General Specifications
Flangeless Attenuators
40 Watts
Model RFP-40-XXAPP
Resistive Element: Thick film
Substrate: Beryllium oxide ceramic
Cover: Alumina ceramic
Lead(s): 99.99% pure silver (.005” thk)
Outline Drawing
TYP.
.050
.250
.125
.250 MAX.
.042
.070
Notes: Tolerance is ±.010, unless otherwise specified. Operating
temperature is -55°C to +150°C (see chart). Designed to meet or
exceed applicable portions of MIL-E-5400. All dimensions are in
inches. Lead length 0.15” minimum.
Specifications subject to change without notice.
Electrical Specifications
Attenuation Value: 1, 2, 3, 4, 5, 6, 9, 10, 20 or
30 dB
Frequency Range: DC - 3.0 GHz
Power: 40 Watts
Flangeless Attenuators
Features
•DC - 3.0 GHz
•40 Watts
•BeO Ceramic
•Welded Silver Leads
•Non-Nichrome Resistive
Element
•Low VSWR
•100% Tested
1
Sales Desk USA: Voice: (800) 544-2414 Fax: (315) 432-9121
Sales Desk Europe: Voice: (+44) 23 92 232392 Fax: (+44) 23 92 251369
Note: XX denotes attenuation value.
RFP
40-XX
APP
VER.12/4/01
Flangeless Attenuators
Model RFP-40-XXAPP
2
Sales Desk USA: Voice: (800) 544-2414 Fax: (315) 432-9121
Sales Desk Europe: Voice: (+44) 23 92 232392 Fax: (+44) 23 92 251369
Power Derating Suggested Mounting Procedures
1. Make sure that the devices are mounted on flat surfaces
(.001” under the device) to optimize the heat transfer.
2. Position device on mounting surface and solder in place
using an indalloy type or an SN63 type solder.
3. Solder leads in place using an SN63 type solder with a
controlled temperature iron (210°C).
Specifications
PART NUMBER ATTENUATION (dB) TOL. (+/-dB) POWER (WATTS) VSWR FREQ. (GHz)
RFP-40-1APP 1 0.50 40 1.20:1 3.0
RFP-40-2APP 2 0.50 40 1.20:1 3.0
RFP-40-3APP 3 0.50 40 1.20:1 3.0
RFP-40-4APP 4 0.50 40 1.20:1 3.0
RFP-40-5APP 5 0.50 40 1.20:1 3.0
RFP-40-6APP 6 0.50 40 1.20:1 3.0
RFP-40-9APP 9 0.75 40 1.35:1 3.0
RFP-40-10APP 10 0.75 40 1.35:1 3.0
RFP-40-20APP 20 0.50 40 1.20:1 3.0
RFP-40-30APP 30 1.00 40 1.20:1 3.0
CASE TEMPERATURE — °C
% OF RATED POWER
150125100755025
100
75
25
50
0
(2 PLACES)
SUGGESTED STRESS RELIEF METHODS
THAN LEAD.
BOARD LOWER
.025
NOT RECOMMENDED APPLICATION
SCALE:
BOARD EVEN
WITH LEAD.
SCALE:
THAN LEAD.
BOARD LOWER
MIN.
THAN LEAD.
BOARD HIGHER
