Is the SF1539HT available in DIP8 package?

Yes, the SF1539HT is available in DIP8 packages.

What is the maximum voltage rating of the integrated MOSFET?

The IC integrates a built-in 600V Power MOSFET.

Can I get a better price for this IC?

Yes, you can contact us for a better price.

SF1539HT Balance TM PWM Power Switch Fixed 65kHz Fsw IC

Name: SF1539HT Balance TM PWM Power Switch Fixed 65kHz Fsw IC
Brand: CTC Technology Co., Ltd.
SKU: 905442435

Guangdong, ChinaCTC Technology Co., Ltd.

US$0.14

2,000-7,999 Pieces

US$0.07

8,000-11,999 Pieces

US$0.04

12,000+ Pieces

Product profile

Customization

Available

Conductive Type

Unipolar Integrated Circuit

Integration

LSI

Model NO.

SF1539HT

Technics

Thin Film IC

Feature

Low Standby

shape

DIP

Trademark

Sifirst

Origin

China

HS Code

8542399000

Production Capacity

10000000

Key features

Fixed Switching Frequency: PWM switching frequency is fixed at 65KHz with shuffling for tight range trimming.

Built-in 600V MOSFET: Integrates a high-performance 600V power MOSFET for offline flyback converter applications.

Comprehensive Protection: Includes OTP, OVP, UVLO, OCP, OLP, and pins floating protection for reliable operation.

Audio Noise Free: Burst mode operation ensures excellent efficiency without generating audible noise.

Zero Recovery Gap: Proprietary algorithm achieves Zero OCP/OPP Recovery Gap for stable current limiting.

DIP8 Package: Available in standard DIP8 package for easy integration.

Short Lead Time: Typical lead time is 3-7 days with abundant inventory available.

Company profile

CTC Technology Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2013-01-03 CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤7.07h CertifiedTerms of Payment: LC, T/T, PayPal, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR, EXW

AI-Powered supplier vetting

SummaryCTC TECHNOLOGY CO., LTD. is presented as a China-based electrical and consumer-electronics manufacturer with an owned factory, multiple customer support centers, and product coverage spanning home appliances, mobile chargers, connectors, PCBA, and related electronic components. The supplier reports export activity since 2013, with exports representing 71%–90% of total sales. Production information includes three production lines, approximately 1,000,000 mobile chargers annually, more than 500 factory workers, and 6–10 quality-control staff. ISO 9001:2008, CE, RoHS, and BIS are stated for its home-appliance products. Evidence also shows transactions involving connector products with BAJAJ COMMUNICATIONS PRIVATE LIMITED and PENGUIN ELECTRONICS PRIVATE LIMITED. However, after-sales processes, financial credibility, customization execution, and innovation results are not sufficiently documented. Financial figures are omitted.

Supplier typeThe supplier is described as a manufacturer with its own factory, producing home appliances and mobile chargers while also offering electronic components, PCBA, charger solutions, and related products. Its stated business scope covers Electrical & Electronics and Consumer Electronics, with export activity conducted through agency and self-operated channels.

CertificationsThe supplier states that its products have been certified by ISO 9001:2008 quality system, CE, RoHS, and BIS. The evidence does not specify certification scope, validity, or whether all listed connector and charger products are covered, but it explicitly supports certification holding for its stated product range.

Production capacityThe supplier reports an owned factory, more than 500 factory workers, three production lines, approximately 1,000,000 mobile chargers of annual output, and 6–10 quality-control staff. It also states that 90% of wire, plastic parts, circuit boards, metal stamping, packaging, and other accessories are produced internally, providing explicit evidence of substantial manufacturing and vertical-integration capability.

Client casesShipment records associate CTC TECHNOLOGY CO., LTD. with BAJAJ COMMUNICATIONS PRIVATE LIMITED for Type-C connector products and with PENGUIN ELECTRONICS PRIVATE LIMITED for L-type electrical connectors. These records provide named-buyer evidence and repeated product transactions, although they do not establish order scale, satisfaction, duration, or performance outcomes.

Product Q&A

Q:What is the switching frequency of the SF1539HT?

The PWM switching frequency is fixed at 65KHz with shuffling.

Q:Does this IC support audio noise free operation?

Yes, it enters burst mode when output power falls below a given value to provide excellent efficiency without audio noise.

Q:What protection features are built-in?

It includes Under Voltage Lockout (UVLO), Over Temperature Protection (OTP), VCC Over Voltage Protection (OVP), Cycle-by-cycle Current Limiting (OCP), Over Load Protection (OLP), and Pins Floating Protection.

Q:What is the warranty period for this product?

We provide a 1-year warranty for this product.

Q:What is the typical lead time for delivery?

The typical lead time is 3-7 days.