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

STMicroelectronics 2STC4468

Name: 2STC4468
Brand: STMicroelectronics
SKU: 2STC4468
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2STC4468

Manufacturer:: STMicroelectronics

Category:: Single Bipolar Transistors

Package:: TO-3P-3, SC-65-3

Datasheet:: 2STC4468.pdf

Description:: TRANS NPN 140V 10A TO-3P

Quantity:: RFQ Add To RFQ list

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Inventory:3,625

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Product details

Overview

2STC4468 from STMicroelectronics is a high-power NPN epitaxial planar bipolar transistor designed for audio power amplifier output stages, featuring V_CEO = 140 V, I_C = 10 A, P_tot = 100 W at T_c = 25 °C, f_T = 20 MHz, and R_thj-case = 1.25 °C/W. It is optimized for 70–100 W high-fidelity audio amplifiers using BiT-LA technology to ensure gain linearity.

For engineers reviewing the 2STC4468 datasheet, 2STC4468 pinout, 2STC4468 application, or 2STC4468 equivalent, key selection criteria include safe operating area at elevated case temperatures, DC current gain stability across 3–5 A, saturation voltage under high drive (V_CE(sat) ≤ 0.7 V at I_C = 7 A), and thermal resistance suitability for TO-3P heatsink integration.

Technical Context

This NPN transistor employs ST's BiT-LA (Bipolar transistor for linear amplifier) process, enabling controlled gain linearity critical for low-distortion audio output stages. Its SOA is fully characterized up to 125 °C case temperature, with defined pulse limits (300 µs, ≤1.5% duty cycle) for switching reliability.

The device operates with complementary pairing to 2STA1695 (PNP), supports resistive-load switching with t_on = 0.22 µs, t_stg = 4.3 µs, and t_f = 0.5 µs at V_CC = 60 V / I_C = 5 A, and maintains h_FE ≥ 50 at I_C = 5 A / V_CE = 4 V.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	140 V - Maximum collector-emitter voltage before breakdown at I_B = 0; defines safe voltage headroom in Class-AB audio rails.
I_C (continuous)	10 A - Continuous collector current rating; supports ≥70 W into 8 Ω load with proper heatsinking.
P_tot	100 W at T_c = 25 °C - Total power dissipation limit; derates linearly above 25 °C per Figure 3.
f_T	20 MHz - Transition frequency at I_C = 0.5 A / V_CE = 12 V; ensures stable gain up to upper-audio frequencies.
R_thj-case	1.25 °C/W - Junction-to-case thermal resistance; enables thermal design with standard TO-3P mounting hardware.
h_FE @ 5 A	50–140 - DC current gain range at I_C = 5 A / V_CE = 4 V; supports predictable bias network design.
V_CE(sat)	0.7 V @ I_C = 7 A / I_B = 700 mA - Low saturation voltage minimizes conduction loss and heat generation in output stage.

Pinout & Package

Supplied in TO-3P package: insulated metal tab, 3-pin through-hole, standardized mechanical dimensions per Table 5 (e.g., D = 19.7–20.1 mm, E = 15.4–15.8 mm, L = 19.5–20.5 mm), ECOPACK® compliant.

Pin/Terminal	Circuit Role	Design Meaning
1 (Tab)	Collector	Electrically connected to metal case; must be isolated from heatsink unless circuit design permits common-collector configuration.
2	Base	Control terminal; requires ~700 mA drive for full saturation at 7 A collector current.
3	Emitter	Current return path; low-inductance connection critical for stability in high-current audio output stages.

Key Features

Feature	Design Value
BiT-LA process technology	Engineered for gain linearity across I_C = 1–8 A, reducing harmonic distortion in audio output stages.
Full 125 °C characterization	Electrical parameters (h_FE, V_CE(sat), SOA) validated at T_case = 125 °C for automotive and industrial ambient reliability.
Complementary pairing	Matched performance with 2STA1695 (PNP) enables push-pull amplifier designs with balanced slew rate and crossover behavior.
TO-3P mechanical robustness	High creepage/clearance distances and rigid leadframe support long-term reliability in high-vibration audio chassis environments.

Applications

Hi-Fi Stereo Amplifier Output Stage

Professional Audio Power Module

Use Scenario: Dual-rail ±50 V Class-AB amplifier delivering 80 W RMS into 8 Ω loads with THD < 0.05% at 1 kHz.

IC Role / Device Role / Timing Role: NPN output switch in complementary pair; handles positive half-cycle current with minimal V_CE(sat) and thermal drift.

Use Value: 1.25 °C/W R_thj-case enables compact heatsink design while maintaining T_J < 130 °C at full power.

Use Scenario: 100 W active monitor speaker with integrated protection circuitry and thermal foldback.

IC Role / Device Role / Timing Role: Primary output device in quasi-complementary topology; biased at 100 mA quiescent current for low crossover distortion.

Use Value: h_FE ≥ 70 at I_C = 3 A ensures stable bias point over temperature without complex compensation networks.

Public Address System Final Stage

Instrument Amplifier Output Section

Use Scenario: 70 V line distributed audio system driving multiple loudspeakers via transformer coupling.

IC Role / Device Role / Timing Role: High-voltage switching element handling peak swing >120 V with safe margin against V_CEO = 140 V.

Use Value: V_(BR)CEO = 140 V and SOA validated to 125 °C allow sustained operation under reactive load transients.

Use Scenario: Guitar amplifier output stage requiring dynamic headroom and touch-sensitive response.

IC Role / Device Role / Timing Role: Linear amplifier device operating in Class-A/AB transition region; leverages BiT-LA gain linearity for clean overdrive characteristics.

Use Value: f_T = 20 MHz preserves transient fidelity up to 10 kHz, supporting wide-bandwidth instrument signal reproduction.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-power audio amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
2SC5200	V_CEO = 230 V, I_C = 15 A, f_T = 30 MHz, TO-3PL package	Higher voltage/current ratings; wider SOA but less gain linearity focus than BiT-LA	Preferred where higher rail voltages (>±60 V) or >100 W output required; may need revised bias network due to higher h_FE.
MJE15030	V_CEO = 150 V, I_C = 8 A, f_T = 12 MHz, TO-218 package	Slightly lower power capability and bandwidth; legacy process with broader h_FE spread	Suitable for cost-sensitive 50–70 W designs where 20 MHz f_T is not critical; requires verification of SOA at 125 °C.

Compared with 2SC5200 and MJE15030, the 2STC4468 offers superior gain linearity and tighter parameter distribution for high-fidelity audio, optimized thermal resistance for TO-3P mounting, and documented 125 °C operation-making it preferred for 70–100 W amplifiers prioritizing low distortion over raw power headroom.

Availability

2STC4468 is available at Aetrix Electronics and suitable for high-fidelity audio amplifiers, professional sound reinforcement systems, and instrument amplifier output stages requiring stable component supply and long-lifecycle availability.

Supply support for 2STC4468 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, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs and discrete devices for industrial, automotive, and consumer markets.

The 2STC4468 belongs to ST's high-power bipolar transistor product line, developed specifically for linear audio amplifier applications demanding low distortion, thermal stability, and ruggedized packaging.

FAQ

Is the 2STC4468 RoHS-compliant and ECOPACK® certified?

Yes, the 2STC4468 meets RoHS Directive 2011/65/EU requirements and is offered in ECOPACK®-compliant TO-3P packaging. ECOPACK® status and material declarations are available on ST's official website under the device's product page and quality documentation section.

What is the recommended minimum heatsink thermal resistance for continuous 100 W operation?

At P_tot = 100 W and maximum T_J = 150 °C, assuming ambient T_A = 40 °C and R_thj-case = 1.25 °C/W, the combined R_thcase-amb must be ≤ 0.85 °C/W. This requires a high-performance forced-air or large passive heatsink-typical designs use R_th ≤ 0.5 °C/W with thermal interface material.

Can the 2STC4468 be used in switching power supplies?

No-it is optimized for linear operation in audio amplifiers, not switching. Its storage time (t_stg = 4.3 µs) and lack of specified avalanche energy rating make it unsuitable for SMPS applications. Use ST's MDmesh™ or STripFET™ MOSFETs instead for switching topologies.

Does ST provide SPICE models for the 2STC4468?

ST does not publish an official SPICE model for the 2STC4468. Designers should use generic NPN behavioral models calibrated to key DC and small-signal parameters from Table 4 (e.g., h_FE, f_T, C_CBO) or rely on measured bench characterization for critical audio simulations.

2STC4468 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-3P-3, SC-65-3

Packaging:: Tube

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 10 A

Voltage - Collector Emitter Breakdown (Max):: 140 V

Vce Saturation (Max) @ Ib, Ic:: 700mV @ 700mA, 7A

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 70 @ 3A, 4V

Power - Max:: 100 W

Frequency - Transition:: 20MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-3P

2STC4468 FAQ

1.How can I place an order for 2STC4468 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2STC4468 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 2STC4468 reliable?

The price and inventory of 2STC4468 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2STC4468 is usually 5 days.

3.What payment methods are accepted for 2STC4468?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2STC4468 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2STC4468?

2STC4468 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2STC4468 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 2STC4468?

For technical support, including 2STC4468 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2STC4468 requirements.

6.How does Aetrix verify that 2STC4468 is sourced from the original manufacturer or authorized distributors?

All 2STC4468 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 2STC4468 meets industry standards.

7.What is the process for return or replacement of 2STC4468?

All 2STC4468 units undergo pre-shipment inspection (PSI). If there is an issue with 2STC4468, 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 2STC4468 part is unused and in its original packaging.

Return procedure for 2STC4468:

1.Submit a request within 90 days.

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

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