Del-Seal CF Vacuum Measurement Ionization Guage Tubes Glass Envelope Gauge

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Vacuum Measurement
Ionization Guage Tubes - Glass Envelope Ionization Gauge Tube

Del-Seal CF

Features
UHV compatible Del-Seal™ CF flange

Vacuum Specifications
Vacuum Range	10^-3 to 2x10^-10 Torr
Maximum Operating Pressure	1x10^-3 Torr
Pumping Speed (Ionic)	0.06 liters/sec - N2 (1 mA)
X-ray Limit	2x10^-10 Torr - N2 (approx.)
Construction Specifications
Envelope	Nonex
Grid	"Non-Sag" Tungsten 0.025" dia.
Filament	Hairpin thoria-coated iridium
Collector	Tungsten, 0.010" dia.
Shield Coating	Platinum, internally connected to filament
Base Leads	Soft Nickel, 0.060" dia.
Collector Lead	Soft Nickel, 0.040" dia.
Internal Volume	220cc (not including tubulation)
Operating Specifications
Collector	0 Volts DC (ground)
Shield	Internally connected to filament
Grid	+150 Volts DC connected to ground
Filament	+30 Volts DC to ground
Filament Volts (AC)	4.0 Volts
Filament Current (AC)	3.5 Amps (1 mA grid current)
Absolute Max. Fil. Volts (AC)	6.0 Volts
Absolute Max. Fil. Current (AC)	6.0 Amps
Absolute Max. Fil. Temperature	1400ºC
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All "In Stock" parts ships same business day as ordered. Lead Time indicates business days. Please Note that cut off time for same day shipment is 1:30 p.m. Pacific Standard Time. Prices and specifications are subject to change without notice. See full terms of sale here.

Drawings download if available are indicated by in the Part Number column. Click on to go to Downloads Page

NOMINAL FLANGE	DESCRIPTION	WT LB.	Part Number	UOM	List Price	Net Price	Lead Time	Qty
1-1/3	.75" TUBE WITH 1-1/3" DEL-SEAL FLANGE	1/2	432023 REF# IGT-075-D	EACH	$196.00	$196.00	15 days
2-3/4	1.00" TUBE WITH 2-3/4" DEL-SEAL FLANGE	1/2	432026 REF# IGT-100-D	EACH	$175.00	$175.00	25 days

Tube Interchange / Cross Reference Table

Several of the MDC tubes will directly interchange with models of various manufacturers as noted in the Cross Reference Table. Exact pin-out dimensions may vary, but the pattern is the same industrywide.

	Replacement for			MDC Reference	MDC Part Number
Description	Granville-Phillips	Perkin-Elmer	Varian	MDC Reference	MDC Part Number
DEL-SEAL, 1-1/3" NOMINAL SIZE	274020	-	-	IGT-075-D	432023
DEL-SEAL, 2-3/4" NOMINAL SIZE	274008	605-7152	571-K2471-303	IGT-100-D	432026
PYREX WITH GRADED SEAL, 3/4" TUBE	274002	-	-	IGT-075-P	432021
PYREX WITH GRADED SEAL, 1" TUBE	274005	-	-	IGT-100-P	432024
KOVAR WITH GRADED SEAL, 3/4" TUBE	274003	605-7000	571-K2471-305	IGT-075-K	432022
KOVAR WITH GRADED SEAL, 1" TUBE	274006	-	571-K2471-302	IGT-100-K	432025

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