myMectronic
myMectronic

A Premier B2B Part Search

STMICROELECTRONICS STPS3L40S Power Schottky Rectifier

The STPS3L40 is a power Schottky rectifier designed for switched mode power supplies and high-frequency DC/DC converters. Packaged in SMC and SMBflat forms, this device is ideal for DC/DC chargers, offering low forward voltage drop, negligible switching losses, and avalanche capability. It features a maximum voltage of 40V, a maximum junction temperature of 150°C, and a surge non-repetitive forward current of 75A. Its low thermal resistance enhances heat dissipation, making it suitable for demanding power applications in compact, efficient designs.

Authorized Distributors
Source:Newark
Part No:STPS3L40S
Stock:1899
Inv Date:06-11-2026
Price: Unit price: $0.714
Buy/RFQ:
Source:DigiKey
Part No:STPS3L40S
Stock:5000
Inv Date:06-11-2026
Price: Unit price: $0.15833
Buy/RFQ:
Part No:STPS3L40S
Stock:10750
Inv Date:06-12-2026
Price: Unit price: $0.68
Buy/RFQ:
Part No:STPS3L40S
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.27
Buy/RFQ:
Part No:STPS3L40S
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.0904
Buy/RFQ:
Source:Arrow EU
Part No:STPS3L40S
Stock:50000
Inv Date:06-12-2026
Price: N/A
Buy/RFQ:
Part No:STPS3L40S
Stock:5000
Inv Date:06-12-2026
Price: N/A
Buy/RFQ:

STMICROELECTRONICS STPS3L40S Power Schottky Rectifier Specifications:

  • Repetitive peak reverse voltage: 40 V
  • Average forward current: 3 A (at 120°C)
  • Surge non-repetitive forward current: 75 A (tp=10 ms)
  • Maximum junction temperature: 150°C
  • Storage temperature range: -65°C to +175°C
  • Forward voltage drop: 0.62 V at 6A (T=25°C)
  • Thermal resistance junction to lead: 18°C/W (SMC), 10°C/W (SMBflat)
  • Leakage current: 0.5 mA at 25°C, 40 mA at 125°C
  • Avalanche power: 1300 W (Tj=25°C)
  • Device packaged in SMC and SMBflat, epoxy meets UL94V-0
  • Lead-free, environmentally compliant ECOPACK® packages
  • Maximum operating junction temperature: 150°C
  • Dimensions for SMC: length 5.55–6.25 mm, width 2.90–3.2 mm
  • Dimensions for SMBflat: length 3.30–3.95 mm, width 1.95–2.20 mm

Buy the STMicroelectronics STPS3L40S – Reliable Power Schottky Rectifier for Industrial Applications

Enhance your power electronic systems with the reliable STPS3L40S Schottky rectifier. Engineered for efficiency and durability, it handles 40V, 3A with low forward voltage drop, making it ideal for switch-mode power supplies, DC/DC converters, and chargers. Its compact SMC and SMBflat packages ensure easy integration into space-constrained designs. Featuring low thermal resistance and avalanche capability, this rectifier improves overall system reliability. Purchase online today for fast delivery and superior power management performance in your industrial and electronic projects.

Order your STMicroelectronics Series STPS3L40S today and give your power projects the dependable quality they deserve with high-performance rectification solutions.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS STPS3L40S?

You can click on the BUY or RFQ button to purchase STPS3L40S from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part STPS3L40S?

You can download the STPS3L40S datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of STPS3L40S?

STMICROELECTRONICS

STMICROELECTRONICS Part List

Browse and search other STMICROELECTRONICS parts, locate datasheets and stock

Sponsored by