MR/TMR Series —Low Resistance Value - Molded 2 and 4 Leads
Features
• Metal element resistors
• Excellent load life stability
• Inherently non-inductive
• Tinned copper leads - 10 lbs. pull
• Low temperature coefficient
• High power to size ratio
• Molded bodies
• Two or four terminal
• TMR - Kelvin Bridge Test
Electrical Specifications
Type
Power Rating
(Watts)
@ 70°C
1.0 W
3.0 W
5.0 W
10.0 W
3.0 W
5.0 W
Short Time Overload
Dielectric Strength
Resistance
Temperature
Coefficient
50 - 400 ppm/°C*
50 - 400 ppm/°C*
50 - 400 ppm/°C*
50 - 400 ppm/°C*
40 ppm/°C
40 ppm/°C
Ohmic Range and Tolerance
1%, 5%
0.01Ω – 0.1Ω
0.005Ω – 0.2Ω
0.005Ω – 0.3Ω
0.01Ω – 0.5Ω
0.005Ω – 0.2Ω
0.005Ω – 0.3Ω
MR1
MR3
MR5
MR10
TMR3
TMR5
5 sec. at 5x Rated Power
5 sec. at 5x Rated Power
5 sec. at 5x Rated Power
5 sec. at 5x Rated Power
5 sec. at 5x Rated Power
5 sec. at 5x Rated Power
500 VAC
500 VAC
500 VAC
500 VAC
500 VAC
500 VAC
*TCR is value dependent. Please contact factory for specific data
.
Performance Characteristics
Test
Moisture Resistance
Thermal Shock
Load Life @ 70°C – 1000 hrs.
Resistance to Soldering Heat
Short Time Overload
Dielectric Withstanding Voltage
Operating Temperature Range
Test Results
± 5%
± 2%
± 5%
± 2%
± 2%
± 2%
-55ºC to +275°C
How to Order
MR
SEI Type
3
Code
.1
Nominal Resistance
1%
Tolerance
R
Packaging
Type
MR
TMR
Code
1
3
5
10
Tolerance
1%
5%
Code
R
R
R
R
B
B
Description
MR1
MR3
MR5
MR10
TMR3
TMR5
Pkg Qty
2500
750
500
250
100
50
Toll Free: (888) SEI-SEIS
(888) 734-7347
www.seielect.com
45
email: marketing@seielect.com
MR/TMR Series —Low Resistance Value - Molded 2 and 4 Leads
MR
TMR
Mechanical Specifications
Type
Tolerance
MR1
MR3
MR5
MR10
TMR3
TMR5
A
B
Body Length Body Diameter
±0.015
±0.4
0.385
9.8
0.560
14.2
0.925
23.5
1.925
46.4
0.625
15.9
0.940
23.9
±0.015
±0.4
0.135
3.4
0.205
5.2
0.330
8.4
0.475
10.0
0.205
5.2
0.330
8.4
C
Lead Length
±0.125
±3.4
1.375
34.9
1.375
34.9
1.375
34.9
1.375
34.9
1.375
34.9
1.375
34.9
D
Lead Diameter
±0.002
±0.05
0.032
0.81
0.032
0.81
0.036
0.91
0.036
0.91
0.032
0.81
0.036
0.91
E
Lead Spacing
inches
mm
n/a
n/a
n/a
n/a
0.125
3.2
0.200
5.1
Units
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
Toll Free: (888) SEI-SEIS
(888) 734-7347
www.seielect.com
46
email: marketing@seielect.com
PCB设计
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
