DIODE

1N4248 – 800V 1A Standard Recovery Diode – Microchip Technology

This 1N4248 silicon rectifier diode from Microchip Technology delivers reliable high-voltage blocking capability for power conversion circuits. Engineered for robust performance in demanding environments, it features an 800V reverse voltage rating and 1A forward current handling – ideal for industrial power supplies, inverters, and legacy equipment maintenance. PCX ensures genuine Microchip components with fast shipping and dedicated technical support.

Key Features

• High Voltage Rating: 800V DC reverse voltage (V_R max)
• Forward Current: 1A average rectified output (I_O)
• Low Forward Drop: 1.3V max @ 3A (V_F)
• Standard Recovery: 5μs reverse recovery time (t_rr)
• Wide Temperature Range: Operates from -65°C to +175°C junction temperature
• Through-Hole Design: Axial package for secure PCB mounting

Technical Specifications

This single-phase rectifier diode utilizes proven silicon technology with a reverse leakage current of just 1μA at 800V. Housed in an industry-standard A (Axial) package, it supports easy integration into existing designs. Note: This part is marked obsolete by the manufacturer but remains available through PCX for legacy system support. View full datasheet here.

Typical Applications

• AC/DC power supply rectification stages
• Flyback and freewheeling diodes in SMPS designs
• Industrial motor drive circuits
• Battery charging systems
• Legacy equipment repair and maintenance

About Microchip Technology

Microchip Technology is a globally recognized leader in semiconductor solutions, renowned for its rigorous quality standards and extensive portfolio of microcontrollers, analog ICs, and discrete components. With decades of innovation, Microchip maintains ISO/TS 16949 certification, ensuring automotive-grade reliability across its product lines.

The company’s commitment to long-term product stability makes it a preferred partner for industrial and automotive applications. Microchip’s components undergo exhaustive testing for thermal performance, electrical stress tolerance, and environmental resilience, providing design engineers with trusted building blocks for critical systems.

About Standard Recovery Diodes

Standard recovery diodes serve as fundamental rectification components in power electronics, converting AC to DC current in circuits where switching speed isn’t critical. Their robust construction and high voltage/current ratings make them ideal for line-frequency applications like power supplies, welding equipment, and industrial controllers.

While slower than fast-recovery alternatives, these diodes offer superior surge handling and lower cost for medium-frequency designs. The axial package provides excellent thermal dissipation and mechanical stability, particularly beneficial in high-vibration environments or through-hole PCB assemblies requiring component serviceability.

Packaging

Available in Bulk packaging for prototyping or low-volume production needs. Contact PCX for reeled options in larger quantities.

Frequently Asked Questions

Q: What distinguishes standard recovery from fast-recovery diodes?
A: Standard recovery diodes (5μs t_rr like 1N4248) suit 50/60Hz rectification, while fast-recovery types (<500ns) minimize switching losses in high-frequency SMPS.

Q: Is this diode suitable for 230V AC input rectification?
A: Yes. The 800V rating safely accommodates 230V AC peak voltages (≈325V) with design margin.

Q: Can I parallel multiple 1N4248 diodes for higher current?
A: Not recommended due to potential current imbalance. Use a single diode rated for the required current instead.

Q: What heatsinking is required at 1A continuous current?
A: At 1A forward current (1.3V drop), expect ≈1.3W dissipation. Use PCB copper pours or external heatsinks for extended operation above 60°C ambient.

Q: Why choose an obsolete component?
A: Obsolete diodes like the 1N4248 remain essential for maintaining legacy systems where redesign isn’t feasible.

Q: Does PCX provide lifecycle support for discontinued parts?
A: Yes. We specialize in sourcing end-of-life components with full traceability and authenticity guarantees.

⚠️ Note: Product images are representational. Packaging may differ from stock photos.

Order Today for Fast Delivery!

Secure your 1N4248 diodes immediately through PCX. Enjoy guaranteed authentic Microchip Technology components, same-day shipping, and dedicated technical assistance. Submit your inquiry now to ensure availability!