STMicroelectronics STPS3L40SY Rectifier Diodes
Automotive 40 V, 3 A Low Drop Power Schottky Rectifier

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
STPS3L40SY
Base Model
Detailed Description
Automotive 40 V, 3 A Low Drop Power Schottky Rectifier
Package
DO-214AB, SMC
Lifecycle Status
Active
Datasheet
STPS3L40SY Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics STPS3L40SY Rectifier Diodes technical specifications.
General
Series
Q
Package / Case
DO-214AB, SMC
Mounting Type
Surface Mount
Lifecycle Status
Active
Speed
Fast Recovery =< 500ns, > 200mA (Io)
Current Reverse Leakage Vr
100 µA @ 40 V
Grade
Automotive
Technology
Schottky
Voltage Dc Reverse Vr Max
40 V
Operating Temperature Junction
-40°C ~ 150°C
Alternate Parts Comparison (STPS3L40SY vs STPS3L40UF vs STPS3L40S vs STPS4S200S)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | DO-214AB, SMC | DO-221AA, SMB Flat Leads | DO-214AB, SMC | DO-214AB, SMC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Lifecycle Status | Active | Active | Active | Active |
| Current Average Rectified IO | 3A | 3A | 3A | 4A |
| Current Reverse Leakage Vr | 100 µA @ 40 V | 100 µA @ 40 V | 100 µA @ 40 V | 5 µA @ 200 V |
| Description | -- | -- | -- | -- |
| Detailed Description | -- | -- | -- | -- |
| Operating Temperature Junction | -40°C ~ 150°C | 150°C (Max) | 150°C (Max) | 175°C (Max) |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Technology | Schottky | Schottky | Schottky | Schottky |
| Voltage Dc Reverse Vr Max | 40 V | 40 V | 40 V | 200 V |
| Voltage Forward Vf Max If | 500 mV @ 3 A | 500 mV @ 3 A | 500 mV @ 3 A | 870 mV @ 4 A |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
SBRS8340T3GonsemiDirectonsemi
Pin YesPkg YesElec Yes
Schottky Power Rectifier, Surface Mount, 3.0 A, 40 V, SMC, 2500-REEL
More Parts in Rectifier Diodes
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.