SB560
SB560 Schottky Barrier Diode
Overview
The SB560 is a high-performance Schottky barrier diode designed for applications requiring low forward voltage drop and fast switching capabilities. As a metal-to-silicon majority carrier rectifier, it offers superior performance compared to conventional PN junction diodes in high-frequency and high-efficiency applications. The device is particularly suitable for power supply circuits, reverse polarity protection, and freewheeling diode applications where minimal power loss is critical.
Constructed using advanced Schottky barrier technology, the SB560 features an optimized metal-semiconductor junction that enables faster switching speeds while maintaining excellent thermal characteristics. The diode's majority carrier conduction mechanism eliminates minority carrier storage time, resulting in virtually no reverse recovery time - a key advantage in high-speed switching applications.
Features
- Low forward voltage drop: Typically 0.45V at 5A, reducing power dissipation and improving efficiency
- High current capability: Continuous forward current rating of 5A
- Fast switching characteristics: Ideal for high-frequency applications up to several MHz
- Negligible reverse recovery time: Virtually no stored charge for improved switching efficiency
- High surge current capability: Withstands non-repetitive surge currents up to 150A
- Excellent thermal performance: Low thermal resistance junction-to-case
- High junction temperature rating: Operates up to 150°C maximum
- Guard ring construction: Provides ruggedness and reliability under transient conditions
Applications
The SB560's combination of low forward voltage and fast switching makes it ideal for numerous applications across various industries:
Power Conversion
- Switch-mode power supplies (SMPS)
- DC-DC converters
- Voltage clamping circuits
- Freewheeling diodes in power converters
Automotive Electronics
- Alternator rectification
- Voltage regulation
- Reverse polarity protection
Industrial Equipment
- Motor drive circuits
- Power factor correction circuits
- Uninterruptible power supplies (UPS)
Consumer Electronics
- LCD/LED TV power supplies
- Computer power management
- Battery charging circuits
Electrical Characteristics
Absolute Maximum Ratings
| Parameter | Value | Unit |
|---|---|---|
| Peak Repetitive Reverse Voltage | 60 | V |
| Average Rectified Forward Current | 5 | A |
| Non-Repetitive Surge Current (8.3ms single half sine-wave) | 150 | A |
| Operating Junction Temperature Range | -65 to +150 | °C |
| Storage Temperature Range | -65 to +150 | °C |
Electrical Characteristics (TJ = 25°C unless otherwise specified)
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Forward Voltage | IF = 5A | - | 0.45 | 0.55 | V |
| Reverse Leakage Current | VR = 60V | - | 0.1 | 1.0 | mA |
| Junction Capacitance | VR = 0V, f = 1MHz | - | 150 | 200 | pF |
| Thermal Resistance, Junction to Case | - | - | 3.0 | - | °C/W |
Package Information
The SB560 is available in the industry-standard DO-201AD (DO-27) package, which provides excellent thermal and mechanical characteristics for power applications.
Package Dimensions
- Body diameter: 5.2mm (max)
- Body length: 8.0mm (max)
- Lead diameter: 0.8mm (nominal)
- Lead length: 25.4mm (standard)
Package Marking
The device is marked with "SB560" for easy identification. The cathode end is indicated by a colored band.
Mounting Information
- Recommended hole diameter for PCB mounting: 1.0mm
- Recommended soldering temperature: 260°C maximum for 10 seconds
- Suggested torque for terminal connections: 0.5 N·m (5 kgf·cm) maximum
Thermal Considerations
For optimal performance and reliability, proper thermal management is essential:
- Maximum junction temperature: 150°C
- Thermal resistance, junction to ambient: 50°C/W (without heatsink)
- For continuous operation at maximum current, a heatsink is recommended
Reliability and Qualification
The SB560 is manufactured under strict quality control procedures and meets the following reliability standards:
- MIL-STD-750 environmental test methods
- JEDEC JESD22 reliability test methods
- RoHS compliant
- Halogen free
