LTO050F22R00JTE3 [VISHAY]
RESISTOR, METAL GLAZE/THICK FILM, 2.5 W, 5 %, 150 ppm, 22 ohm, THROUGH HOLE MOUNT, TO-220, ROHS COMPLIANT;
| 型号： | LTO050F22R00JTE3 |
| 厂家： | 
VISHAY |
| 描述： | RESISTOR, METAL GLAZE/THICK FILM, 2.5 W, 5 %, 150 ppm, 22 ohm, THROUGH HOLE MOUNT, TO-220, ROHS COMPLIANT 电阻器 |
| 文件： | 总5页 (文件大小：105K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LTO 50
Vishay Sfernice
www.vishay.com
Power Resistor Thick Film Technology
FEATURES
• 50 W at 25 °C case temperature heatsink
mounted
• Direct mounting ceramic on heatsink
• Broad resistance range: 0.010 to 550 k
• Non inductive
• TO-220 package: Compact and easy to mount
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
click logo to get started
DESIGN SUPPORT TOOLS
Models
Available
LTO series are the extension of RTO types. We used the direct ceramic mounting design (no metal tab) of our RCH power
resistors applied to semiconductor packages.
DIMENSIONS in millimeters
3.2
10.4
3.2
16.2
12.7
Ø 3.2
1.3
0.8
3.5
0.6
1.8
5.08
Note
Tolerances unless stated: 0.3 mm
•
STANDARD ELECTRICAL SPECIFICATIONS
RESISTANCE RATED POWER LIMITINGELEMENT
TEMPERATURE
COEFFICIENT
ꢁꢁm/°C
CRITICAL
RESISTANCE
TOLERANCE
ꢀ
MODEL
SIZE
RANGE
P25 °C
W
VOLTAGE UL
V
LTO 50
TO-220
0.010 to 550K
50
500
1, 2, 5, 10
150, 250, 700, 900
5K
MECHANICAL SPECIFICATIONS
TECHNICAL SPECIFICATIONS
Mechanical Protection
Resistive Element
Substrate
Connections
Weight
Molded
Thick film
Alumina
Tinned copper
2 g max.
Dissiꢁation and Associated
Onto a heatsink
50 W at +25 °C (case temp.)
Power Rating and
Thermal Resistance
of the Comꢁonent
R
TH (j - c): 2.5 °C/W
Free air:
2.5 W at +25 °C
See Performance table
150 ppm/°C
Mounting Torque
1 Nm
Temꢁerature Coefficient
Standard
ENVIRONMENTAL SPECIFICATIONS
Temꢁerature Range
Climatic Category
Dielectric Strength
MIL STD 202
1500 VRMS - 1 min
10 mA max.
-55 °C to +150 °C
55 / 155 / 56
IEC 60695-11-5
2 applications 30 s
separated by 60 s
Insulation Resistance
Inductance
104 M
Flammability
0.1 μH
Revision: 16-Nov-17
Document Number: 50050
1
For technical questions, contact: sferfixedresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
LTO 50
Vishay Sfernice
www.vishay.com
PERFORMANCE
TESTS
CONDITIONS
REQUIREMENTS
EN 60115-1
1.5 Pr / 5 s
US < 1.5 UL
Momentary Overload
(0.5 ꢀ + 0.005 )
EN 60115-1
IEC 60068-2-14 Test Na
5 cycles
Raꢁid Temꢁerature Change
(0.5 ꢀ + 0.005 )
-55 °C to +155 °C
EN 60115-1
1000 h Pr at +25 °C
Load Life
(1 ꢀ + 0.005 )
(0.5 ꢀ + 0.005 )
(0.2 ꢀ + 0.005 )
(0.2 ꢀ + 0.005 )
(0.5 ꢀ + 0.005 )
MIL-STD-202
method 103 B cond. D
Humidity (Steady State)
Vibration
MIL-STD-202
method 204 cond. D
MIL-STD-202
method 211 cond. A1
Terminal Strength
Shock
100G, MIL-STD-202
method 213 cond. I
SPECIAL FEATURES
Resistance Values
Tolerances
0.010
0.015
0.1
0.5
1 ꢀ at 10 ꢀ
Tyꢁical Temꢁerature Coefficient
(-55 ° to +155 °C)
900 ppm/°C
700 ppm/°C 250 ppm/°C
150 ppm/°C
CHOICE OF THE HEATSINK
The user must choose according to the working conditions of the component (power, room temperature).
Maximum working temperature must not exceed 150 °C. The dissipated power is simply calculated by the following ratio:
1
T
P = -------------------------------------------------------------------------------------------
R
+ R
+ R
TH (j - c)
TH (c - h) TH (h - a)
P: Expressed in W
RTH (c - h): Thermal resistance value measured between outer side of
T: Difference between maximum working temperature and room
temperature
the resistor and upper side of the heatsink. This is the thermal
resistance of the interface (grease, thermal pad), and the quality of
the fastening device.
RTH (j - c): Thermal resistance value measured between resistive layer
and outer side of the resistor. It is the thermal resistance of the
R
: Thermal resistance of the heatsink.
TH (h - a)
component.
Examꢁle:
R
TH (c - a) for LTO 50 power rating 10 W at ambient temperature +25 °C
Thermal resistance RTH (j - c): 2.5 °C/W
Considering equation (1) we have:
T = 150 °C - 25 °C = 125 °C
T
P
125
10
RTH (j - c) + RTH (c - h) + RTH (h - a) = ----- = -------- = 12.5 °C/W
RTH (c - h) + RTH (h - a) = 12.5 °C/W - 2.5 °C/W = 10 °C/W
with a thermal grease RTH (c - h) = 1 °C/W, we need a heatsink with RTH (h - a) = 9 °C/W.
Revision: 16-Nov-17
Document Number: 50050
2
For technical questions, contact: sferfixedresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
LTO 50
Vishay Sfernice
www.vishay.com
OVERLOADS
POWER RATING
In any case the applied voltage must be lower than the
maximum overload voltage of 750 V.
The temperature of the case should be maintained within the
limits specified.
The values indicated on the graph below are applicable to
resistors in air or mounted onto a heatsink.
To improve the thermal conductivity, surfaces in contact
should be coated with a silicone grease and the torque
applied on the screw for tightening should be around 1 Nm.
ENERGY CURVE
125
100
100
10
1
75
50
25
0
0.1
0.01
10-7
10-6
10-5
10-4
10-3
10-2
10-1
100
0
20
40
60
80
100
120
140 150
OVERLOAD DURATION IN s
CASE TEMPERATURE IN °C
POWER CURVE
1 000 000
PACKAGING
Tube of 50 units
100 000
10 000
1000
MARKING
Model, style, resistance value (in ), tolerance (in ꢀ),
manufacturing date, Vishay Sfernice trademark.
100
10-7
10-6
10-5
10-4
10-3
10-2
10-1
100
OVERLOAD DURATION IN s
Revision: 16-Nov-17
Document Number: 50050
3
For technical questions, contact: sferfixedresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
LTO 50
Vishay Sfernice
www.vishay.com
ORDERING INFORMATION
LTO
50
F
2.7 k
1 ꢀ
xxx
TU50
e3
MODEL
STYLE
CONNECTIONS RESISTANCEVALUE
TOLERANCE CUSTOM DESIGN PACKAGING LEAD (Pb)-FREE
optional
1 ꢀ
2 ꢀ
5 ꢀ
on request:
special TCR,
shape etc.
10 ꢀ
GLOBAL PART NUMBER INFORMATION
L
T
O
0
5
0
F
2
7
0
0
0
J
T
E
3
GLOBAL
MODEL
SIZE
LEADS
OHMIC VALUE
TOLERANCE
PACKAGING
LEAD (Pb)-FREE
LTO
050
F = radial leads
The first four digits are
significant figures and the
last digit specifies the
F = 1 ꢀ
G = 2 ꢀ
J = 5 ꢀ
K = 10 ꢀ
T = tube
E3 = pure tin
tube 50 pieces
number of zeros to follow.
R designates decimal point.
48R70 = 48.7
48701 = 48 700
10002 = 100 000
R0100 = 0.01
R4700 = 0.47
27000 = 2700 = 2.7 k
RELATED DOCUMENTS
APPLICATION NOTES
Potentiometers and Trimmers
www.vishay.com/doc?51001
www.vishay.com/doc?52029
Guidelines for Vishay Sfernice Resistive and Inductive Components
Revision: 16-Nov-17
Document Number: 50050
4
For technical questions, contact: sferfixedresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
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Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
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including but not limited to the warranty expressed therein.
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© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
Document Number: 91000
1
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