Future releases of rectifiers will continue to be driven by the trends for miniaturization and high component performance. To meet both criteria, there have been departures from the predominantly used silicon technology to better semiconductor materials such as silicon carbide (SiC) and gallium nitride (GaN).
These alternative inputs are expected to be widely adopted in the coming years, especially in ultrafast-recovery rectifiers for switching power supplies, inverters and other applications requiring high-reliability components.
In China, manufacturers offer mostly silicon-based rectifiers, including bridge, fast-diode and thyristor types. These components are available in axial-lead and SMD configurations, with the former still outnumbering units for surface mounting based on shipments.
These rectifiers are widely used in household appliances, consumer and automotive electronics, power systems, and communications and industrial products.
Suppliers use diodes, leads and shells and other materials sourced from domestic companies, turning to imported inputs only on buyers’ requests. Just the same, they ensure rectifiers produced comply with industry standards such as UL, CE and RoHS.
Material costs have been relatively stable, keeping prices of rectifiers almost unchanged. This trend is expected to persist in the months.
Axial-lead rectifier, 1,000V maximum DC-blocking voltage
Company: C.C. Ohm Enterprise Co. Ltd
This axial-lead rectifier from C.C. Ohm, the 1N4007, comes in a DO-41 package. It has a peak reverse repetitive voltage of 1,000V, maximum rms voltage of 700V, maximum DC-blocking voltage of 1,000V and forward average current of 1A.
MOQ: 1,000 units
Lead time: 15 days
SMD rectifier, 42V maximum rms voltage
Company: C.C. Ohm Enterprise Co. Ltd
The SL26 SMD rectifier from C.C. Ohm has 60V maximum repetitive peak reverse voltage, 42V maximum rms voltage, 60V maximum DC-blocking voltage and 2A maximum average forward rectified current. The operating junction and storage temperature range is -65 to 125 C.
MOQ: 1,000 units
Lead time: 15 days
Axial-lead rectifier, -65 to 175 C operating junction range
Company: Changzhou Trustec Co. Ltd
Changzhou Trustec’s model 10A10 is an axial-lead rectifier with maximum ratings of 600V repetitive peak reverse voltage, 420V rms voltage, 600V DC-blocking voltage and 10A average forward rectified current. It has 150pF typical junction capacitance and -65 to 175 C operating junction and storage temperature range.
MOQ: 200,000 units
Lead time: 15 days
Axial-lead rectifier, 2.5A average forward rectified current
Company: Changzhou Trustec Co. Ltd
The HER258 axial-lead rectifier from Changzhou Trustec has maximum values of 1,000V for repetitive peak reverse voltage, 700V for rms voltage, 1,000V for DC-blocking voltage and 2.5A for average forward rectified current. The typical junction capacitance is 20pF and the operating junction and storage temperature range is -65 to 150 C.
MOQ: 200,000 units
Lead time: 15 days
SMD rectifier, 4,500V VRRM
Company: Yangzhou Positioning Tech Co. Ltd
Yangzhou Positioning offers the YZPST-ZP679-4500V_1, an SMD rectifier with a peak reverse repetitive voltage of 4,500V, peak reverse nonrepetitive voltage of 4,600V and forward average current of 3,000A. This discrete component is CE-marked.
MOQ: Negotiable
Lead time: 15 days
SMD rectifier, 2,500V isolation voltage
Company: Yangzhou Positioning Tech Co. Ltd
This SMD rectifier from Yangzhou Positioning, the BR2510, has 1,000V peak reverse repetitive voltage, 1,100V peak reverse nonrepetitive voltage, 25A forward average current, 200A forward surge current and 2,500V isolation voltage. The operating junction temperature is -40 to 150 C.
MOQ: 1,000 units
Lead time: 20 days
