MT Series

MT Series
Low Ohm Power Resistors
•
•
•
•
•
•
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Resistances from 0.003 to 0.10Ohms
Tolerance to ±0.1%
TCR’s to ± 20 ppm/°C ( Four Terminal Version )
For Current Sensing and Shunt Applications
All Welded Construction
Low Inductance ( <10nH )
Four Terminal Versions Available (Consult Factory)
SPECIFICATIONS
Specification
Value
Resistance Range
0.003 to 0.10 Ohms*
Tolerances
2 Terminal: ±1% / ±5% ( Contact Factory for Others )
4 Terminal: ±0.1% / ±0.5% / ±1% / ±5% ( Contact Factory for Others )
Temperature Coefficient
See Chart Below
Inductance
<10nH
Dielectric Strength
1000VAC ( 500VAC for MT-1A and MT-2A )
Insulation Resistance
>1000 MOhms / Dry
Environmental Performance
(MIL-STD 202)
∆R
Test Conditions
Load Life
±1%
70°C / 90 min ON / 30 min OFF / 1000 hr
Moisture Resistance
±1%
40°C / 90-95% RH / DC 0.1W / 1000 hr
Temperature Cycling
±1%
-40°C for 30 min / +125°C for 30 min / 1000 hr
Short Term Overload
±1%
5X rated power for 5 seconds
*Other values available - Molding Wirewound
Power Derating Curve
500
120
400
100
Power ( % )
TCR ( ppm/K )
Temperature Coefficient
of Resistance (TCR)
300
2 Terminal
200
100
4 Terminal
0
0
0.01
0.03
0.05
0.07
0.09
0.11
0.13
80
60
40
20
0
0
Resistance Value ( Ω )
50
100
150
200
250
300
350
Ambient Temperature (°C)
Ordering Information
Part Description: Part Type - Resistance - Tolerance - TCR ( if not standard ) - 4T ( if desired )
Example: MT-5 0.01 Ohm 1% 4T
Riedon Inc.
7/13
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
Page 76
MT Series
Low Ohm Power Resistors
SPECIFICATIONS (continued)
Dimensions
Type
A
D
C
d
W (4T)
±0.020”
[±0.5mm]
±0.020”
[±0.5mm]
±0.020”
[±0.5mm]
±0.002”
[±0.05mm]
±0.010”
[±0.3mm]
MT-1A
1
0.430 [10.9]
0.120 [3.0]
0.590 [15.0]
0.025 [0.6]
-
MT-2A
2
0.430 [10.9]
0.120 [3.0]
0.590 [15.0]
0.032 [0.8]
-
MT-2B
3
0.580 [14.7]
0.200 [5.1]
0.665 [16.9]
0.032 [0.8]
-
MT-2C
3
0.500 [12.7]
0.250 [6.4]
0.625 [15.9]
0.032 [0.8]
-
MT-3
4
0.600 [15.2]
0.250 [6.4]
0.675 [17.1]
0.032 [0.8]
0.125 [3.2]
MT-4
4.5
0.750 [19.1]
0.250 [6.4]
0.750 [19.1]
0.040 [1.0]
0.125 [3.2]
MT-5
5
0.890 [22.6]
0.335 [8.5]
0.820 [20.8]
0.040 [1.0]
0.125 [3.2]
MT-6
6
1.055 [26.8]
0.395 [10.0]
0.903 [22.9]
0.040 [1.0]
0.125 [3.2]
MT-10
10
1.755 [44.58]
0.355 [9.02]
1.338 [34.0]
0.040 [1.0]
0.125 [3.2]
Riedon Inc.
7/13
Power Rating
Watts @ 25°C
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
Page 77