DTO25
www.vishay.com
Vishay Sfernice
Surface Mounted Power Resistor Thick Film Technology
FEATURES
• AEC-Q200 qualified
• 25 W at 25 °C case temperature
• Surface mounted resistor - TO-252 (DPAK) style
package
• Wide resistance range: 0.016
to 700 k
• Non inductive
• Resistor isolated from metal tab
• Solder reflow secure at 270 °C / 10 s, MSL = 1
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
DESIGN SUPPORT TOOLS
click logo to get started
Models
Available
DIMENSIONS
in millimeters
8.2
0.8 ± 0.1
1
2.8
10°
6.35
Footprint recommendation for
solderable contact area:
7.87
6.82
7.3
12.4
1.4 +0.2 /-0
0.8 ± 0.1
0.6 ± 0.1
1.6 ± 0.1
1.2
5.08
1.8
3.81 1.78
2.54 2.54
1.65
1.65
Tolerance unspecified: ± 0.3
Notes
• For the assembly, we recommend the lead (Pb)-free thermal profile as per J-STD-020C.
• Power dissipation is 3.2 W at an ambient temperature of 25 °C when mounted on a double sided copper board using FR4 HTG, 70 μm of
copper, 39 mm x 30 mm x 1.6 mm, with thermal vias.
• For other information about dissipation, see the Application Note 52027: “Thermal Management on SMD Thick Film Resistors (D2TO20,
D2TO35, DTO25)”.
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
DTO25
SIZE
TO-252 (DPAK)
RESISTANCE
RANGE
0.016 to 700K
RATED POWER LIMITING ELEMENT
TOLERANCE
P
25 °C
VOLTAGE
U
L
±%
W
V
25
200
1, 2, 5, 10
TEMPERATURE
COEFFICIENT
± ppm/°C
150
CRITICAL
RESISTANCE
1.6K
MECHANICAL SPECIFICATIONS
Mechanical Protection
Resistive Element
Substrate
Connections
Weight
Molded
Thick film
Alumina
Tinned copper, Ni under layer
2 g max.
ELECTRICAL SPECIFICATIONS
Tolerances
From 0.016
to 0.047
:
± 5 % and ± 10 %
> 0.047
to 0.1
:
± 2 % to ± 10 %
0.11
:
± 1 % to ± 10 %
25 W at +25 °C case
temperature R
TH (j - c)
: 5 °C/W
See Special Feature table
± 150 ppm/°C
1500 V
RMS
- 1 min - 15 mA max.
(between terminals and board)
10
4
M
0.1 μH
Power Rating and Thermal
Resistance
Temperature Coefficient
Dielectric Strength
Insulation Resistance
Inductance
ENVIRONMENTAL SPECIFICATIONS
Temperature Range
Climatic Category
Flammability
-55 °C to +150 °C
55 / 150 / 56
IEC 60695-11-5
2 applications 30 s
separated by 60 s
Revision: 29-Mar-17
Document Number: 51054
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
4.1
8.51
DTO25
www.vishay.com
Vishay Sfernice
TO-252 style (DPAK)
DIMENSIONS
Standard Package
SPECIAL FEATURES
Resistance Values
Requirement Temperature Coefficient (TCR)
(-55 °C +150 °C) IEC 60115-1
0.016
± 900 ppm/°C
0.1
± 350 ppm/°C
0.5
± 150 ppm/°C
PERFORMANCE
TESTS
Momentary Overload
Load Life
High Temperature Exposure
CONDITIONS
IEC 60115-1 §4.13
1.6 Pr 5 s
US < 1.5 UL
IEC 60115-1
1000 h, 90/30 Pr at +25 °C
AEC-Q200 REV D conditions:
MIL-STD-202 method 108
1000 h, +175 °C, unpowered
AEC-Q200 REV D conditions:
pre-conditioning 3 reflows according
JESTD020D
JESD22 method JA-104
1000 cycles, (-55 °C to +125 °C)
dwell time 15 min
AEC-Q200 REV D conditions:
MIL-STD-202 method 103
1000 h, 85°C, 85 % RH
AEC-Q200 REV D conditions:
pre-conditioning 3 reflows according
JESTD020D
MIL-STD-202 method 108
1000 h, 90/30, powered, +125 °C
AEC-Q200 REV D conditions:
AEC-Q200-002
25 kV
AD
AEC-Q200 REV D conditions:
MIL-STD-202 method 204
20
g’s
for 20 min, 12 cycles
test from 10 Hz to 2000 Hz
AEC-Q200 REV D conditions:
MIL-STD-202 method 213
100
g’s,
6 ms, 3.75 m/s
3 shocks/direction
AEC-Q200 REV D conditions:
AEC-Q200-005
bending 2 mm, 60 s
AEC-Q200 REV D conditions:
AEC-Q200-006
1.8 kgf, 60 s
REQUIREMENTS
± (0.25 % + 0.005
)
± (1 % + 0.005
)
± (1 % + 0.005
)
Temperature Cycling
± (0.5 % + 0.005
)
Biased Humidity
± (0.5 % + 0.005
)
Operational Life
± (1 % + 0.005
)
ESD Human Body Model
± (0.5 % + 0.005
)
Vibration
± (0.5 % + 0.005
)
Mechanical Shock
± (0.5 % + 0.005
)
Board Flex
± (0.25 % + 0.01
)
± (0.25 % + 0.01
)
Terminal Strength
ASSEMBLY SPECIFICATIONS
For the assembly on board, we recommend the lead (Pb)-free thermal profile as per J-STD-020C
TESTS
Resistance to Soldering Heat
CONDITIONS
AEC-Q200 REV D
MIL-STD-202 method 210
Solder Bath method: 270 °C / 10 s
IPC / JEDEC
®
J-STD-020C
85 °C / 85 % RH / 168 h
REQUIREMENTS
± (0.5 % + 0.005
)
Level: 1
+ pass requirements of TCR
Overload and Dielectic Strength after MSL
Moisture Sensitivity Level (MSL)
Revision: 29-Mar-17
Document Number: 51054
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
DTO25
www.vishay.com
POWER RATING
The temperature of the case should be maintained within the limits specified.
100
Vishay Sfernice
% OF RATED DISSIPATION
80
60
40
20
0
0
25
50
100
150
200
CASE TEMPERATURE IN °C
CHOICE OF THE BOARD
The user must choose the board 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
TH (j - c)
+ R
TH (c - h)
+ R
TH (h - a)
P:
Expressed in W
T:
Difference between maximum working temperature and room temperature
R
TH (j - c)
: Thermal resistance value measured between resistive layer and outer side of the resistor. It is the thermal resistance
of the component: 5 °C/W.
R
TH (c - h)
: Thermal resistance value measured between outer side of the resistor and upper side of the board. This is the thermal
resistance of the solder layer.
R
TH (h - a)
: Thermal resistance of the board.
Example:
R
TH (c - h)
+ R
TH (h - a)
for DTO25 power rating 3 W at ambient temperature +25 °C.
Thermal resistance R
TH (j - c)
: 5 °C/W
Considering equation
(1)
we have:
T
= 150 °C - 25 °C = 125 °C
R
TH (j - c)
+ R
TH (c - h)
+ R
TH (h - a)
=
T/P
= 125/3 = 41.7 °C/W
R
TH (c - h)
+ R
TH (h - a)
= 41.7 °C/W - 5 °C/W = 36.7 °C/W
ACCIDENTAL OVERLOAD
In any case the applied voltage must be lower than the maximum overload voltage of U
s
= 300 V. The values indicated on the
graph below are applicable to resistors onto a board.
ENERGY CURVE
at 25 °C
100
POWER CURVE
at 25 °C
100 000
ENERGY IN JOULES
10
10 000
1
POWER IN W
1000
0.1
0.01
100
0.001
10
-7
10
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
-7
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
OVERLOAD DURATION IN s
Revision: 29-Mar-17
OVERLOAD DURATION IN s
Document Number: 51054
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
DTO25
www.vishay.com
Single Pulse:
These informations are for a single pulse on a cold resistor at 25 °C (not already used for a dissipation) and for pulses of
100 ms maximum duration.
The formula used to calculate
E
is:
U
-
E
=
P
x
t
=
-------
x
t
R
2
Vishay Sfernice
with:
E
(J): Pulse energy
P
(W): Pulse power
t
(s): Pulse duration
U
(V): Pulse voltage
R
(): Resistor
The energy calculated must be less than that allowed by the graph.
Repetitive or Superimposed Pulses:
The following formula is used to calculate the “equivalent“ energy of a repetitive pulse or the “equivalent energy“ of a pulse on
a resistor that is already dissipating power.
P
a
E
c
=
E
x
1
+
-----
-
P
r
with:
E
c
(J): Equivalent pulse energy
E
(J): Known pulse energy
P
r
: Resistor power rating
P
a
: Mean power being dissipated
The energy calculated must be less than that allowed by the graph and the average power dissipated (P
a
) must not exceed the
continuous power of resistor.
PACKAGING
• Tube: max. 50 units per tube
5.2
1.6
0.8
• Reel: max. 500 units per reel
3
0.9
8.7
0.5
1
14.5
17°
R 0.5
0.8
MARKING
Model, style, resistance value (in
),
tolerance (in %), manufacturing date, Vishay Sfernice trademark.
Revision: 29-Mar-17
Document Number: 51054
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
DTO25
www.vishay.com
Vishay Sfernice
C
100 k
RESISTANCE
VALUE
±1%
TOLERANCE
F=±1%
G=±2%
J=±5%
K = ± 10 %
XXX
CUSTOM DESIGN
Optional on request:
shape, etc
e3
LEAD (Pb)-FREE
ORDERING INFORMATION
DTO
MODEL
025
STYLE
CONNECTIONS
SAP PART NUMBERING GUIDELINES
D
T
O
0
2
5
C
1
0
0
0
2
F
R
E
3
GLOBAL
MODEL
DTO
SIZE
025
LEADS
C
= surface mount
OHMIC VALUE
The first four digits are
significant figures and the
last digit specifies the
number of zeros to follow.
R designates decimal point.
48R70
= 48.7
48701
= 48 700
10002
= 100 000
R0100
= 0.01
R6800
= 0.68
27000
= 2700
= 2.7 k
TOLERANCE
F
=1%
G
=2%
J
=5%
K
= 10 %
PACKAGING
R
= reel
500 pieces
T
= tube
50 pieces
LEAD (Pb)-FREE
E3
= pure tin
Revision: 29-Mar-17
Document Number: 51054
5
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
京公网安备 11010802033920号
EEWORLD
