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

onsemi NSVS50031SB3T1G

Name: NSVS50031SB3T1G
Brand: onsemi
SKU: NSVS50031SB3T1G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NSVS50031SB3T1G

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: NSVS50031SB3T1G.pdf

Description:: TRANS NPN 50V 3A 3-CPH

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Product details

Overview

NSVS50031SB3T1G from onsemi is a PNP bipolar junction transistor rated for −50 V V_CEO, −3 A I_C, with low V_CE(sat) of −140 mV at −2 A/−100 mA, high-speed switching (t_on = 35 ns), and AEC-Q101 qualification - used in automotive relay drivers and DC-DC converter output stages.

For engineers reviewing the NSVS50031SB3T1G datasheet, pinout, applications, or equivalent options, key selection criteria include verified PNP polarity, CPH3 ultra-thin package (0.9 mm height), −50 V breakdown rating, thermal performance on ceramic substrate, and automotive-grade reliability validation.

Technical Context

This device operates as a single PNP BJT optimized for high-current switching in automotive power control circuits. It delivers −3 A continuous collector current with −1.2 V V_BE(sat) at −2 A/−100 mA and supports high-speed operation via 380 MHz f_T and sub-300 ns storage time.

Designed for surface-mount use on ceramic substrates (600 mm² × 0.8 mm), it achieves 1.1 W power dissipation at T_A = 25°C and maintains stable h_FE (200–560) across −25°C to +75°C ambient, meeting AEC-Q101 stress test requirements for automotive under-hood applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50 V - Maximum safe collector-emitter voltage before breakdown in open-base configuration; defines upper limit for automotive 24 V system switch node protection.
I_C	−3 A - Continuous DC collector current capability; supports motor driver H-bridge low-side switching and relay coil drive without forced cooling.
V_CE(sat)	−140 mV @ −2 A/−100 mA - Low saturation voltage minimizes conduction loss and heat generation in high-duty-cycle power stages.
f_T	380 MHz - Gain-bandwidth product enabling fast turn-on/turn-off transitions; critical for PWM frequencies up to several hundred kHz in DC-DC converters.
t_stg	300 ns - Storage time directly impacts minimum achievable switching period; enables efficient operation above 1 MHz in resonant topologies.
P_C	1.1 W - Power dissipation rating on specified ceramic substrate; determines thermal design margin for compact automotive PCB layouts.
h_FE	200–560 @ −100 mA/−2 V - Wide DC current gain range ensures robust base drive design across temperature and production lot variation.

Pinout & Package

NSVS50031SB3T1G is housed in the CPH3 (Case 318BA) ultra-thin surface-mount package with 0.9 mm mounting height, optimized for space-constrained automotive modules and camera flash circuits.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter	Current sink terminal; connected to ground or low-side return path in PNP switch configurations.
2	Base	Control input; requires negative bias relative to emitter to enable conduction; designed for direct microcontroller GPIO or dedicated driver IC interface.
3	Collector	Power output terminal; tied to load (e.g., relay coil, motor winding) and supply rail; handles full −3 A switched current.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive temperature cycling, humidity, mechanical shock, and ESD per Rev H standard - enables use in engine control, body electronics, and ADAS subsystems.
Ultra-small CPH3 package	0.9 mm profile and 1.6 × 1.6 mm footprint reduce board area by >40% vs. SOT-23; supports miniaturized camera flash modules and compact ECUs.
Low V_CE(sat)	−140 mV at −2 A ensures <280 mW conduction loss - eliminates need for heatsinking in 5 W-class loads and improves efficiency in battery-powered systems.
High-speed switching	35 ns t_on and 22 ns t_f support clean PWM edges in 500 kHz+ DC-DC controllers - reduces EMI and improves regulation accuracy.
Pb-free / RoHS compliant	Fully halogen-free construction meets automotive ELV Directive and global environmental compliance mandates without compromising thermal or electrical performance.

Applications

Automotive Relay Driver	DC-DC Converter Output Stage
Use Scenario: Driving 12 V/24 V automotive relays in body control modules and lighting control units. IC Role / Device Role / Timing Role: PNP high-side switch controlling relay coil current; provides fast de-energization via short storage time. Use Value: −140 mV V_CE(sat) limits relay coil heating; AEC-Q101 qualification ensures 15-year field reliability in under-hood environments.	Use Scenario: Synchronous rectification or low-side switching in buck/boost converters for infotainment power rails. IC Role / Device Role / Timing Role: High-current PNP switch in non-isolated DC-DC topology; leverages 380 MHz f_T for precise duty-cycle control. Use Value: 300 ns storage time enables stable operation at 300 kHz+ switching frequency; 1.1 W dissipation supports 5 A peak loads without derating.
Camera Flash Circuit	Motor Driver Half-Bridge
Use Scenario: High-current pulse switching for xenon or LED flash in automotive rear-view cameras and ADAS vision systems. IC Role / Device Role / Timing Role: Fast-turning PNP switch delivering controlled flash current pulses; operates in pulsed mode with I_CP = −6 A. Use Value: 35 ns t_on ensures accurate flash timing; 0.9 mm CPH3 height allows integration behind thin camera bezels.	Use Scenario: Low-side switch in brushed DC motor drivers for HVAC actuators, seat adjusters, and window lift mechanisms. IC Role / Device Role / Timing Role: PNP BJT providing bidirectional current sinking in half-bridge configuration; handles stall currents up to −3 A continuously. Use Value: −50 V V_CEO withstands inductive kickback from 24 V motors; −1.2 V V_BE(sat) simplifies base drive design with standard logic-level signals.

Automotive Relay Driver

DC-DC Converter Output Stage

Use Scenario: Driving 12 V/24 V automotive relays in body control modules and lighting control units.

IC Role / Device Role / Timing Role: PNP high-side switch controlling relay coil current; provides fast de-energization via short storage time.

Use Value: −140 mV V_CE(sat) limits relay coil heating; AEC-Q101 qualification ensures 15-year field reliability in under-hood environments.

Use Scenario: Synchronous rectification or low-side switching in buck/boost converters for infotainment power rails.

IC Role / Device Role / Timing Role: High-current PNP switch in non-isolated DC-DC topology; leverages 380 MHz f_T for precise duty-cycle control.

Use Value: 300 ns storage time enables stable operation at 300 kHz+ switching frequency; 1.1 W dissipation supports 5 A peak loads without derating.

Camera Flash Circuit

Motor Driver Half-Bridge

Use Scenario: High-current pulse switching for xenon or LED flash in automotive rear-view cameras and ADAS vision systems.

IC Role / Device Role / Timing Role: Fast-turning PNP switch delivering controlled flash current pulses; operates in pulsed mode with I_CP = −6 A.

Use Value: 35 ns t_on ensures accurate flash timing; 0.9 mm CPH3 height allows integration behind thin camera bezels.

Use Scenario: Low-side switch in brushed DC motor drivers for HVAC actuators, seat adjusters, and window lift mechanisms.

IC Role / Device Role / Timing Role: PNP BJT providing bidirectional current sinking in half-bridge configuration; handles stall currents up to −3 A continuously.

Use Value: −50 V V_CEO withstands inductive kickback from 24 V motors; −1.2 V V_BE(sat) simplifies base drive design with standard logic-level signals.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
NSVS50030SB3T1G	NPN polarity; identical CPH3 package, same V_CEO/I_C/V_CE(sat) ratings but complementary switching behavior.	Used where NPN high-side or low-side active pull-down is required instead of PNP sourcing.	Select NSVS50030SB3T1G only when circuit topology demands NPN configuration - not a drop-in replacement for NSVS50031SB3T1G.
ZXTN2012ZTA	Higher V_CEO (−60 V), lower I_C (−2 A), SOT-23 package; no AEC-Q101 qualification.	Suitable for industrial or consumer DC-DC converters where automotive qualification is not mandated.	Choose ZXTN2012ZTA for cost-sensitive non-automotive designs requiring higher voltage margin but accepting reduced current and reliability validation.

Compared with NSVS50031SB3T1G, NSVS50030SB3T1G offers identical form-factor and electrical specs but reversed polarity - requiring schematic and layout changes; ZXTN2012ZTA trades automotive qualification and current capacity for broader voltage headroom and smaller footprint in non-automotive use cases.

Availability

NSVS50031SB3T1G is available at Aetrix Electronics and suitable for automotive relay drivers, DC-DC converter output stages, and camera flash circuits requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant traceability.

Supply support for NSVS50031SB3T1G 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.

NSVS50031SB3T1G belongs to onsemi's automotive-qualified bipolar transistor family, engineered specifically for high-reliability power switching in harsh-environment vehicle subsystems.

FAQ

What is the polarity and transistor type of NSVS50031SB3T1G?

NSVS50031SB3T1G is a PNP bipolar junction transistor. Its marking code "HCE" identifies it as the PNP variant within the NSVS5003xSB3 family. This polarity enables high-side switching configurations where the collector connects to the load and the emitter ties to the positive rail - a common requirement in automotive relay and lamp driver circuits. The device is not a MOSFET or logic-level switch; it requires base current control.

Is NSVS50031SB3T1G qualified for automotive applications?

Yes, NSVS50031SB3T1G is AEC-Q101 qualified and PPAP capable. This certification covers stress testing for temperature cycling, humidity, mechanical shock, and ESD, confirming suitability for under-hood and cabin automotive systems. The qualification applies specifically to the NSVS50031SB3T1G in CPH3 packaging - not inferred from family data alone - and is documented in the official onsemi datasheet revision 2 (February 2024).

What package does NSVS50031SB3T1G use and what are its dimensions?

NSVS50031SB3T1G uses the CPH3 package (Case 318BA), a surface-mount outline with 1.6 mm × 1.6 mm footprint and 0.9 mm maximum mounting height. Its three-terminal configuration (Emitter-Base-Collector on pins 1–2–3) is defined in the onsemi mechanical drawing. The package is optimized for thermal performance on ceramic substrates and supports automated placement in high-volume automotive PCB assembly.

What is the maximum collector current and saturation voltage of NSVS50031SB3T1G?

NSVS50031SB3T1G supports −3 A continuous collector current (I_C) and −6 A pulsed current (I_CP). Its V_CE(sat) is −140 mV at −2 A collector current with −100 mA base drive, and −210 mV at −2 A/−100 mA under worst-case conditions. These values are measured per JEDEC JESD22-A108 and confirmed in the Electrical Characteristics table of the official datasheet.

Does NSVS50031SB3T1G have lead-free and RoHS compliance?

Yes, NSVS50031SB3T1G is Pb-free, halogen-free, and RoHS compliant. This is explicitly stated in the Features section and Ordering Information table of the onsemi datasheet. The "T1G" suffix denotes tape-and-reel packaging with green (RoHS-compliant) material content, satisfying EU Directive 2011/65/EU and automotive ELV requirements without performance trade-offs.

NSVS50031SB3T1G 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):: 3 A

Voltage - Collector Emitter Breakdown (Max):: 50 V

Vce Saturation (Max) @ Ib, Ic:: 210mV @ 100mA, 2A

Current - Collector Cutoff (Max):: 1µA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 200 @ 100mA, 2V

Power - Max:: 1.1 W

Frequency - Transition:: 380MHz

Operating Temperature:: 175°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: 3-CPH

NSVS50031SB3T1G FAQ

1.How can I place an order for NSVS50031SB3T1G through Aetrix?

Please submit a Request for Quotation (RFQ) for NSVS50031SB3T1G 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 NSVS50031SB3T1G reliable?

The price and inventory of NSVS50031SB3T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NSVS50031SB3T1G is usually 5 days.

3.What payment methods are accepted for NSVS50031SB3T1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NSVS50031SB3T1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NSVS50031SB3T1G?

NSVS50031SB3T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NSVS50031SB3T1G 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 NSVS50031SB3T1G?

For technical support, including NSVS50031SB3T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NSVS50031SB3T1G requirements.

6.How does Aetrix verify that NSVS50031SB3T1G is sourced from the original manufacturer or authorized distributors?

All NSVS50031SB3T1G 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 NSVS50031SB3T1G meets industry standards.

7.What is the process for return or replacement of NSVS50031SB3T1G?

All NSVS50031SB3T1G units undergo pre-shipment inspection (PSI). If there is an issue with NSVS50031SB3T1G, 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 NSVS50031SB3T1G part is unused and in its original packaging.

Return procedure for NSVS50031SB3T1G:

1.Submit a request within 90 days.

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

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