RT9819B-20GU3 [RICHTEK]

Name: RT9819B-20GU3
Brand: RICHTEK
SKU: RT9819B-20GU3
Availability: InStock

Part No:

RT9819B-20GU3

Category:

Power Management ICs

Manufacturer:

RICHTEK

Description:

The RT9819 is a micro-power voltage detector supervising the power supply voltage level for microprocessors or digital systems.

RoHS Status:

Datasheet:

Stock Status:

Available for RFQ

Pricing:

Request Volume Pricing

Quote Response:

Within 24 Hours

Shipping:

In-stock parts ship in 1–2 business days

Specification

Type

Parameter

Supply Current

8µA

Junction Temperature

-40°C ~ 125°C

ESD Hbm

2kV

Operating Temperature

-40°C ~ 85°C

RoHS Status

RoHS Compliant

RoHS Status

RoHS Compliant

Storage Temperature

-65°C ~ 125°C

ESD Mm

200V

Lead Temperature

260°C

Power Dissipation SC-70-3

0.25W

Power Dissipation SOT-23-3

0.4W

Power Dissipation WDFN-6L

1.7W

RT9819A Operating Voltage Max

6V

RT9819A Operating Voltage Min

0.9V

RT9819A Reset Timeout Period

0ms

RT9819B Operating Voltage Max

6V

RT9819B Operating Voltage Min

0.9V

RT9819B Reset Timeout Period

55ms

RT9819C Operating Voltage Max

6V

RT9819C Operating Voltage Min

0.9V

RT9819C Reset Timeout Period

220ms

RT9819D Operating Voltage Max

6V

RT9819D Operating Voltage Min

0.9V

RT9819D Reset Timeout Period

450ms

RT9819E Operating Voltage Max

6V

RT9819E Operating Voltage Min

1.1V

RT9819E Reset Timeout Period

0ms

RT9819F Operating Voltage Max

6V

RT9819F Operating Voltage Min

1.1V

RT9819F Reset Timeout Period

55ms

RT9819G Operating Voltage Max

6V

RT9819G Operating Voltage Min

1.1V

RT9819G Reset Timeout Period

220ms

RT9819H Operating Voltage Max

6V

RT9819H Operating Voltage Min

1.1V

RT9819H Reset Timeout Period

450ms

Reset Delay

20µs

Reset Threshold Max

5V

Reset Threshold Min

1.2V

Thermal Resistance SC-70-3

400°C/W

Thermal Resistance SOT-23-3

250°C/W

Thermal Resistance WDFN-6L

58.5°C/W

Threshold Accuracy

±1.5%

Threshold Hysteresis

0.01V

Products Detail

The RT9819 is a micro-power voltage detector that monitors power supply voltage levels for microprocessors and digital systems. It features internally fixed thresholds from 1.2V to 5V in 0.1V steps with ±1.5% accuracy, low supply current of 3μA, and requires no external components. The device provides a quick reset within 20μs and includes built-in recovery delay options of 0ms, 55ms, 220ms, and 450ms. It operates at a low functional supply voltage of 0.9V and uses a CMOS push-pull output. The RT9819 is available in small packages including SC-70-3, SC-82, SOT-23-3, and WDFN-6L 1.6x1.6, and is RoHS compliant and halogen free.

Key Features

Internally Fixed Threshold 1.2V to 5V in 0.1V Step
High Accuracy ±1.5%
Low Supply Current 3μA
No External Components Required
Quick Reset within 20μs
Built-in Recovery Delay Include 0ms, 55ms, 220ms, 450ms Options
Low Functional Supply Voltage 0.9V
CMOS Push-Pull Output
Small SC-70-3, SC-82, SOT-23-3 and WDFN-6L 1.6x1.6 Packages
RoHS Compliant and Halogen Free

Application scenarios

Computers
Controllers
Intelligent Instruments
Critical μP and μC Power Monitoring
Portable/Battery-Powered Equipment

Documents

Datasheets:

RT9819

Environmental Information:

RoHS2 Cert

Product FAQ

1. Is RT9819B-20GU3 available for RFQ?

Yes. RT9819B-20GU3 by RICHTEK is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

2. Why is there no fixed price for RT9819B-20GU3?

Pricing for RT9819B-20GU3 can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

3. What are the key specifications of RT9819B-20GU3?

RT9819B-20GU3 is a RICHTEK Power Management ICs with RT9819A Operating Voltage Max: 6V and RT9819A Operating Voltage Min: 0.9V. Review the product details or submit an RFQ if you need confirmation before purchase.

4. How fast can I get a quote for RT9819B-20GU3?

Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

5. How soon can RT9819B-20GU3 be shipped?

If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

6. Can you suggest alternatives to RT9819B-20GU3?

Yes. If RT9819B-20GU3 is unavailable, obsolete, or does not meet your required lead time, we can help check similar RICHTEK Power Management ICs parts or compatible alternatives.

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