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

onsemi NSS12500UW3T2G

Name: NSS12500UW3T2G
Brand: onsemi
SKU: NSS12500UW3T2G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NSS12500UW3T2G

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: 3-WDFN Exposed Pad

Datasheet:: NSS12500UW3T2G.pdf

Description:: TRANS PNP 12V 5A 3WDFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

NSS12500UW3T2G from onsemi is a PNP bipolar junction transistor optimized for low-voltage, high-speed switching in power management circuits. It delivers −12 V V_CEO, −8.0 A peak collector current, and ultra-low V_CE(sat) down to −0.008 V at I_C = −0.1 A / I_B = −0.01 A. Its 100 MHz f_T, high h_FE (250 min at I_C = −10 mA), and WDFN3 2×2 mm package make it suitable for compact DC−DC converters in portable electronics.

For engineers reviewing the NSS12500UW3T2G datasheet, pinout, applications, or equivalent options, key selection criteria include verified V_CE(sat) performance across temperature, thermal resistance (R_JA = 85 °C/W with 500 mm² copper), and direct drive compatibility with PMU control outputs without external base resistors.

Technical Context

This PNP transistor operates in saturation mode for efficient switching, with guaranteed V_CE(sat) ≤ −0.260 V at I_C = −4.0 A / I_B = −0.400 A and linear h_FE behavior supporting analog amplifier use. Its safe operating area (SOA) supports single-pulse power dissipation up to 3.0 W (t < 10 sec).

Designed for e2PowerEdge family integration, it features Pb-free WDFN3 packaging with exposed thermal pad (R_JL = 23 °C/W), enabling high-current operation on FR-4 PCBs with ≥500 mm² 1 oz copper. ESD robustness meets HBM Class 3B and MM Class C standards.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−12 V - Maximum blocking voltage before breakdown in common-emitter configuration
I_C (peak)	−8.0 A - Sustains short-duration load surges without SOA violation
V_CE(sat) (typ)	−0.055 V at I_C = −1.0 A / I_B = −0.100 A - Enables <1% conduction loss in 12 V systems
f_T	100 MHz - Supports switching frequencies up to ~10 MHz with adequate gain margin
R_JA	85 °C/W (500 mm² copper) - Limits junction rise to ≤85 °C at 1.5 W continuous dissipation
h_FE (min)	250 at I_C = −10 mA - Allows direct drive from low-current PMU GPIOs without base amplification
C_ibo	650 pF - Input capacitance impacts turn-on delay in high-frequency PWM gate drivers

Pinout & Package

Package: WDFN3 (Case 506AU), 2.0 × 2.0 × 0.75 mm, thermally enhanced with exposed copper pad (Pin 3). RoHS-compliant, Pb-free.

Pin/Terminal	Circuit Role	Design Meaning
1	Collector	Main current sink terminal; connected to load return path in high-side switch configurations
2	Base	Control input requiring negative bias relative to emitter to enable conduction
3	Emitter	Common reference terminal; tied to system ground or positive rail depending on topology

Key Features

Feature	Design Value
Ultra-low V_CE(sat)	As low as −0.008 V enables >99% efficiency in 12 V, 1 A switching paths
High h_FE linearity	Stable current gain across I_C = −10 mA to −3.0 A supports both digital switching and analog amplification
Thermal performance	R_JL = 23 °C/W to lead #3 allows 1.5 W continuous operation with minimal heatsinking
ESD robustness	HBM Class 3B (≥8 kV) and MM Class C ensure reliability during board assembly and handling
Miniature footprint	2×2 mm WDFN3 saves >60% board area vs. SOT-23 while improving thermal coupling

Applications

DC–DC Converter Switching	Portable Device Power Management
Use Scenario: Step-down (buck) converter top switch in 12 V input → 3.3 V output for smartphone PMIC rails. IC Role / Device Role / Timing Role: High-side PNP switch controlling energy transfer into inductor during ON phase. Use Value: Ultra-low V_CE(sat) reduces conduction loss by 40% vs. standard PNP transistors, extending battery life in standby mode.	Use Scenario: Load switch enabling/disabling USB peripheral power in tablet docking stations. IC Role / Device Role / Timing Role: Low-loss series pass element controlled by base driver IC. Use Value: 250+ h_FE permits direct drive from 3.3 V GPIO, eliminating discrete base resistor network and saving BOM cost.
Low-Voltage Motor Control	Automotive Instrument Cluster
Use Scenario: H-bridge half-bridge driver for 5 V fan control in SSD enclosure cooling systems. IC Role / Device Role / Timing Role: Complementary PNP switch paired with NPN for bidirectional motor current control. Use Value: 100 MHz f_T supports PWM frequencies >1 MHz, enabling precise speed regulation with minimal audible noise.	Use Scenario: Backlight dimming control for LCD gauges using pulse-width modulated current sourcing. IC Role / Device Role / Timing Role: Constant-current source regulating LED string brightness via emitter-follower configuration. Use Value: Linear h_FE behavior ensures stable current regulation across −40°C to +125°C ambient, meeting automotive AEC-Q101 stress requirements.

DC–DC Converter Switching

Portable Device Power Management

Use Scenario: Step-down (buck) converter top switch in 12 V input → 3.3 V output for smartphone PMIC rails.

IC Role / Device Role / Timing Role: High-side PNP switch controlling energy transfer into inductor during ON phase.

Use Value: Ultra-low V_CE(sat) reduces conduction loss by 40% vs. standard PNP transistors, extending battery life in standby mode.

Use Scenario: Load switch enabling/disabling USB peripheral power in tablet docking stations.

IC Role / Device Role / Timing Role: Low-loss series pass element controlled by base driver IC.

Use Value: 250+ h_FE permits direct drive from 3.3 V GPIO, eliminating discrete base resistor network and saving BOM cost.

Low-Voltage Motor Control

Automotive Instrument Cluster

Use Scenario: H-bridge half-bridge driver for 5 V fan control in SSD enclosure cooling systems.

IC Role / Device Role / Timing Role: Complementary PNP switch paired with NPN for bidirectional motor current control.

Use Value: 100 MHz f_T supports PWM frequencies >1 MHz, enabling precise speed regulation with minimal audible noise.

Use Scenario: Backlight dimming control for LCD gauges using pulse-width modulated current sourcing.

IC Role / Device Role / Timing Role: Constant-current source regulating LED string brightness via emitter-follower configuration.

Use Value: Linear h_FE behavior ensures stable current regulation across −40°C to +125°C ambient, meeting automotive AEC-Q101 stress requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP low V_CE(sat) transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMT3005LKQ-7	V_CEO = −30 V, I_C = −3.0 A, V_CE(sat) = −0.15 V @ I_C = −1.5 A - higher voltage rating but higher saturation loss	Preferred in 24 V industrial controls where 12 V margin is insufficient	Select when system bus voltage exceeds 15 V; avoid for 12 V portable designs due to 2.7× higher V_CE(sat)
ZXTN2010ZTA	V_CEO = −12 V, I_C = −4.0 A, V_CE(sat) = −0.12 V @ I_C = −2.0 A - same voltage rating but lower current and higher saturation voltage	Suitable for space-constrained consumer audio amplifiers needing moderate gain stability	Choose only if WDFN3 footprint is incompatible; its SOT-23 package requires larger R_JA derating and lacks thermal pad

Compared with DMT3005LKQ-7 and ZXTN2010ZTA, NSS12500UW3T2G delivers the lowest V_CE(sat) in its 12 V class and unique WDFN3 thermal performance, making it optimal for high-efficiency, high-density portable power stages where conduction loss and board area are critical.

Availability

NSS12500UW3T2G is available at Aetrix Electronics and suitable for DC–DC converters, portable device power management, and low-voltage motor control requiring stable component supply and long-term production continuity.

Supply support for NSS12500UW3T2G 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 specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

NSS12500UW3T2G belongs to the e2PowerEdge family of low V_CE(sat) transistors, engineered specifically for high-efficiency, high-speed switching in battery-powered and thermally constrained applications.

FAQ

What is the maximum continuous collector current rating for NSS12500UW3T2G?

The NSS12500UW3T2G has a maximum continuous collector current (I_C) rating of −5.0 A at T_A = 25°C with 500 mm² copper. This rating assumes proper PCB thermal design per Note 2 in the datasheet; exceeding this value risks thermal runaway or SOA violation.

Does NSS12500UW3T2G support direct drive from a 3.3 V microcontroller GPIO?

Yes - NSS12500UW3T2G's high h_FE (250 min at I_C = −10 mA) and low V_BE(sat) (0.760 V typical) allow reliable saturation with 3.3 V logic driving the base through a simple current-limiting resistor. The NSS12500UW3T2G achieves full conduction at I_B = −0.01 A, well within typical GPIO sink capability.

What is the thermal resistance from junction to ambient for NSS12500UW3T2G under standard conditions?

The NSS12500UW3T2G has R_JA = 85 °C/W when mounted on FR-4 with 500 mm² of 1 oz copper (Note 2). This value drops to 23 °C/W to lead #3 (R_JL), confirming the exposed pad's critical role in heat extraction - a key design advantage over non-thermal packages.

Is NSS12500UW3T2G qualified for automotive applications?

The NSS12500UW3T2G is not AEC-Q101 qualified per its datasheet, though its −55°C to +150°C T_J range and HBM Class 3B ESD rating support industrial and extended-temperature use. For automotive instrument cluster applications, system-level qualification is required - the NSS12500UW3T2G itself carries no automotive certification.

How does the V_CE(sat) of NSS12500UW3T2G vary with temperature?

V_CE(sat) of NSS12500UW3T2G decreases with rising temperature - Figure 1 shows −55°C curve above 25°C, which is above 150°C. At I_C = −1.0 A / I_B = −0.100 A, V_CE(sat) is −0.070 V (max) at 25°C and improves to −0.055 V (typ) at 150°C, enhancing efficiency in thermally stressed environments.

NSS12500UW3T2G Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: 3-WDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 5 A

Voltage - Collector Emitter Breakdown (Max):: 12 V

Vce Saturation (Max) @ Ib, Ic:: 260mV @ 400mA, 4A

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

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

Power - Max:: 875 mW

Frequency - Transition:: 100MHz

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 3-WDFN (2x2)

NSS12500UW3T2G FAQ

1.How can I place an order for NSS12500UW3T2G through Aetrix?

Please submit a Request for Quotation (RFQ) for NSS12500UW3T2G 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 NSS12500UW3T2G reliable?

The price and inventory of NSS12500UW3T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NSS12500UW3T2G is usually 5 days.

3.What payment methods are accepted for NSS12500UW3T2G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NSS12500UW3T2G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NSS12500UW3T2G?

NSS12500UW3T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NSS12500UW3T2G 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 NSS12500UW3T2G?

For technical support, including NSS12500UW3T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NSS12500UW3T2G requirements.

6.How does Aetrix verify that NSS12500UW3T2G is sourced from the original manufacturer or authorized distributors?

All NSS12500UW3T2G 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 NSS12500UW3T2G meets industry standards.

7.What is the process for return or replacement of NSS12500UW3T2G?

All NSS12500UW3T2G units undergo pre-shipment inspection (PSI). If there is an issue with NSS12500UW3T2G, 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 NSS12500UW3T2G part is unused and in its original packaging.

Return procedure for NSS12500UW3T2G:

1.Submit a request within 90 days.

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

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