MR Series — Metal Element Low Resistance
Features
• Ultra Low Resistance Values (0.005Ω – 0.1Ω)
• Excellent load of life stability
• Inherently non-inductive
• Low temperature coefficients
• Molded Bodies
Electrical Specifications
Electronical (Operating Temperature Range: -55°C to +125°C)
Power Rating
(Watts @ 25 C)
1.0W
3.0W
5.0W
Overload Power
(Watts)
(5 seconds)
5
15
25
Maximum
Working
Voltage
√PxR
√PxR
√PxR
Ohmic Range and Tolerance
1%
0.005Ω – 0.1Ω
0.005Ω – 0.1Ω
0.005Ω – 0.1Ω
5%
0.005Ω – 0.1Ω
0.005Ω – 0.1Ω
0.005Ω – 0.1Ω
Type)
MR1
MR3
MR5
Mechanical Specifications
Type
MR1
MR3
MR5
inches
mm
C
Lead Length
1.50
±
0.125
38.0
±
3.2
1.375
±
0.125
34.9250
±
3.175
1.250
±
0.125
31.750
±
3.175
A
Body Length
0.390
±
0.010
9.9
±
0.30
0.560
+
0.010
14.224
+
0.254
0.920
+
0.010
23.368
+
0.254
B
Body Diameter
0.140
3.60
0.210
5.334
0.330
8.382
±
0.008
±
0.20
±
0.010
±
0.254
±
0.010
±
0.254
D
Lead Diameter
0.0305
±
0.002
0.813
±
0.051
0.0305
+
0.002
0.813
+
0.051
0.040
+
0.002
1.016
+
0.051
Performance Characteristics
Environmental
Load Life (2000 hrs)
Thermal Shock
Vibration
Mechanical Shock
Dielectric Strength
Insulation Resistance
MIL-STD 202
Maximum %∆R
±
1%
±
1%
±
0.5%
±
0.5%
±
0.5%
>10
11
Ω
How to Order
MR
E
SEI Type
1
Code
0.02
Nominal Resistance
1%
Tolerance
R
Packaging
Code
1
3
5
Power
1
3
5
Tolerance
1%
3%
5%
Code
R
R
R
A
Description
Tape
Tape
Tape
Bulk
Type
MR 1
MR 3
MR 5
All
Pkg Qty
2500
750
500
1000
Toll Free: (888) SEI-SEI-SEI
www.seielect.com
37
email: marketing@seielect.com
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