Resistors
Make Possible
Low Resistance Metal Alloy
Power Resistors
LRMAP3920
ꢀ Resistanceꢀrangeꢀ0.2mΩꢀtoꢀ2mΩ
ꢀ Excellentꢀlong-termꢀstability
ꢀ Standardꢀpowerꢀraꢁngꢀupꢀtoꢀ5Wꢀ
ꢀ Thermalꢀsubstrateꢀpowerꢀraꢁngꢀupꢀtoꢀ10W
ꢀ Currentꢀsensingꢀforꢀpowerꢀelectronics
ꢀ AEC-Q200ꢀqualified
AllꢀpartsꢀareꢀPb-freeꢀandꢀcomplyꢀwithꢀEUꢀDirecꢁveꢀ2011/65/EUꢀ(RoHS2)
Electrical Data
LRMAP3920
Alloyꢀtype
A
B
C
Resistanceꢀvalueꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
Powerꢀraꢁngꢀ(standard),ꢀPr120ꢀ
Powerꢀraꢁngꢀ(thermalꢀsubstrate),ꢀPrts70
Overloadꢀraꢁngꢀ(5s)ꢀ1
Conꢁnuousꢀpulseꢀenergy
Internalꢀthermalꢀimpedance,ꢀRthi
Resistanceꢀtoleranceꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
TCRꢀ(20ꢀtoꢀ60°C)ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
Thermal EMF
mΩ
W
W
W
J
0.2
0.3
0.5
0.7
1
4
1
5
1.5
4.5
2
4
1
5
10
25
2
7
20
4
12
25
12
7
23
9
11
20
6
14
11
2.5
13
4
8
6
6
9
°C/W
%
ppm/°C
µV/°C
nH
1
±200
±150
±70
±60
±50
<2
<3
Inductance
Ambientꢀtemperatureꢀꢀꢀꢀꢀ
°C
-55 to 170
Note 1: Mounted on FR4 board. See Thermal Data and Mounꢀng secꢀon for details.
Note 2: Mounted on thermal substrate. See Thermal Data and Mounꢀng secꢀon for details.
Physical Data
Dimensions in mm and weight in mg
L1
+0.2
-0.3
H
L
A
D
B
T
Wt.
Type
+0.3
-0.2
±0.3
max
±0.5
±0.1
nom
nom
LRMAP3920A-R0002
LRMAP3920B-R0003
LRMAP3920B-R0005
LRMAP3920B-R0007
LRMAP3920B-R001
LRMAP3920C-R001
LRMAP3920C-R0015
LRMAP3920C-R002
4.0
1.50
1.43
0.85
0.62
0.43
1.36
0.90
0.67
694
608
380
271
188
542
361
277
10.0
5.2
0.6
2.0
0.5
5.0
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.
Construcꢀon
The component is formed from a conꢀnuous band of E-beam welded precision resisꢀve 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.
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12.15