DESCRIPTION The V78XX switching regulator series is designed to be a high efficiency drop-in replacement for 78XX linear regulators. Unlike linear regulators, the V78XX series does not require a heatsink, creating a much more compact solution. Built-in short-circuit and over-temperature protections ensure very rugged operations. Additionally, low ripple and noise performance make the parts useful in a wide range of applications.
FEATURES • efficiency up to 95% • 1.5A current output • operating temp: -40 ~ +85°C • short circuit protection • thermal shutdown • low ripple and noise • miniature SIP package, meets UL94-V0 requirement • ultra low power loss • negative output capacity • pin compatible to LM78XX series • MTBF >2,000,000 hours
Features : • Universal AC input/Full range • ZVS new technology • AC input active surge current limiting • High efficiency up to 91% • Built-in active PFC function,PF>0.95 • Protections: Short circuit / Overload / Over VOLTAGE / Over temperature • Forced air cooling by built-in DC ball bearing fan • Output VOLTAGE can be trimmed between 70~100% of the rated output VOLTAGE • High power density 8.3W/inch • Current sharing up to 6000W(3+1) • Alarm signal output • Built-in 12V/0.1A auxiliary output for remote control • Built-in remote ON-OFF control • Built-in remote sense function • 3 years warranty
DESCRIPTION These 1500 WATT TRANSIENT VOLTAGE SUPPRESSORS offer power-handling capabilities only found in larger packages. They are most often used for protecting against TRANSIENTs from inductive switching environments or induced secondary lightning effects as found in lower surge levels of IEC61000-4-5. With very fast response times, they are also effective in protection from ESD or EFT. Powermite® package features include a full metallic bottom that eliminates the possibility of solder-flux entrapment during assembly. They also provide unique locking tab acting as an integral heat sink. With its very short terminations, parasitic inductance is minimized to reduce VOLTAGE overshoots during fast-rise-time TRANSIENTs.
FEATURES • Very low profile surface mount package (1.1mm) • Integral heat sink-locking tabs • Compatible with automatic insertion equipment • Full metallic bottom eliminates flux entrapment • VOLTAGE range 5 volts to 170 volts • Available in both unidirectional or bi-directional (C suffix for bi-directional)
MAXIMUM RATINGS • Operating Temperature: -55°C to +150°C • Storage Temperature: -55°C to +150°C • 1500 WATT peak pulse power (10 / 1000 µsec.) • Forward Surge Current: 200 Amps at 8.3 ms (excluding bidirectional) • Repetition surge rate (duty factor): 0.01% • Thermal resistance: 2.5°C / WATT junction to tab 130°C / WATT junction to ambient with recommended footprint • Lead and mounting temperature: 260°C for 10 sec
APPLICATIONS / BENEFITS • Secondary lightning TRANSIENT protection • Inductive switching TRANSIENT protection • Small footprint • Very low parasitic inductance for minimal VOLTAGE overshoot • Compliant to IEC61000-4-2 and IEC61000-4-4 for ESD and EFT protection respectively and IEC61000-4-5 for surge levels defined herein
Small size utilizing a monolithic ferrite structure which results in excellent magnetic shielding. Operating Temperature Range –55°C to +125°C Terminations Suitable for flow & reflow soldering application. Current Rating The current at which the Impedance will change by a maximum of ±25%.
Protect sensitive electronics against VOLTAGE TRANSIENTs induced by inductive load switching and lightning. Ideal for the protection of I/O interfaces, Vcc bus, and other integrated circuits used in telecom, computer, datacom and industrial electronics.
FEATURES ● Breakdown VOLTAGE range 6.8 to 440 Volts ● Uni-directional and Bi-directional ● Glass passivated junction ● Low clamping factor ● 100% surge tested ● UL recognised
Upgraded K78XX-1500(L) series switching regulators are ideal replacement for K78xx linear regulators and LDOs. The efficiency of up to 95% means that very little energy is wasted as heat so there is no need for any heat sinks with their additional space and mounting costs. They are widely used in industrial control, instrumentation, and electric power applications.