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Seiko Instruments Inc.

Seiko Instruments Inc.- Power Management & Control Modules

Seiko Instruments Inc. (SII) was founded in 1937 as a key manufacturing arm of the Seiko Group, with headquarters in Chiba, Japan. The company specializes in micromechatronics, nanotechnology, and low-power consumption technologies derived from decades of precision watchmaking. Its core business encompasses electronic devices, hard disk drive (HDD) components, large-format inkjet printers, network solutions, and scientific instruments. SII is particularly renowned for its high-performance quartz crystal devices, including MHz-band crystal units, 32.768 kHz tuning fork crystals, and high-precision TCXO/OCXO oscillators. Its product portfolio also features CMOS ICs such as real-time clocks (RTCs), voltage detectors, and power management ICs that leverage its crystal technology. The company's crystal device series, including the SML tuning fork crystals and SPXO crystal oscillators, are widely adopted in consumer electronics, automotive systems, and IoT applications. With a global reputation built on decades of innovation, SII is considered one of the world's top quartz crystal manufacturers, competing closely with NDK and KDS. Its technological excellence in miniaturization, frequency stability, and ultra-low power consumption sets it apart in the electronic components market. SII continues to drive advancements in timing solutions through continuous R&D investment and application of MEMS fabrication techniques.

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Power Management & Control Modules - 型号列表

2,033 parts in total

Package / Case

Voltage Rating

Type

Factory Pack Quantity

Voltage - Supply

Operating Temperature

Product Category

RoHS

Packaging

Mounting Style

Supplier Device Package

Battery Chemistry

Current - Supply

Frequency - Switching

Mfr Part #Quantity AvailablePriceRoHSPackagingTypeSeriesManufacturerFactory Pack QuantityMounting StylePackage / CaseVoltage RatingProduct CategoryNumber of OutputsFrequency - SwitchingVoltage - SupplyOperating TemperatureProductDuty Cycle (Max)Standard PackageMounting TypeSupplier Device PackageFunctionBattery ChemistryCurrent - SupplyCurrent - OutputProduct TypeResetAccuracyWatchdog TimerVoltage - ClampingVoltage - ThresholdNumber of Voltages Monitored
S-8232AEFT-T2
S-8232AEFT-T2

Battery Management 4.35V 2-Cell Serial

Seiko Instruments

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S-8243BAFFT-TB
S-8243BAFFT-TB

Battery Management 4.25V 3/4Cell Serial

Seiko Instruments

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S-8232AMFT-T2
S-8232AMFT-T2

Battery Management 4.19V 2-Cell Serial

Seiko Instruments

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S-8261AAUMD-G2UT2G
S-8261AAUMD-G2UT2G

Battery Protection Li-Ion/Li-Pol Packs 4.275V 6-Pin SOT-23 T/R Battery Management Lithium-Ion battery protection (1 cell) IC LI-ION BATT PROTECT SOT23-6

seiko instruments

30001: ¥3.40RoHS CompliantReelBattery Protection--3000SMD/SMT6SOT-234.275 V---1.5 V to 28 V-40 to 85 °C--Tape & ReelSurface MountSOT-23-6Over/Under Voltage ProtectionLi-Ion|Li-Pol Packs---------
S-8233AEFT-TB-G
S-8233AEFT-TB-G

Battery Protection Li-Ion Pack 4.25V 16-Pin TSSOP T/R Battery Management 4.25V 3-Cell Serial IC LI-ION BATT PROTECT 16-TSSOP

seiko instruments

101520: ¥11.492RoHS CompliantReelBattery Protection--2000SMD/SMT16TSSOP4.25 VBattery Management--2 to 24 V-20 to 70 °C--Tape & ReelSurface Mount16-TSSOPOver/Under Voltage ProtectionLi-Ion Pack50 uA-Li-Ion Protection------
S-8341A50AFT-T2
S-8341A50AFT-T2

Switching Controllers 5.0V Step-Up 2.0%

Seiko Instruments

101: ¥7.344NoReelSwitching Regulator Controller--3000SMD/SMTTSSOP-80.9 V to 6 VSwitching Controllers1600 kHz--Voltage Controllers89 %--------------
S-8341A33AFT-T2
S-8341A33AFT-T2

Switching Controllers 3.3V Step-Up 2.0%

Seiko Instruments

19251: ¥7.344NoReelSwitching Regulator Controller--3000SMD/SMTTSSOP-80.9 V to 6 VSwitching Controllers1600 kHz--Voltage Controllers89 %--------------
S-8521A33MC-AXS-T2
S-8521A33MC-AXS-T2

スイッチングコントローラ 3.3V 60uA Step-Down Switching Controllers 3.3V 60uA Step-Down

Seiko Instruments

471: ¥5.168NoReel---3000SMD/SMTSOT-23-52.5 V to 10 VSwitching Controllers1180 kHz----------120 mA-------
S-8521A25MC-AXK-T2
S-8521A25MC-AXK-T2

スイッチングコントローラ 2.5V 60uA Step-Down Switching Controllers 2.5V 60uA Step-Down

Seiko Instruments

351: ¥5.168NoReel---3000SMD/SMTSOT-23-52.5 V to 10 VSwitching Controllers1180 kHz----------120 mA-------
S-8341A30AFT-T2
S-8341A30AFT-T2

Switching Controllers 3.0V Step-Up 2.0%

Seiko Instruments

101: ¥7.344NoReelSwitching Regulator Controller--3000SMD/SMTTSSOP-80.9 V to 6 VSwitching Controllers1600 kHz--Voltage Controllers89 %--------------
S-80830CLY-B2-U
S-80830CLY-B2-U

Supervisory Circuits 3.0V 0.8uA CMOS Out

Seiko Instruments

24331: ¥5.44RoHS CompliantBulkVoltage Monitors--500Through HoleTO-92-Supervisory Circuits--10 V+ 85 C-------0.8 uA--No Manual Reset+/- 3 %No Watchdog3.0 V3 V1
S-80956CNPF-G9STFU
S-80956CNPF-G9STFU

IC VOLT DETECTOR 5.6V SNT-4A Supervisory Circuits Voltage Detect with External Delay 1.1uA

Seiko Instruments Inc.

-RoHS CompliantReelVoltage DetectorsS-T111 SeriesSII Semiconductor-------------------------
S-80956CLPF-G7STFU
S-80956CLPF-G7STFU

IC VOLT DETECTOR 5.6V SNT-4A Supervisory Circuits Voltage Detect with External Delay 1.1uA

Seiko Instruments Inc.

-RoHS CompliantReelVoltage DetectorsS-T111 SeriesSII Semiconductor-------------------------
S-80960CNPF-G9WTFU
S-80960CNPF-G9WTFU

IC VOLT DETECTOR 6.0V SNT-4A Supervisory Circuits Voltage Detect with External Delay 1.1uA

Seiko Instruments Inc.

-RoHS CompliantReelVoltage DetectorsS-T111 SeriesSII Semiconductor-------------------------
S-80960CLPF-G7WTFU
S-80960CLPF-G7WTFU

IC VOLT DETECTOR 6.0V SNT-4A Supervisory Circuits Voltage Detect with External Delay 1.1uA

Seiko Instruments Inc.

-RoHS CompliantReelVoltage DetectorsS-T111 SeriesSII Semiconductor-------------------------
S-80959CNPF-G9VTFU
S-80959CNPF-G9VTFU

IC VOLT DETECTOR 5.9V SNT-4A Supervisory Circuits Voltage Detect with External Delay 1.1uA

Seiko Instruments Inc.

-RoHS CompliantReelVoltage DetectorsS-T111 SeriesSII Semiconductor-------------------------
S-80959CLPF-G7VTFU
S-80959CLPF-G7VTFU

IC VOLT DETECTOR 5.9V SNT-4A Supervisory Circuits Voltage Detect with External Delay 1.1uA

Seiko Instruments Inc.

-RoHS CompliantReelVoltage DetectorsS-T111 SeriesSII Semiconductor-------------------------
S-80958CNPF-G9UTFU
S-80958CNPF-G9UTFU

IC VOLT DETECTOR 5.8V SNT-4A Supervisory Circuits Voltage Detect with External Delay 1.1uA

Seiko Instruments Inc.

-RoHS CompliantReelVoltage DetectorsS-T111 SeriesSII Semiconductor-------------------------
S-80957CNPF-G9TTFU
S-80957CNPF-G9TTFU

IC VOLT DETECTOR 5.7V SNT-4A Supervisory Circuits Voltage Detect with External Delay 1.1uA

Seiko Instruments Inc.

-RoHS CompliantReelVoltage DetectorsS-T111 SeriesSII Semiconductor-------------------------
S-80958CLPF-G7UTFU
S-80958CLPF-G7UTFU

IC VOLT DETECTOR 5.8V SNT-4A Supervisory Circuits Voltage Detect with External Delay 1.1uA

Seiko Instruments Inc.

-RoHS CompliantReelVoltage DetectorsS-T111 SeriesSII Semiconductor-------------------------
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