Stk411-210e: Datasheet

| Model | Power (6Ω) | Supply (±V) | Typical Application | |-------------|------------|-------------|--------------------------------| | STK411-210E | 45W | 28V | Mid-power stereo receiver | | STK412-210E | 60W | 32V | High-power mains amplifier | | STK410-210E | 30W | 24V | Compact system or portable PA | | STK413-210E | 70W | 35V | Professional audio mixer |

The STK411-210E offers the best balance of power and thermal manageability for most home stereo applications.

The STK411-210E is a thick-film hybrid Integrated Circuit (IC) manufactured by Sanyo (now part of Panasonic)

. It is part of the STK411-200 series designed for high-performance audio power amplification, specifically catering to split-power supply applications. The IC is known for its ability to deliver significant audio power with low distortion in a relatively compact form factor, making it ideal for stereo systems. Core Specifications and Features Audio Power Amplifier: The IC functions as a 2-channel audio amplifier. Output Power:

Designed for medium-power applications, often providing 10W+10W or higher depending on the specific supply voltage and load. Total Harmonic Distortion (THD):

Delivers low distortion, often specified around 0.4%, which is excellent for consumer audio. Package Type:

Available in a small ZIP-22 (Zigzag Inline Package) package for easy mounting. Operating Temperature:

Specified to operate over an extended range of -40°C to 105°C (TA). Split Power Supply:

Uses a dual supply, enhancing its linearity and bass response. High Reliability: Stk411-210e Datasheet

Features thick-film technology, ensuring durability in audio applications. Applications

The STK411-210E is widely used in high-fidelity audio equipment, including: Compact stereo systems Car audio setups Home theater systems DIY audio power amplifier projects Design Advantages

The primary benefit of the STK411-210E is its integration of several transistors and passive components into a single package. This significantly reduces the need for large external components, simplifies the printed circuit board (PCB) design, and minimizes thermal interference between components, providing consistent sound quality and thermal stability. Note on Equivalents

The STK411 series includes several variants, such as the STK411-220E, STK411-230E, and STK411-240E, which are pin-compatible in the output range of 6W to 50W, allowing for easy upgrading of output power without redesigning the PCB. STK411-210E Datasheet, PDF - ALLDATASHEET.COM

Restorers frequently encounter these issues with STK411-210E modules:

In summary – The STK411-210E datasheet “story” is a ghost: a once-common part lost to time, where only the base STK411-210 specs survive. If you need to service an old stereo using that module, treat it as an STK411-210 and verify with a curve tracer or low-voltage test before powering up.

STK411-210E is a thick-film hybrid integrated circuit designed by (now part of ON Semiconductor). It is a 2-channel (stereo) audio power amplifier

specifically built for high-fidelity audio applications, often found in home theater systems and shelf stereos. 1. Key Specifications Typical Value Output Power 100W + 100W THD (Total Harmonic Distortion) At rated output Supply Voltage ( cap V sub cap C cap C end-sub plus or minus 33 plus or minus 50 Recommended operating range Max Supply Voltage plus or minus 70 Absolute maximum (no signal) Package Type SIP (Single In-line Package) Requires a large heatsink 2. Pin Configuration & Functions | Model | Power (6Ω) | Supply (±V)

The STK411-210E typically uses a multi-pin SIP arrangement. Key pin functions include: Input Pins: Receive the low-level audio signal. Output Pins: Send the amplified signal to the speakers. Power Supply ( Split rail power supply input. Standby/Mute Control:

Allows the amplifier to be silenced without cutting main power. Ground (GND): Central reference point for the circuit. 3. Notable Features Built-in Muting Circuit:

Reduces "pop" noise during power-on and power-off sequences. Thermal Protection:

Designed to withstand high temperatures, though external heat dissipation is mandatory. Compact Design:

The hybrid IC technology replaces dozens of discrete transistors and resistors, saving PCB space. Constant Current Circuit:

Ensures stable performance even if the power supply voltage fluctuates slightly. 4. Application Precautions Heat Dissipation: This IC generates significant heat. You

use a high-quality aluminum heatsink with thermal paste. Running it without a heatsink will cause immediate failure. Short Circuit Protection:

While robust, the IC can be destroyed if the speaker outputs are shorted while the unit is at high volume. External protection relays are recommended. Voltage Matching: In summary – The STK411-210E datasheet “story” is

Ensure your transformer and filter capacitors do not exceed the plus or minus 70

V absolute maximum, as line voltage spikes could push the DC rails past the safety limit. 5. Common Use Cases Mid-range home stereo receivers. Powered "subwoofer + satellite" speaker combos.

Replacement parts for vintage audio equipment (Sanyo, Sony, and AIWA frequently used these modules). If you are looking to repair a device build a new amplifier , would you like: circuit diagram (schematic) for a typical application? compatible replacement/equivalent Troubleshooting steps for a blown STK module?

Without the actual datasheet, I can only speculate on the specifics. The "STK" prefix might suggest a product from Sanyo (which is now part of ON Semiconductor), a well-known manufacturer of electronic components. The "411" could indicate a particular series or family of products, while "-210e" might denote a specific model or version within that series.

Components with codes like "STK411-210E" could potentially be power modules, voltage regulators, or amplifier circuits, given the "STK" prefix and the structure of the part number. These types of components are commonly used in a wide range of applications, from consumer electronics to industrial systems.

The STK411-210E is straightforward to implement. Below is a summarized circuit description based on the datasheet's reference design.

These values represent typical performance from the original datasheet.

| Parameter | Conditions | Min | Typ | Max | Unit | |-------------------------------|-------------------------------|------|------|------|------| | Quiescent Current (Total) | Vin = 0 | - | 80 | 120 | mA | | Output Power | THD = 10% | 40 | 45 | - | W/ch | | Output Power | THD = 0.4% | - | 30 | - | W/ch | | Total Harmonic Distortion | Po = 1W, f = 1 kHz | - | 0.08 | 0.2 | % | | Voltage Gain | Open loop | - | 55 | - | dB | | Closed-loop voltage gain | Feedback configured | - | 30 | - | dB | | Input Impedance | Non-inverting input | 30 | 50 | - | kΩ | | Output Offset Voltage | VIN = 0 | - | ±20 | ±100 | mV | | S/N Ratio | Po = 1W, A-weighted | - | 100 | - | dB | | Frequency Response | +0, –3 dB | 20 | - | 50k | Hz |

The “E” suffix likely indicates: