AxxxxUx4 Series - Asymmetrical Multiport SIDACtor® - MS-013

Series: AxxxxUx4
Obsolete: 2021 -12-28 Availability: Phase Out/Obsolete

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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

This solid state SIDACtor® protection device is an integrated multichip solution for protecting multiple twisted pair from overvoltage conditions. Based on a six-pin surface mount SOIC package, it is equivalent to four discrete DO-214AA or two TO-220 packages. Available in surge current ratings up to 500A, the multiport line protector is ideal for densely populated line cards that cannot afford PCB inefficiencies or the use of series power resistors.

SIDACtor® devices are used to enable equipment to meet various regulatory requirements including GR 1089, ITU K.20, K.21 and K.45, IEC 60950, UL 60950, and TIA/EIA-IS-968 (formerly known as FCC Part 68).

Notes:
  • All measurements are made at an ambient temperature of 2 °C. Ipp applies to -40 °C through +85 °C temperature range.
  • Ipp is a repetitive surge rating and is guaranteed for the life of the product.
  • Listed SIDACtor® devices are bi-directional. All electrical parameters and surge ratings apply to forward and reverse polarities.
  • Vdrm is measured at Idrm.
  • Vs is measured at 100 V/µs
  • Special voltage (Vs & Vdrm) and holding current (Ih) requirements are available upon request.
  • Off-state capacitance is measured at 1 MHz with a 2 V bias and is a typical value.

Access specifications, certifications, check availability and order parts below

Catalog #VDRM T-R
(V)		VS T-R
(V)		Pins T-RCO 2V
T-R MAX
(pF)		CO 2V
T-R MIN
(pF)		IscurrIDRM @
VDRM
(μA)		IH (mA)di/dt @
110°C
(A/μs)		Regulatory RequirementsIpp5x310Ipp10x700Ipp2x10Ipp5x320Ipp8x20SamplesCompare
A1220UA4L2803503-1 6-42058005120500GR1089 INTER-BUILDING (SERIES757515075150Order
A1220UB4
Replaced By: A1220UB4L 		2803503-1 6-435108005120500GR1089 Intra-Building
GR1089 Inter-Building (Series Resistance Needed)
ITU K.20
ITU K.20 Enhanced
ITU K.21 Enhanced
TIA-968-A
YD/T 993-1998 Without Primary
YD/T 993-1998 With Primary (Series Resistance Needed)
A1225UA4
Replaced By: A1225UA4L 		3304203-1 6-42058005120500GR1089 Intra-Building
GR1089 Inter-Building (Series Resistance Needed)
ITU K.20 (Series Resistance Needed)
ITU K.20 Enhanced (Series Resistance Needed)
ITU K.21 Enhanced (Series Resistance Needed)
TIA-968-A (Series Resistance Needed)
YD/T 993-1998 Without Primary (Series Resistance Needed)
A1225UB4
Replaced By: A1225UB4L 		3304203-1 6-435108005120500GR1089 Intra-Building
GR1089 Inter-Building (Series Resistance Needed)
ITU K.20
ITU K.20 Enhanced
ITU K.21 Enhanced
TIA-968-A
YD/T 993-1998 Without Primary
YD/T 993-1998 With Primary (Series Resistance Needed)
A1225UB4L3304203-1 6-435108005120500GR1089 Intra-Building
GR1089 Inter-Building (Series Resistance Needed)
ITU K.20
ITU K.20 Enhanced
ITU K.21 Enhanced
TIA-968-A
YD/T 993-1998 Without Primary
YD/T 993-1998 With Primary (Series Resistance Needed)
A1220UA4
Obsolete: 2009 -02-01
Replaced By: A1220UA4L 		2803503-1 6-42058005120500GR1089 INTER-BUILDING (SERIES
GR1089 INTRA-BUILDING
ITU K.20 (SERIES RESISTANCE NE
ITU K.20 ENHANCED (SERIES RESI
ITU K.21 ENHANCED (SERIES RESI
TIA-968-A (SERIES RESISTANCE N
YD/T 993-1998 WITHOUT PRIMARY		757515075150
A1220UB4L
Obsolete: 2010 -07-12		2803503-1 6-435108005120500GR1089 INTER-BUILDING (SERIES100100250100250Order
A1220UC4
Obsolete: 2009 -02-01
Replaced By: A1220UC4L 		2803503-1 6-435108005120500GR1089 INTER BUILDING
GR1089 INTRA-BUILDING
ITU K.20
ITU K.20 ENHANCED
ITU K.21 ENHANCED
TIA-968-A
YD/T 993-1998 WITH PRIMARY
YD/T 993-1998 WITHOUT PRIMARY		200200500200400
A1220UC4L
Obsolete: 2021 -12-29		2803503-1 6-435208005120500GR1089 INTER BUILDING200200500200400
A1225UA4L
Obsolete: 2021 -12-29		3304203-1 6-42058005120500GR1089 INTER-BUILDING (SERIES757515075150
A1225UC4
Obsolete: 2009 -02-01
Replaced By: A1225UC4L 		3304203-1 6-435108005120500GR1089 INTER BUILDING
GR1089 INTRA-BUILDING
ITU K.20
ITU K.20 ENHANCED
ITU K.21 ENHANCED
TIA-968-A
YD/T 993-1998 WITH PRIMARY
YD/T 993-1998 WITHOUT PRIMARY		200200500200400
A1225UC4L
Obsolete: 2021 -12-29		3304203-1 6-435208005120500GR1089 INTER BUILDING200200500200400
Catalog # Certificates
Sorting icon
A1220UA4 uricon
A1220UA4L uricon
A1220UB4 uricon
A1220UB4L uricon
A1220UC4 uricon
A1220UC4L uricon
A1225UA4 uricon
A1225UA4L uricon
A1225UB4 uricon
A1225UB4L uricon
A1225UC4 uricon
A1225UC4L uricon
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
A1220UA4RP SIDACtor® ASYM 4Chp 100/180V 50A MS013 RoHS No 09/01/2004 PbFree No
A1220UA4TP SIDACtor® ASYM 4Chp 100/180V 50A MS013 RoHS No 09/01/2004 PbFree No
A1220UA4LRP SIDACtor® 4Chips 100/180V 500A MS013 RoH RoHS No 09/01/2004 PbFree No
A1220UA4LTP SIDACtor® 4Chips 100/180V 500A MS013 RoH RoHS No 09/01/2004 PbFree No
A1220UB4LTP SIDACtor® 4Chp 100/180V 500A MS013 RoHS RoHS No 09/01/2004 PbFree No
A1220UB4LRP SIDACtor® 4Chp 100/180V 500A MS013 RoHS RoHS No 09/01/2004 PbFree No
A1220UC4TP SIDACtor® ASYM 4Chp 100/180V 500A MS013 RoHS No 09/01/2004 PbFree No
A1220UC4RP SIDACtor® ASYM 4Chp 100/180V 500A MS013 RoHS No 09/01/2004 PbFree No
A1220UC4LTP SIDACtor® 4Chips 100/180V 500A MS013 RoH RoHS No 09/01/2004 PbFree No
A1220UC4LRP SIDACtor® 4Chips 100/180V 500A MS013 RoH RoHS No 09/01/2004 PbFree No
A1225UA4LTP SIDACtor® 4Chips 100/230V 500A MS013 RoH RoHS No 09/01/2004 PbFree No
A1225UA4LRP SIDACtor® 4Chips 100/230V 500A MS013 RoH RoHS No 09/01/2004 PbFree No
A1225UC4RP SIDACtor® ASYM 4Chp 100/230V 500A MS013 RoHS No 09/01/2004 PbFree No
A1225UC4TP SIDACtor® ASYM 4Chp 100/230V 500A MS013 RoHS No 09/01/2004 PbFree No
A1225UC4LRP SIDACtor® 4Chips 100/230V 500A MS013 RoH RoHS No 09/01/2004 PbFree No
A1225UC4LTP SIDACtor® 4Chips 100/230V 500A MS013 RoH RoHS No 09/01/2004 PbFree No
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