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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - LinearS-812C24AY-Z2-U
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S-812C24AY-Z2-U - ABLIC Inc.

Manufacturer Part Number
S-812C24AY-Z2-U
Manufacturer
ABLIC
Allelco Part Number
98D-S-812C24AY-Z2-U
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
36,823 pcs available, New & Original
Parts Description
IC REG LINEAR 2.4V 30MA TO92-3
Package
TO-92-3
Data sheet
S-812C24AY-Z2-U.pdf
RoHs Status
RoHS Compliant
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Our certification
In stock: 36823
  • Unit Price: $0.593
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.593 $0.59
200+ $0.237 $47.40
500+ $0.229 $114.50
1000+ $0.225 $225.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

S-812C24AY-Z2-U Tech Specifications
ABLIC Inc. - S-812C24AY-Z2-U technical specifications, attributes, parameters and parts with similar specifications to ABLIC Inc. - S-812C24AY-Z2-U

Product Attribute Attribute Value
Manufacturer ABLIC
Voltage Dropout (Max) 0.95V @ 10mA
Voltage - Output (Min/Fixed) 2.4V
Voltage - Output (Max) -
Voltage - Input (Max) 16V
Supplier Device Package TO-92-3
Series S-812C
Protection Features -
Package / Case TO-226-3, TO-92-3 (TO-226AA)
Package Tape & Reel (TR)
PSRR -
Product Attribute Attribute Value
Output Type Fixed
Output Configuration Positive
Operating Temperature -40°C ~ 85°C (TA)
Number of Regulators 1
Mounting Type Through Hole
Current - Supply (Max) 1.6 µA
Current - Quiescent (Iq) 500 nA
Current - Output 30mA
Control Features -
Base Product Number S-812

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

What are the key performance limitations of the S-812C24AY-Z2-U when powering a 3.3V microcontroller with a 5V supply rail, and how does its dropout voltage affect efficiency at typical operating currents?
The S-812C24AY-Z2-U is a fixed 2.4V linear regulator and cannot output 3.3V, making it unsuitable for directly powering a 3.3V microcontroller from a 5V source. Even if used to step down to 2.4V for lower-power logic, the 0.95V maximum dropout at 10mA implies that input voltages must remain above 3.35V to maintain regulation. With a 5V input, the voltage drop across the device reaches 2.65V, resulting in significant power dissipation—approximately 79.5mW at 10mA load. This leads to poor efficiency (~48%) and may require heatsinking or derating due to thermal constraints within the TO-92 package.
How does the quiescent current and supply current characteristics of the S-812C24AY-Z2-U influence battery life in a low-power IoT sensor node application running on a coin cell?
In a battery-powered IoT node using a 3V lithium coin cell, the S-812C24AY-Z2-U draws only 500 nA of quiescent current and 1.6 µA during shutdown, which minimizes self-discharge impact. However, since the device regulates to 2.4V, it can only support sub-threshold operation of microcontrollers or sensors designed for 2.4V logic. If paired with a compatible ultra-low-power MCU, the extended quiescent current enables multi-year operation; but if the system requires higher logic levels, an additional boost or LDO stage would increase total current draw, reducing overall battery life despite this regulator’s favorable Iq.
Can the S-812C24AY-Z2-U safely handle repeated inrush current surges from capacitive loads up to 100µF without degradation or failure?
While the S-812C24AY-Z2-U has no explicit short-circuit or overcurrent protection listed, its internal design typically includes basic current limiting for transient events. Charging a 100µF capacitor from a 5V supply through this 30mA-rated LDO results in an initial inrush current potentially exceeding 30A if unmitigated by ESR alone. Such spikes far surpass the IC's capability and risk damaging the regulator or upstream circuitry. Therefore, external soft-start capacitors, series resistors, or pre-charge circuits should be implemented when driving large capacitive loads to protect the S-812C24AY-Z2-U and ensure reliable operation.
What thermal considerations arise when operating the S-812C24AY-Z2-U at full 30mA load with a 12V input in a compact PCB layout without airflow?
At a 12V input and 2.4V output delivering 30mA, the power dissipated by the S-812C24AY-Z2-U is approximately (12V - 2.4V) × 0.03A = 288 mW. Assuming a standard TO-92 package with a junction-to-ambient thermal resistance of around 200°C/W, this results in a temperature rise of ~57.6°C above ambient. In an enclosed space at 25°C ambient, the junction could reach nearly 83°C—still within limits—but margin is slim. Without a heat sink or copper pour, sustained full-load operation risks triggering thermal shutdown or accelerated aging. Layout improvements such as ground plane connections or airflow enhancement are advisable for robustness.
How does the S-812C24AY-Z2-U compare to the S-812C33AY-Z2-U in terms of output voltage compatibility and suitability for 3.3V digital systems?
The S-812C24AY-Z2-U provides a fixed 2.4V output, while the S-812C33AY-Z2-U delivers 3.3V under identical packaging and electrical architecture. For 3.3V digital systems—such as microcontrollers or sensors requiring VDD = 3.3V—the latter offers direct compatibility without level shifting. The S-812C24AY-Z2-U would require additional circuitry to interface with 3.3V logic, increasing complexity and cost. Both share similar quiescent currents and dropout profiles, so selection hinges primarily on required output voltage rather than dynamic performance.
Is the S-812C24AY-Z2-U suitable for automotive-grade applications requiring extended temperature ranges beyond -40°C to 85°C?
No, the S-812C24AY-Z2-U is specified for industrial temperatures from -40°C to 85°C (TA), which falls short of AEC-Q100 Grade 2 (up to 105°C) or Grade 1 (up to 125°C). While it may function in some automotive infotainment systems operating below 85°C, it lacks formal automotive qualification and reliability validation under prolonged thermal cycling or humidity exposure. Using it in safety-critical or high-reliability automotive subsystems introduces unverified risk, and alternative AEC-Q100-compliant regulators should be considered instead.
What precautions are necessary when substituting the S-812C24AY-Z2-U in legacy designs originally intended for the older S-812B series?
Although both belong to the S-812 family, the S-812C24AY-Z2-U features updated process technology yielding lower quiescent current (500 nA vs. typical 2 µA in B-series) and improved dropout performance (0.95V @ 10mA). However, pinout remains compatible (TO-92-3), allowing mechanical substitution. Designers should verify that input voltage margins accommodate the tighter dropout and confirm that minimum input conditions still satisfy system startup requirements. Additionally, ensure firmware doesn’t assume higher Iq behavior, though most modern MCUs will operate normally given sufficient headroom.
Why might a designer choose the S-812C24AY-Z2-U over a switching regulator for a low-noise analog signal path powered by a single-cell battery?
The S-812C24AY-Z2-U offers inherently low noise and ripple due to its linear regulation mechanism, which avoids high-frequency switching artifacts that can couple into sensitive analog circuits like ADCs or amplifiers. When powered by a 2.7V–5.5V source (e.g., Li-ion or supercapacitor), it maintains stable 2.4V output with minimal output impedance. Compared to buck converters, even those with filtering, the absence of EMI concerns and predictable PSRR make it preferable where spectral purity outweighs efficiency. However, this benefit only justifies the trade-off when total system power budget permits the ~60% efficiency penalty typical of linear regulation over wide input ranges.
How does the moisture sensitivity level (MSL) rating of the S-812C24AY-Z2-U affect reflow soldering procedures in automated SMT assembly?
Classified as MSL 1, the S-812C24AY-Z2-U has unlimited shelf life and tolerance to moisture absorption under normal storage. During reflow, it does not require bake-out or special handling prior to processing. Automated pick-and-place machines feeding tape-and-reel packaging can proceed directly with standard lead-free reflow profiles (e.g., peak 245°C for <5 seconds). This simplifies production logistics and reduces risk of delamination or bond wire lift-off associated with higher MSL components, making the S-812C24AY-Z2-U ideal for high-volume manufacturing environments.
What role does the base product number S-812 play in selecting compatible peripherals or evaluation boards for the S-812C24AY-Z2-U?
The S-812C24AY-Z2-U shares the same base product number (S-812) as other members of the S-812 series, enabling designers to leverage common reference designs and evaluation platforms. For instance, ABLIC provides demo boards supporting multiple fixed-output variants within this series, allowing quick comparison of 2.4V, 3.3V, or 5V options using identical test setups. This consistency simplifies prototyping, accelerates time-to-market, and ensures compatibility in multi-voltage systems where multiple regulators from the same family coexist on one board.

Parts with Similar Specifications

The three parts on the right have similar specifications to ABLIC Inc. S-812C24AY-Z2-U

Product Attribute S-812C24AY-B2-U S-812C24AUA-C2ET2U S-812C24AMC-C2ET2U S-812C24AY-B-G
Part Number S-812C24AY-B2-U S-812C24AUA-C2ET2U S-812C24AMC-C2ET2U S-812C24AY-B-G
Manufacturer ABLIC Inc. ABLIC Inc. ABLIC Inc. ABLIC Inc.
Protection Features - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage Dropout (Max) - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Current - Quiescent (Iq) - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Current - Supply (Max) - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Series - - - -
Current - Output - - - -
Control Features - - - -
Number of Regulators - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage - Input (Max) - - - -
Voltage - Output (Max) - - - -
PSRR - - - -
Output Configuration - - - -
Voltage - Output (Min/Fixed) - - - -
Output Type - Current - Unbuffered Voltage - Buffered -

S-812C24AY-Z2-U Datasheet PDF

Download S-812C24AY-Z2-U pdf datasheets and ABLIC Inc. documentation for S-812C24AY-Z2-U - ABLIC Inc..

Datasheets
Cylindrical Battery Holders.pdf
PCN Design/Specification
Solder Plating Material Chg 10/Dec/2018.pdf All Dev Materials Chg 23/Mar/2020.pdf

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Customer Reviews

Evaluation: 10 Articles

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    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
    Aug 13, 2026

    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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Shipment

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Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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S-812C24AY-Z2-U Image

S-812C24AY-Z2-U

ABLIC Inc.
98D-S-812C24AY-Z2-U

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