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

STMicroelectronics 2STC2510

Name: 2STC2510
Brand: STMicroelectronics
SKU: 2STC2510
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2STC2510

Manufacturer:: STMicroelectronics

Category:: Single Bipolar Transistors

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

Datasheet:: 2STC2510.pdf

Description:: TRANS NPN 100V 25A TO-3P

Quantity:: RFQ Add To RFQ list

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Inventory:5,694

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Product details

Overview

2STC2510 from STMicroelectronics is a high-power NPN epitaxial planar bipolar transistor using BiT-LA technology for linear audio amplification, featuring V_CEO = 100 V, I_C = 25 A continuous, P_TOT = 125 W at T_c = 25 °C, f_T = 20 MHz, and R_thj-case ≤ 1 °C/W - deployed in high-fidelity audio power output stages.

For engineers reviewing the 2STC2510 datasheet, 2STC2510 pinout, 2STC2510 application, or 2STC2510 equivalent, key selection factors include safe operating area (SOA) at 125 °C, gain linearity under large-signal swing, thermal resistance validation for heatsink design, and complementary pairing with 2STA2510 in push-pull configurations.

Technical Context

This NPN transistor is optimized for linear amplifier operation, with DC current gain (h_FE) specified from 40 to 80 at I_C = 12 A and V_CE = 4 V, and collector-emitter saturation voltage V_CE(sat) ≤ 1.5 V under same conditions - enabling low-loss switching in Class AB output stages.

It operates up to T_J = 150 °C, with full characterization at 125 °C case temperature, and exhibits stable breakdown behavior: V_(BR)CEO = 100 V (pulsed, 300 µs), V_(BR)CBO = 100 V, and V_(BR)EBO = 6 V - supporting robust rail-to-rail audio output swing with margin.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	100 V - defines maximum collector-emitter voltage before avalanche in common-emitter configuration; sets rail voltage limit for audio output stage
I_C	25 A continuous - specifies max DC collector current; determines usable output power into low-Z loads (e.g., 4 Ω speakers)
P_TOT	125 W at T_c = 25 °C - total dissipation capability; requires heatsink design targeting ≤1 °C/W junction-to-case thermal resistance
f_T	20 MHz typical - transition frequency at I_C = 0.5 A, V_CE = 12 V; supports full-audio-band gain stability without compensation
h_FE	40–80 at I_C = 12 A - DC current gain range under high-current linear operation; enables predictable bias network design
R_thj-case	≤1 °C/W - maximum junction-to-case thermal resistance; critical for thermal derating above 25 °C case temperature

Pinout & Package

Supplied in TO-3P package: metal-can outline with isolated collector tab, 3-pin through-hole mounting, ECOPACK® lead-free interconnect, and mechanical dimensions per ST's TO-3P drawing (D ≈ 20 mm, E ≈ 15.6 mm, L ≈ 20 mm).

Pin/Terminal	Circuit Role	Design Meaning
1 (Base)	Control input	Low-impedance drive node requiring ~1.2 A base current for 12 A collector conduction; sensitive to layout inductance
2 (Collector)	Power output node	Internally connected to metal tab; must be electrically isolated from heatsink unless circuit ground reference permits
3 (Emitter)	Current return path	High-current emitter terminal; used for feedback sensing or local emitter degeneration in amplifier designs

Key Features

Feature	Design Value
BiT-LA process technology	Enables superior gain linearity across I_C = 1–20 A, reducing harmonic distortion in Class AB audio output stages
100 V breakdown rating	Supports ±45 V rail operation with 10 V safety margin, suitable for high-power discrete amplifier designs
Full 125 °C characterization	Guarantees parametric performance (h_FE, V_CE(sat), SOA) under worst-case thermal conditions in enclosed enclosures
Complementary pairing	Matched thermal and gain characteristics with 2STA2510 enable symmetrical push-pull output stage implementation

Applications

Hi-Fi Audio Amplifier

Professional PA Output Stage

Use Scenario: Discrete Class AB power amplifier delivering ≥100 W into 4 Ω load with <0.1% THD+N at 1 kHz.

IC Role / Device Role / Timing Role: Primary NPN output transistor in complementary symmetry pair driving speaker load directly.

Use Value: High SOA and 100 V V_CEO prevent secondary breakdown during transient overload, ensuring reliability under clipping conditions.

Use Scenario: 200 W+ stage in touring-grade powered loudspeaker with forced-air cooling.

IC Role / Device Role / Timing Role: High-current output device handling peak currents >30 A in short-duration transients.

Use Value: I_CM = 50 A (t_P < 5 ms) and R_thj-case ≤ 1 °C/W allow brief overloads without thermal runaway.

Studio Monitor Power Module

Discrete Guitar Amplifier Output

Use Scenario: Dual-mono active studio monitor with discrete output stage per channel.

IC Role / Device Role / Timing Role: Linear output transistor biased in Class AB with emitter degeneration resistors.

Use Value: Gain linearity (BiT-LA) preserves transient fidelity and minimizes intermodulation distortion at mid-to-high output levels.

Use Scenario: 50–100 W tube-emulated guitar amplifier with solid-state output section.

IC Role / Device Role / Timing Role: Final power gain device shaping dynamic response and compression characteristics.

Use Value: Predictable h_FE spread (40–80) and low V_CE(sat) support consistent biasing and warm harmonic generation under signal peaks.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MJE15030G	V_CEO = 150 V, I_C = 8 A, P_TOT = 150 W, f_T = 4 MHz	Higher voltage rating but lower current and bandwidth; suited for lower-power, higher-voltage rails	Select when rail voltage exceeds 100 V or thermal budget allows lower I_C density
BDW83C	V_CEO = 100 V, I_C = 15 A, P_TOT = 125 W, f_T ≈ 3 MHz	Lower f_T and h_FE; less suitable for wideband audio or fast transient response	Choose for cost-sensitive, non-critical audio where gain linearity and bandwidth are secondary

Compared with MJE15030G and BDW83C, the 2STC2510 uniquely balances 100 V breakdown, 25 A current, 20 MHz f_T, and BiT-LA linearity - making it optimal for high-fidelity, high-power discrete amplifier output stages where both headroom and fidelity matter.

Availability

2STC2510 is available at Aetrix Electronics and suitable for hi-fi audio amplifiers, professional PA systems, studio monitor modules, and discrete guitar amplifier outputs requiring stable component supply and long-lifecycle availability.

Supply support for 2STC2510 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, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.

The 2STC2510 belongs to ST's high-power bipolar transistor family engineered specifically for linear audio amplifier applications, emphasizing gain linearity, rugged SOA, and thermal reliability under sustained high-current operation.

FAQ

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

At 100 W dissipation and T_c = 25 °C, junction temperature reaches ~125 °C assuming R_thj-case = 1 °C/W. To maintain T_J ≤ 150 °C, heatsink-to-ambient resistance must be ≤ 0.25 °C/W - achievable with forced-air-cooled extruded aluminum heatsinks rated ≥ 0.2 °C/W.

Is the 2STC2510 pin-compatible with the 2STA2510?

No - the 2STC2510 (NPN) and 2STA2510 (PNP) share identical TO-3P mechanical footprint and pinout order (Base–Collector–Emitter), but polarity reversal means they are complementary, not interchangeable. Both use pin 2 as collector tab and require mirrored bias networks.

Does the device support operation at case temperatures above 125 °C?

Yes - all electrical characteristics are fully characterized at T_c = 125 °C per datasheet Table 4, including h_FE, V_CE(sat), and SOA boundaries. Derating curves (Figure 3) define safe power limits up to T_c = 150 °C, though T_J must remain ≤ 150 °C.

Can the 2STC2510 be used in switching power supplies?

Not recommended - while it withstands 100 V and 50 A peaks, its f_T = 20 MHz and lack of specified switching times (t_on/t_off) indicate optimization for linear operation. Switching applications demand faster recovery, lower storage time, and guaranteed turn-off characteristics absent in this device's specification.

2STC2510 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):: 25 A

Voltage - Collector Emitter Breakdown (Max):: 100 V

Vce Saturation (Max) @ Ib, Ic:: 1.5V @ 1.2A, 12A

Current - Collector Cutoff (Max):: 10µA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 40 @ 12A, 4V

Power - Max:: 125 W

Frequency - Transition:: 20MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-3P

2STC2510 FAQ

1.How can I place an order for 2STC2510 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2STC2510 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 2STC2510 reliable?

The price and inventory of 2STC2510 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2STC2510 is usually 5 days.

3.What payment methods are accepted for 2STC2510?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2STC2510 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2STC2510?

2STC2510 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2STC2510 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 2STC2510?

For technical support, including 2STC2510 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2STC2510 requirements.

6.How does Aetrix verify that 2STC2510 is sourced from the original manufacturer or authorized distributors?

All 2STC2510 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 2STC2510 meets industry standards.

7.What is the process for return or replacement of 2STC2510?

All 2STC2510 units undergo pre-shipment inspection (PSI). If there is an issue with 2STC2510, 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 2STC2510 part is unused and in its original packaging.

Return procedure for 2STC2510:

1.Submit a request within 90 days.

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

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