SL1026-700

**Gas Discharge Tubes** SL1026 Series 

~~|_|~~ ~~**RoHS** @~~ 

## SL1026 Series 

## ~~**Description**~~ 

## ~~**3 Electrode GDT Graphical Symbol** Lo~~ 

a = TIP b = RING a b e = GROUND (centre electrode) e 

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Additional Information<br>Lo<br>a<br>Datasheet Resources Samples<br>**----- End of picture text -----**<br>


The SL1026 Series is a heavy-duty transient suppresser using Gas Plasma technology. In response to transients that exceed the device's breakover voltage, the device changes from a very high impedance state to a low impedance state to conduct harmful current away from the protected system. The SL1026 is designed to protect electrical and electronic equipment such as communications, control and railway systems. Carefully designed geometry ensures against short circuiting if a failure occurs due to conditions and events beyond the design criteria.  Optional electrical mounting clip (part SL1053 ) is available to aid mounting and connection. 

## ~~**Features**~~ 

- RoHS compliant 

- RoHS compliant • Will protect against • 55 kA surge capability capacitor discharge (single shot) tested with voltage transient 8/20μS pulse as defined waveforms as specified by IEC 61000-4-5 in RIA 12. 

- 40 kA surge capability • Will protect against (repetitive) double exponential voltage transient 

- • Will protect against waveforms as specified 

- Trapezoidal waveforms in IEC 571. 

- as specified in RIA 12. 

## ~~**Applications**~~ 

- Signaling equipment. 

   - Trackside cabinets. 

- Communication • Cell phone base equipment stations 

- • Control gear. 

~~**Electrical Characteristics** Lo~~ DC Voltage 100 V/sec DC Current 1AC Current 1AC Current 1Surge 1,2 Single Max 1Max Single 1150(+) and 150(-) Surge Part Number* Voltage 9 cycles 50Hz 8/20μSec Surge 10/1000μSec MIN MAX 1kV/µs @50-60Hz 1 sec x10 x 10 8/20μSec 10/350μSec (Amps) (kAmps) (Amps) (Amps) (kAmps) (kAmps) SL1026-275 200 350 800 200 10 20 40 8 200 SL1026-400 300 500 900 200 10 20 40 8 200 SL1026-700 560 840 1300 200 10 20 40 8 200 ~~Se~~ NOTES: End of life limits --  DC: 50% of minimum initial DC breakdown voltage limit to 150% of maximum initial DC breakdown voltage limit. 

- --  Impulse: less that 150% of initial impulse breakdown voltage limit. 

1. Total current through center electrode, tested using SL1053B-NL holder 

2. Exceeds capability of SL1053B-NL holder 

© 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/12/17 

**Gas Discharge Tubes** SL1026 Series 

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Voltage vs. Time Characteristic<br>**----- End of picture text -----**<br>


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Max dynamic breakover<br>— 7 voltage<br>See EE<br>ee<br>Hold-over voltage<br>a On-State voltage<br>0  Za 200  400  600  ee 800  1000  1200<br>Time (ns)<br>Electrical Specifcations<br>Insulation<br>> 10GΩ at 100 Volts<br>Resistance<br>bo<br>Capacitance: <=2.5pf, 1MHz 0 Volts Bias<br><150mS, tested at 130 volts according to<br>Holdover Voltage:<br>ITU-T Rec. K.12 & REA PE 80<br>~35 Volts, On State Voltage at 1 Amp<br>Arc Voltage:<br>(Depending on Voltage Type)<br>Glow to Arc<br>~1 Amp<br>Transition Current:<br>> 150 Volts, depending on Voltage<br>Glow Voltage:<br>Type<br>Physical Specifcations<br>Weight: 11g (0.388 oz.)<br>Electrode Base: Nickel Iron Alloy<br>Materials: Electrode Plating: Nickel<br>Body: Ceramic<br>Color coded body<br>SL1026-275: Black/Black<br>Part Marking:<br>SL1026-400: Black/Yellow<br>SL1026-700: Black/Red<br>Storage and<br>Operating  -40°C to +90°C<br>Temperature:<br>(V)<br>Voltage<br>**----- End of picture text -----**<br>


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Product Dimensions<br>SL1026 GDT Series Profile<br>45.0 Max<br>S99  22.0 Ref 4 Ø8.7  Ø9.1<br>Max Max<br>(TE<br>Type 1053 Holder Profile<br>rp? 7<br>i esa Si ;<br>al 7<br>All dimensions in mm<br>Part Numbering System<br>SL L__ILILIEtLI 1026 –<br>|<br>Voltage<br>Packaging<br>**----- End of picture text -----**<br>


GDT devices are provided as bulk pack in poly bag -- 20 pieces per bag and 5 bags per carton. 

**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. 

© 2017 Littelfuse, Inc. Specifications are subject to change without notice. 

Revised: 12/12/17