BYV27/. is a Vishay Semiconductors ultra fast avalanche sinterglass diode with the following characteristics: controlled avalanche characteristic, low forward voltage, ultra fast recovery time, glass passivated junction, hermetically sealed package, lead (Pb)-free component, component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC. The diode is suitable for very fast rectification applications such as switch mode power supplies.
The BYV27 series are ultra‑fast avalanche sinter‑glass diodes from Vishay, offering a controlled avalanche characteristic, low forward voltage, ultra‑fast recovery time, glass‑passivated junction, hermetically sealed SOD‑57 package, and RoHS‑compliant, lead‑free construction.
These diodes are designed for very fast rectification in switch‑mode power supplies, with voltage ratings from 50 V to 200 V, forward current up to 2 A, and thermal resistance as low as 45 K/W for a 10 mm lead length. The datasheet provides detailed mechanical data, absolute maximum ratings, electrical characteristics, and thermal performance curves. This manual is written in Chinese.
| Peak reverse voltage (VRSM) BYV27‑50 | 55 V |
|---|---|
| Peak reverse voltage (VRSM) BYV27‑150 | 165 V |
| Repetitive peak reverse voltage (VRRM) BYV27‑100 | 100 V |
| Average forward current (IFAV) | 2 A |
| Typical forward voltage (VF) at 3 A | 1.07 V |
| Reverse recovery time (trr) | 25 ns |
| Thermal resistance (RthJA) for 10 mm lead length | 45 K/W |
The typical forward voltage is about 1.07 V at 3 A.
Thermal resistance is 45 K/W for a 10 mm lead length and 100 K/W for longer leads.
Yes, it is a lead‑free component and complies with RoHS 2002/95/EC.