RH005250R0FE02 Vishay, RH005250R0FE02 Datasheet - Page 4

• Manufacturer Part Number: RH005250R0FE02
• Description: RESISTOR, WIREWOUND, 250OHM, 5W, 1%
• Manufacturer: Vishay
• Series: RHr

Specifications of RH005250R0FE02

• Resistance: 250ohm
• Resistance Tolerance: ± 1%
• Power Rating: 7.5W
• Resistor Element Material: Wirewound
• Resistor Case Style: Axial Lugs
• No. Of Pins: 2
• Temperature Coefficient: ± 20ppm/°C
• Tolerance: 1 %
• Operating Temperature Range: - 55 C to + 250 C
• Dimensions: 16.41 mm W x 15.24 mm L x 8.13 mm H
• Product: Power Resistors Wire Wound Aluminum Housed
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MATERIAL SPECIFICATIONS
Element: Copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
Core: Ceramic, steatite or alumina, depending on physical
size
Encapsulant: Silicone molded construction
Housing: Aluminum with hard anodic coating
End Caps: Stainless steel
Standard Terminals: For RH-5 through RH-50 size terminal
finish - Tin/lead is 60/40 Sn/Pb w/Nickel underplate & Lead
(Pb)-free is Ni/Pd/Au, finish is on copper clad steel core
terminal. For RH-100 & RH-250 terminals are threaded
stainless steel.
Note: Military (RE) parts are only available with tin/lead finish
Part Marking: DALE, Model, Wattage, Value, Tolerance,
Date Code
NH NON-INDUCTIVE
Models of equivalent physical and electrical specifications
are available with non-inductive (Aryton-Perry) winding.
They are identified by substituting the letter N for R in the
model number (NH-5, for example).
Document Number: 30201
Revision: 11-Jul-07
PERFORMANCE
TEST
Thermal Shock
Short Time Overload
Dielectric Withstanding Voltage
Temperature
Moisture Resistance
Shock, Specified Pulse
Vibration, High Frequency
Load Life
Terminal Strength
Wirewound Resistors, Military, MIL-PRF-18546 Qualified,
Rated power applied until thermally stable, then a minimum of 15 minutes at - 55 °C ± (0.5 % + 0.05 Ω) ΔR
5 × rated power for 5 seconds
1000 V
4500 V
250 °C for 2 hours
MIL-STD-202 Method 106, 7b not applicable
MIL-STD-202 Method 213, 100 g's for 6 ms, 10 shocks
1000 hours at rated power, + 25 °C, 1.5 hours “ON”, 0.5 hours “OFF”
30 second, 5 pound pull test for RH-5 and RH-10, 10 pound pull test for other sizes,
torque test - 24 pound inch for RH-100 and 32 pound inch for RH-250
Frequency varied 10 to 2000 Hz, 20 g peak, 2 directions 6 hours each
Type RE, Aluminum Housed, Chassis Mount
For technical questions, contact: [e-mail]
rms
rms
for RH-5, RH-10 and RH-25; 2000 V
for RH-100 and RH-250; duration one minute
CONDITIONS OF TEST
SPECIAL MODIFICATIONS
A number of special modifications to the aluminum housed
resistor
modifications include:
•
•
•
•
•
•
APPLICABLE MIL SPECIFICATIONS
MIL-PRF-18546 is the military specification covering
aluminum housed, chassis mount, power resistors. VISHAY
RH and NH resistors are listed as qualified on the
MIL-PRF-18546 QPL.
Terminal configurations and materials
Resistance values and tolerances
Low resistance temperature coefficient (RTC)
Housing configuration
Threaded mounting holes
Preconditioning and other additional testing
rms
for RH-50
style
are
available
upon
± (0.5 % + 0.05 Ω) ΔR
± (0.2 % + 0.05 Ω) ΔR
± (0.5 % + 0.05 Ω) ΔR
± (1.0 % + 0.05 Ω) ΔR
± (0.2 % + 0.05 Ω) ΔR
± (0.2 % + 0.05 Ω) ΔR
± (1.0 % + 0.05 Ω) ΔR
± (0.2 % + 0.05 Ω) ΔR
Vishay Dale
request.
TEST LIMITS
www.vishay.com
RH, NH
Special
169