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STMicroelectronics 2STA1962
- Part No.:
- 2STA1962
- Manufacturer:
- STMicroelectronics
- Category:
- Single Bipolar Transistors
- Package:
- TO-3P-3, SC-65-3
- Datasheet:
-
2STA1962.pdf
- Description:
- TRANS PNP 230V 15A TO-3P
- Quantity:
- Payment:
- Shipping:
Inventory:6,446
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Product details
Overview
2STA1962 from STMicroelectronics is a high-voltage, high-power PNP epitaxial planar bipolar transistor using BiT-LA technology for linear amplifier applications. It delivers VCEO = -230 V, IC = -15 A continuous, fT = 30 MHz, RthJ-case = 0.83 °C/W, and is optimized for audio power amplifier output stages.
For engineers reviewing the 2STA1962 datasheet, 2STA1962 pinout, 2STA1962 application, or 2STA1962 equivalent, key selection criteria include safe operating area (SOA) compliance at high VCE, gain linearity under large-signal swing, thermal derating behavior, and complementary pairing with 2STC5242 in push-pull configurations.
Technical Context
This PNP transistor employs BiT-LA (Bipolar Transistor for Linear Amplifier) process technology to enhance gain linearity and reduce distortion in Class AB audio output stages. Its rugged SOA supports pulsed operation up to -230 V and -30 A peak, with low saturation voltage (VCE(sat) = -3 V @ IC = -8 A).
The device features low base-emitter forward voltage (-1.5 V @ IC = -7 A), high DC current gain (hFE = 80–160), and fast switching performance (ton = 0.24 µs, ts = 1.2 µs), enabling stable operation in high-fidelity analog power amplification circuits without secondary breakdown risk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -230 V - Enables use in high-rail audio amplifiers with ±100 V rails and robust overvoltage margin |
| IC (cont.) | -15 A - Supports >200 W continuous output into 4 Ω loads with proper heatsinking |
| fT | 30 MHz - Ensures wide open-loop bandwidth and minimal phase shift up to 100 kHz |
| RthJ-case | 0.83 °C/W - Requires minimum 0.25 K/W total thermal resistance (heatsink + interface) for 150 °C junction limit at full power |
| VCE(sat) | -3 V @ IC = -8 A - Limits conduction loss to <24 W per device in Class AB bias, improving efficiency |
| hFE | 80–160 @ IC = -1 A - Provides stable bias control and predictable current sharing in parallel-output configurations |
Pinout & Package
2STA1962 is housed in a TO-3P metal package with isolated collector tab, designed for direct mounting to heatsinks with electrical isolation. The case serves as the collector terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (Case) | Main current sink / heat path | Electrically connected to metal tab; must be insulated from chassis unless common-collector topology is used |
| Base | Current-controlled input | Drives emitter current; requires low-impedance driver due to high hFE and large IC capability |
| Emitter | Current source output | Connected to load return or negative rail; carries full output current and sets bias reference point |
Key Features
| Feature | Design Value |
|---|---|
| BiT-LA process technology | Delivers superior hFE linearity vs. IC across full operating range, reducing harmonic distortion in audio output stage |
| High SOA rating | Supports linear operation at VCE > -150 V and IC > -10 A simultaneously-critical for undistorted bass reproduction |
| Complementary pairing | Matched thermal and gain characteristics with 2STC5242 enable symmetrical push-pull amplifier design with low crossover distortion |
| ECOPACK® lead-free construction | Meets RoHS Directive 2011/65/EU; second-level interconnect marked on package per JESD97 for traceable compliance |
Applications
| Hi-Fi Audio Amplifier | Professional PA Output Stage |
|---|---|
Use Scenario: Discrete Class AB output stage in stereo amplifiers delivering 100–300 W per channel into 4–8 Ω loads. IC Role / Device Role / Timing Role: PNP output transistor in complementary pair with 2STC5242; handles negative half-cycle current delivery and thermal stress. Use Value: High VCEO and rugged SOA prevent secondary breakdown during reactive speaker load transients, preserving fidelity and reliability. | Use Scenario: High-current output section of touring-grade powered loudspeakers requiring sustained >200 W RMS output. IC Role / Device Role / Timing Role: Primary PNP switch in quasi-complementary output stage; manages high peak currents (>25 A) with low VCE(sat) to minimize thermal runaway risk. Use Value: 0.83 °C/W RthJ-case enables compact heatsink design while maintaining TJ ≤ 150 °C at full-rated power and ambient up to 50 °C. |
| Studio Monitor Power Module | Instrument Amplifier Output |
Use Scenario: Dual-mono active monitor with discrete output stages targeting ultra-low THD+N (<0.01%) below 1 kHz. IC Role / Device Role / Timing Role: Linear-mode PNP transistor biased in Class AB; operates in active region across full audio band with minimal gain compression. Use Value: BiT-LA process ensures hFE stability over signal amplitude, directly contributing to measured linearity and low intermodulation distortion. | Use Scenario: Guitar/bass amplifier output stage where dynamic headroom and touch-sensitive response are critical. IC Role / Device Role / Timing Role: High-slew-rate PNP device driving reactive transformer-coupled or reactive speaker loads with fast transient recovery. Use Value: 30 MHz fT and sub-microsecond switching times (ton/ts/tf) preserve leading-edge definition and note attack integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage PNP linear amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 2STC5242 | Complementary NPN counterpart; identical VCEO, IC, fT, and RthJ-case ratings | Used in same circuit topology but opposite polarity; required for push-pull symmetry | Select when building matched complementary pairs-ensure batch-matching for hFE and VBE tracking |
| MJE15034 | Lower VCEO (-200 V), higher RthJ-case (1.0 °C/W), similar fT (25 MHz) | Suitable for lower-rail designs (<±80 V); reduced SOA margin at high VCE | Choose only if system rail voltage remains ≤ ±90 V and thermal budget allows +0.17 °C/W penalty |
Compared with 2STC5242, this part provides essential PNP polarity for balanced output stages; versus MJE15034, it offers +30 V breakdown margin and 0.17 °C/W better thermal resistance-critical for high-fidelity, high-power linear operation.
Availability
2STA1962 is available at Aetrix Electronics and suitable for high-fidelity audio amplifiers, professional sound reinforcement systems, and studio monitor power modules requiring stable component supply and long-term BOM continuity.
Supply support for 2STA1962 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 2STA1962 belongs to ST's high-power bipolar transistor product line, engineered specifically for linear audio amplifier output stages where gain linearity, SOA robustness, and thermal performance are prioritized over digital switching speed.
FAQ
Is 2STA1962 still in active production?
No-STMicroelectronics has marked 2STA1962 as obsolete per its official datasheet revision history (Rev 3, July 2008). However, Aetrix Electronics maintains legacy inventory with full traceability and offers extended supply support for existing designs undergoing maintenance or end-of-life transition planning.
Can 2STA1962 be used in parallel configurations?
Yes-its well-matched hFE range (80–160) and low VBE variation support stable current sharing when operated with emitter resistors (≥0.22 Ω). Thermal coupling via shared heatsink is essential; mismatched case temperatures cause current hogging and premature failure.
What is the recommended gate/base drive for 2STA1962?
It is a bipolar transistor requiring current-driven base input-not gate-driven. For IC = -8 A, IB ≈ -800 mA is needed (hFE ≈ 10). Use low-impedance, high-current drivers (e.g., complementary Darlington predrivers) with adequate slew rate to avoid storage-time-induced distortion.
Does 2STA1962 require a mica insulator when mounted to a heatsink?
Yes-the TO-3P case is electrically connected to the collector. When mounting to an earthed or common-chassis heatsink, a thermally conductive but electrically isolating kit (mica washer + silicone grease or polymer pad) must be used to prevent short-circuiting the collector node.
2STA1962 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-3P-3, SC-65-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 15 A
- Voltage - Collector Emitter Breakdown (Max):
- 230 V
- Vce Saturation (Max) @ Ib, Ic:
- 3V @ 800mA, 8A
- Current - Collector Cutoff (Max):
- 5µA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 80 @ 1A, 5V
- Power - Max:
- 150 W
- Frequency - Transition:
- 30MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-3P
2STA1962 FAQ
1.How can I place an order for 2STA1962 through Aetrix?
Please submit a Request for Quotation (RFQ) for 2STA1962 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 2STA1962 reliable?
The price and inventory of 2STA1962 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2STA1962 is usually 5 days.
3.What payment methods are accepted for 2STA1962?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2STA1962 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2STA1962?
2STA1962 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2STA1962 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 2STA1962?
For technical support, including 2STA1962 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2STA1962 requirements.
6.How does Aetrix verify that 2STA1962 is sourced from the original manufacturer or authorized distributors?
All 2STA1962 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 2STA1962 meets industry standards.
7.What is the process for return or replacement of 2STA1962?
All 2STA1962 units undergo pre-shipment inspection (PSI). If there is an issue with 2STA1962, 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 2STA1962 part is unused and in its original packaging.
Return procedure for 2STA1962:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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