MP725 Surface Mount Power Film Resistors
D-Pak Style Surface Mount Power Package including Metal Tab - 0.020 ohm to 1.00 Kohm
Use your thermal design experience with power semiconductors in
D-Pak style power packages. This experience will help you get the most out
of this unique family of surface mount power resistors. The thermal design
issues are the same where power handling capability is based on the case
temperature which is maintained in your design.
MP725 Surface Mount Power Film Resistors introduce our proven
Micronox® resistance film system in the widely accepted D-Pak style surface
mount power package. The non-inductive design makes this resistor ideal in
high frequency communications, power switching circuits and snubbers.
The special performance features of our patented MP725 Surface Mount
Power Film Resistors include:
• D-Pak style power package for surface mount applications.
• Metal tab assists in post surface mount soldering inspection.
• Resistance values to 0.020 ohm for current sense applications.
• Non-Inductive Design.
• Up to 25 Watt power rating at +25°C case temperature.
Specification
Resistance Tolerance: ±1% for 0.050Ω up to
1.00KΩ, ±5% for 0.020Ω up to 0.049Ω (5% and 20%
are available for most resistance values).
• Resistor element is electrically isolated from the metal heat sink tab.
Temperature Coefficient:
Resistance
Dielect. Strength
RMSAC
Max.
Power
Rating
TC referenced to +25°C, ∆R taken at +150°C
0.50 ohm and above, -20 to +80 ppm/°C
0.050 ohm to 0.49 ohm, 0 to +200 ppm/°C
0.020 ohm to 0.049 ohm, 0 to +300 ppm/°C
Model No.
Terminal
V
Voltage
Max.
Min.
MP725
25 Watts
200
0.020 Ω
1.00K
1,500
Solderable
*
The case temperature is to be used for purposes of
establishing the maximum applied power. See Derating
Curve. The case temperature measurement is made on the
metal mounting tab against the molded body. Derate
appropriately for the ambient temperature range, the thermal
resistance of the mounting surface, and the temperature
limitations of the adjacent materials (such as glass epoxy).
DERATING CURVE
Thermal Shock: Mil-Std-202, Method 107,
Cond. F, ∆R ±(0.5 percent + 0.0005 ohm) max.
Momentary Overload: 1.5 times rated power
with applied voltage not to exceed 1.5 times
maximum continuous operating voltage for 5
seconds, ∆R ±(0.5 percent + 0.0005 ohm) max.
Load Life: 2,000 hours at rated power, ∆R ±(1.0
percent + 0.0005 ohm). Power rating dependent
upon case temperature. See derating curve.
*
100
80
60
40
20
0
Derating ( thermal resistance ) is 0.200 W/°C ( 5.0°C/W ).
Power dissipation is 2.5 watts, at an ambient temperature of
25°C, when mounted on a double sided copper board (2 ounce,
G-10 or FR-4) 1 inch x 1 inch x .063 inch (thick).
25
100
150
CASE TEMPERATURE, °C
Moisture Resistance: Mil-Std-202, Method 106,
∆R ±(0.5 percent + 0.0005 ohm) max.
Shock: 100G, Mil-Std-202, Method 213,
Standard Resistance Values:
Custom resistance values can be
manufactured for high quantity
applications. Please contact Caddock
Applications Engineering.
0.020 Ω 0.25 Ω
0.025 Ω 0.30 Ω
0.030 Ω 0.33 Ω
0.033 Ω 0.40 Ω
0.040 Ω 0.50 Ω
0.050 Ω 0.75 Ω
0.075 Ω 1.00 Ω
0.10 Ω 1.50 Ω
0.15 Ω 2.00 Ω
0.20 Ω 2.50 Ω
3.00 Ω 27.0 Ω
3.30 Ω 30.0 Ω
4.00 Ω 33.0 Ω
5.00 Ω 40.0 Ω
7.50 Ω 47.0 Ω
8.00 Ω 50.0 Ω
10.0 Ω 56.0 Ω
12.0 Ω 75.0 Ω
15.0 Ω 100 Ω
20.0 Ω 120 Ω
25.0 Ω 150 Ω
200 Ω
250 Ω
300 Ω
330 Ω
400 Ω
470 Ω
500 Ω
560 Ω
750 Ω
1.00 K
Cond. I, ∆R ±(0.4 percent + 0.0005 ohm) max.
Vibration, High Frequency: Mil-Std-202,
Method 204, Cond. D, ∆R ±(0.4 percent
+ 0.0005 ohm) max.
Measurement Note:
For the specifications, resistance
measurement shall be made at the
foot of surface mount formed terminal.
Terminal Strength: Mil-Std-202, Method 211,
Cond. A (Pull Test) 5 lbs., ∆R ±(0.2 percent
+ 0.0005 ohm) max.
FOOTPRINT FOR
SOLDERABLE CONTACT AREA
Insulation Resistance: 10,000 Megohms, min.
The resistor is electrically isolated from the metal
tab.
.310
(7.87)
PACKAGE DIMENSIONS
Scale:
1.5X
.335
(8.51)
DWV:
The
dielectric strength rating of
.110 ±.010
.320 ±.010
(8.13 ±.26)
(2.79 ±.26)
1500 VRMSAC is based upon connections made
between terminals shorted and either the metal
surface the part is mounted to or a metal clip in
contact with the top surface of the part.
.040 ±.018
(1.02 ±.46)
.250
(6.35)
.032 ±.003
(.81 ±.08)
.070
(1.78)
.275
(6.99)
.325 ±.020
(8.26 ±.51)
Heat sink
height
.150
(3.81)
MP 725
10.0
1%
.053 ± .007
(1.35 ± .18)
Packaging Note:
.160 ±.010
(4.06 ±.26)
.100
(2.54)
.100
(2.54)
.030 ± .004
(.76 ± .10)
Quantities of 250 pieces or greater, will be
supplied in tape and reel packaging. The full reel
quantity is 1250 pieces.
.200 ±.010
(5.08 ±.26)
.070 ±.010
(1.78 ±.26)
.065
(1.65)
.065
(1.65)
.058 ±.007
(1.47 ±.18)
.025 ±.004
(.64 ±.10)
Soldering Note: During surface mount
soldering the soldering temperature profile must
not cause the metal tab of this device to
Ordering Information:
Dimensions in inches and (millimeters)
MP725 - 10.0 - 1%
exceed 220°C.
Model Number:
Tolerance
Resistor Value:
Certain products shown in this catalog are covered by one or more patents, there are also patents pending.
Applications Engineering
17271 North Umpqua Hwy.
Roseburg, Oregon 97470-9422
Phone: (541) 496-0700
Sales and Corporate Office
1717 Chicago Avenue
Riverside, California 92507-2364
Phone: (951) 788-1700
e-mail: caddock@caddock.com • web: www.caddock.com
Fax: (541) 496-0408
Fax: (951) 369-1151
27.1 IL101.0804
© 2002-2004 Caddock Electronics, Inc.
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