BAT43XV2
Brand: onsemi
The BAT43XV2 is onsemi's small-signal Schottky barrier diode, delivering 30V reverse voltage and 200mA forward current in an ultra-compact SOD-523 flat-lead package only 0.60mm high. Its Schottky metal-semiconductor junction provides a low forward voltage drop (0.33V typical at 10mA) and 5ns reverse recovery time, enabling high-speed switching and efficient low-voltage operation that silicon PN-junction diodes cannot match. With matte tin lead finish, green mold compound, and MSL-1 moisture rating, it is the ideal diode for high-frequency signal detection, RF/microwave detection, reverse polarity protection, and low-voltage rectification in space-constrained surface-mount designs.
Product Specifications
BAT43XV2 - onsemi Schottky Barrier Diode, 30V, 200mA, SOD-523
onsemi - Low Forward Voltage Drop, 5ns Recovery, Ultra-Small Flat-Lead SMD Package
MFR Part #: BAT43XV2Superb SKU: SUP-BAT43XV2
In Stock - Ready to Ship
The BAT43XV2 is onsemi's small-signal Schottky barrier diode, delivering 30V reverse voltage and 200mA forward current in an ultra-compact SOD-523 flat-lead package only 0.60mm high. Its Schottky metal-semiconductor junction provides a low forward voltage drop (0.33V typical at 10mA) and 5ns reverse recovery time, enabling high-speed switching and efficient low-voltage operation that silicon PN-junction diodes cannot match. With matte tin lead finish, green mold compound, and MSL-1 moisture rating, it is the ideal diode for high-frequency signal detection, RF/microwave detection, reverse polarity protection, and low-voltage rectification in space-constrained surface-mount designs.
Request QuoteContact Sales
Key Features
Low forward voltage drop — 0.33V typical at 10mA (0.5V at 100mA), reducing power loss and improving efficiency in low-voltage circuits
30V maximum reverse voltage — suitable for low-voltage rectification, signal detection, and reverse polarity protection
200mA forward current — robust small-signal current handling for switching and detection applications
5ns reverse recovery time — near-instantaneous switching enables high-frequency operation far beyond silicon diode capability
4A peak surge current — withstands non-repetitive transient surges for reliable operation
SOD-523 ultra-small package — approximately 1.2 x 0.8mm footprint with flat leads at only 0.60mm height
Matte tin (Sn) lead finish — lead-free, RoHS-compliant, reliable solder joint formation
MSL-1 moisture sensitivity — no special moisture handling or baking required during SMT assembly
Green mold compound — halogen-free, environmentally friendly packaging
Technical Specifications
| Manufacturer | onsemi |
| Part Number | BAT43XV2 |
| Device Type | Schottky Barrier Diode |
| Maximum Reverse Voltage (VR) | 30 V |
| Maximum Forward Current (IF) | 200 mA |
| Forward Voltage Drop (VF) | 0.33 V typical @ 10 mA (0.5 V @ 100 mA) |
| Reverse Recovery Time (trr) | 5 ns |
| Peak Forward Voltage | 1 V (max) |
| Peak Surge Current (IFSM) | 4 A (non-repetitive) |
| Power Dissipation | 200 mW |
| Package | SOD-523 (2-pin, ultra-small flat lead) |
| Package Height | 0.60 mm |
| Mounting | Surface Mount (SMD) |
| Moisture Sensitivity Level | MSL-1 |
| Lead Finish | Matte Tin (Sn) |
| RoHS | Compliant (green mold compound) |
Product Details
Schottky Barrier — Speed and Low Drop
The BAT43XV2 uses a Schottky metal-semiconductor junction instead of a conventional silicon PN junction. This fundamental difference delivers two decisive advantages:
Low Forward Drop: 0.33V typical versus 0.7V for silicon diodes. In low-voltage rectification and signal detection, this halves conduction losses and preserves precious signal headroom.
Near-Zero Recovery: 5ns reverse recovery versus tens of nanoseconds for silicon. Schottky diodes are majority-carrier devices with no stored charge, enabling clean high-frequency switching without the reverse-recovery ringing that degrades silicon diode performance in fast circuits.
Key Applications
High-Speed Switching — fast signal routing and logic protection in digital circuits
Signal Detection — RF/microwave envelope detection, AM demodulation
Reverse Polarity Protection — low-loss input protection for battery-powered devices
Low-Voltage Rectification — flyback, boost, and charge-pump converter output rectification
Clamping / Protection — transient clamping and ESD protection for sensitive inputs
Sample & Hold Circuits — fast recovery for accurate analog sampling
Why Source BAT43XV2 from Superb Automation?
Discrete Component BOM — diodes + transistors + MOSFETs + passives + ICs, one consolidated PO
Volume Pricing — competitive reel pricing for high-volume production
SMT Assembly — SOD-523 ultra-small package placement with automated optical inspection
Alternative Sourcing — need BAT54/BAT85/1N4148 equivalents? We stock the full diode range
25 Years Trusted — Electronic components + PCBA partner since 2000
Genuine Parts — Direct from authorized onsemi channels, full lot traceability
Frequently Asked Questions
What is the BAT43XV2 used for?
A 30V/200mA small-signal Schottky diode for high-speed switching, signal detection, RF/microwave detection, reverse polarity protection, and low-voltage rectification. Its 5ns recovery and low forward drop make it ideal for high-frequency and low-voltage circuits.
What is the difference between Schottky and silicon diodes?
Schottky diodes use a metal-semiconductor junction: lower forward drop (0.33V vs 0.7V) and faster recovery (5ns vs tens of ns). Trade-off is lower reverse voltage (30V vs hundreds of volts). Choose Schottky for low-voltage, high-speed applications.
What is the forward voltage drop?
Approximately 0.33V at 10mA forward current, rising to about 0.5V at 100mA. This low VF is a key advantage for low-voltage rectification and signal detection where every millivolt matters.
What is the SOD-523 package size?
SOD-523 is an ultra-small 2-pin SMD package approximately 1.2mm x 0.8mm with only 0.60mm height. The flat-lead design suits ultra-compact PCB layouts, mobile devices, and high-density designs.
Is the BAT43XV2 RoHS compliant?
Yes. Matte tin lead finish, green (halogen-free) mold compound, fully RoHS compliant, MSL-1 moisture rating (no special handling required).