Diotec Semiconductor IN400x/EM51x Standard Recovery Rectifier Diodes
Diotec Semiconductor IN400x and EM51x Standard Recovery Rectifier Diodes are designed for general‑purpose, low‑power rectification, particularly in 50/60Hz line‑frequency applications. The Diotec IN400x and EM51x diodes utilize a diffused junction construction in a rugged DO‑41 axial‑lead package. This package type provides mechanical durability, ease of installation, and effective heat dissipation. The series offers a wide range of reverse-voltage ratings from 50V to 2000V while maintaining a typical forward current capability of 1A. These ratings make the devices versatile for a broad set of voltage requirements.
These diodes feature a low forward voltage drop (~1.0V to 1.1V), low reverse leakage current, and high surge current capability (up to ~30A), ensuring reliable operation under both steady‑state and transient conditions. As standard recovery (low‑speed) devices, the IN400x and EM51x are intended for low‑frequency rectification rather than high‑speed switching, emphasizing robustness and long‑term reliability across a wide temperature range. Overall, the Diotec IN400x and EM51x diodes serve as a dependable, cost‑effective solution for AC‑DC conversion, polarity protection, and general power applications in consumer, industrial, and embedded electronic systems.
Features
- Wide reverse voltage range
- Moderate current capability
- High surge current capability
- Low forward voltage drop
- Low reverse leakage current
- Standard recovery (low-speed operation)
- Wide operating temperature range
- High-reliability construction
- DO‑41 axial lead package
- Durable mechanical characteristics
- High temperature and soldering capability
- Lead-free, Halogen-free, and RoHS/REACH-compliant
Applications
- AC-DC rectification (primary use)
- General‑purpose low‑power rectification
- Polarity protection
- Freewheeling/flyback diodes (inductive load protection)
- Power conversion circuits
- Battery chargers and DC supplies
- Blocking and isolation functions
Specifications
- 50V to 2000V maximum repetitive/surge peak reverse voltage range
- Maximum average forward rectified currents, R-load
- 1A at +75°C
- 0.8A at +100°C
- 5.4A maximum repetitive peak forward current at +75°C
- Maximum peak forward surge currents, half sine-wave
- 27A at 50Hz (10ms)
- 30A at 60Hz (8.3ms)
- 3.6A maximum fusing rating
- <1.1V maximum forward voltage
- Maximum leakage currents
- <5µA at +25°C
- <50µA at +100°C
- 15pF typical junction capacitance
- 1500ns typical reverse recovery time
- Typical thermal resistance
- 45K/W junction-to-ambient
- 15K/W junction-to-leads
- -50°C to +175°C junction temperature range
- UL 94V-0 flammability case rating