International Rectifier introduces the PVT412A Series microelectronic relays (MERs). The new relays have two times more load current capability at ±400V off-state blocking with less than one-quarter device on-resistance than the earlier PVT412 Series MERs. This means that the new PVT412A series relays are more efficient and robust than the previous devices.
The new MERs can replace electromechanical relays, enabling significant gains in operational life and reliability over electromechanical relays, with smaller size and higher sensitivity. Other benefits include bounce-free (noiseless) switching, reduced power consumption through lower actuation currents and high levels of immunity to shock and vibration.
Typical applications for the PVT412A Series devices include on/off hookswitch, ringer injection, ground start and general switching. In addition to telecom applications, the PVT412A devices can replace electromechanical and reed relays in applications where high reliability and low on-resistance is required, such as remote utility metering and high voltage AC and DC industrial load switching.
The devices are rated for AC/DC load switching applications up to 240VACRMS and 300VDC at 240mA, and DC-only loads up to 300V at 360mA. In addition, the 4,000VACRMS input-to-output isolation rating meets the most stringent international electrical safety requirements.
| PartNumber | Package | Off-State Blocking | AC/DC On-Resistance | DC-Only On-Resistance | AC/DC Load Current | DC-Only Load Current |
| PVT412A | DIP-6 | +/-400V | 6Ohm | 2Ohm | 240mA | 360mA |
| PVT412AS | DIP-6, SMT | +/-400V | 6Ohm | 2Ohm | 240mA | 360mA |
| PVT412AS-T | DIP-6, SMT, T&R | +/-400V | 6Ohm | 2Ohm | 240mA | 360mA |
Data sheets for the new microelectronic relays are available on the IR Web site, www.irf.com.
Availability and Pricing
The new microelectronic relays are available immediately. Pricing is as follows: PVT412A, US $2.00 each, PVT412AS, US $2.03 each and the PVT412AS-T, US $2.08 each in 10,000-unit quantities.
