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20FE221K Dataheets PDF



Part Number 20FE221K
Manufacturers maida
Logo maida
Description Zinc Oxide Varistor
Datasheet 20FE221K Datasheet20FE221K Datasheet (PDF)

THERMALLY PROTECTED SERIES INTRODUCTION The Thermally Protected Series is designed for safe disconnection of the varistor from the circuit due to abnormal operating conditions. These components consist of 2 or 3 leaded wire leads, a thermal disconnect (FN, FM, FN), and have nominal diameters of 14mm, 20mm, and 25mm. Fusible link designs (FF, FT) are also available. STYLE DESIGNATION The Maida Style Number is the typical means to identify our components when ordered. The style number identifies.

  20FE221K   20FE221K


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THERMALLY PROTECTED SERIES INTRODUCTION The Thermally Protected Series is designed for safe disconnection of the varistor from the circuit due to abnormal operating conditions. These components consist of 2 or 3 leaded wire leads, a thermal disconnect (FN, FM, FN), and have nominal diameters of 14mm, 20mm, and 25mm. Fusible link designs (FF, FT) are also available. STYLE DESIGNATION The Maida Style Number is the typical means to identify our components when ordered. The style number identifies several parameters that are important for the characteristics of the device. An alternative ordering method, if known, is by our Item Number. The following example is the standard part numbering system when ordering our Thermally Protected Series components by the Maida Style Number: 14 FN 201 K 1. Nominal Disk Diameter 14 – 14mm 20 – 20mm 25 – 25mm 2. Lead Configuration FN – 2 leaded, thermal fuse FM – 3 leaded, thermal fuse on center lead FF – 3 leaded, fusible link on center lead FE – 3 leaded, thermal fuse on outer lead FT – 3 leaded, fusible link on outer lead 3. AC Voltage Rating Two significant figures plus number of zeroes that follow, i.e. 201 is 200 VDC 4. Varistor Voltage Range Tolerance STANDARD MARKING Minimum marking shall consist of an abbreviated style designation and, when space is available, the manufacturer’s initials or company logo. Example: MDC FV 14N201 Where: MDC - Company Initials FV - Fail safe Varistor 14 - Diameter N - Series (FN, FM, FE, FF, FT) 201 - Nominal DC Voltage Rating (200VDC) A manufacturing date code and/or special markings are available upon request. Other safety agency designations are included where applicable. Maida Development Company - [email protected] - (757) 723-0785 – www.maida.com THERMALLY PROTECTED SERIES ELECTRICAL SPECIFICATIONS Maida Style Number 14FE820K 14FM820K 14FN820K 20FE820K 20FM820K 20FN820K 14FE101K 14FM101K 14FN101K 20FE101K 20FM101K 20FN101K 14FE121K 14FM121K 14FN121K 20FE121K 20FM121K 20FN121K 14FE151K 14FM151K 14FN151K 20FE151K 20FM151K 20FN151K 25FE151K 25FM151K 25FN151K 14FE181K 14FM181K 14FN181K 20FE181K 20FM181K 20FN181K 25FE181K 25FM181K 25FN181K 14FE201K 14FM201K 14FN201K 20FE201K 20FM201K 20FN201K 25FE201K 25FM201K 25FN201K 14FE221K 14FM221K 14FN221K 20FE221K 20FM221K 20FN221K 25FE221K 25FM221K 25FN221K 14FE241K 14FM241K 14FN241K 20FE241K 20FM241K 20FN241K 25FE241K 25FM241K 25FN241K 14FE271K 14FM271K 14FN271K 20FE271K 20FM271K 20FN271K 25FE271K 25FM271K 25FN271K Recognitions To Nominal Minimum Safety Size Marking Agency Standards A B C D E F (mm) X 14 MDC-FV-14E820K X 14 MDC-FV-14M820K X 14 MDC-FV-14N820K X 20 MDC-FV-20E820K X 20 MDC-FV-20M820K X 20 MDC-FV-20N820K X 14 MDC-FV-14E101K X 14 MDC-FV-14M101K X 14 MDC-FV-14N101K X 20 MDC-FV-20E101K X 20 MDC-FV-20M101K X 20 MDC-FV-20N101K X 14 MDC-FV-14E121K X 14 MDC-FV-14M121K X 14 MDC-FV-14N121K X 20 MDC-FV-20E121K X 20 MDC-FV-20M121K X 20 MDC-FV-20N121K X 14 MDC-FV-14E151K X 14 MDC-FV-14M151K X 14 MDC-FV-14N151K X 20 MDC-FV-20E151K X 20 MDC-FV-20M151K X 20 MDC-FV-20N151K X 25 MDC-FV-25E151K X 25 MDC-FV-25M151K X 25 MDC-FV-25N151K X 14 MDC-FV-14E181K X 14 MDC-FV-14M181K X 14 MDC-FV-14N181K X 20 MDC-FV-20E181K X 20 MDC-FV-20M181K X 20 MDC-FV-20N181K X 25 MDC-FV-25E181K X 25 MDC-FV-25M181K X 25 MDC-FV-25N181K X 14 MDC-FV-14E201K X 14 MDC-FV-14M201K X 14 MDC-FV-14N201K X 20 MDC-FV-20E201K X 20 MDC-FV-20M201K X 20 MDC-FV-20N201K X 25 MDC-FV-25E201K X 25 MDC-FV-25M201K X 25 MDC-FV-25N201K X 14 MDC-FV-14E221K X 14 MDC-FV-14M221K X 14 MDC-FV-14N221K X 20 MDC-FV-20E221K X 20 MDC-FV-20M221K X 20 MDC-FV-20N221K X 25 MDC-FV-25E221K X 25 MDC-FV-25M221K X 25 MDC-FV-25N221K X 14 MDC-FV-14E241K X 14 MDC-FV-14M241K X 14 MDC-FV-14N241K X 20 MDC-FV-20E241K X 20 MDC-FV-20M241K X 20 MDC-FV-20N241K X 25 MDC-FV-25E241K X 25 MDC-FV-25M241K X 25 MDC-FV-25N241K X 14 MDC-FV-14E271K X 14 MDC-FV-14M271K X 14 MDC-FV-14N271K X 20 MDC-FV-20E271K X 20 MDC-FV-20M271K X 20 MDC-FV-20N271K X 25 MDC-FV-25E271K X 25 MDC-FV-25M271K X 25 MDC-FV-25N271K Continuous Applied Voltage (AC) 50 50 50 50 50 50 60 60 60 60 60 60 75 75 75 75 75 75 95 95 95 95 95 95 95 95 95 115 115 115 115 115 115 115 115 115 130 130 130 130 130 130 130 130 130 140 140 140 140 140 140 140 140 140 150 150 150 150 150 150 150 150 150 175 175 175 175 175 175 175 175 175 (DC) 65 65 65 65 65 65 85 85 85 85 85 85 100 100 100 100 100 100 125 125 125 125 125 125 125 125 125 150 150 150 150 150 150 150 150 150 170 170 170 170 170 170 170 170 170 180 180 180 180 180 180 180 180 180 200 200 200 200 200 200 200 200 200 225 225 225 225 225 225 225 225 225 Maximum Ratings Transient Peak Energy Current 8 x 20 µsec 10 x 1000 8 x 20 # Pulses µsec µsec 1 2 (J) (J) (A) (A) 27 27 4500 2500 27 27 4500 2500 27 27 4500 2500 56 56 10000 6500 56 56 10000 6500 56 56 10000 6500 33 33.


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