Flangeless Terminations
50
Alumina Terminations
Outline Drawing
Alumina Flangeless T
e
rminations
Features
DC - 6.0 GHz
20-40 Watts
Low Cost
Alumina Ceramic
Non-Nichrome Resistive
Element
100% Tested
4.8.7
Sales Desk USA: Voice: (800) 544-2414 Fax: (315) 432-9121
Sales Desk Europe: Voice: (+44) 23 92 232392 Fax: (+44) 23 92 251369
General Specifications
Dimensions
Note: See table for dimensions.
PRELIMINAR
PRELIMINAR
Y
Y
PART NUMBER
A
B
C
D
RFP-20A50T
0.100
0.200
0.025
0.025
RFP-30A50TPP
0.250
0.250
0.100
0.040
RFP-40A50TEN
0.250
0.375
0.100
0.040
RFP-40A50TB
0.375
0.250
0.162
0.040
RFP-40A50TD
0.375
0.375
0.162
0.040
Notes: Tolerance is .010, unless otherwise specified. Operating
temperature is -55C to +125C (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.
Resistive Element:
Thick film
Substrate:
Alumina ceramic
Lead(s):
99.99% pure silver (.005" thk)
Resistance Value:
50 ohm, 2%
Alumina Flangeless T
e
rminations
Alumina Terminations
4.8.8
Sales Desk USA: Voice: (800) 544-2414 Fax: (315) 432-9121
Sales Desk Europe: Voice: (+44) 23 92 232392 Fax: (+44) 23 92 251369
Typical Performance
PART NUMBER
VALUE (OHM)
POWER (WATTS)
MAX VSWR
FREQ. (GHz)
RFP-20A50T
50 20
1.25:1
6.0
RFP-30A50TPP
50 30
1.25:1
3.0
RFP-40A50TEN
50 40
1.25:1
3.0
RFP-40A50TB
50 40
1.20:1
2.5
RFP-40A50TD
50 40
1.20:1
2.5
Suggested Mounting Procedures
BOARD HIGHER
THAN LEAD.
BOARD LOWER
THAN LEAD.
SCALE:
NOT RECOMMENDED APPLICATION
PRELIMINAR
PRELIMINAR
Y
Y
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 (210C).
MIN.
SCALE:
WITH LEAD.
BOARD EVEN
.025
BOARD LOWER
THAN LEAD.
SUGGESTED STRESS RELIEF METHODS
(2 PLACES)
100
125
100
75
50
25
50
0
25
CASE TEMPERATURE --
C
75
% OF RATED POWER
Power Derating
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