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

STMicroelectronics 2N5192

Name: 2N5192
Brand: STMicroelectronics
SKU: 2N5192
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2N5192

Manufacturer:: STMicroelectronics

Category:: Single Bipolar Transistors

Package:: TO-225AA, TO-126-3

Datasheet:: 2N5192.pdf

Description:: TRANS NPN 80V 4A SOT-32-3

Quantity:: RFQ Add To RFQ list

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Inventory:5,703

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Product details

Overview

2N5192 from STMicroelectronics is a medium-power silicon NPN bipolar junction transistor in SOT-32 (TO-126) package, rated for 80 V V_CEO, 4 A I_C, and 40 W P_tot at T_c ≤ 25 °C. It operates up to 150 °C junction temperature and delivers h_FE ≥ 20 at I_C = 1.5 A, used in industrial linear amplification and switching power stages.

For engineers reviewing the 2N5192 datasheet, 2N5192 pinout, 2N5192 application, or 2N5192 equivalent, key selection factors include V_CEO/V_CBO rating margin, thermal resistance (R_thj-case = 3.12 °C/W), DC current gain at high collector current, saturation voltage under specified drive conditions, and compatibility with complementary PNP 2N5195 in push-pull configurations.

Technical Context

The 2N5192 employs an epitaxial-base structure optimized for medium-power operation in both linear and switching modes. Its design supports stable DC current gain (h_FE = 20–100) across I_C = 1.5–4 A and V_CE = 2 V, with pulsed V_CE(sat) ≤ 1.4 V at I_C = 4 A / I_B = 1 A.

Thermal performance is defined by R_thj-case = 3.12 °C/W and R_thj-amb = 100 °C/W, requiring heatsinking for sustained >10 W dissipation. The device features V_EBO = 5 V and low leakage: I_CBO ≤ 0.1 mA at rated V_CBO, enabling reliable operation in industrial ambient conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	80 V - Maximum safe collector-emitter voltage with base open; defines breakdown margin in switching applications.
I_C	4 A - Continuous collector current rating; sets maximum linear output or switching load current capability.
P_tot	40 W at T_c ≤ 25 °C - Total power dissipation limit; requires mechanical heatsink interface for full rating.
h_FE	20 (min) at I_C = 1.5 A, V_CE = 2 V - Minimum DC current gain; determines required base drive for target collector current.
V_CE(sat)	1.4 V (max) at I_C = 4 A, I_B = 1 A - Saturation voltage under full-load switching; directly impacts conduction loss and thermal load.
R_thj-case	3.12 °C/W - Junction-to-case thermal resistance; defines minimum heatsink requirement for thermal management.

Pinout & Package

SOT-32 (JEDEC TO-126) plastic package with three leads: emitter (lead 1), base (lead 2), collector (lead 3). Case is electrically connected to collector. Mounting tab enables direct heatsink attachment with insulated hardware.

Pin/Terminal	Circuit Role	Design Meaning
Lead 1	Emitter	Current exit terminal; referenced to ground or negative rail in common-emitter configurations.
Lead 2	Base	Control input; requires current-limited drive (I_B ≤ 1 A) to achieve full I_C = 4 A.
Lead 3	Collector	Main current input terminal; electrically tied to metal mounting tab for thermal conduction and electrical connection.

Key Features

Feature	Design Value
High V_CEO rating	80 V enables use in 48 V industrial power rails and flyback snubber circuits without derating.
Low R_thj-case	3.12 °C/W allows efficient heat transfer to external heatsink, supporting continuous 25 W dissipation with modest heatsinking.
Complementary PNP pairing	2N5195 is documented as direct complementary PNP, enabling matched push-pull amplifier or H-bridge driver designs.
Pulsed switching capability	V_CE(sat) and h_FE characterized under pulsed conditions (300 µs, 1.5 % duty), supporting intermittent high-current loads.

Applications

Motor Drive Stage

Linear Power Regulator

Use Scenario: Driving 24–48 V DC brushed motors in industrial actuators with PWM control at ≤20 kHz.

IC Role / Device Role / Timing Role: Medium-power NPN switch in common-emitter configuration, handling peak currents up to 4 A.

Use Value: Low V_CE(sat) (≤1.4 V) minimizes conduction loss during on-state; robust SOA supports motor stall current surges.

Use Scenario: Pass transistor in adjustable linear voltage regulators delivering up to 3 A at 5–24 V output.

IC Role / Device Role / Timing Role: Series pass element controlled by error amplifier feedback loop.

Use Value: Stable h_FE ≥20 at I_C = 1.5–4 A ensures predictable base drive requirements; 40 W rating supports thermal headroom under worst-case dropout.

Switch-Mode Power Supply

Industrial Relay Driver

Use Scenario: Main switching transistor in low-frequency (<100 kHz) flyback or forward converters for auxiliary power supplies.

IC Role / Device Role / Timing Role: Primary-side switch controlling energy transfer to transformer secondary.

Use Value: 80 V V_CEO accommodates reflected voltage spikes in 24 V input designs; pulsed V_CE(sat) ensures efficiency at peak current.

Use Scenario: High-current driver for 12–24 V DC industrial relays with coil inductance >100 mH.

IC Role / Device Role / Timing Role: Saturated switch providing full coil current with fast turn-on/turn-off via base overdrive.

Use Value: I_CM = 7 A peak rating handles relay inrush; low V_CE(sat) prevents excessive self-heating during extended hold periods.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN medium-power transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
2N5191	V_CEO = 60 V (vs. 80 V), h_FE min = 25 at I_C = 1.5 A (vs. 20)	Limited to ≤40 V supply rails; less margin for voltage transients in industrial environments.	Select when lower V_CEO suffices and higher h_FE improves base drive efficiency at mid-current.
MJ15001	V_CEO = 120 V, I_C = 20 A, P_tot = 250 W, TO-3 package	Higher power class; requires larger heatsink and different PCB footprint; not drop-in compatible.	Choose for >4 A continuous loads or systems requiring >100 V breakdown; redesign required for mechanical and thermal interfaces.

Compared with 2N5191, the 2N5192 offers higher voltage safety margin and slightly lower h_FE; compared with MJ15001, it provides compact SOT-32 implementation at lower cost and thermal mass, but with reduced current and voltage headroom.

Availability

2N5192 is available at Aetrix Electronics and suitable for industrial motor drives, linear power regulators, and relay driver circuits requiring stable component supply and long-term manufacturability.

Supply support for 2N5192 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, digital, and mixed-signal ICs, discrete devices, and MEMS sensors for automotive, industrial, and consumer markets.

The 2N5192 belongs to ST's legacy bipolar power transistor family, engineered for ruggedized industrial linear and switching applications where reliability, thermal stability, and proven JEDEC packaging are critical.

FAQ

Is the 2N5192 RoHS compliant?

Yes, the 2N5192 manufactured by STMicroelectronics meets RoHS Directive 2011/65/EU requirements. Lead-free soldering is supported per JEDEC J-STD-020, with peak reflow temperature up to 260 °C. Halogen-free version is also available under part number 2N5192RL.

What is the maximum safe operating frequency for linear amplification?

The 2N5192 has f_T = 2 MHz at I_C = 1 A and V_CE = 10 V. For linear Class-A amplifiers, practical upper bandwidth is limited to ≤500 kHz due to gain roll-off and thermal constraints; higher frequencies require parallel devices or alternative RF transistors.

Can the 2N5192 be used in avalanche mode?

No - the 2N5192 is not rated or characterized for controlled avalanche operation. Its V_CEO(sus) = 80 V is a sustaining voltage under pulsed conditions, not an avalanche rating. Use only within absolute maximum ratings; external clamping is required for inductive switching transients.

How does the SOT-32 package compare thermally to TO-220?

SOT-32 (TO-126) has R_thj-case = 3.12 °C/W, comparable to many TO-220 variants. However, its smaller footprint limits heatsink surface area; effective R_thj-amb is highly dependent on PCB copper area and airflow. TO-220 typically offers better ambient cooling with standard clip-on heatsinks.

2N5192 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-225AA, TO-126-3

Packaging:: Tube

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 4 A

Voltage - Collector Emitter Breakdown (Max):: 80 V

Vce Saturation (Max) @ Ib, Ic:: 1.4V @ 1A, 4A

Current - Collector Cutoff (Max):: 1mA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 20 @ 1.5A, 2V

Power - Max:: 40 W

Frequency - Transition:: 2MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: SOT-32-3

2N5192 FAQ

1.How can I place an order for 2N5192 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2N5192 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 2N5192 reliable?

The price and inventory of 2N5192 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2N5192 is usually 5 days.

3.What payment methods are accepted for 2N5192?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2N5192 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2N5192?

2N5192 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2N5192 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 2N5192?

For technical support, including 2N5192 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2N5192 requirements.

6.How does Aetrix verify that 2N5192 is sourced from the original manufacturer or authorized distributors?

All 2N5192 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 2N5192 meets industry standards.

7.What is the process for return or replacement of 2N5192?

All 2N5192 units undergo pre-shipment inspection (PSI). If there is an issue with 2N5192, 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 2N5192 part is unused and in its original packaging.

Return procedure for 2N5192:

1.Submit a request within 90 days.

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

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