Available on Tape
and Reel For Pick and
Place Manufacturing.
USA/Canada:
Toll Free:
Europe:
(315) 432-8909
(800) 544-2414
+44 2392-232392
Model
RFP
-
400
-
XXXR
-
S
Features:
• DC – 500 MHz
• 400 Watts
• BeO Ceramic
• Non-Nichrome Resistive
Element
• Welded Silver Leads
• 100% Tested
Flanged Resistors
400 Watts
General Specifications
Resistive Element Thick film
Substrate Beryllium oxide ceramic
Cover Alumina ceramic
Mounting flange Copper, nickel plated per QQ-N-290
Leads 99% pure silver (.005” thick)
Electrical Specifications
Resistance Range: See Chart
Frequency Range; DC – 0.50 GHz
Power: 400 Watts
Capacitance: See Chart
Tolerance is ±0.010”, unless otherwise specified. Designed to meet of exceed
applicable portions of MIL-E-5400. Operating temperature is -55ºC to 155ºC (see
chart for derating temperatures).
All dimensions in inches.
Specifications subject to change with out notice.
Outline Drawing
400-XXXR-S (097) Rev C
USA/Canada:
Toll Free:
Europe:
(315) 432-8909
(800) 544-2414
+44 2392-232392
Available on Tape and
Reel For Pick and Place
Manufacturing.
Model
RFP
-
4
00
-
X
XX
R
-
S
Specifications:
PART NUMBER
FREQUENCY RANGE VALUE CAPACITANCE TOLERANCE
RFP-400-39R-S DC - 0.5 GHz 39 Ω 9.0 pF ± 5%
RFP-400-50R-S DC - 0.5 GHz 50 Ω 9.0 pF ± 5%
Power De-rating: Mounting Footprint and Procedure:
NOT RECOMMENDED APPLICATION
BOARD LOWER
THAN LEAD. THAN LEAD.
BOARD HIGHER
SCALE: NONESCALE: NONE
BOARD EVEN
WITH LEAD.THAN LEAD.
BOARD LOWER
SUGGESTED STRESS RELIEF METHODS
(2 PLACES)
.025 MIN.
SUGGESTED MOUNTING PROCEDURES:
1. MAKE SURE THAT THE DEVICES ARE MOUNTED ON
FLAT SURFACES (.001" UNDER THE DEVICE) TO
OPTIMIZE THE HEAT TRANSFER.
DRILL & TAP THE HEATSINK FOR THE APPROPRIATE2.
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 & SECURE
USING SOCKET HEAD SCREWS, FLAT & SPLIT WASHER.
TORQUE SCREWS TO THE APPROPRIATE VALUE. MAKE
5.
SURE THAT THE DEVICE IS FLAT AGAINST THE HEATSINK.
(CARE SHOULD BE TAKEN TO AVOID UPWARD PRESSURE OF
THE LEADS TOWARDS THE LID).
SOLDER LEADS IN PLACE USING APPROPROATE SOLDER WITH
A CONTROLLED TEMPERATURE IRON.
** FOR MORE DETAILS CONTACT FACTORY **
400-XXXR-S (097) Rev C
