RS02B250R0BE12 Vishay, RS02B250R0BE12 Datasheet - Page 2

• Manufacturer Part Number: RS02B250R0BE12
• Description: RESISTOR, WIREWOUND, 250OHM, 3W, 0.1%
• Manufacturer: Vishay
• Series: RSr
• Type: Wirewound Resistor Militiary Type RW Precision Power Silicone Coatedr

Specifications of RS02B250R0BE12

• Resistance: 250ohm
• Resistance Tolerance: ± 0.1%
• Power Rating: 3W
• Resistor Element Material: Wirewound
• Resistor Case Style: Axial Leaded
• Temperature Coefficient: ± 20ppm/°C
• Tolerance: 0.1 %
• Termination Style: Axial
• Operating Temperature Range: - 65 C to + 250 C
• Dimensions: 4.75 mm Dia. x 15.8 mm L
• Product: Power Resistors Wire Wound Silicon Coated
• Dielectric Strength: 1000 VoltsAC
• Power Rating(s): 3W
• Tolerance (+ Or -): 0.1%
• Operating Temp Range: -65C to 250C
• Case Style: Ceramic Hi Temp Sil
• Military Standard: MIL-PRF-26
• Failure Rate: Not Required
• Lead Spacing (nom): Not Requiredmm
• Product Length (mm): 15.8mm
• Product Depth (mm): Not Requiredmm
• Product Height (mm): Not Requiredmm
• Construction: Cylindrical
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DIMENSIONS in inches [millimeters]
Note
(1)
MATERIAL SPECIFICATIONS
Element: Copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
Core: Ceramic, steatite or alumina, depending on physical
size
Coating: Special high temperature silicone
Standard Terminals: 100 % Sn, or 60/40 Sn/Pb coated
Copperweld
End Caps: Stainless steel
Part Marking: DALE, model, wattage
date code
Note
(2)
•
Note
(1)
document number: 30204
Revision: 18-Nov-10
Derating
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature Coefficient
Dielectric Withstanding Voltage
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
Terminal Strength
All ΔR figures shown are maximum, based upon testing requirements per MIL-PRF-26
On some standard reel pack methods, the leads may be trimmed
to a shorter length than shown
Wattage marked on part will be “U” characteristic
Military “RW” parts are only available with 60/40 Sn/Pb finish
120
100
80
60
40
20
0
- 65 - 50
®
0
25
50
(1)
Wirewound Resistors, Military, MIL-PRF-26 Qualified,
CONDITIONS OF TEST
Rated power applied until thermally stable, then a minimum of 15 min at - 55 °C ± (0.2 % + 0.05 Ω) ΔR ± (2.0 % + 0.05 Ω) ΔR
5 x rated power (3.75 W and smaller), 10 x rated power (4 W and larger) for 5 s ± (0.2 % + 0.05 Ω) ΔR ± (2.0 % + 0.05 Ω) ΔR
500 minimum for RS1/4 thru RS01A, 1000 for all others, duration of 1 min
- 65 °C for 24 h
250 h at: U = + 250 °C, V = + 350 °C
MIL-STD-202 Method 213, 100 g's for 6 ms, 10 shocks
Frequency varied 10 Hz to 2000 Hz, 20 g peak, 2 directions 6 h each
2000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF”
5 s to 10 s, 5 or 10 lb pull test (depending on size), torsion test - 3 alternating
directions, 360° each
MIL-STD-202 Method 106, 7b not applicable
A
B
CHAR. U
Type RW, Precision Power, Silicone Coated
150
AMBIENT TEMPERATURE IN °C
ppm/°C
UNIT
V
°C
Ω
lb
V
For technical questions, contact:
AC
-
(2)
C
, value, tolerance,
1.50
[38.10]
min.
250
CHAR. V
(1)
D
± 90 for below 1 Ω, ± 50 for 1 Ω to 9.9 Ω, ± 20 for 10 Ω and above
500 minimum for RS1/4 thru RS01A, 1000 minimum for all others
350
Characterisitic U = - 65 to + 250, characteristic V = - 65 to + 350
1000 MΩ minimum dry, 100 MΩ minimum after moisture test
5 minimum for RS1/4 thru RS01A, 10 minimum for all others
MIL-PRF-26 type - meets requirements of ANSI J-STD-002
[e-mail]
Note
(3)
NS 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 (NS005, for example).
Two conditions apply:
1. For NS models, divide maximum resistance values by two
2. Body O.D. on NS02C may exceed that of the RS02C by
010"
RS RESISTOR CHARACTERISTICS
GLOBAL
MODEL
RS1/4
RS1/2
RS01A
RS01A...300
RS01M
RS002
RS02M
RS02B
RS02B...300
RS02C
RS02C...17
RS02C...23
RS005
RS005...69
RS005...70
RS007
RS010
RS010...39
RS010...38
B (max.) dimension is clean lead to clean lead
[10.31 ± 0.787]
0.250 ± 0.031
[6.35 ± 0.787]
0.312 ± 0.016
[7.92 ± 0.406]
0.406 ± 0.031
0.285 ± 0.025
[7.24 ± 0.635]
0.625 ± 0.062
[15.88 ± 1.57]
0.500 ± 0.062
[12.70 ± 1.57]
0.560 ± 0.062
[14.22 ± 1.57]
0.500 ± 0.062
[12.70 ± 1.57]
0.500 ± 0.062
[12.70 ± 1.57]
0.875 ± 0.062
[22.23 ± 1.57]
[30.99 ± 1.57]
[45.21 ± 1.57]
[45.21 ± 1.57]
1.22 ± 0.062
1.78 ± 0.062
1.78 ± 0.062
(P x R)
A
1/2
DIMENSIONS in inches [millimeters]
1.0[25.4]
± (0.1 % + 0.05 Ω) ΔR ± (0.1 % + 0.05 Ω) ΔR
± (0.2 % + 0.05 Ω) ΔR ± (2.0 % + 0.05 Ω) ΔR
± (0.5 % + 0.05 Ω) ΔR ± (2.0 % + 0.05 Ω) ΔR
± (0.2 % + 0.05 Ω) ΔR ± (2.0 % + 0.05 Ω) ΔR
± (0.1 % + 0.05 Ω) ΔR ± (0.2 % + 0.05 Ω) ΔR
± (0.1 % + 0.05 Ω) ΔR ± (0.2 % + 0.05 Ω) ΔR
± (0.5 % + 0.05 Ω) ΔR ± (3.0 % + 0.05 Ω) ΔR
± (0.1 % + 0.05 Ω) ΔR ± (1.0 % + 0.05 Ω) ΔR
[11.10]
[19.43]
[14.27]
[15.80]
[15.06]
[15.06]
[32.51]
[47.50]
[46.74]
(max.)
0.281
[7.14]
0.328
[8.33]
0.437
0.311
[7.90]
0.765
0.562
0.622
0.593
0.593
B
1.28
1.87
1.84
Characteristic U
(3)
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]
0.110 ± 0.015
[2.79 ± 0.381]
0.250 ± 0.031
[6.35 ± 0.787]
0.185 ± 0.015
[4.70 ± 0.381]
0.187 ± 0.031
[4.75 ± 0.787]
0.218 ± 0.031
[5.54 ± 0.787]
0.218 ± 0.031
[5.54 ± 0.787]
0.312 ± 0.031
[7.92 ± 0.787]
0.312 ± 0.031
[7.92 ± 0.787]
0.375 ± 0.031
[9.53 ± 0.787]
0.375 ± 0.031
[9.53 ± 0.787]
TEST LIMITS
C
Vishay Dale
Characteristic V
www.vishay.com
RS, NS
[0.508 ± 0.051]
[0.508 ± 0.051]
[0.508 ± 0.051]
[0.508 ± 0.051]
[0.813 ± 0.051]
[0.813 ± 0.051]
[0.813 ± 0.051]
0.020 ± 0.002
0.020 ± 0.002
0.020 ± 0.002
0.020 ± 0.002
0.040 ± 0.002
[1.02 ± 0.051]
0.032 ± 0.002
0.032 ± 0.002
0.040 ± 0.002
[1.02 ± 0.051]
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]
0.040 ± 0.002
[1.02 ± 0.051]
D
143