LTO030F2R200JTE3 [VISHAY]
RES 2.2 OHM 30W 5% TO220;
| 型号： | LTO030F2R200JTE3 |
| 厂家： | 
VISHAY |
| 描述： | RES 2.2 OHM 30W 5% TO220 |
| 文件： | 总5页 (文件大小：88K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LTO 30
Vishay Sfernice
www.vishay.com
30 W Power Resistor Thick Film Technology
FEATURES
• 30 W at 25 °C case temperature heatsink
mounted
• Direct mounting ceramic on heatsink
• Broad resistance range: 0.010 Ω to 550 kΩ
• Non inductive
• TO-220 package: compact and easy to mount
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
LINKS TO ADDITIONAL RESOURCES
3
D
3D Models
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
Ω
TOLERANCE
ꢀ
MODEL
SIZE
RANGE
P25 °C
VOLTAGE UL
V
Ω
W
LTO 30
TO-220
0.010 to 550K
30
500
1, 2, 5, 10
150, 250, 700, 900
8.33K
MECHANICAL SPECIFICATIONS
TECHNICAL SPECIFICATIONS
Mechanical Protection
Resistive Element
Substrate
Molded
Dissiꢁation and Associated
Onto a heatsink
Thick film
30 W at +25 °C (case temp.)
Power Rating and
Thermal Resistance
of the Comꢁonent
RTH (j - c): 4.2 °C/W
Free air:
Alumina
Tinned copper
2 g max.
Connections
2.25 W at +25 °C
See Performance table
150 ppm/°C
Weight
Mounting Torque
Temꢁerature Coefficient
Standard
1 Nm
Dielectric Strength
MIL STD 202
Insulation Resistance
Inductance
1500 VRMS - 1 min
10 mA max.
ENVIRONMENTAL SPECIFICATIONS
Temꢁerature Range
-55 °C to +150 °C
≥ 104 MΩ
≤ 0.1 μH
Climatic Category
55 / 155 / 56
IEC 60695-11-5
2 applications 30 s
separated by 60 s
Flammability
Revision: 25-Nov-2020
Document Number: 50049
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 30
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 Ω)
EN 60115-1
IEC 60068-2-14 Test Na
5 cycles
Raꢁid Temꢁerature Change
(0.5 ꢀ + 0.005 Ω)
-55 °C to +155 °C
EN 60115-1
1000 h Pr at +25 °C
Load Life
(1 ꢀ + 0.005 Ω)
(0.5 ꢀ + 0.005 Ω)
(0.2 ꢀ + 0.005 Ω)
(0.2 ꢀ + 0.005 Ω)
(0.5 ꢀ + 0.005 Ω)
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)
ΔT
P = -------------------------------------------------------------------------------------------
R
+ R
+ R
TH (j - c)
TH (c - h) TH (h - a)
P: Expressed in W
ΔT: Difference between maximum working temperature and room
temperature
RTH (c - h): Thermal resistance value measured between outer side of
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
component.
R
: Thermal resistance of the heatsink.
TH (h - a)
Examꢁle:
R
TH (c - a) for LTO 30 power rating 10 W at ambient temperature +25 °C
Thermal resistance RTH (j - c): 4.2 °C/W
Considering equation (1) we have:
ΔT = 150 °C - 25 °C = 125 °C
ΔT
125
10
------
RTH (j - c) + RTH (c - h) + RTH (h - a)
=
= -------- = 12.5 °C/W
P
RTH (c - h) RTH (h - a) = 12.5 °C/W - 4.2 °C/W = 8.3 °C/W
with a thermal grease RTH (c - h) = 1 °C/W, we need a heatsink with RTH (h - a) = 7.3 °C/W.
Revision: 25-Nov-2020
Document Number: 50049
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 30
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 Ω), 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: 25-Nov-2020
Document Number: 50049
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 30
Vishay Sfernice
www.vishay.com
ORDERING INFORMATION
LTO
30
F
2.7 kΩ
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
3
0
F
2
7
0
0
0
J
T
E
3
GLOBAL
MODEL
SIZE
LEADS
OHMIC VALUE
The first four digits are
TOLERANCE
PACKAGING
LEAD (Pb)-FREE
LTO
030
F = radial leads
F = 1 ꢀ
G = 2 ꢀ
J = 5 ꢀ
K = 10 ꢀ
T = tube
E3 = pure tin
significant figures and the
last digit specifies the
number of zeros to follow.
R designates decimal point.
48R70 = 48.7 Ω
tube 50 pieces
48701 = 48 700 Ω
10002 = 100 000 Ω
R0100 = 0.01 Ω
R4700 = 0.47 Ω
27000 = 2700 Ω = 2.7 kΩ
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: 25-Nov-2020
Document Number: 50049
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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Revision: 09-Jul-2021
Document Number: 91000
1
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