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SH90
GDT, 5KA, 90V, 2 TERMINAL SMD
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- Manufacturer: LITTELFUSE
- Product type: Gas Discharge Tubes - GDT
- Product Range:SH Series; DC Breakover Voltage:90V; GDT Case Style:2 Terminal SMD; Impulse Discharge Current:5kA; Impulse Sparkover Voltage:700V 27AM6640
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 1.08 € |
| Current stock | 500+ |
| Lead time | 30 days |
Datasheet
GDT **Datasheet** **SH Series** Gas Discharge Tubes **==> picture [71 x 14] intentionally omitted <==** **----- Start of picture text -----**<br> RoHS<br>[1 ® W<br>**----- End of picture text -----**<br> ## **Description** The Littelfuse SH Gas Discharge Tubes (GDT) series provides high levels of protection against fast rising transients caused by lightning disturbances. It has a surge rating of 5kA, 8/20μs. Offered in a Squared Surface Mount package, which helps to make pick and place on PCB process easier. This GDT series is perfectly suited for broadband equipment applications. The GDT’s low off-state capacitance is compatible with high bandwidth applications and this capacitance loading value does not vary if the voltage across the GDT changes. The Littelfuse SH Gas Discharge Tube (GDT) series are specifically designed for protection of electrical, multimedia, and communication equipment against over voltage transients in surface mount assembly applications. ## **Additional Information** **==> picture [198 x 7] intentionally omitted <==** **----- Start of picture text -----**<br> Resources Accessories Samples<br>**----- End of picture text -----**<br> ## **Agency Approvals** |**Agency**|**Agency File Number**| |---|---| |Ww|E128662| **Two Electrode GDT Graphical Symbol** ## **Features** - Excellent response to fast rising transients - GHz working frequency - 5kA, 8/20μs surge capability as defined by IEC 61000-4-5 2nd Edition - UL Recognized ## **Applications** - CATV equipment - Antennas - RS 485 - Telecom Base Station - Power Supply AC Main - G.fast - EV power Charging - Inverter/Variable Frequency Drivers (VFDs) - Offered with squared body package - Non-Radioactive - Ultra Low capacitance (<0.7pF) - Lead-free and RoHS compliant - IEEE 802.3 compliant Ethernet interfaces - Broad Band equipment - xDSL, ADSL, ADSL2, VDSL, and VDSL2 - Medical Electronics - Test Equipment - General Telecom Equipment - Renewable Energy © 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 03/09/21 **1** GDT **Datasheet** **SH Series** Gas Discharge Tubes ## **Electrical Characteristics** |**Part**<br>**Number**<br>SH75|**Component Specifications (at 25°C)**|**Component Specifications (at 25°C)**|**Component Specifications (at 25°C)**|**Component Specifications (at 25°C)**|**Component Specifications (at 25°C)**|**Component Specifications (at 25°C)**|**Component Specifications (at 25°C)**|**Component Specifications (at 25°C)**|**Life Ratings**|**Life Ratings**|**Life Ratings**|**Life Ratings**|**Life Ratings**| |---|---|---|---|---|---|---|---|---|---|---|---|---|---| ||**DC Breakdown**<br>**in Volts**<br>**(@100V/s)**|||**Maximum**<br>**Impulse**<br>**Break-down**<br>**Voltage**||**Maximum**<br>**Impulse**<br>**Discharge**<br>**Current**<br>**(8/20µs)**|**Insulation**<br>**Resistance**|**Capaci-**<br>**tance**<br>**(@1MHz)**|**Impulse**<br>**Discharge**<br>**Current**<br>**(8/20µs)**|**AC**<br>**Dischage**<br>**Current**<br>**(50Hz,**<br>**1sec)**|**AC**<br>**Dischage**<br>**Current**<br>**(9 Cycles**<br>**@50Hz)**|**DC**<br>**Holdover**<br>**Voltage**<br>**(<150ms)***|**Impulse**<br>**Life**<br>**(10/1000µs)**<br>**(100A)**| ||**MIN**<br>60|**TYP**<br>75|**MAX**<br>90|**@100V/**<br>**µs**<br>600|**1000V/µs**<br>700|**1 Time**<br>6kA|**MIN**<br>1GΩ<br>@50V|**MAX**<br>0.7pf|**MAX**<br>10 Shots<br>@<br>(5kA)<br>1 Shot at<br>6kA**|**MIN**<br>5A|**MIN**<br>15A|52V|**MIN**<br>300<br>Shots| |SH90|72|90|108|600|700|||||||52V|| |SH145|116|145|174|600|700||1GΩ<br>@100V|||||52V|| |SH230|186|230|276|600|700|||||||80V|| |SH250|200|250|300|600|700|||||||135V|| |SH300|240|300|360|650|800|||||||135V|| |SH350|280|350|420|750|900|||||||135V|| |SH400|360|400|480|850|1000|||||||135V|| |SH470|376|470|564|900|1100||1GΩ<br>@250V|||||135V|| |SH600|480|600|720|1000|1200|||||||135V|| **Note:** - Reference REA PE-80, 0.2A, tested to ITU-T Rec K.12 and REA PE 80 <150 ms. - ** DC spark-over may exceed ± 25% after discharge, but will continue to protect without venting ## **Product Characteristics** ## **Typical Insertion Loss** **==> picture [225 x 42] intentionally omitted <==** **----- Start of picture text -----**<br> Device Tin Plated 3 -15 Microns<br>Materials<br>Construction: Ceramic Insulator<br>Storage and Operational<br>-40 to +90°C<br>Temperature<br>**----- End of picture text -----**<br> ## **Voltage Vs. Time Characteristic** **==> picture [240 x 179] intentionally omitted <==** **----- Start of picture text -----**<br> Max dynamic<br>800 breakover voltage<br>600<br>400<br>Hold over voltage<br>200<br>On-state voltage<br>0<br>0 200 400 600 800 1000 1200<br>Time (ns)<br>Note: Tested per 1kV/µs waveform<br>Voltage (V)<br>**----- End of picture text -----**<br> |@1.0GHz = 0.08dB|@1.0GHz = 0.08dB|@1.0GHz = 0.08dB| |---|---|---| |@1.4GHz = 0.16dB|@1.4GHz = 0.16dB|@1.4GHz = 0.16dB| |@1.8GHz = 0.26dB|@1.8GHz = 0.26dB|@1.8GHz = 0.26dB| |@2.0GHz = 0.33dB|@2.0GHz = 0.33dB|@2.0GHz = 0.33dB| |@2.4GHz = 0.47dB|@2.4GHz = 0.47dB|@2.4GHz = 0.47dB| |@2.8GHz = 0.59dB|@2.8GHz = 0.59dB|@2.8GHz = 0.59dB| |@3.1GHz = 0.70dB|@3.1GHz = 0.70dB|@3.1GHz = 0.70dB| |@3.5GHz = 0.89dB|@3.5GHz = 0.89dB|@3.5GHz = 0.89dB| |@4.0GHz = 1.24dB|@4.0GHz = 1.24dB|@4.0GHz = 1.24dB| **Note:** Insertion data for customer reference only, application testing needed for verification. © 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 03/09/21 **2** GDT **Datasheet** **SH Series** Gas Discharge Tubes ## **Soldering Parameters - Reflow Soldering (Surface Mount Devices)** **==> picture [488 x 190] intentionally omitted <==** **----- Start of picture text -----**<br> |||||||||||||| |---|---|---|---|---|---|---|---|---|---|---|---|---| |Reflow Condition|Pb – Free assembly| |t|P| |- Temperature Min (Ts(min))|150°C|T|P|Critical Zone| |Pre Heat|- Temperature Max (Ts(max))|200°C|Ramp-up|TL to TP| |Average ramp up rate (Liquidus Temp (T- Time (Min to Max) (ts)|L) to|60 – 180 secs3°C/second max|T|S(max)|T|L|||!|t|L|\||| |peak| |Ramp-down| |TReflowS(max) to TL - Ramp-up Rate- Temperature (TL) (Liquidus)|5°C/second max217°C|T|S(min)|i|t|zz|Preheat|S|\| |- Temperature (tL)|60 – 150 seconds| |Peak Temperature (TP)|260|[+0/-5]|°C|25| |<|time to peak temperature|>|Time|—| |Time within 5°C of actual peak Temperature|(t 25ºC to peak)| |10 – 30 seconds| |(tp)| |Ramp-down Rate|6°C/second max| |Time 25°C to peak Temperature (TP)|8 minutes Max.| |Do not exceed|260°C| **----- End of picture text -----**<br> ## **Product Dimensions** ## **Product Marking** **==> picture [94 x 7] intentionally omitted <==** **----- Start of picture text -----**<br> Dimensions in millimeters<br>**----- End of picture text -----**<br> **==> picture [140 x 181] intentionally omitted <==** **----- Start of picture text -----**<br> TOP VIEW PROFILE VIEW<br>Lo LC<br>0.5 ± 0.2<br>4.8 ± 0.2<br>OO _L<br>4.2 ± 0.3<br>TOP VIEW<br>[<br>0.8<br>6.0<br>H d<br>fo 3.7<br>Recommended Soldering Pad Layout<br>5.0 ± 0.2 5.0 ± 0.2<br>**----- End of picture text -----**<br> **==> picture [156 x 60] intentionally omitted <==** **----- Start of picture text -----**<br> A 3 A<br>Type Code Production Year Production Month<br>Code (Laser Digit) Code<br>**----- End of picture text -----**<br> **==> picture [209 x 162] intentionally omitted <==** **----- Start of picture text -----**<br> ||||| |---|---|---|---| |Type Code|Month Code| |A|SH75|A|January| |B|SH90|B|February| |S|SH145|C|March| |D|SH230|D|April| |R|SH250|E|May| |E|SH300|F|June| |G|SH350|G|July| |I|SH400|H|August| |P|SH470|I|September| |V|SH600|J|October| |K|November| |L|December| **----- End of picture text -----**<br> © 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 03/09/21 **3** GDT **Datasheet** **SH Series** Gas Discharge Tubes ## **Part Numbering System and Ordering Information** ## **SH XX** **Series** Square GDT **Breakdown Voltage** 75 = 75V 90 = 90V 145 = 145V 230 = 230V 250 = 250V 300 = 300V 350 = 350V 400 = 400V 470 = 470V 600 = 600V ## **Taping and Reel Specifications** ## **Taping** ## Unit = mm |Item|Spec|Item|Spec| |---|---|---|---| |P|12.0±0.1|D|Ø1.55±0.05| |P0<br>A|4.0±0.1<br>5.4±0.1|W<br>K0|16.0±0.3<br>5.4±0.1| |A<br>B|5.4±0.1<br>4.6±0.1|K0<br>t|5.4±0.1<br>0.5±0.05| **==> picture [242 x 175] intentionally omitted <==** **----- Start of picture text -----**<br> D P0<br>~~ |<br>E<br>B<br>F W<br>Fooe sorcery A<br>t<br>P K0<br>ne 330±4.0<br>>1.5<br>Packaging Quantity:<br>900 pcs per reel (13”)<br>100 Typ.<br>1 reel per inner box<br>10 inner boxes per carton<br>9,000 pcs per full carton At<br>18 Typ.<br>**----- End of picture text -----**<br> **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 may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics. © 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 03/09/21 **4**
Updated at June 3, 2026
Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.
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