STEF05SGR STMicroelectronics Integrated Circuit (SOT23 (8-Pin)) In Stock

The STEF05SGR from STMicroelectronics is a 3.6 A electronic fuse (eFuse) with an adjustable overcurrent threshold, providing single-channel load protection in a compact 8-pin SOT23 package for power distribution and overcurrent protection circuits.

ACTIVEIntegrated CircuitVerified Jul 2026
Package / Visual Reference
STEF05SGRSOT23 (8-Pin)
Quick Facts
Manufacturer
STMicroelectronics
Package
SOT23 (8-Pin)
Pin Count
8
Lifecycle
ACTIVE
Category
Integrated Circuit
Price
From $0.4011(MOQ 14)
Temp Range
-40.0°C to 125.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

What are the key features of STEF05SGR?

  • Integrated electronic fuse (eFuse) with 3.6 A current rating
  • User-adjustable overcurrent threshold for flexible protection setpoints
  • Single-channel, single-function protection architecture
  • Compact 8-pin SOT23 (TSSOP8-equivalent) package
  • Plastic/epoxy body per JESD-30 code R-PDSO-G8
  • 7.1-year rated YTEOL for long-term availability

What is STEF05SGR used for?

The STEF05SGR is used in power distribution circuits, USB and peripheral ports, and battery-powered systems where overcurrent protection up to 3.6 A is required. Its adjustable threshold allows designers to tailor trip points for specific load conditions in industrial and consumer electronics. The compact 8-pin SOT23 package also suits space-constrained board designs needing integrated eFuse protection instead of discrete fuse and comparator circuits.

What are the specifications of STEF05SGR?

Factory Lead Time18Weeks
YTEOL7.1
Adjustable ThresholdYES
Analog IC - Other TypeeFUSE
JESD-30 CodeR-PDSO-G8
Number of Channels1
Number of Functions1
Package Body MaterialPLASTIC/EPOXY
Package Equivalence CodeTSSOP8,.1
Package ShapeRECTANGULAR
Package StyleSMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Supply Voltage-Max (Vsup)5.5V
Supply Voltage-Min (Vsup)3.5V
Supply Voltage-Nom (Vsup)5V
Surface MountYES
Terminal FormGULL WING
Terminal Pitch0.65mm
Terminal PositionDUAL
PackageSOT23 (8-Pin)

Compliance & Regulatory

RoHS StatusCompliant
Lead-FreeYes (Pb-Free)
ECCNEAR99
HTS Code8542.39.00.60
Country of OriginMalaysia

Where can I find the STEF05SGR datasheet?

STEF05SGR Datasheet Download

Official datasheet from STMicroelectronics

What are equivalent replacements for STEF05SGR?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What current level does the STEF05SGR protect against as an electronic fuse?

This eFuse device provides overcurrent protection rated at 3.6 A with a user-adjustable threshold, allowing a single protected channel to trip at a customizable current limit for the downstream load.

What package does the STEF05SGR use and what is its lead time?

The STEF05SGR ships in a compact 8-pin SOT23 (TSSOP8-equivalent) package with a plastic/epoxy body, and STMicroelectronics lists a typical factory lead time of 18 weeks for this part.

Where would an adjustable-threshold eFuse like the STEF05SGR typically be applied?

Designers use this 3.6 A eFuse in USB ports, peripheral power rails, and battery-powered equipment needing configurable overcurrent protection, replacing discrete fuse-and-comparator circuits in a single 8-pin package.

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About STMicroelectronics

STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.

AvailabilityIn Stock
Reference Price (USD)
From $0.4011
Buy from 1pc · Factory-direct pricing
Qty.Unit PriceExt. Price
14+$0.4209$5.89
3000+$0.4178$1253.40
6000+$0.4150$2490.00
9000+$0.4100$3690.00
12000+$0.4085$4902.24
24000+$0.4011$9626.16
pcs
Unit price: $0.4209 · Total: $5.89

In Stock · 24h Response · Worldwide Shipping

Lead Time3-7 business days
MOQFrom 1 piece
ShippingDHL / FedEx / UPS
OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.

MR
Marco Rossi
CTO, AutoDrive Systems, Italy