typical automotive switching frequencies
h_FE (min)	90 @ I_C = −10 mA - Ensures reliable base drive margin across temperature
C_ob	11 pF @ V_CB = −10 V - Limits capacitive coupling in high-speed switching nodes
P_C	0.42 W - Defined for surface mount on 250 mm² ceramic substrate, not FR-4

Pinout & Package

SOT−23 (TO−236) package: 2.90 × 1.30 × 1.00 mm body, 1.90 mm lead pitch, Pb−free/Halogen−free construction per RoHS.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Base	Control input requiring −25 mA to −50 mA drive for full saturation
Pin 2	Emitter	Connected to higher potential rail (e.g., battery +); current flows into this terminal
Pin 3	Collector	Switched output node tied to load; sinks current when active

Key Features

Feature	Design Value
AEC−Q101 qualified	Validated for automotive underhood applications including temperature cycling, humidity, and mechanical shock
Ultra-low V_CE(sat)	Reduces power dissipation by >40% vs. standard PNP transistors at 250 mA load
High-speed switching	90 ns t_on/70 ns t_f enables PWM dimming up to ~1 MHz without excessive switching loss
Thermal robustness	Junction rated to 150 °C with defined derating curve for ceramic substrate mounting
Miniaturized SOT−23	Enables placement adjacent to microcontrollers or CAN transceivers in space-constrained ECUs

Applications

Automotive High-Side Load Switch	LED Headlamp Driver
Use Scenario: Controlling 12 V incandescent or resistive loads (e.g., HVAC actuators, door locks) directly from MCU GPIO via base resistor. IC Role / Device Role / Timing Role: PNP high-side switch providing galvanic isolation between MCU logic and battery rail. Use Value: −0.08 V V_CE(sat) limits voltage drop to <100 mV, preserving load regulation while meeting AEC−Q101 reliability targets.	Use Scenario: Driving multi-segment LED arrays in adaptive front lighting systems with PWM dimming. IC Role / Device Role / Timing Role: Constant-current switch stage modulated at ≥500 Hz to avoid visible flicker. Use Value: 120 MHz f_T and 70 ns fall time ensure clean PWM edges, minimizing LED current overshoot and EMI.
Infotainment Power Sequencing	Body Control Module (BCM) Output
Use Scenario: Enabling/disabling audio amplifier supplies or display backlight rails during system boot/shutdown sequences. IC Role / Device Role / Timing Role: Controlled power rail switch synchronized to MCU reset and wake-up signals. Use Value: −160 V V_CEO withstands load-dump transients up to ISO 7637−2 Pulse 5a, eliminating need for external TVS.	Use Scenario: Driving window lift motors, mirror adjusters, or seat position sensors in centralized BCM designs. IC Role / Device Role / Timing Role: Medium-current (≤1 A) switched output with diagnostic feedback via base monitoring. Use Value: h_FE ≥ 90 at −10 mA ensures stable turn-on even at −40 °C ambient, supporting cold-cranking operation.

Automotive High-Side Load Switch

LED Headlamp Driver

Use Scenario: Controlling 12 V incandescent or resistive loads (e.g., HVAC actuators, door locks) directly from MCU GPIO via base resistor.

IC Role / Device Role / Timing Role: PNP high-side switch providing galvanic isolation between MCU logic and battery rail.

Use Value: −0.08 V V_CE(sat) limits voltage drop to <100 mV, preserving load regulation while meeting AEC−Q101 reliability targets.

Use Scenario: Driving multi-segment LED arrays in adaptive front lighting systems with PWM dimming.

IC Role / Device Role / Timing Role: Constant-current switch stage modulated at ≥500 Hz to avoid visible flicker.

Use Value: 120 MHz f_T and 70 ns fall time ensure clean PWM edges, minimizing LED current overshoot and EMI.

Infotainment Power Sequencing

Body Control Module (BCM) Output

Use Scenario: Enabling/disabling audio amplifier supplies or display backlight rails during system boot/shutdown sequences.

IC Role / Device Role / Timing Role: Controlled power rail switch synchronized to MCU reset and wake-up signals.

Use Value: −160 V V_CEO withstands load-dump transients up to ISO 7637−2 Pulse 5a, eliminating need for external TVS.

Use Scenario: Driving window lift motors, mirror adjusters, or seat position sensors in centralized BCM designs.

IC Role / Device Role / Timing Role: Medium-current (≤1 A) switched output with diagnostic feedback via base monitoring.

Use Value: h_FE ≥ 90 at −10 mA ensures stable turn-on even at −40 °C ambient, supporting cold-cranking operation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP high-side switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBT4403LT1G	Lower V_CEO (−40 V), higher V_CE(sat) (−0.75 V typ), no AEC−Q101 qualification	Restricted to non-automotive 5 V/3.3 V logic-level systems; unsuitable for battery-rail switching	Select only for cost-sensitive consumer applications with <40 V supply and no automotive compliance requirement
DXT3906-7-F	Higher V_CEO (−100 V), comparable V_CE(sat) (−0.12 V), AEC−Q101 qualified but SOT-563 (dual) package	Requires dual-device layout for single-channel use; lower power dissipation (0.3 W) limits current capability	Consider when footprint allows dual-SOT-563 or when dual-channel integration reduces BOM count

Compared with MMBT4403LT1G and DXT3906-7-F, the NSVT1418LT1G uniquely combines −160 V rating, ultra-low −0.08 V saturation voltage, and AEC−Q101 qualification in a single SOT−23 footprint-enabling direct replacement of discrete solutions in automotive high-side switches without derating or layout change.

Availability

NSVT1418LT1G is available at Aetrix Electronics and suitable for automotive electronic control units, LED lighting modules, and infotainment power management systems requiring stable component supply, long-term lifecycle assurance, and AEC−Q101-compliant sourcing.

Supply support for NSVT1418LT1G 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 is a global semiconductor supplier focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and IoT applications with emphasis on functional safety and reliability.

The NSVT1418LT1G belongs to onsemi's AEC−Q101-qualified bipolar transistor family engineered specifically for high-side power switching in automotive underhood and cabin modules where low saturation loss and transient robustness are critical.

FAQ

What is the maximum operating junction temperature for NSVT1418LT1G?

The NSVT1418LT1G has a maximum junction temperature (T_j) of 150 °C, validated per AEC−Q101 stress testing. This rating applies when mounted on a 250 mm² ceramic substrate per datasheet Note 1; derating is required above 25 °C ambient to maintain safe operation. The NSVT1418LT1G must not exceed this limit during continuous or pulsed operation to ensure long-term reliability in automotive environments.

Is NSVT1418LT1G pin-compatible with standard SOT−23 PNP transistors like MMBT3906?

No, NSVT1418LT1G is not pin-compatible with MMBT3906. While both use SOT−23 packages, the NSVT1418LT1G follows Style 6 pinout (Pin 1: Base, Pin 2: Emitter, Pin 3: Collector), whereas MMBT3906 uses Style 7 (Pin 1: Emitter, Pin 2: Base, Pin 3: Collector). Swapping them without PCB revision will reverse polarity and cause circuit failure. Always verify pin assignment using the official onsemi mechanical drawing CASE 318.

Does NSVT1418LT1G support pulse current higher than its DC rating?

Yes, the NSVT1418LT1G supports I_CP = −2 A for pulsed operation, as specified in Absolute Maximum Ratings. This allows brief inrush current handling (e.g., motor startup or capacitor charging) provided pulse width, duty cycle, and thermal management comply with the Safe Operating Area (SOA) curve in Figure 12 of the datasheet. Continuous operation remains limited to −1 A.

What is the guaranteed minimum h_FE for NSVT1418LT1G at −1 A collector current?

The NSVT1418LT1G does not specify h_FE at −1 A; the datasheet guarantees h_FE1 ≥ 100 at I_C = −100 mA and h_FE2 ≥ 90 at I_C = −10 mA. At −1 A, h_FE falls significantly (per Figure 4), and design must rely on forced β (I_C/I_B) = 5–10 to ensure saturation. For −1 A switching, use I_B ≥ −100 mA to maintain V_CE(sat) within spec.

Can NSVT1418LT1G be used in linear amplification applications?

No, the NSVT1418LT1G is characterized and qualified exclusively for switching operation. Its electrical specifications (e.g., V_CE(sat), t_on/t_f, SOA) and AEC−Q101 qualification are optimized for saturated on/off states-not analog gain linearity or thermal stability in Class-A/B bias. Use dedicated general-purpose or RF transistors (e.g., BC847 series) for amplification tasks.

NSVT1418LT1G 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:: PNP

Current - Collector (Ic) (Max):: 1 A

Voltage - Collector Emitter Breakdown (Max):: 160 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 25mA, 250mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 100mA, 5V

Power - Max:: 420 mW

Frequency - Transition:: 120MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3 (TO-236)

NSVT1418LT1G FAQ

1.How can I place an order for NSVT1418LT1G through Aetrix?

Please submit a Request for Quotation (RFQ) for NSVT1418LT1G 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 NSVT1418LT1G reliable?

The price and inventory of NSVT1418LT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NSVT1418LT1G is usually 5 days.

3.What payment methods are accepted for NSVT1418LT1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NSVT1418LT1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NSVT1418LT1G?

NSVT1418LT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NSVT1418LT1G 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 NSVT1418LT1G?

For technical support, including NSVT1418LT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NSVT1418LT1G requirements.

6.How does Aetrix verify that NSVT1418LT1G is sourced from the original manufacturer or authorized distributors?

All NSVT1418LT1G 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 NSVT1418LT1G meets industry standards.

7.What is the process for return or replacement of NSVT1418LT1G?

All NSVT1418LT1G units undergo pre-shipment inspection (PSI). If there is an issue with NSVT1418LT1G, 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 NSVT1418LT1G part is unused and in its original packaging.

Return procedure for NSVT1418LT1G:

1.Submit a request within 90 days.

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

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