Si9120dy E3
Overview
Product sourcing insights & recommendations
The SI9120DY-E3 is a high-voltage universal input switchmode controller originally manufactured by Vishay Siliconix. While it was a benchmark component for high-efficiency offline power supplies (10V to 450VDC), it is now officially End of Life (EOL), with active production ending in 2014 Vishay.
Current market insights show that sourcing is primarily limited to secondary brokers and B2B platforms, where prices range from $1.00 to $9.99 depending on volume AlibabaAlibaba. Given its obsolete status, I have prepared a detailed market report that covers technical specifications, historical pricing trends, and strategic migration advice for new designs.
The report below provides a complete overview of the component's lifecycle and the broader electronic component market trends projected for 2026.
Based on the Si9120DY-E3 sourcing report, you can:
Si9120dy E3 Ic Vishay Siliconix
Products · 2 lists
SI9120DY T1 E3 Hot Sale Brand New Memory Integrated Circuit Microcontroller IC Component in Stock
Shenzhen Aosiwei Commercial Trade Co., Ltd.verified🇨🇳CN6 yrs
Original New Electronic Component Integrated circuit (IC) SOP14 SI9120DY-TI-E3
Shenzhen Annuosen Electronics Co., Ltd.🇨🇳CN6 yrs
In Stock Integrated Circuit for industrial automation and electronic equipment SI9121DY-5-T1-E3
New Original integrated circuit SI9407BDY-T1-E3 SO-8 Support BOM Fast delivery
New and Original IC VNH5019A-E Electronic Components Integrated Circuits IC Chip
Shenzhen Dianxian Technology Co., Ltd.verified🇨🇳CN5 yrs
Original New SIA910EDJ-T1-GE3 Integrated Circuits
New and Original SI4412DY Electronic component Integrated circuit IC chips
New Original IC TDA1519C/N3C SIL9P Integrated Circuit
Semtke Electronic Co., Ltd.🇨🇳CN4 yrs
Hot Selling Integrated Circuit SI1908DL-T1-E3 in Stock
Shenzhen Shenyixin Electronic Co., Ltd.🇨🇳CN9 yrs
SI9910 SI9910DJ SI9910 SI9910D SI9910D IC Chip Integrated Circuit in Stock
Shenzhen Dannuohong Electronics Co., Ltd.🇨🇳CN4 yrs
SI5908DC-T1-E3 NEW Integrated Circuit IC Chip-Global Sourcing RFQ Service Order in bulk and enjoy bulk discounts
Shenzhen Instantaneous Core Sheng Electronics Co., Ltd.🇨🇳CN5 yrs
Chips Integrated Circuits IC S912ZVML12F3MKH S912ZVML12F3MKH S912ZVML64F3MKHR S912ZVML12 S912ZVML31 S912ZVML64
New Original IC SIL9233ACTU QFP Integrated Circuit
Shenzhen Dongjiang Chuangfu Technology Co., Ltd.🇨🇳CN1 yr
SI9910 SI9910DJ SI9910 SI9910D SI9910D IC Chip Integrated Circuit in Stock
Shenzhen Kuanwei Technology Co., Ltd.🇨🇳CN1 yr
Circuit in Stock SI9424DY Integrated Circuit Kit Electronic Components IC Chip SI9424DY Other Ics
SI9910 SI9910DJ SI9910 SI9910D SI9910D IC Chip Integrated Circuit in Stock
Shenzhen Yuke Chip Electronics Co., Ltd.verified🇨🇳CN1 yr
New Original Integrated Circuit Ic Electronic Component Microcontroller SIL9687 SIL9687ACNUC
Shenzhen Yunnuo Technology Co., Ltd.🇨🇳CN7 yrs
B39841-B9011-E710-A03 B39841-B9003-E910-S09 B39841-B9425-M410-S05 B39841-B9425-M410-S01 IC chip integrated circuit
Electronic Components IC Chips Integrated Circuits IC SI9945BDY-T1-GE3
Shenzhen Caihongsheng Technology Co., Ltd.🇨🇳CN6 yrs
TS3DV20812RHHR VQFN-36 Integrated Circuit IC Chip New and Original in Stock B-O-M List Service
Vishay TPS53125PWR SOT-23-6 Integrated Circuits Specialized ICs
Shenzhen Aoxiang ElectronicsTechnology Co., Ltd.🇨🇳CN1 yr
SIHFR120-GE3 New Original Electronic ComponentsIntegrated CircuitsIC Chips
Electronic Components IC Chips Integrated Circuits IC SI9945BDY-T1-GE3
Shenzhen Wilsom Electronic Co., Ltd🇨🇳CN1 yr
Original New IC S912XHZ512F1VAG LQFP-144 Integrated circuit IC chip in stock
Beijing Mengxing Electronic Technology Co., Ltd.verified🇨🇳CN7 yrs
Memory Chip Chip CY7C1059DV33-10ZSXIT TSOPII-44 Electronic Parts CY7C1059 BOM Service for PCB
Shenzhen Jealon Micro Technology Co., Ltd.verified🇨🇳CN3 yrs
Hot selling MC9S12DG128CPV new Electronic components ic with low price
Shenzhen Weida Sheng Electronic Co., Ltd.🇨🇳CN8 yrs
Brand new integrate circuit chip IC SOIC-16W Si8631BD-B-IS with low price
(Interface IC )Loboratary Tested Discounted USB Interface IC Chips SP3232EEN-L/TR RS232 IC SOIC-16 in Stock
Shenzhen Sinosky Electronics Co., Ltd.verified🇨🇳CN9 yrs
IC V9990 Electronic Components Manufacturer Hot Selling New Integrated Circuit V9990
Shenzhen Maoxing Weiye Technology Co., Ltd.verified🇨🇳CN5 yrsDeep Dive · Full Report
Full Market Report
1 document · Live-fetched from source
Related Searches
Explore more sourcing topics & related categories
Sources & References
24 sources cited · Verified industry data & reports
Si9120 Universal Input Switchmode Controller
Vishay
The Si9120 is a BiC/DMOS integrated circuit designed for use in low-power, high-efficiency off-line power supplies.
SI9120DY-E3 - Mfr.: Vishay / Siliconix
Mouser Electronics
Specifications ; Fall Time: 75 ns ; Operating Supply Current: 1.5 mA ; Operating Supply Voltage: 9.5 V to 13.5 V ; Product Type: Switching Controllers.
SI9120DY-T1-E3 Datasheet(PDF) - Vishay Siliconix
ALLDATASHEET.COM
Part #: SI9120DY-T1-E3. Download. File Size: 85Kbytes. Page: 6 Pages. Description: Universal Input Switchmode Controller. Manufacturer: Vishay Siliconix.
SI9120DY-T1-E3 Vishay Siliconix
DigiKey
Buy now, ships today. SI9120DY-T1-E3 - Converter Offline Flyback, Forward Topology 40kHz ~ 1MHz 16-SOIC from Vishay Siliconix. View datasheets, pricing and ...
SI9120DY-E3 Electronic Distributor | Vishay / Siliconix
ariat-tech.com
SI9120DY-E3 Datasheet. Download SI9120DY-E3 Datasheet. Manufacturer Vishay ... Control Features. -. SI9120DY-E3 336pcs New and Original in Stock, Find ...
SI9120DY-T1-E3 | Vishay | AC DC Converters, Offline ...
Lisleapex
The SI9120DY-T1-E3 is suitable for applications that require high-speed switching and efficient power management. It is commonly used in power supplies, motor ...