Sales and Corporate Office

1717 Chicago Avenue

Riverside, California 92507-2364

Phone: (951) 788-1700

Fax: (951) 369-1151

Applications Engineering

17271 North Umpqua Hwy.

Roseburg, Oregon 97470-9422

Phone: (541) 496-0700

Fax: (541) 496-0408

e-mail: caddock@caddock.com • web: www.caddock.com

For Caddock Distributors listed by country see caddock.com/contact/dist.html

© 2004 Caddock Electronics, Inc.

CAD

K

DOC

100

175

0

20

40

100

80

60

150

A

B

25

CASE TEMPERATURE, °C

DIMENSIONS IN INCHES AND (MILLIMETERS)

Figure 3

TO-247 Style

MP9100

All power and associated overload ratings are derated

based upon case temperature using the derating curve.

The case temperature is measured at the center of the

ceramic mounting surface, with the part properly

mounted and under electrical load. Without a heat sink,

when in free air at +25°C, the MP915 is rated for 1.25

watts, the MP916, MP925, MP930 are rated for 2.25

watts, and the MP9100 is rated for 3.5 watts.

The thermal design should satisfy the following equation:

operating temperature range of the application.

Mounting Note: Mount on a smooth, clean, and flat heat sink surface with a thermal interface material, such

as thermal grease. The entire exposed ceramic portion must be in thermal contact with the heat sink. When

screw mounting, use a compression washer which provides a mounting force of 150 to 300 pounds (665 to

1330 N). This will provide sufficient pressure on the package over time and through large temperature varia-

tions to maintain the maximum power dissipation capability. Mounting torque to avoid package damage is 8

in-lbs. (0.90 N-m). If a spring clip is used, a clip force of 8 to 30 pounds (35 to 130 N) is recommended to be

applied to the center of the package. The clip should be round or smooth in the contact area to avoid concen-

trating the load on a small point of the plastic body of the package. Another mounting option is to use a

pressure bar method which can achieve a greater mounting force with a greater contact area.

For additional applications information regarding mounting and pulse handling see the Caddock

Applications Notes at caddock.com or contact Applications Engineering.

Derating Curve

Specifications:

Temperature Coefficient for MP915, MP916,

MP925, and MP930:

TC referenced to +25°C, ΔR taken at +150°C

0.50 ohms and above, -20 to +80 ppm/°C

0.050 ohm to 0.49 ohms, 0 to +200 ppm/°C

0.020 ohm to 0.049 ohm, 0 to +300 ppm/°C

0.010 ohm to 0.019 ohm, 0 to +500 ppm/°C

Temperature Coefficient for MP9100:

TC referenced to +25°C, ΔR taken at +175°C

0.50 ohms and above, -20 to +80 ppm/°C

0.050 ohm to 0.49 ohms, 0 to +150 ppm/°C

Inductance: MP915, MP916, MP925, and MP930

10nH typical; MP9100, 20nH typical, in series when

measured at a point 0.2 inches from the resistor

body.

is based upon connections made between

terminals shorted, and the metal surface the part is

mounted to or a metal clip in contact with the top

surface of the part.

Insulation Resistance: 10,000 Megohms min.

The resistor element is electrically isolated from

the mounting surface.

Load Stability: 2,000 hours at rated power.

Δ

R ±(1.0 percent + 0.0005 ohm) max. Power

rating dependent upon case temperature. See

derating curve.

Momentary Overload: 1.5 times rated power with

applied voltage not to exceed 1.5 times maximum

continuous operating voltage for 5 seconds. ΔR

±(0.5 percent + 0.0005 ohm) max.

Moisture Resistance: Mil-Std-202, Method 106.

Δ

R ±(0.5 percent + 0.0005 ohm) max.

Thermal Shock: Mil-Std-202, Method 107, Cond. F.

Δ

R ±(0.5 percent + 0.0005 ohm) max.

Shock: 100G, Mil-Std-202, Method 213, Cond. I.

Δ

R ±(0.4 percent + 0.0005 ohm) max.

Vibration, High Frequency: Mil-Std-202, Method

204, Cond. D. ΔR ±(0.4 percent + 0.0005 ohm)

max.

Terminal Strength: Mil-Std-202, Method 211,

Cond. A (Pull Test) 5 lbs. ΔR ±(0.2 percent

+ 0.0005 ohm) max.

Terminal Material: Solderable

Measurement Note: For these specifications,

resistance measurement shall be made at a point

0.2 inch (5.08 mm) from the resistor body.

+

.030 ±.004

(.76 ± .10)

.025 ± .004 (.64 ±.10)

.200 ±.010

(5.08 ±.26)

.450 ±.050

(11.43 ±1.27)

.115 ±.010

(2.92 ±.26)

MP915

0.10Ω

1%

.110 ±.010

(2.79 ±.26)

.053 ± .007

(1.35 ± .18)

.058 ±.007 (1.47 ±.18)

.320 ±.010

(8.12 ±.26)

.094 ±.004

(2.39 ±.10) DIA

.

CL

.440 ±.010

(11.18 ±.26)

.080 ±.020

(2.03 ±.51)

.640 ±.010

(16.26 ±.26)

.030 ±.004

(.76 ± .10)

.025 ± .004 (.64 ±.10)

.200 ±.010

(5.08 ±.26)

.500 ±.050

(12.70 ±1.27)

.130 ±.030

(3.30 ±.76)

.125 ±.010

(3.18 ±.26)

.410 ±.010

(10.41 ±.26)

MP930

10.0

1%

.125 ±.010

(3.18 ±.26)

.125 ±.004

(3.18 ±.10) DIA.

CL

.053 ± .007

(1.35 ± .18)

.070 ±.010 (1.78 ±.26)

MP916

MP915

Model

No.

Comments

MP930

MP925

TO-220 Style

TO-220 Style

Package

TO-220 Style

TO-126 Style

0.010 Ω

0.019 Ω

0.020 Ω

1.00 K

Min.

Max.

Resistance

0.020 Ω

4.99 K

5.00 K

100 K

16 Watts

*

15 Watts

*

Power

Rating

30 Watts

*

25 Watts

*

Max.

Voltage

Power

Limited

200

250

500

Thermal Resistance

8.33°C/Watt

5.00°C/Watt

4.17°C/Watt

7.81°C/Watt

150°C

Figure 2

Figure 1

Dimensions

Figure 2

Figure 2

Max. Temp.

150°C

150°C

150°C

MP9100

TO-247 Style

0.050 Ω

100 Ω

100 Watts

*

1.50°C/Watt

Figure 3

175°C

Power

Limited

Ceramic mounting surface

Ceramic mounting surface

Ceramic mounting surface

Ceramic mounting surface

Ceramic mounting surface

Figure 1

TO-126 Style

MP915

Figure 2

TO-220 Style

MP916, MP925

and MP930

0.143 ± 0.004

(3.63 ± 0.10) Dia.

0.620 ± 0.010

(15.75 ± 0.26)

0.110 ± 0.030

(2.79 ± 0.76)

0.570 ± 0.050

(14.48 ± 1.27)

0.195 ± 0.010

(4.95 ± 0.26)

0.095 ± 0.010

(2.41 ± 0.26)

0.143 ± 0.007

(3.63 ± 0.18)

0.060 ± 0.004

(1.52 ± 0.10)

0.400 ± 0.010

(10.16 ± 0.26)

0.210 ± 0.010

(5.33 ± 0.26)

0.815 ± 0.010

(20.70 ± 0.26)

CL

MP 9100

50.0

1%

0.032 +0.004 / -0.010

(0.81 +0.10 / -0.26)

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