CG32.5LTR

GDT **Datasheet** 

**AC and CG3 Series** Gas Discharge Tubes 

## **RoHS** | | @® SAY 

## **Description** 

Littelfuse AC series two-electrode line protectors provide a high degree of surge protection in AC line applications.   The two models, AC120 and AC240 are designed for use with 120VAC and 240VAC lines respectively. They are able to extinguish AC followon currents of at least 200A. 

Littelfuse CG3 two electrode high voltage (1.0 - 7.5 KV) devices are designed for surge protection and high isolation applications, and for applications for which bias voltages or signal levels of several hundred volts are normally present. 

## **Features** 

## **Additional Information** 

- Rugged ceramic-metal construction 

- Low capacitance (<1.5 pF) 

## **Applications** 

- Available in tape-and-reel packaging 

- Available with or without leads 

## **AC Series:** 

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Resources Accessories Samples<br>AC Series AC Series AC Series<br>: “oeSO} &<br>Resources Accessories Samples<br>CG3 Series CG3 Series CG3 Series<br>**----- End of picture text -----**<br>


## **Agency Approvals** 

- Long branch circuits (AC wall outlet) 

   - Test equipment 

   - Submersible pumps 

- Short branch circuits (at breaker box, computer, etc) 

   - Medical electronics 

- Power supplies 

## **CG3 Series:** 

- CRT terminals 

   - Power supplies 

- CATV equipment 

   - Medical electronics 

- Antennas 

## **2 Electrode GDT Graphical Symbol** 

|**Agency**|**Agency file number**|
|---|---|
||E320116*|



***Note:** CG3 7.5 product UL approval is currently pending 

© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 03/17/21 

**1** 

GDT **Datasheet** 

**AC and CG3 Series** Gas Discharge Tubes 

## **Electrical Characteristics** 

|**Part**<br>**Number**<br>AC1201|**Device Dimension Type**<br>A|**Device Specifications (at 25°C)**|**Device Specifications (at 25°C)**|**Device Specifications (at 25°C)**|**Device Specifications (at 25°C)**|**Device Specifications (at 25°C)**|**Device Specifications (at 25°C)**|**Device Specifications (at 25°C)**|**Device Specifications (at 25°C)**|**Life Ratings**|**Life Ratings**|**Life Ratings**|**Life Ratings**|**Life Ratings**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||**DC Breakdown**<br>**in Volts**<br>**(@100V/s)**|||**Impulse**<br>**Break-**<br>**down**<br>**in Volts**<br>**(@100V/**<br>**µs)**|**Impulse**<br>**Break-**<br>**down In**<br>**Volts**<br>**(@1 Kv/**<br>**µsec)**|**Insulation**<br>**Resistance**|**Capaci-**<br>**tance**<br>**(@1MHz)**|**Arc**<br>**Voltage**<br>**(on state**<br>**Voltage)**<br>**@1Amp**<br>**Min**|**Max Follow**<br>**On Current3**|**Max Follow**<br>**Nominal**<br>**AC**<br>**Discharge**<br>**Current**<br>**(10x1sec**<br>**@50-60Hz)**|**AC**<br>**Discharge**<br>**Current**<br>**(1 x 50Hz**<br>**9 cycles)**|**Nominal**<br>**Impulse**<br>**Discharge**<br>**Current4**<br>**(@8/20µs)**|**Max**<br>**Surge**<br>**Current5**<br>**(@8/20µs)**|
|||**MIN**<br>230|**TYP**<br>285|**MAX**<br>340|**MAX**<br>500|550|**MIN**<br>10 GΩ<br>(at 100V)|**MAX**<br><1.5 pf|**TYP**<br>~ 25 V|200 Amps|5 A|65 A|10 shots<br>5kA|1 shot<br>10kA|
|AC2401|A|480|600|720|1100|1200|||||||||
|CG3 1.01|A|800|1000|1200|1400|1500|10 GΩ<br>(at 100V)|<1.5 pf|~ 25 V|200 Amps|N/A|N/A|10 shots<br>5kA|1 shot<br>10kA|
|CG3 1.11|A|880|1100|1320|1600|1700|||||||||
|CG3 1.21|A|960|1200|1440|1700|1800|||||||||
|CG3 1.31|A|1040|1300|1560|1800|1900|||||||||
|CG3 1.51|A|1200|1500|1800|1800|2000|||||||||
|CG3 2.01|A|1600|2000|2400|2500|2750|||||||||
|CG3 2.51|A|2000|2500|3000|3200|3500|||||||||
|CG3 2.71|A|2160|2700|3240|3600|4000|||||||||
|CG3 3.01|A|2400|3000|3600|4000|4200|||||||||
|CG3 3.31|A|2640|3300|3960|4600|4700|||||||||
|CG3 4.02|B|3200|4000|4800|5800|6000|||||||||
|CG3 4.52|B|3600|4500|5400|6150|6500|||||||||
|CG3 5.02|B|4000|5000|6000|7500|8000|||||||||
|CG3 6.22,7|B|4960|6200|7440|8100|9500|||||||||
|CG3 6.52,7|B|5200|6500|7800|9500|10000|||||||||
|CG3 7.52,6,7|B|6000|7500|9000|10000|10600|||||||||



## **NOTES:** 

**1.** Refer to Production Dimensions section, outline A devices 

**2.** Refer to Production Dimensions section, outline B devices 

## **Product Characteristics** 

**3.** Tested to UL1449 -- 120V r.ms. for AC120, 230V r.m.s. all others. Conducted with suitable MOV connected in series. 

**4.** 5x(+) and 5x(-) applications 5kA @ 8/20µs 

**5.** 1 application 10kA @ 8/20µs 

**6.** CG3 7.5 product UL approval is currently pending 

**7.** When ordering this item, use suffix code D004 when entering the part number. The older product version without D004 suffix code has been discontinued. 

- Refer to Part Numbering System section for additional information. 

|**Materials**|**Core Outline A & B items:**<br>Device: Tin Plated 17.5±12.5 Microns<br>**Axial Outline A & B items:**<br>Device & Wire: Tin Plated 17.5±12.5 Microns|
|---|---|
|**Product Marking**|LF Logo, Voltage and date code;<br>Black ink positive print|
|**Glow to arc**<br>**transition current**|< 0.5Amps|
|**Glow Voltage**|~ 140 Volts|
|**Storage and**<br>**Operational**<br>**Temperature**|-40 to +90|



© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 03/17/21 

**2** 

GDT **Datasheet** 

**AC and CG3 Series** Gas Discharge Tubes 

## **Soldering Parameters - Reflow Soldering (Surface Mount Devices)** 

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||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|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|
|- Time (Min to Max) (ts)|60 – 180 secs|T|S(max)|T|L|t|L|
|Average ramp up rate (Liquidus Temp (TL) to peak|3°C/second max|
|Ramp-down|
|TReflowS(max) to TL - Ramp-up Rate- Temperature (TL) (Liquidus)|5°C/second max217°C|T|S(min)|>|t|—_|Preheat|S|||\|
|- Temperature (tL)|60 – 150 seconds|
|Peak Temperature (TP)|260|[+0/-5]|°C|25|
|time to peak temperature|
|Time within 5°C of actual peak Temperature (tp)|10 – 30 seconds|"|(t 25ºC to peak)|=|Time|
|Ramp-down Rate|6°C/second max|
|Time 25°C to peak Temperature (TP)|8 minutes Max.|
|Do not exceed|260°C|

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## **Soldering Parameters - Wave Soldering (Thru-Hole Devices)** 

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300<br>280<br>260<br>240<br>220<br>200<br>180<br>160<br>140<br>120<br>100<br>80<br>60<br>40<br>20<br>0<br>Time (Seconds)<br>Preheat Time Cooling Time<br>Dwell Time<br>Temperature (°C) - Measured on bottom side of board 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240<br>**----- End of picture text -----**<br>


## **Recommended Process Parameters:** 

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|||
|---|---|
|Wave Parameter|Lead-Free Recommendation|
|Preheat:|
|(Depends on Flux Activation Temperature)|(Typical Industry Recommendation)|
|Temperature Minimum:|100° C|
|Temperature Maximum:|150° C|
|Preheat Time:|60-180 seconds|
|Solder Pot Temperature:|280° C Maximum|
|Solder Dwell Time:|2-5 seconds|

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## **Soldering Parameters - Hand Soldering** 

Solder Iron Temperature:  350° C +/-  5°C Heating Time:  5 seconds max. 

© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 03/17/21 

**3** 

GDT **Datasheet** 

## **AC and CG3 Series** Gas Discharge Tubes 

## **Device Dimensions** 

## **Part Numbering System and Ordering Information** 

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Axial PROFILE VIEW TOP VIEW<br> 0.80±0.05<br>[0.031±0.002]<br>A “Lo e [0.314 8.0 ± 0.2  ± 0.008]<br>4@]<br>-——+| 6.0 ± 0.2 a e<br>[0.236 ± 0.008]<br>62 ± 2<br>[2.441 ± 0.079]<br>7.9 ± 0.3<br>[0.311 ± 0.012]<br>[—_ _<br>8.0 ± 0.2<br>B [0.314 ± 0.008]<br> 0.80±0.05<br>[0.031±0.002]<br>Core sO PROFILE VIEW TOP VIEW<br>A [0.314 8.0 ± 0.2  ± 0.008]<br>©.<br>— 6.0 ± 0.2 O O<br>[0.236 ± 0.008]<br>B [0.314 8.0 ± 0.2  ± 0.008]<br>S ]<br>7.9 ± 0.3<br>[| [0.311 ± 0.012]<br>**----- End of picture text -----**<br>


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AC XXX XXX CG3 X.X XXX D004<br>Series<br>Series CG3<br>Breakdown Voltage<br>AC Line Voltage 1.0 = 1000V1.1 = 1100V 3.0 = 3000V3.3 = 3300V<br>120 = 120V J J 1.2 = 1200V ZI 4.0 = 4000V<br>240 = 240V 1.3 = 1300V 4.5 = 4500V<br>1.5 = 1500V 5.0 = 5000V<br>2.0 = 2000V 6.2 = 6200V<br>Lead / Packaging Option 7] 2.5 = 2500V 6.5 = 6500V<br>        = Core (no leads) / Bulk pack, 400 pcs per bag 2.7 = 2700V 7.5 = 7500V<br>  L     = Leaded / Bulk pack, 50 pcs per tray Lead / Packaging Option<br>LTR  = Leaded / Tape & Reel, 500 pcs per reel         = Core (no leads) / Bulk pack, 400 pcs per bag<br>  L     = Leaded / Bulk pack, 50 pcs per tray<br>LTR  = Leaded / Tape & Reel, 500 pcs per reel<br>Special Suffix Code<br>Enter this D004 special suffix code when placing orders<br>for CG36.2, CG36.5 and CG37.5 only<br>**----- End of picture text -----**<br>


## **Packaging Dimensions** 

## **For ‘LTR’ Option Code Axial Lead Items** 

**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. 03/17/21 

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