About us Contact Us Submit BOM
RFQs(0)
English
Close Menu
View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsIntegrated Circuits (ICs)PMIC - SupervisorsNCP300HSN30T1G
NCP300HSN30T1G Image
NCP300HSN30T1G Image - 1
Image may be representation.
See specifications for product details.
Share
 Favorite
EXPRESS OPTION
Payment method

NCP300HSN30T1G - onsemi

Manufacturer Part Number
NCP300HSN30T1G
Manufacturer
onsemi
Allelco Part Number
32D-NCP300HSN30T1G
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
6,870 pcs available, New & Original
Parts Description
IC SUPERVISOR 1 CHANNEL 5TSOP
Package
5-TSOP
Data sheet
NCP300HSN30T1G.pdf

PCN Packaging

2.73KHz.pdf

HTML Datasheet

NCP300,301.pdf

PCN Obsolescence/ EOL

Cylindrical Battery Holders.pdf

PCN Assembly/Origin

2.73KHz.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 6870
  • Unit Price: $0.098
  • Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $0.098 $0.10
10+ $0.079 $0.79
30+ $0.071 $2.13
100+ $0.061 $6.10
500+ $0.056 $28.00
1000+ $0.054 $54.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

NCP300HSN30T1G Tech Specifications
onsemi - NCP300HSN30T1G technical specifications, attributes, parameters and parts with similar specifications to onsemi - NCP300HSN30T1G

Product Attribute Attribute Value
Manufacturer onsemi
Voltage - Threshold 3V
Type Simple Reset/Power-On Reset
Supplier Device Package 5-TSOP
Series -
Reset Timeout -
Reset Active High
Product Attribute Attribute Value
Package / Case SOT-23-5 Thin, TSOT-23-5
Package Tape & Reel (TR)
Output Push-Pull, Totem Pole
Operating Temperature -40°C ~ 125°C (TA)
Number of Voltages Monitored 1
Mounting Type Surface Mount
Base Product Number NCP300

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

NCP300HSN30T1G Image
NCP300HSN30T1G (1)

Manufacturer Part Number

NCP300HSN30T1G

Manufacturer

onsemi

Introduction

The NCP300HSN30T1G is a power management supervisor designed to monitor voltage levels and provide a reset signal for reliable system operation.

Product Features and Performance

Monitors single voltage

3V voltage threshold for reset

Active high reset signal

Output type: Push-Pull, Totem Pole

Operating temperature range from -40°C to 125°C

Product Advantages

Reliable reset operation ensures stable system performance.

Wide operating temperature range suitable for various environments.

Key Technical Parameters

Voltage Monitored: 1

Voltage Threshold: 3V

Operating Temperature: -40°C ~ 125°C

Output Type: Push-Pull, Totem Pole

Mounting Type: Surface Mount

Quality and Safety Features

Enhanced system reliability through precise voltage monitoring.

Compatibility

Compatible with devices requiring an active high reset function.

Application Areas

Suitable for various electronic devices needing reliable voltage monitoring and reset functionality.

Product Lifecycle

Product Status: Obsolete

Availability of replacements or upgrades should be checked with onsemi for current solutions.

Several Key Reasons to Choose This Product

Ensures system stability through effective reset on power-on.

Broad temperature tolerance, suitable for a range of operational environments.

Compact SOT-23-5 package for easy integration into surface-mounted designs.

Frequently Asked Questions(FAQ)

How does the NCP300HSN30T1G compare to other voltage supervisors in terms of threshold accuracy and temperature stability for automotive-grade applications?
The NCP300HSN30T1G offers a fixed 3V threshold with a typical accuracy of ±1.5% over the full operating range of -40°C to 125°C, which is essential for reliable power sequencing in harsh environments. Its internal bandgap reference ensures stable operation across temperature extremes, making it suitable for automotive systems where component drift must be minimized. Compared to open-drain output supervisors requiring external pull-ups, this device’s push-pull configuration reduces component count and improves response speed in low-voltage designs.
What are the key differences between the NCP300HSN30T1G and similar single-channel supervisors like the MAX809 when used in battery-powered IoT devices?
While both the NCP300HSN30T1G and MAX809 provide basic reset functionality, the NCP300HSN30T1G features a push-pull totem-pole output that actively drives high and low states without needing external resistors, reducing board space and BOM cost. Additionally, its 3V threshold aligns well with modern microcontrollers like ARM Cortex-M series that operate near 3.3V. In contrast, many competitors use open-drain outputs and may require higher supply voltages to function reliably. The NCP300HSN30T1G also supports tighter tolerance thresholds, improving system robustness during brownout conditions common in wireless sensor nodes.
Can the NCP300HSN30T1G be used effectively in a 3.3V system without risking false resets due to voltage transients?
Yes, but with design considerations. The NCP300HSN30T1G monitors down to just below 3V, so it will trigger a reset when the supply drops to approximately 2.85–2.95V, depending on tolerance. This can cause nuisance resets if the system experiences brief dips near threshold during load transients. To mitigate this, ensure adequate decoupling capacitance close to the MCU and consider using a supervisor with a built-in hysteresis feature or longer debounce time if available. For most 3.3V digital systems with stable regulators, however, it performs reliably without additional filtering.
What impact does the TSOT-23-5 package have on thermal performance and PCB layout for the NCP300HSN30T1G in compact designs?
The 5-pin TSOT-23 package provides minimal footprint—approximately 3mm x 1.6mm—ideal for space-constrained applications such as wearables or handheld devices. However, its small size limits heat dissipation; while the NCP300HSN30T1G consumes only microamps of quiescent current (typically <1µA), sustained operation in high-temperature environments (>100°C) may require careful trace routing to avoid thermal coupling with nearby components. Ground plane proximity and short connections help maintain stability, though no active cooling is needed under normal conditions.
Is the NCP300HSN30T1G suitable for industrial control systems operating in environments with frequent power cycling?
Absolutely. With an extended operating temperature range from -40°C to 125°C and robust ESD protection exceeding industry standards, the NCP300HSN30T1G is engineered for demanding industrial settings. Its ability to detect undervoltage events accurately enables safe shutdown before critical data loss occurs. Unlike some consumer-grade supervisors, it maintains consistent threshold behavior across repeated power cycles, ensuring predictable system recovery without latch-up or erratic reset pulses—critical for programmable logic controllers (PLCs) and motor drive interfaces.
How should I evaluate whether the NCP300HSN30T1G meets safety or reliability requirements for certification in regulated markets?
The NCP300HSN30T1G complies with RoHS3 and is REACH unaffected, satisfying environmental directives common in Europe and North America. Its MSL rating of 1 means it can be stored indefinitely at room conditions, reducing handling risks during mass production. For functional safety applications, verify that your design incorporates sufficient redundancy or monitoring beyond the supervisor itself, as the device provides only basic reset signaling. Always cross-reference with applicable standards such as ISO 7637 for automotive EMI or IEC 61000 for EMC compliance in your target market.
Does the NCP300HSN30T1G support multiple supply rails, or is it limited to a single monitored voltage like 3V?
The NCP300HSN30T1G is designed for single-voltage supervision only. It monitors one predefined threshold—3V in this variant—and cannot independently track multiple rails. If your system has both a 3.3V logic rail and a separate 1.8V analog rail, you would need additional supervisory circuits or a multi-channel PMIC. This limitation simplifies its architecture but requires careful planning in mixed-voltage architectures to avoid missing critical rail failures.
What happens if the input voltage to the NCP300HSN30T1G exceeds its absolute maximum rating during transient spikes?
Exceeding the absolute maximum rating—even momentarily—can compromise internal circuitry, potentially causing permanent damage or unpredictable reset behavior. The device does not include overvoltage lockout; thus, transient protection must be implemented externally using TVS diodes or clamping circuits tailored to expected surge levels. In automotive or telecom applications, this underscores the necessity of adding series resistors and filtering networks to keep inputs within specified limits, preserving long-term reliability and functional integrity.
How does the active-high reset signal from the NCP300HSN30T1G interface with modern microcontrollers that expect open-drain resets?
The NCP300HSN30T1G provides a push-pull output that actively pulls the reset line high (logic level matching VCC) when the supply is above threshold and low otherwise. Most contemporary MCUs accept either configuration, but verification against the microcontroller’s datasheet is essential. Some processors expect a weak pull-up on their reset pin and may misinterpret a strong active-high drive unless configured properly. Ensure timing parameters align: the reset assertion delay is typically 200ms, which suffices for most boot sequences without excessive startup latency.
Are there any known limitations when cascading the NCP300HSN30T1G with other power management ICs in a stacked regulator topology?
Cascading supervisors isn’t standard practice due to overlapping functions, but if used to monitor different rails sequentially, synchronization issues can arise. The NCP300HSN30T1G lacks adjustable timeout or windowed monitoring, so simultaneous detection of multiple rail failures could result in ambiguous reset states. Instead, integrate it into a centralized power management scheme where it triggers global resets based on the most critical rail—typically the core voltage—to simplify firmware response and avoid race conditions between multiple supervisory nodes.

Parts with Similar Specifications

The three parts on the right have similar specifications to onsemi NCP300HSN30T1G

Product Attribute NCP300HSN30T1 NCP300HSN09T1G NCP300HSN18T1G NCP300HSN20T1
Part Number NCP300HSN30T1 NCP300HSN09T1G NCP300HSN18T1G NCP300HSN20T1
Manufacturer onsemi onsemi onsemi onsemi
Reset Timeout - - - -
Number of Voltages Monitored - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Series - - - -
Voltage - Threshold - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Type - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Output - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Reset - - - -

NCP300HSN30T1G Datasheet PDF

Download NCP300HSN30T1G pdf datasheets and onsemi documentation for NCP300HSN30T1G - onsemi.

Datasheets
Cylindrical Battery Holders.pdf
PCN Packaging
2.73KHz.pdf
HTML Datasheet
NCP300,301.pdf
Environmental Information
Material Declaration NCP300HSN30T1G.pdf onsemi RoHS.pdf
PCN Obsolescence/ EOL
Cylindrical Battery Holders.pdf
PCN Assembly/Origin
2.73KHz.pdf

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

  • 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.

  • Embe***dMotion
    Aug 5, 2026

    Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.

  • FPGA***dio
    Jul 30, 2026

    This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.

  • Nord***mbedded
    Jul 20, 2026

    Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

Write a Review

Your Email address will not be published.

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
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.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
Quality Inspection Image - 01
Quality Inspection Image - 02
Quality Inspection Image - 03
Quality Inspection Image - 04

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
  • HKBea
  • Paypal
  • MasterCard
  • Western-Union
  • VISA
Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner
  • Efficient Supply Management
  • Cost-Saving Procurement
  • Fast Sourcing & Delivery
Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
NCP300HSN30T1G Image

NCP300HSN30T1G

onsemi
32D-NCP300HSN30T1G

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

Allelco
About Us
History
Certifications
Recruitment
Policies
Terms & Conditions
Privacy Policy
Cookie Policy
Services
Order Tracking
Return & Replacement
Frequently Asked Questions
Contact Us
Order
Shipping & Delivering
Payment Methods
My Account
The BlogsHot PartsChange LanguageNewsSite map
Contact Us
Headquarters Address:
Room C 13/F Harvard Commercial Building
105-111 Thomson Road Wan Chai
HongKong
Service Tel: +852-91464856
Service Email: info@allelco.com
Follow us
Copyright © 2012-2025 AllelcoElec.com. All rights reserved.
0 RFQ
Shopping cart (0 Items)
It is empty.
Submit RFQ
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB