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Richtek USA Inc. RT9818 Series

16 variants · Richtek USA Inc.

About the Richtek USA Inc. Richtek USA Inc. RT9818 Series series

The Richtek USA Inc. Richtek USA Inc. RT9818 Series series groups 16 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common mounting type of Surface Mount, number of voltages monitored of 1 and output of Open Drain or Open Collector. Variants differ by case, operating temperature and package, so you can match the exact case your application requires using the selection guide below. All listed Richtek USA Inc. RT9818 Series part numbers are active and orderable.

Select a variant by

Case
SC-74A, SOT-753 · TO-236-3, SC-59, SOT-23-3
Operating temperature
-40°C ~ 85°C (TA) · -40°C~85°C(TA)
Package
Tape & Reel (TR) Cut Tape (CT) · Tape & Reel (TR); Cut Tape (CT)
Reset timeout
0ms Typical · 35ms Minimum · 143ms Minimum
Type
Simple Reset/Power-On Reset · Voltage Detector
Voltage - threshold
1.8V · 2.5V · 2.7V · 2.8V · 2.9V · 3V · 3.5V · 4.2V · 4.4V

Variant comparison

ParameterRT9818A-28GVRT9818A-30GBRT9818A-30GVRT9818B-35GBRT9818C-18GVRT9818C-25GV
CaseTO-236-3, SC-59, SOT-23-3SC-74A, SOT-753TO-236-3, SC-59, SOT-23-3SC-74A, SOT-753TO-236-3, SC-59, SOT-23-3TO-236-3, SC-59, SOT-23-3
Operating temperature-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C~85°C(TA)-40°C ~ 85°C (TA)-40°C~85°C(TA)
PackageTape & Reel (TR) Cut Tape (CT)Tape & Reel (TR) Cut Tape (CT)Tape & Reel (TR) Cut Tape (CT)Tape & Reel (TR); Cut Tape (CT)Tape & Reel (TR) Cut Tape (CT)Tape & Reel (TR); Cut Tape (CT)
Reset timeout0ms Typical0ms Typical0ms Typical35ms Minimum143ms Minimum143ms Minimum
TypeSimple Reset/Power-On ResetVoltage DetectorSimple Reset/Power-On ResetVoltage DetectorSimple Reset/Power-On ResetSimple Reset/Power-On Reset
Voltage - threshold2.8V3V3V3.5V1.8V2.5V

Shared specifications

Mounting type
Surface Mount
Number of voltages monitored
1
Output
Open Drain or Open Collector
Reset
Active Low

Request a quote on any Richtek USA Inc. RT9818 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

Frequently asked questions

How do the Richtek USA Inc. Richtek USA Inc. RT9818 Series variants differ?
Richtek USA Inc. RT9818 Series part numbers differ by case, operating temperature, package and reset timeout. Use the selection guide above to pick by case.
How many Richtek USA Inc. Richtek USA Inc. RT9818 Series part numbers are listed?
16 Richtek USA Inc. Richtek USA Inc. RT9818 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for Richtek USA Inc. Richtek USA Inc. RT9818 Series?
Request a quote (RFQ) for any Richtek USA Inc. RT9818 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

All variants