BU4921F-TR
- Mfr.Part #
- BU4921F-TR
- Manufacturer
- ROHM Semiconductor
- Package / Case
- SC-82
- Datasheet
- Download
- Description
- IC SUPERVISOR 1 CHANNEL 4SOP
- Stock
- 100
- In Stock :
- 100
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- ROHM Semiconductor
- Product Category :
- Supervisors
- Quiescent Current :
- 350nA
- Power Supplies :
- 2.5/5V
- Undervoltage Threshold :
- 2.079V
- Overvoltage Threshold :
- 2.121V
- Number of Voltages Monitored :
- 1
- Min Reset Threshold Voltage :
- 2.079V
- ECCN Code :
- EAR99
- Number of Pins :
- 4
- Number of Terminations :
- 4
- Mount :
- Surface Mount
- Pin Count :
- 4
- Operating Temperature :
- -40°C~125°C TA
- Pbfree Code :
- yes
- Voltage - Threshold :
- 2.1V
- Watchdog Timer :
- No
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Reset :
- Active High/Active Low
- Max Supply Voltage :
- 7V
- RoHS Status :
- ROHS3 Compliant
- Max Supply Current :
- 1.05μA
- Terminal Form :
- Gull wing
- Packaging :
- Tape and Reel (TR)
- Length :
- 2mm
- Number of Channels :
- 1
- Type :
- Simple Reset/Power-On Reset
- Accuracy :
- 1 %
- Max Reset Threshold Voltage :
- 2.121V
- Min Supply Voltage :
- 700mV
- Number of Functions :
- 1
- Max Power Dissipation :
- 400mW
- Base Part Number :
- BU4921
- Adjustable Threshold :
- No
- Supply Voltage :
- 2.4V
- Output :
- Push-Pull, Totem Pole
- Lead Free :
- Lead Free
- Factory Lead Time :
- 7 Weeks
- Package / Case :
- SC-82
- Operating Supply Current :
- 550nA
- Published :
- 2009
- Mounting Type :
- Surface Mount
- Terminal Position :
- Dual
- Threshold Voltage :
- +2.1V
- Datasheets
- BU4921F-TR
BU4921F-TR Documents

Supervisors ROHM Semiconductor BU4921F-TR Overview
Introducing the BU4921F-TR, a cutting-edge integrated circuit supervisor meticulously crafted by ROHM Semiconductor. Designed with precision and reliability in mind, this supervisor IC boasts unparalleled performance in monitoring and controlling crucial parameters within electronic systems.
With its advanced functionality and robust construction, the BU4921F-TR is the epitome of excellence in the realm of electronic supervision. Ideal for a wide range of applications, this innovative component sets the standard for quality and dependability.
Experience the next generation of supervision technology with the BU4921F-TR from ROHM Semiconductor, delivering unmatched performance and reliability for your critical electronic systems.
BU4921F-TR Features
- Single-channel supervisor IC
- Compact 4-SOP package
- Exceptional precision and reliability
- Advanced monitoring and control capabilities
- Wide range of operating voltages
- Low power consumption
- Designed for easy integration into electronic systems
- ROHS compliant
BU4921F-TR Applications
- Power supply monitoring and control: The BU4921F-TR ensures stable operation and protects against voltage fluctuations in power supply units, enhancing overall system reliability in industrial equipment and consumer electronics.
- Battery management systems: Utilizing the BU4921F-TR, battery management systems can accurately monitor battery voltage levels, prevent overcharging, and optimize charging efficiency in electric vehicles and portable devices.
- Embedded systems: In embedded applications, the BU4921F-TR provides vital supervision functions, ensuring proper system initialization and reliable operation in automotive electronics, medical devices, and industrial machinery.
- Microcontroller reset circuits: The BU4921F-TR offers precise reset signals to microcontrollers, guaranteeing system integrity and preventing data corruption in automotive control units, home appliances, and smart devices.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















