General Specifications

Flanged Terminations

800 Watts, 50

Model RFP-800-50T

Resistive Element:

Thick film

Substrate:

Beryllium oxide ceramic

Cover:

Alumina ceramic

Mounting Flange:

Copper, nickel plated per
QQ-N-290

Lead(s):

99.99% pure silver (.005" thk)

Outline Drawing

.750

.400

.075

.950

(4 PLACES)

.175

.450

(MAX)

.125

.22

.250

.166 DIA. THRU.

.50

.27

1.04

1.000

1.550

1.900

RFP

800-50

Notes: Tolerance is ą.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

Resistance Value:

50 ohms, ą5%

Frequency Range:

DC - 500 MHz

Power:

800 Watts

V.S.W.R.:

1.50:1

Flanged T

rminations

Features

ˇ DC - 500 MHz

ˇ 800 Watts

ˇ BeO Ceramic

ˇ Welded Silver Leads

ˇ Non-Nichrome Resistive

Element

ˇ Low VSWR

ˇ 100% Tested

Sales Desk USA: Voice: (800) 544-2414 Fax: (315) 432-9121

Sales Desk Europe: Voice: (+44) 23 92 232392 Fax: (+44) 23 92 251369

VER. 12/5/01

Flanged T

rminations

Model RFP-800-50T

Typical Performance

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

MIN.

.025

(2 PLACES)

SUGGESTED STRESS RELIEF METHODS

BOARD LOWER
THAN LEAD.

WITH LEAD.

BOARD EVEN

SCALE:

1. Make sure that the devices are mounted on flat surfaces

(.001" under the device) to optimize the heat transfer.

2. Drill & tap the heatsink for the appropriate thread size to be

used.

3. Coat heatsink with a minimum amount of high quality

silicone grease (.001" max. thickness).

4. Position device on mounting surface and secure using

socket head screws, flat & split washers. Torque screws to
the appropriate value. Make sure that the device is flat
against the heatsink. (Care should be taken to avoid
upward pressure of the leads towards the lid).

5. Solder leads in place using an SN63 type solder with a

controlled temperature iron (210°C).

SCALE:

BOARD HIGHER
THAN LEAD.

THAN LEAD.

BOARD LOWER

NOT RECOMMENDED APPLICATION

% OF RATED POWER

150

125

100

CASE TEMPERATURE -- °C

Part Number RFP-800-50T