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.

Model 4391

BNC Resistor Attenuator

USA: Sales: 800-490-2361

Fax: 425-446-5844

Europe: 31-(0) 40 2675 150

International: 425-446-5500

Where to Buy: www.pomonaelectronics.com

Rev: 100

D1094169

Page 1 of 1

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

ASTM B196 and B197 Cond. HT

Outer Contact: Beryllium Copper, per ASTM B196

and B197 Cond. HT

Dielectric: Teflon per ASTM D1457

Gasket/Seals: Silicone rubber per ZZ-R-765, Class

11, Grade 50

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”

RATINGS:

Operating Temperature: +102º C (+216º F) Max.

Frequency Range: DC to 500 MHz

Resistance Tolerance ±1%

Power: 2W @ 25º C Max.

ORDERING INFORMATION: Model 4391

See table above.