RWR84S4R32FRB12 Vishay, RWR84S4R32FRB12 Datasheet - Page 2

• Manufacturer Part Number: RWR84S4R32FRB12
• Manufacturer: Vishay
• Type: Wirewoundr

Specifications of RWR84S4R32FRB12

• Power Rating(s): 7W
• Resistance: 4.32Ohm
• Tolerance (+ Or -): 1%
• Temperature Coefficient: ±50
• Mounting Style: Through Hole
• Construction: Axial
• Operating Temp Range: -65C to 250C
• Case Style: Ceramic Hi Temp Sil
• Military Standard: MIL-PRF-39007
• Failure Rate: R
• Lead Spacing (nom): Not Requiredmm
• Product Length (mm): 22.23mm
• Product Depth (mm): Not Requiredmm
• Product Height (mm): Not Requiredmm
• Lead Free Status / RoHS Status: Not Compliant

DIMENSIONS in inches [millimeters]
Note
(1)
MATERIAL SPECIFICATIONS
Element: Copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
Core: Ceramic, beryllium oxide, steatite or alumina,
depending on power requirement
Coating: Special high temperature silicone
Terminal and Winding: The terminal and the winding are
identified by a letter symbol in the military type designation.
Terminals: Solderable - Tinned Copperweld
Weldable - bare nickel per MIL-STD-1276, Type N-1
End Caps: Stainless steel
Part Marking: Source code, JAN, military PIN, date/lot code
APPLICABLE MIL-SPECIFICATION
MIL-PRF-39007: This is the military specification covering
axial lead established reliability power wirewound resistors.
Vishay Dale ESS, ESW, EGS, EGW, ESN and EGN
resistors meet or exceed the electrical, environmental and
dimensional requirements of this specification.
Note
• For resistance values above 100 Ω, test limit is ± 1.0 %
document number: 30203
Revision: 22-Oct-08
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature Coefficient
Dielectric Withstanding Voltage
Short Time Overload
Maximum Working Voltage
Insulation Resistance
Terminal Strength
Solderability
Operating Temperature Range
PERFORMANCE
TEST
Thermal Shock
Short Time Overload
Dielectric Withstanding
Voltage
Low Temperature Storage
High Temperature Exposure
Moisture Resistance
Shock, Specified Pulse
Vibration, High Frequency
Load Life
Extended Life
Terminal Strength
Military symbol:
S = Solderable, inductively wound
W = Weldable, inductively wound
N = Solderable, non-inductively wound
Z = Weldable, non-inductively wound
On some standard reel pack methods, the leads may be trimmed
to a shorter length than shown
B
Wirewound Resistors, Military/Established Reliability
A
CONDITIONS OF TEST
MIL-STD-2.2, Method 303
5 x rated power (RWR71, 80, 81, 89, 82), 10 x rated power (RWR74, 78, 84) for 5 s ± (0.2 % + 0.005 Ω) ΔR
500 V
1 min duration
- 65 °C for 24 h
250 °C for 2000 h
MIL-STD-202, Method 106
MIL-STD-202, Method 205, condition C
MIL-STD-202, Method 204, condition D
2000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF”
10 000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF”
MIL-STD-202, Method 211, condition A and C
5 pound (RWR80, 81, 82), 10 pound (RWR71, 74, 78, 84, 89)
ppm/°C ± 650 for 0.1 Ω to 0.499 Ω, ± 400 for 0.505 Ω to 1 Ω, ± 50 for 1.1 Ω to 10 Ω, ± 20 for 10 Ω and above
MIL-PRF-39007 Qualified, Type RWR, R Level
UNIT
V
°C
lb
V
AC
-
-
.
rms
For technical questions, contact: [e-mail]
1.50 [38.10]
(RWR80, 81, 82), 1000 V
min.
C
®
(1)
500 minimum for 2 W and smaller, 1000 minimum for 3 W and larger
5 minimum for 2 W and smaller, 10 minimum for 3 W and larger
1000 MΩ minimum dry, 100 MΩ minimum after moisture test
rms
10 x rated power for 5 s for 5 W size and greater
5 x rated power for 5 s for 3 W size and smaller,
(RWR71, 74, 78, 84, 89),
Meets requirements of ANSI J-STD-002
RWR RESISTOR CHARACTERISTICS
Derating
MIL-PRF-39007
MODEL
RWR81
RWR82
RWR80
RWR71
RWR89
RWR74
RWR84
RWR78
120
100
40
80
60
20
- 65 - 50
0
- 65 to + 250
(P x R)
[10.31 ± 0.787]
0
0.250 ± 0.031
[6.35 ± 0.787]
0.312 ± 0.016
[7.92 ± 0.406]
0.406 ± 0.031
0.812 ± 0.062
[20.62 ± 1.58]
0.560 ± 0.062
[14.22 ± 1.58]
0.875 ± 0.062
[22.23 ± 1.58]
0.875 ± 0.062
[22.23 ± 1.58]
1.780 ± 0.062
[45.21 ± 1.58]
1/2
25
ESS, ESN, EGS, EGN
A
DIMENSIONS in inches [millimeters]
50
AMBIENT TEMPERATURE IN °C
0.078 + 0.016 - 0.031
[1.98 + 0.406 - 0.787]
0.085 ± 0.020
[2.16 ± 0.508]
0.094 ± 0.031
[2.39 ± 0.787]
0.187 ± 0.031
[4.75 ± 0.787]
0.187 ± 0.031
[4.75 ± 0.787]
0.312 ± 0.031
[7.92 ± 0.787]
0.312 ± 0.031
[7.92 ± 0.787]
0.312 ± 0.031
[7.92 ± 0.787]
B
± (0.2 % + 0.005 Ω) ΔR
± (0.1 % + 0.005 Ω) ΔR
± (0.1 % + 0.005 Ω) ΔR
± (1.0 % + 0.005 Ω) ΔR
± (0.2 % + 0.005 Ω) ΔR
± (0.1 % + 0.005 Ω) ΔR
± (0.1 % + 0.005 Ω) ΔR
± (0.5 % + 0.005 Ω) ΔR
± (1.0 % + 0.005 Ω) ΔR
± (0.1 % + 0.005 Ω) ΔR
150
Vishay Dale
TEST LIMITS
www.vishay.com
0.020 ± 0.0015
[0.508 ± 0.038]
0.020 ± 0.0015
[0.508 ± 0.038]
0.020 ± 0.0015
[0.508 ± 0.038]
[0.813 ± 0.051]
[0.813 ± 0.051]
0.032 ± 0.002
0.032 ± 0.002
0.040 ± 0.002
[1.02 ± 0.051]
0.040 ± 0.002
[1.02 ± 0.051]
0.040 ± 0.002
[1.02 ± 0.051]
C
250
159