This document describes the features and characteristics of SB530/540/560 5A power diodes, including low cost, metal to silicon rectifier, low power loss, high efficiency, high current capability, low VF, high surge capacity, epitaxial construction, etc. Suitable for low voltage, high frequency inverters, free wheeling, and polarity protection applications.
The SB530, SB540, and SB560 are 5 A power diodes offered by Multicomp. They feature a metal‑to‑silicon rectifier with majority carrier conduction, low power loss, high efficiency, high surge capacity, and an epitaxial construction. The devices are designed for low‑voltage, high‑frequency inverter, free‑wheeling, and polarity‑protection applications and can withstand high‑temperature soldering (250 °C for 10 s, 0.375 in lead length under 2.3 kg tension).
Maximum ratings include a peak reverse voltage of 30 V (SB530) or 40 V (SB540), RMS voltage of 21 V/28 V, average forward current of 5 A, and a peak forward surge current of 150 A (8.3 ms half‑sine). The diodes operate from –50 °C to +125 °C and have a typical thermal resistance of 0.6 °C/W (junction‑to‑lead). Mechanical data specify a DO‑201AD molded‑plastic case, axial leads, and a weight of 1.12 g.
| Maximum recurrent peak reverse voltage | 30 V (SB530) / 40 V (SB540) |
|---|---|
| Maximum RMS voltage | 21 V (SB530) / 28 V (SB540) |
| Maximum instantaneous forward voltage at 5 A | 0.55 V |
| Maximum DC reverse current at 25 °C | 0.05 A |
| Typical thermal resistance (junction‑to‑lead) | 0.6 °C/W |
High‑temperature soldering is guaranteed at 250 °C for 10 seconds with a 0.375 in (9.5 mm) lead length under a 2.3 kg tension.
They are intended for low‑voltage, high‑frequency inverters, free‑wheeling, and polarity‑protection applications.