Specifications
| Attribute | Value |
| Supplier | Nexperia USA Inc. |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| DiodeType | Schottky |
| Voltage-DCReverse(Vr)(Max) | 40 V |
| Current-AverageRectified(Io) | 120mA (DC) |
| Voltage-Forward(Vf)(Max)@If | 1 V @ 40 mA |
| Speed | Small Signal =< 200mA (Io), Any Speed |
| Current-ReverseLeakage@Vr | 10 µA @ 40 V |
| Capacitance@VrF | 5pF @ 0V, 1MHz |
| MountingType | Surface Mount |
| Package/Case | SOD-882 |
| SupplierDevicePackage | DFN1006-2 |
Overview
Description
BAS40L is a dual Schottky barrier diode in a small SOT-23 style package. It’s used for high‑speed switching, low forward drop, and low leakage in compact circuits (e.g., logic, RF, protection, and rectification). The “L” variant denotes a specific dual-diode configuration in that family (exact pinout depends on the vendor).
315 is not a standard electrical spec. It’s most likely a date/lot or packaging/trace code used by the manufacturer or vendor. To be sure, check the exact datasheet for your BAS40L variant (e.g., BAS40L-xx) from your supplier; the datasheet will list Vr, If, Vf, and other electrical specs. If you share the vendor or a link, I can pull the precise numbers.
315 is not a standard electrical spec. It’s most likely a date/lot or packaging/trace code used by the manufacturer or vendor. To be sure, check the exact datasheet for your BAS40L variant (e.g., BAS40L-xx) from your supplier; the datasheet will list Vr, If, Vf, and other electrical specs. If you share the vendor or a link, I can pull the precise numbers.
Equivalent
315 is just the date code. BAS40L is a dual switching diode in SOT-23; exact equivalents depend on the pinout (common cathode vs. common anode). Common cross-references (same footprint) are:
- BAV99 (dual switching diodes, SOT-23)
- MMBD4148 (dual, SMD variants LL4148/1N4148W)
Please confirm the BAS40L pinout/package you have to give precise substitutes.
- BAV99 (dual switching diodes, SOT-23)
- MMBD4148 (dual, SMD variants LL4148/1N4148W)
Please confirm the BAS40L pinout/package you have to give precise substitutes.
Features
Short features of BAS40L (dual Schottky diodes in one package, SOT-23):
- Dual Schottky barrier diodes (common cathode in most BAS40L variants)
- Package: SOT-23, 3 leads
- Reverse voltage: around 40 V per diode
- Maximum forward current (per diode): typically ~200 mA
- Low forward voltage drop: ~0.2–0.3 V at moderate currents
- Very fast switching (no minority-carrier storage)
- Low leakage current (increases with temperature)
- Low junction capacitance (suitable for high-speed/high-frequency use)
- Wide operating temp range: typically -55 to +125 °C
- RoHS compliant (lead-free)
Note: exact pinout (common cathode/anode) and ratings can vary by lot/version; consult the specific datasheet for your BAS40L variant.
- Dual Schottky barrier diodes (common cathode in most BAS40L variants)
- Package: SOT-23, 3 leads
- Reverse voltage: around 40 V per diode
- Maximum forward current (per diode): typically ~200 mA
- Low forward voltage drop: ~0.2–0.3 V at moderate currents
- Very fast switching (no minority-carrier storage)
- Low leakage current (increases with temperature)
- Low junction capacitance (suitable for high-speed/high-frequency use)
- Wide operating temp range: typically -55 to +125 °C
- RoHS compliant (lead-free)
Note: exact pinout (common cathode/anode) and ratings can vary by lot/version; consult the specific datasheet for your BAS40L variant.
Pinout
- Pin count: 3 pins
- Function: Dual Schottky barrier diodes with a common cathode (two diodes share pin 3; pin 1 and pin 2 are the anodes). In BAS40L,315 the common pin is the cathode.
- Function: Dual Schottky barrier diodes with a common cathode (two diodes share pin 3; pin 1 and pin 2 are the anodes). In BAS40L,315 the common pin is the cathode.
Manufacturer
BAS40L,315 isn’t tied to a single exclusive maker. It’s a common fast-switching diode produced by several vendors, notably Vishay Intertechnology and Nexperia (formerly Philips/NXP). The “315” is typically a date/lot code and doesn’t identify a unique manufacturer.
Both Vishay and Nexperia are global semiconductor companies that design and manufacture discrete components (diodes, transistors, etc.) and other electronic components used across many industries.
Both Vishay and Nexperia are global semiconductor companies that design and manufacture discrete components (diodes, transistors, etc.) and other electronic components used across many industries.
Application
BAS40L,315 is a dual Schottky diode (low forward drop, fast switching). Typical application areas:
- High-speed switching and diode-logic (OR-ing) in digital/CMOS circuits
- RF front-ends: detectors, mixers, envelope detectors, clamp circuits
- Input protection and level shifting for microcontrollers and logic interfaces
- Low-current rectification and freewheeling in switch-mode power supplies
- Pulse shaping, peak-detection, and waveform-clipping applications
- High-speed switching and diode-logic (OR-ing) in digital/CMOS circuits
- RF front-ends: detectors, mixers, envelope detectors, clamp circuits
- Input protection and level shifting for microcontrollers and logic interfaces
- Low-current rectification and freewheeling in switch-mode power supplies
- Pulse shaping, peak-detection, and waveform-clipping applications
Package
SOT-23-3 (3-pin) surface-mount package. The “315” is likely a date/lot code, not a package designation.
