Surge Components

Surge Components

  1. Large withstanding surge current capability in compact sizes.
  2. Lineup from general electronic equipment to industrial use.
  3. Wide range of varistor voltages.

Product features

Outlines

ZNR HFseries

znrの画像
  • With small size, contributing to mount space saving in power supply circuits in ECU
  • Conforming to load dump surge test of JASO A-1, ISO7637-2
  • Conforming to AEC Q-200
  • Conforming to ISO/TS16949
  • Achieving high reliability suitable for in-vehicle installation
    High temperature load: 2000hours at125℃
    Heat cycle: within the range of -40 to 125℃
  • Applicable to flow, reflow and hand soldering
 

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Examples

Various usage in ECU

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Control mechanism

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・ Load dump surge is generated when the battery line is disconnected while the alternator is generating power.  →Bypass the surge current to the GND to protect ECU

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Characteristics of products

  • Appearance /Structure

    Molded with resin
    Absorb large energy with small body

  • Basic characteristic

    The characteristics:
    same as Zener diode and having no polarity

  • Replacing TVS with Varistor

    Contributing to the reduction in size and weight of ECU

  • Characteristics of products JASO A-1 test (P/N:ERZHF2M220D)

  • Characteristics of products ISO7637-2 test

    ■Test Pulse 5a (12V system)

    test1test2test3

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Elemental technology

Increasing effective volume and surge tolerance realizes
miniaturization and weight reduction of components.

  • Zener diode

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  • ERZHF2M220D

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Please read the following guidelines and precautions before using any product technical information on this website.
Series/TypeCatalogImagePart NosFeaturesVaristor VoltageMaximum Peak CurrentInformation on RoHS complianceInformation on REACH 12th SVHC
-----vA--
Varistor Type: D Series: EERZE05Axxx
ERZE07Axxx
ERZE08Axxx
ERZE10Axxx
ERZE11Axxx
ERZE14Axxx
*Large withstanding surge current capability in compact sizes
*Large Energy Handling Capability absorbing transient overvoltages in compact sizes
*Wide range of varistor voltages
200 to 1100V600 to 10000Letter for Certificate of ComplianceReport of Confirmation
Varistor Type: D Series:VERZV05Dxxxxx
ERZV07Dxxxxx
ERZV09Dxxxxx
ERZV10Dxxxxx
ERZV14Dxxxxx
ERZV20Dxxxxx
*Standard type with radial leads for general surge protect applications
*For Surge Pulse
18 to 1800V125 to 10000Letter for Certificate of ComplianceReport of Confirmation
Varistor SMD type Series HFERZHF2M270*Suitable for requirements of Automotive
*Meet for Load Damp Surge
*Meet for Load Dump Surge Test (JASO D 001-94)
20 to 23.2, 272 Letter for Certificate of ComplianceReport of Confirmation
Varistor SMD type Series VFERZVF1Mxxx
ERZVF2Mxxx
*Large withstanding surge current capability, in compact size
*Low clamping voltage
22 to 470125 to 600 (at 8/20us)Letter for Certificate of ComplianceReport of Confirmation
Varistor Type: SCERZVS34Cxxx*Very large surge withstanding capability with a compact size
*Fast response to steep impulse voltage
200 to 950ln 20kA lmax. 40kA(at 8/20us)Letter for Certificate of ComplianceReport of Confirmation
Varistor Type: EERZC20EKxxx
ERZC32EKxxx
*Very large surge withstanding capability with a compact size
*Direct mounting on boards like a power distribution board available
*Fast response to steep impulse voltage
200 to 11005000 to 20000Letter for Certificate of ComplianceReport of Confirmation
Varistor UL and CSA Recoqnized with Tab, Type:CKERZC32CKxxxW
ERZC40CKxxxW
*UL and CSA recognized components
*High energy handling capability (210 to 750 joules),Large withstanding peak current(25 to 30kA)
*Common terminals for electrical connection and mounting
200 to 110020 to 25Letter for Certificate of ComplianceReport of Confirmation
Varistor Type:JERZA80JK112
ERZA80JK122
ERZA80JK561
Stack-type for heavy surge energy application(High power induced load and so on)560 to 1250 Letter for Certificate of ComplianceReport of Confirmation
Varistor Type:PERZA20PK102
ERZA20PK251
ERZA20PK501
*Plug-in type with deterioration indicator
*For application to industrial equipment
250 to 10005000 (at 8/20us)RoHS compliant (Please refer to the Related Information.) 
Varistor Type:GERZA20GS173H
ERZA20GS852H
ERZA48GK502
For protection to switching surge of high voltage(3.3,6.6kV)equipment5 to 17kV21kA to 5000RoHS compliant 
Varistor For Thyristor ProtectionERZC20EKxxxP
ERZC32EKxxxP
ERZUxxJPxxx
Thristor protection against swithing surge transformer510 to 2500 RoHS compliant 
Varistor UnitERZAxxxxxxxSurge absorber with connected ZNRs and circuit breaker in box22 to 10005000 to 50000RoHS compliant