GTCA38 Series - Medium to High Surge GDT, 3 terminal, 8 mm, Axial Leaded

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Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, 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.

Helping to protect telecom equipment. Our GDTs offer surge protection over a broad voltage range, and low capacitance and many form factors including new surface-mount devices that make them suitable for many different applications and surge protection on power lines. Their low capacitance also reduces signal distortion.

High Accuracy, Low Insertion Loss

  • Low capacitance and insertion loss
  • Crowbar device with low arc voltage
  • High accuracy spark-over voltages for high precision designs
  • Optional fail-short mechanisms
  • RoHS Compliant, Halogen free

Overvoltage Fault Protection

  • Provides overvoltage fault protection against damage caused by high energy surges
  • Suitable for use in sensitive equipment due to impulse sparkover response
  • Suitable for high-frequency applications
  • New surface-mount devices for automated manufacturing

Telecommunications, Industrial, and Consumer Electronics

  • MDF modules
  • xDSL equipment
  • RF systems
  • Antennas
  • Base stations
Industrial and Consumer Electronics
  • Power supplies
  • Surge protectors
  • Alarm systems
  • Irrigation systems

Access specifications, certifications, check availability and order parts below

Catalog #DC Sparkover Voltage Tolerance (%)VNom Spark
@ 100V/μs
@ 1kV/μs
Capacitance (Co) (pF)Impulse Discharge Current @8/20μs (kA)ElectrodesFailsafeOperating TemperatureProduct
Partner ECAD ModelsStockSamplesCompare
GTCA38-231M-R10±20%230<=600<=700<1103Without-40° to 90°CProduct SpecificationGTCA38-231M-R10CheckOrder
GTCA38-231M-R10-FT±20%230<=600<=700<1103With-20° to 65°CProduct SpecificationGTCA38-231M-R10-FTCheckOrder
GTCA38-261M-R10±20%260<=700<=800<1103Without-40° to 90°CProduct SpecificationGTCA38-261M-R10CheckOrder
GTCA38-351M-R10±20%350<=900<=1000<1103Without-40° to 90°CProduct SpecificationGTCA38-351M-R10CheckOrder
GTCA38-351M-R10-FS±20%350<=900<=1000<1103With-20° to 65°CProduct SpecificationGTCA38-351M-R10-FSCheckOrder
GTCA38-401M-R10-FS2±20%400<=900<=1000<1103With-20° to 65°CProduct SpecificationGTCA38-401M-R10-FS2CheckOrder
GTCA38-421M-R10±20%420<=900<=1000<1103Without-40° to 90°CProduct SpecificationGTCA38-421M-R10CheckOrder
GTCA38-750M-R10±20%75<=450<=550<1103Without-40° to 90°CProduct SpecificationGTCA38-750M-R10CheckOrder
GTCA38-900M-R10±20%90<=450<=550<1103Without-40° to 90°CProduct SpecificationGTCA38-900M-R10CheckOrder
GTCA38-900M-R20±20%90<=450<=550<1203Without-40° to 90°CProduct SpecificationGTCA38-900M-R20CheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
RF2003-000 GTCA38-231M-R10 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1966-000 GTCA38-231M-R10-FT RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1289-000 GTCA38-261M-R10 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1933-000 GTCA38-351M-R10 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF2047-000 GTCA38-351M-R10-FS RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1368-000 GTCA38-401M-R10-FS2 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1699-000 GTCA38-421M-R10 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1450-000 GTCA38-750M-R10 RoHS No 04/01/2018 PbFree No 04/01/2018 CoC_RoHS10_RF1450-000_-GTCA38-750M-R10-_04-11-2018 No
RF1149-000 GTCA38-900M-R10 RoHS No 02/18/2019 PbFree No 02/18/2019 CoC_RoHS10_RF1149-000_-GTCA38-900M-R10-_9-23-2019 REACH209_Declaration_RF1149-000_-GTCA38-900M-R10-_07-31-2020 No
Does not Contain
RF4214-000 GTCA38-900M-R20 RoHS No 10/16/2017 PbFree No 10/16/2017 CoC_RoHS10_RF4214-000_-GTCA38-900M-R20-_1-4-2019 REACH191_Declaration_RF4214-000_-GTCA38-900M-R20-_1-4-2019 No
Does not Contain
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