GTCR38 Series - Medium to High Surge GDT, 3 Terminal, 8 mm, Radial Leaded

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Disclaimer Notice

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 Temp (Deg C)Packaging
Partner ECAD ModelsStockSamplesCompare
GTCR38-151M-R10±20%150<=500<=600<1103Without-40 – 90Tray/Box|TrayProduct SpecificationGTCR38-151M-R10CheckOrder
GTCR38-251M-R10±20%250<=600<=700<1103Without-40 – 90Tray/BoxProduct SpecificationGTCR38-251M-R10CheckOrder
GTCR38-251M-R10-FS±20%250<=600<=700<1103With-20 – 65Tray/BoxProduct SpecificationGTCR38-251M-R10-FSCheckOrder
GTCR38-261M-R10-FS2±20%260<=700<=800<1103With-20 – 65Tray|Tray/BoxProduct SpecificationGTCR38-261M-R10-FS2CheckOrder
GTCR38-351M-R20±20%350<=900<=1000<1203Without-40 – 90Tray/Box|TrayProduct SpecificationGTCR38-351M-R20CheckOrder
GTCR38-401M-R10±20%400<=900<=1000<1103Without-40 – 90Tray/BoxProduct SpecificationGTCR38-401M-R10CheckOrder
GTCR38-471M-R10±20%470<=1050<=1150<1103Without-40 – 90Tray/BoxProduct SpecificationGTCR38-471M-R10CheckOrder
GTCR38-501M-R10±20%500<=1100<=1200<1103Without-40 – 90Tray/BoxProduct SpecificationGTCR38-501M-R10CheckOrder
GTCR38-601M-R10-FS±20%600<=1300<=1400<1103With-20 – 65Tray/BoxProduct SpecificationGTCR38-601M-R10-FSCheckOrder
GTCR38-601M-R20±20%600<=1300<=1400<1203Without-40 – 90Tray|Tray/BoxProduct SpecificationGTCR38-601M-R20CheckOrder
GTCR38-900M-R10±20%90<=450<=550<1103Without-40 – 90Tray/Box|TrayProduct SpecificationGTCR38-900M-R10CheckOrder
GTCR38-900M-R10-FS±20%90<=450<=550<1103Without-20 – 65Tray/BoxProduct SpecificationGTCR38-900M-R10-FSCheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
RF1894-000 GTCR38-151M-R10 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1930-000 GTCR38-251M-R10 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF2025-000 GTCR38-251M-R10-FS RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF4088-000 GTCR38-261M-R10-FS2 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1906-000 GTCR38-351M-R20 RoHS No 11/15/2007 PbFree No 11/15/2007 CoC_RoHS10_RF1906-000_-GTCR38-351M-R20-_08-09-2018 REACH191_Declaration_RF1906-000_-GTCR38-351M-R20-_08-09-2018 No
Does not Contain
RF2109-000 GTCR38-401M-R10 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1925-000 GTCR38-471M-R10 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1859-000 GTCR38-501M-R10 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1868-000 GTCR38-601M-R10-FS RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF3826-000 GTCR38-601M-R20 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1994-000 GTCR38-900M-R10 RoHS No 02/18/2019 PbFree No 02/18/2019 No
RF1910-000 GTCR38-900M-R10-FS RoHS No 02/18/2019 PbFree No 02/18/2019 No
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