VIS800

Gas Discharge Tube (GDT) Products VIS Series RoHS VIS Series Description The VIS series is a two-terminal, bi-directional, voltage triggered switch, specifically for ignition circuits used in high pressure HID lighting. The gas plasma trigger technology offers very fast switch speeds with improved di/dt values compared to similar function silicon based devices. Switching voltages are fixed depending on the part number selected. Features t
3P)4
DPNQMJBOU t
$FSBNJD
DIBNCFS
GPS
ultimate reliability. t
7FSZ
IJHI
TXJUDI
TQFFE
when switch voltage acheived. High di/dt Schematic Symbol Device Series Ratings: allows for optimum performance of ignition transformers. t
5BQF
BOE
SFFM
UP
&*"
481-1 Applications Max Load Current 
N" Max Switching Frequency 25Hz - VIS 230 200Hz - VIS 400 to VIS 800 Operating Temperature TOP ¡$
UP
¡$ Storage Temperature TSTG ¡$
UP
¡$ Insulation Resistance 100 MΩ Capacitance 1.5 pF t
4XJUDIJOH
TUPSFE
electrical energy (such as capacitive discharge) at predetermined voltages. t
*O
HBTGVFM
JHOJUJPO
systems and similar circuits Device Specifications Discharge Peak Current Switching Operations1 (Electrical Life) Amps 300 VIS 400 500 100,000 VIS 600 1000 30,000 VIS 800 400 200,000 704-896 Part Number VIS 230 Initial Break Down Voltage2 Initial Voltage, First Ignition Value2 Electrical Life Breakdown Voltage Values Electrical Life First Ignition Values3 # of cycles typ Volts 2,000,000 200-255 Volts Volts Volts 280 200-280 280 350-460 460 340-460 500 528-627 720 510-690 750 950 680-920 1000 Notes: 1. Number of switching operations depends on peak surge current, operating frequency and ambient temperature. 3FGFS
UP
i&MFDUSJDBM
-JGF
5JNF

5FTU
$JSDVJUTw
TFDUJPO
PG
UIJT
EBUB
TIFFU
GPS
BEEJUJPOBM
EFUBJMT 2. Measured at 100 volts per second. 3. Measured after 24 hours of darkness. ©2011 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com for current information. Customer should verify actual device performance in their specific applications. 53 Revised: December 18, 2011 VIS Series Gas Discharge Tube (GDT) Products VIS Series Electrical Life Time - Test Circuits VIS 230 Life Test Circuit VIS 400 Life Test Circuit 15 KΩ 10 KΩ 10 μH 0.5 μH 230 VAC V V 500 VDC 2.2 μF 680 nF VIS 230 VIS 400 2,000,000 operations 10 - 25Hz Testing Temperature 25ºC 100,000 operations 1 sec. on, 10 sec. off Testing Temperature 25ºC VIS 600 Life Test Circuit VIS 800 Life Test Circuit 13 KΩ 68 KΩ 0.1 μH 0.5 μH 750 VDC V V 1000 VDC 470 nF 100 nF VIS 600 VIS 800 30,000 operations 1 sec. on, 10 sec. off Testing Temperature 25ºC 200,000 operations 1 sec. on, 10 sec. off Testing Temperature 25ºC Soldering Parameters - Wave Soldering (Thru-Hole Devices) Recommended Process Parameters: 280 Wave Parameter 260 240 Lead-Free Recommendation Preheat: 220 %FQFOET
PO
'MVY
"DUJWBUJPO
5FNQFSBUVSF 200 180 160 140 5ZQJDBM
*OEVTUSZ
3FDPNNFOEBUJPO Temperature Minimum: 100° $ Temperature Maximum: Preheat Time: 150° $ 60-180 seconds 120 100 Solder Pot Temperature: 280° $
.BYJNVN Solder Dwell Time: 2-5 seconds 80 60 40 240 230 220 210 200 190 180 170 160 150 140 130 120 110 90 100 80 70 60 50 40 20 0 0 30 20 10 Temperature (°C) - Measured on bottom side of board 300 Time (Seconds) Cooling Time Preheat Time Dwell Time Soldering Parameters - Hand Soldering 4PMEFS
*SPO
5FNQFSBUVSF

¡
$


¡$ Heating Time: 5 seconds max. VIS Series 54 Revised: December 18, 2011 ©2011 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com for current information. Customer should verify actual device performance in their specific applications. Gas Discharge Tube (GDT) Products VIS Series Packaging Dimensions