Model 4391
BNC Resistor Attenuator
Resistor: Non-inductive film resistor
Finish: Body and Fittings: Tarnish resistant
Center Contact: Male – Gold plated
Outer Contact: Tarnish resistant
Marking: “Pomona 4391-50 2W”
“50 Ohm Attenuator”
FEATURES:
• Use to add series resistance to coaxial lines
with BNC connectors.
MATERIAL:
Body and Fittings: Brass, Alloy 360, ½ Hard
Center Contact: Male – Brass, Alloy 360, ½ Hard
Female – Beryllium Copper per
RATINGS:
Operating Temperature: +102º C (+216º F) Max.
Frequency Range: DC to 500 MHz
Resistance Tolerance 1%
ASTM B196 and B197 Cond. HT
Outer Contact: Beryllium Copper, per ASTM B196
and B197 Cond. HT
Power: 2W @ 25º C Max.
ORDERING INFORMATION: Model 4391
See table above.
Dielectric: Teflon per ASTM D1457
Gasket/Seals: Silicone rubber per ZZ-R-765, Class
11, Grade 50
All dimensions are in inches. Tolerances (except noted): .xx = .02” (,51 mm), .xxx = .005” (,127 mm).
All specifications are to the latest revisions. Specifications are subject to change without notice.
Registered trademarks are the property of their respective companies.
USA: Sales: 800-490-2361
Europe: 31-(0) 40 2675 150
Fax: 425-446-5844
Technical Support: technicalsupport@pomonatest.com
International: 425-446-5500
Where to Buy: www.pomonaelectronics.com
Rev: 100
D1094169
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