TDA2050A STMicroelectronics Integrated Circuit (Transistor Outline, Vertical) In Stock
The TDA2050A is a 32 W monolithic audio power amplifier IC from STMicroelectronics in a Pentawatt (TO-220 style) vertical package. It operates from a ±4.5 V to ±25 V dual supply and delivers up to 32 W into 4 Ω with low distortion for Hi-Fi audio applications. Features built-in short-circuit and thermal protection for robust amplifier designs.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TDA2050A Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TDA2050A?
- 32 W output power into 4 Ω from a ±25 V dual supply with low total harmonic distortion for Hi-Fi audio reproduction
- Wide ±4.5 V to ±25 V dual supply range and single-supply operation capability, suitable for both home audio and automotive 12 V applications
- Integrated short-circuit protection and thermal shutdown with over-temperature flag, reducing the need for external protection circuitry
What is TDA2050A used for?
The TDA2050A is used in consumer Hi-Fi amplifiers, home theatre receivers, and powered loudspeaker enclosures where 32 W per channel from a compact single-package solution is sufficient. Its wide dual-supply range also makes it appropriate for subwoofer amplifier modules and automotive audio power stages operating from boosted 12 V rails. The Pentawatt package bolts directly to a standard heatsink, simplifying thermal management in medium-power audio equipment designs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TDA2050A datasheet?
TDA2050A Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for TDA2050A?
Compatible alternatives and drop-in replacements for TDA2050A:
suggested
suggested
suggested
suggested
suggested
Frequently Asked Questions
What supply voltage and output power does TDA2050A provide for a home audio amplifier?
TDA2050A operates from a dual supply ranging from ±4.5 V to ±25 V and delivers up to 32 W of continuous output power into a 4 Ω loudspeaker load at the maximum supply voltage. At a more common ±20 V dual supply, it typically provides around 22 W into 8 Ω, which is sufficient for a high-quality stereo bookshelf speaker system in a living-room environment.
How does the TDA2050A protect itself from overload and overtemperature conditions?
TDA2050A integrates two on-chip protection mechanisms: a short-circuit protection circuit that limits the output current if the loudspeaker leads are accidentally bridged, and a thermal shutdown that disengages the output stage when the junction temperature exceeds approximately 150°C. These features protect both the IC and the connected loudspeaker without requiring external fuses or temperature sensors in most standard designs.
Which package does the TDA2050A use, and how is it mounted to a heatsink?
TDA2050A is housed in the Pentawatt (vertical TO-220 style) package with 5 pins. The package includes a metal tab that can be bolted or clamped directly to an aluminium heatsink using a standard M3 screw, with a thin insulating washer to isolate the tab from the heatsink if the heatsink is grounded separately. A heatsink with a thermal resistance of around 5°C/W or lower is recommended for continuous 32 W operation.
Can TDA2050A operate from a single-supply 12 V rail for an automotive application?
Yes. TDA2050A can be configured for single-supply operation by biasing the input and output to mid-supply using a capacitor-coupled output stage. From a 12 V single supply, output power is reduced to approximately 2 W to 4 W into 8 Ω, which is suitable for low-power in-car audio amplifiers or intercom systems. For higher power automotive audio, a boost converter or a ±12 V split supply can be used to take advantage of the full ±25 V rating.
Related Guides
LM5156QDSSRQ1 Automotive Boost Controller Design Guide
Practical LM5156QDSSRQ1 automotive boost design guidance covering operating points, magnetics, MOSFET stress, compensation, layout, and validation.
Jul 24, 2026
EEEFK1H470XP Selection Guide: Choosing a 50 V SMD Aluminum Capacitor
Choose EEEFK1H470XP and related 50 V SMD aluminum capacitors by capacitance, ripple current, ESR, life, and layout constraints.
Jul 24, 2026
LM5156QDSSRQ1 Automotive Boost Controller Selection Guide
Select LM5156QDSSRQ1 for automotive boost, SEPIC, or flyback designs using practical current, thermal, EMI, and sourcing criteria.
Jul 23, 2026
EEEFK1H470XP 50 V SMD Capacitor Decoupling Design Guide
Design EEEFK1H470XP into 12 V and 24 V rails with practical voltage margin, ripple, lifetime, layout, and mixed-capacitor checks.
Jul 23, 2026
Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit