MS310-20.0M-1% - Caddock - Datasheet.Live

Sales and 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

ELECTRONICS, INC.

28_IL108.01717

Power Film Resistor Family with Wide Resistance Range and +275°C Maximum Temperature

With power ratings to 22 Watts and voltage ratings as

high as 6,000 volts in an axial-lead resistor with values to

30 Megohms, the Type MS Power Film Resistors deliver

the performance capabilities that can simplify circuit

design and reduce equipment cost and complexity.

Type MS Power Film Resistors provide all these features in

a single resistor:

•Full power and voltage ratings, without derating:

- for non-inductive performance.

- for high resistance values that extend the critical

resistance value up to 10 times.

•Higher voltage ratings without the limitations of minimum

wire size and spacing.

•Excellent long-term stability.

Tests demonstrate typical stability of 0.05% per 1,000

hours over extended life.

Micronox® Resistance Films

Type MS performance begins with Caddock's Micronox®

resistance films. Produced exclusively by Caddock

Electronics, these proven complex oxide lms have been

used reliably for over 30 years in Caddock's precision power

resistor products.

Micronox® resistance films are fired directly onto a

ceramic core at temperatures above 1400°F (760°C). These

resistance films have demonstrated outstanding stability

when exposed to a high ambient temperature, thermal shock

and high power densities.

This unique approach to precision power resistors opens

new design possibilities by providing a wider resistance

range, precise temperature characteristics, and higher

temperature and power handling capability.

The Serpentine Pattern used in this patented product

contain features which enhance high stability in

High-Power Resistor applications.

Most models are manufactured with Caddock's

Non-Inductive serpentine resistive pattern that provides for

neighboring lines to carry current in opposite directions,

thereby achieving maximum cancellation of ux elds over

the entire length of the resistor. This efcient non-inductive

construction is accomplished without derating of any

performance advantages.

The result is a truly non-inductive resistor that is about as

inductive as a straight piece of wire the length of the resistor

body. This efcient design means faster settling times and

minimum distortion in all types of high frequency circuits.

Manufacturing Control

Type MS Resistors are produced under intensive

manufacturing controls with processes which include power

conditioning, overvoltage conditioning, and maximum

temperature conditioning.

Quality Control

From the certication and testing of all materials, to the

supervision of manufacturing processes, all Caddock Type

MS Power Film Resistors are produced under procedures

that have been approved for conformance to the

requirements of Mil-I-45208 in many recent surveys as

described on page 8.

Reliability Verication

Type MS resistors are included in the Caddock Reliability

Testing Program. Conformance to specication parameters

including Extended Life, Shock, Vibration, and Humidity are

veried on a periodic basis. Data from Type MS resistors

can be compared by similarity to other Caddock resistor

types, since Type ML, MM, MS, MP, MG, and MK represent

an identical combination of materials - aluminum oxide

substrate, Micronox® resistance lm, and silicone insulating

coating.

Carefully Controlled Manufacturing and Test Procedures Assure Compliance with

Strict Quality Control Requirements.

Caddock's

Non-Inductive

Design

Type MS Power Film Resistors

Certain products shown in this catalog are covered by one or more patents,

there are also patents pending.

Page 1 of 2

Sales and 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

ELECTRONICS, INC.

Specications:

Resistance Tolerance: ±1% (tolerances to 0.1% on

special order).

Temperature Coefcient: 50 ppm/°C. TC referenced

to +25°C, ∆R taken at -15°C and +105°C.

Insulation Resistance: 10,000 Megohms, min.

Overload/Overvoltage: 5 times rated power with applied

voltage not to exceed 1.5 times maximum continuous oper-

ating voltage for 5 seconds. ∆R 0.5% max. or 0.5 ohm

max., whichever is greater.

Thermal Shock: Mil-Std-202, Method 107, Cond. C, ∆R

0.5% max. or 0.5 ohm max., whichever is greater.

Moisture Resistance: Mil-Std-202, Method 106, ∆R 0.5%

max. or 0.5 ohm max., whichever is greater.

Load Life: 1,000 hours at rated power at +25°C or

+125°C (see derating curve), not to exceed rated

voltage, ∆R 0.5% max. or 0.5 ohm max., whichever is

greater. Mounting method per Mil-R-39007, para. 4.7.2

"conditioning".

Maximum Operating Temperature: +275°C.

Encapsulation: High Temperature Silicone Conformal.

MS313, MS315

MS310

MS281

MS260

MS245

MS244

MS223

MS221

MS220

MS214

MS176, MS210

MS151, MS175

MS126, MS150

*Limited by power rating.

Models with Caddock's Non-Inductive Resistance Pattern are in non-shaded areas.

Models with low inductance construction are in shaded areas.

Ordering Information:

MS220 -100K - 1%

Model Number:

Resistor Value:

Tolerance

Type MS Power Film Resistors

RATED POWER OR

RATED VOLTAGE, %

AMBIENT TEMPERATURE, °C

100

25 75

125 175 225 275

A - all MS models

except MS126,

MS151, MS176

B - MS126, MS151,

MS176

Derating Curve:

1.500 ± .125

(38.10 ± 3.18)

DIMENSIONS IN INCHES AND (MILLIMETERS)

MS322

Dielect.

Strength

Model

No.

Dimensions in inches and (millimeters)

Resistance

Min.

Max.

Voltage

.020 ±.002

(.51 ±.05)

.070 ±.015

(1.78 ±.38)

.188 ±.020

(4.78 ±.51)

MS126

0.25

500

20 Ω

1 Meg

200

.020 ±.002

(.51 ±.05)

.070 ±.015

(1.78 ±.38)

.188 ±.020

(4.78 ±.51)

MS150

0.50

500

20 Ω

2 K

.025 ±.002

(.64 ±.05)

.094 ±.015

(2.39 ±.38)

.250 ±.020

(6.35 ±.51)

MS151

0.50

750

20 Ω

2 Meg

300

.025 ±.002

(.64 ±.05)

.094 ±.015

(2.39 ±.38)

.250 ±.020

(6.35 ±.51)

MS175

0.75

750

20 Ω

2 K

.025 ±.002

(.64 ±.05)

.094 ±.015

(2.39 ±.38)

.313 ±.020

(7.95 ±.51)

MS176

0.75

750

45 Ω

5 Meg

500

.025 ±.002

(.64 ±.05)

.094 ±.015

(2.39 ±.38)

.313 ±.020

(7.95 ±.51)

MS210

1.0

750

45 Ω

3 K

.025 ±.002

(.64 ±.05)

.109 ±.025

(2.77 ±.64)

.313 ±.030

(7.95 ±.76)

MS214

1.0

750

45 Ω

5 Meg

500

.025 ±.002

(.64 ±.05)

.140 ±.030

(3.56 ±.76)

.400 ±.060

(10.16 ±1.52)

MS220

2.0

800

20 Ω

10 Meg

1,000

.032 ±.002

(.81 ±.05)

.165 ±.030

(4.19 ±.76)

.575 ±.050

(14.61 ±1.27)

MS221

3.0

800

45 Ω

10 Meg

1,000

.040 ±.002

(1.02 ±.05)

.230 ±.030

(5.84 ±.76)

.480 ±.060

(12.19 ±1.52)

MS223

3.0

1,000

20 Ω

4 Meg

800

.040 ±.002

(1.02 ±.05)

.230 ±.030

(5.84 ±.76)

.950 ±.060

(24.13 ±1.52)

MS244

4.0

1,000

45 Ω

15 Meg

2,000

.040 ±.002

(1.02 ±.05)

.300 ±.030

(7.62 ±.76)

.570 ±.060

(14.48 ±1.52)

MS245

4.0

1,000

20 Ω

6 Meg

800

.040 ±.002

(1.02 ±.05)

.300 ±.030

(7.62 ±.76)

.970 ±.060

(24.64 ±1.52)

MS260

6.0

1,000

45 Ω

15 Meg

2,000

.040 ±.002

(1.02 ±.05)

.350 ±.040

(8.89 ±1.02)

.910 ±.060

(23.11 ±1.52)

MS281

8.0

1,000

45 Ω

8 Meg

2,000

.040 ±.002

(1.02 ±.05)

.350 ±.040

(8.89 ±1.02)

1.250 ±.070

(31.75 ±1.78)

MS310

10.0

1,000

45 Ω

20 Meg

4,500

.040 ±.002

(1.02 ±.05)

.350 ±.040

(8.89 ±1.02)

2.000 ±.080

(50.80 ±2.03)

MS313

12.5

1,000

50 Ω

30 Meg

6,000

.040 ±.002

(1.02 ±.05)

.350 ±.040

(8.89 ±1.02)

2.000 ±.080

(50.80 ±2.03)

MS315

15.0

1,000

50 Ω

1 Meg

Watt-

age at

+125°C

Watt-

age at

+25°C

0.25

0.50

0.75

0.30

0.45

0.60

1.2

1.8

2.4

3.6

4.8

6.0

7.5

9.0

.040 ±.002

(1.02 ±.05)

.350 ±.040

(8.89 ±1.02)

3.000 ±.090

(76.20 ±2.29)

MS322

22.0

1,000

100 Ω

1.5 Meg

13.2

Construction:

The Type MS Power

Film Resistor is constructed

with Micronox® resistance lms

bonded to a high strength solid

ceramic core. Nickel alloy end caps

and axial leads complete the assembly.

Encapsulation is provided by a high

temperature silicone conformal coating.

Type MS: Lead material is Nickel Clad Copper

with thin Gold Plate, solderable.

For welding applications, optional pure nickel

leads are available on Models MS126, MS150,

MS151, MS175, MS176, MS210. Contact

Caddock Applications Engineering.

Page 2 of 2

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

Caddock:

MS315-124-1% MS220-100K-1% MS223-110-1% MS322-500-1% MS310-25K-1% MS176-1MEG-0.1% MS244-

5.00M-1% MS220-499K-1% MS223-41.7K-1% MS210-1.00K-1% MS244-500K-1% MS223-499K-1% MS221-20K-

1% MS151-2.00K-1% MS176-300K-1% MS281-27K-1% ms210-100-1% MS220-390-1% MS315-1.00M-1% MS151-

124-1% MS310-100-1% MS310-300-1% MS223-442-1% MS151-3.16K-1% MS220-100-1% MS221-510R-1%

MS310-10K-1% MS220-78.7-1% MS310-500K-1% MS260-680K-5% MS310-10.0K-5% MS260-680K-2% MS221-

1.00M-1% MS313-30.0M-5% MS223-383K-1% MS210-45.0-1% MS151-200K-1% MS221-250-1% MS176-5.11K-1%

MS313-200K-1% MS244-1.00M-1% MS310-20.0M-1% MS220-6.8K-1% MS220-1K-1% MS310-1.89M-1% MS315-

100-1% MS310-100K-1% MS310-167K-1% MS310-455K-1% MS176-1.00K-1% MS310-2.00K-1% MS310-250K-1%

MS310-10.0M-1% MS313-500-1% MS260-6.8K-1% MS220-4.00M-0.1% MS220-16.5K-0.1% MS313-15.0K-2%

MS322-25.0K-0.1% MS220-2.00K-0.1% MS322-10.0K-0.1% MS220-55.0K-1% MS220-73.0K-1% MS313-390-1%

MS315-50.0K-1% MS244-200K-1% MS313-1.00M-1% MS221-100K-1% MS221-49.9K-1% MS220-2.00K-1%

MS310-200K-1% MS126-249K-0.1% MS220-120-1% MS126-9.09K-0.1% MS-221-82R5 MS281-680-1% MS310-

1M-1% MS151-10.0K-5% MS221-27.0K-1% MS126-2.00K-5% MS221-274-1% MS315-100K-1% MS151-100-1%

MS220-8.20M-1% MS260-500K-1% MS281-125K-1% MS315-47K-1%