LRMA3920 Datasheet, PDF (1/4 Pages) TT Electronics. – Standard power rating up to 5W

Resistors
Low Resistance Metal Alloy
Power Resistors
Make Possible
LRMAP3920
Resistance range 0.2mΩ to 2mΩ
Excellent long-term stability
Standard power rating up to 5W
Thermal substrate power rating up to 10W
Current sensing for power electronics
AEC-Q200 qualified
All parts are Pb-free and comply with EU Directive 2011/65/EU (RoHS2)
Electrical Data
LRMAP3920
Alloy type
A
B
C
Resistance value
mΩ 0.2
0.3
0.5
0.7
1
1
1.5
2
Power rating (standard), P_r120 ¹
W
5
Power rating (thermal substrate), P_rts70 ²
W
10
Overload rating (5s) ¹
W
25
4
5
4.5
4
7
20
25
23
20
Continuous pulse energy
J 11
13
8
6
4
12
9
6
Internal thermal impedance, R_thi
°C/W 2.5
4
6
9
12
7
11
14
Resistance tolerance
%
1
TCR (20 to 60°C)
ppm/°C ±200
±150
±70
±60
±50
Thermal EMF
µV/°C
<2
Inductance
nH
<3
Ambient temperature
°C
-55 to 170
Note 1: Mounted on FR4 board. See Thermal Data and Mounting section for details.
Note 2: Mounted on thermal substrate. See Thermal Data and Mounting section for details.
Physical Data
Type
LRMAP3920A-R0002
LRMAP3920B-R0003
LRMAP3920B-R0005
LRMAP3920B-R0007
LRMAP3920B-R001
LRMAP3920C-R001
LRMAP3920C-R0015
LRMAP3920C-R002
Dimensions in mm and weight in mg
L
±0.3
L1
+0.2
-0.3
H
+0.3
-0.2
A
max
D
±0.5
4.0
10.0
5.2 0.6 2.0
5.0
B
T Wt.
±0.1 nom nom
1.50 694
1.43 608
0.85 380
0.62 271
0.5
0.43 188
1.36 542
0.90 361
0.67 277
Marking
The component is laser marked with “3920”, alloy type, ohmic value and tolerance.
Solvent Resistance
The component is resistant to all normal industrial cleaning solvents suitable for printed circuits.
Construction
The component is formed from a continuous band of E-beam welded precision resistive strip. Various alloys are used based on the
resistance value.
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
www.ttelectronicsresistors.com
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