5750 5650 Surface Mount Multilayer Metal Oxide Varistors MLV MVR2220-391G 5.7x5mm 391V 500A Transient Surge Suppressors

5750 5650 Surface Mount Multilayer Metal Oxide Varistors MLV MVR2220-391G 5.7x5mm 391V 500A Transient Surge Suppressors

Description

The surge protection series comprises a range of multilayer varistors for protection against severe transient overvoltage and high surge currents, such as 8/20 µs pulses with peak currents up to 6000 A and 10/700 µs pulses up to 45 A.

Dimension (mm)

Electrical Parameters

Features

• High energy absorption capability

• High surge load capability acc. to IEC 61000-4-5

• Reliable ESD protection up to 30 kV acc. to IEC 61000-4-2, level 4

• High surge voltage capability up to 2 kV for 10/700 µs acc. to IEC 61000-4-5 (types with VRMS,max ≤ 60 V)

• Bidirectional protection

• Low leakage current

• RoHS-compatible, lead-free

• PSpice simulation modesl available

• AEC - Q200 compliant

• Load Dump energy rated per SAE Specification J1113

• Leadless, surface mount chip form

• “Zero” Lead Inductance

• Variety of energy ratings available

• No temperature derating up to 125ºC ambient

• High peak surge current capability

• Low Profile, compact industry standard chip size; (1206, 1210, 1812 and 2220 Sizes)

• Inherent bidirectional clamping

• No Plastic or epoxy packaging assures better than 94V-0 flammability rating

Application

• Suppression of inductive switching or other transient events such as EFT and surge voltage at the circuit board level

• ESD protection for components sensitive to IEC 61000-4-2 (Level 4), MIL-STD883C, Method 3015.7, and other industry specifications (See Also the MLE or MLN Series)

• Provides on-board transient voltage protection for ICs and transistors • Used to help achieve electromagnetic compliance of end products

• Replace larger surface mount TVS Zeners in many applications

Industrial applications

Building safety and security applications

Power supplies

Control and measurement equipment

Hard disk drives

Design

Multilayer technology

Flammability rating better than UL 94 V-0

Termination (see “Soldering directions”):

                   CT types with nickel barrier terminations (AgNiSn), recommended for lead-free soldering, and compatible with tin/lead solder

                   CN types with silver-platin termination (AgPt) for reflow and wave soldering with solder on tin/lead basis or lead-free with a silver containing solder

V/I characteristics and derating curves

V/I and derating curves are attached to the data sheet. The curves are sorted by VRMS and then by case size, which is included in the type designation.

Load Dump Energy Capability

A Load Dump transient occurs when the alternator load in the automobile is abruptly reduced. The worst case scenario of this transient occurs when the battery is disconnected while operating at full rated load. There are a number of different Load Dump specifications in existence in the automotive industry, with the most common one being that recommended by the Society of Automotive Engineers, specification #SAE J1113. Because of the diversity of these Load Dump specifications Aolittel defines the Load Dump energy capability of the MVR suppressor range as that energy dissipated by the device itself, independent of the test circuit setup. The resultant Load Dump energy handling capability serves as an excellent figure of merit for the MVR suppressor. Standard Load Dump specifications require a device capability of 10 pulses at rated energy, across a temperature range of -40ºC to +125ºC. This capability requirement is well within the ratings of all of the MVR Series . The very high energy absorption capability of the MVR suppressor is achieved by means of a highly controlled manufacturing process. This technology ensures that a large volume of suppressor material, with an interdigitated layer construction, is available for energy absorption in an extremely small package. Unlike equivalent rated Silicon TVS diodes, the entire MVR device volume is available to dissipate the Load Dump energy. Hence, the peak temperatures generated by the Load Dump transient are significantly lower and evenly dissipated throughout the complete device . This even energy dissipation ensures that there are lower peak temperatures generated at the P-N grain boundaries of the MVR suppressor. There are a number of different size devices available in the MVR Series, each one with a load dump energy rating, which is size dependent.