TM
SURFACE MOUNT
CERAMIC ENCASED TYPE
Fire Proof
Ceramic Housing
Alloy Electrical
Resistance Ribbon
SERIES
POWER TYPE
Power Ceramic Encased Resistors Current Sense
Industrial Applications
RLS
Tinned Copper
Terminals
Quartz Silica
Powder
All Welded Construction
PHYSICAL CONFIGURATION
D
A
E
fC
B
Z
SIDE VIEW
HTR
TYPE
PROFILE
DIMENSIONS (mm)
POWER
RESISTANCE
TYPICAL
RATING
WT. PER
RANGE
AT 25°C A (MAX) B (+1.0) C (MAX) D (+0.5) E (+0.5) Z (+1.0)
min
PC [gms]
max
RL1.5S 1.5W
RL3S
RL5S
3W
5W
10.0
14.0
22.0
17.0
20.0
27.0
3.5
5.5
8.5
0.8
0.8
0.8
5.0
8.0
13.0
4.0
6.5
9.0
R005
R10
0.3
1.0
2.8
R0045 R22
R0025 R39
IMPORTANT MOUNTING / ASSEMBLY DATA
For the guidance of the Design Engineer, our applications laboratory has given the recommended Pad size and
Geometry which is shown below :-
DIMENSIONS (mm)
a
1
b
HTR
TYPE
RL1.5S
RL3S
RL5S
a
4.0
4.0
4.0
b
9.5
9.5
16.0
l
13.0
16.0
23.5
Resistance value checking to be done using 4½ digit micro ohm meter and insulated clips.
TM
SURFACE MOUNT
CERAMIC ENCASED TYPE
RLS
ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA
Test
Resistance tolerance
Performance Requirements
+ 10% [K]; + 5% [J]; + 3%[H];
+ 2% [G]; + 1% [F]
at 25°C full power dissipation
derated linearly to zero at 275°C
> 1000 Mega Ohms
5 times rated wattage for 5 sec.
-40°C to + 155°C
+ 60ppm/°C to + 550ppm/°C depending
on resistance value and power rating.
(Measured from - 55°C to + 125°C
referenced to + 25°C
Rated ambient temperature
Insulation resistance
Short time overload
Ambient operating
temperature range
Temperature co-efficient
of resistance
TYPICAL APPLICATIONS
The introduction of these low ohm / current sense resistors with surface mounting has broadened the scope for
designers substantially as they fulfil a long standing demand for surface mount high power resistors for current
sense purposes.
Note :
Due to recent technological advances, the ceramic cases used may be steatite ceramic or corderite
ceramic or high alumina ceramic depending on the nature of the application. Hence the ceramic cases may be
off-white or variations of brown and variations of grey; colours which are inherent to these ceramic materials.
ORDERING INFORMATION
RLS
RL3S
R047
J
TOLERANCE
RESISTANCE V
ALUE
HTR TYPE
SERIES
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
