MS245-25.8K-0.1% datasheet, PDF

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MS245-25.8K-0.1%: DescriptionFixed Resistor, 4W, 25800ohm, 800V, 0.1% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED; CategoryPassive components The resistor; File Size393KB，2 Pages; ManufacturerCaddock; Environmental Compliance

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MS245-25.8K-0.1% Overview

Fixed Resistor, 4W, 25800ohm, 800V, 0.1% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED

MS245-25.8K-0.1% Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Objectid	1769169087
package instruction	AXIAL LEADED
Reach Compliance Code	compliant
Country Of Origin	USA
ECCN code	EAR99
YTEOL	6.8
structure	Tubular
JESD-609 code	e4
Lead diameter	1.02 mm
Lead length	38.1 mm
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	275 °C
Package diameter	7.62 mm
Package length	14.48 mm
Package shape	TUBULAR PACKAGE
Package form	Axial
Rated power dissipation(P)	4 W
Rated temperature	25 °C
resistance	25800 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
technology	METAL GLAZE/THICK FILM
Temperature Coefficient	50 ppm/°C
Terminal surface	Gold (Au) - with Nickel (Ni) barrier
Terminal shape	WIRE
Tolerance	0.1%
Operating Voltage	800 V

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Type MS Power Film Resistors

Page 1 of 2

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:

•

Higher voltage ratings without the limitations of minimum

•

Excellent long-term stability.

wire size and spacing.

Tests demonstrate typical stability of 0.05% per 1,000

hours over extended life.

- for non-inductive performance.

- for high resistance values that extend the critical

resistance value up to 10 times.

Micronox

Resistance Films

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.

Type MS performance begins with Caddock's Micronox

complex metal oxide resistance ﬁlms. Produced exclusively

by Caddock Electronics, these proven complex oxide ﬁlms

have been used reliably for over 30 years in Caddock's

precision power resistor products.

Caddock's

Non-Inductive

Design

The Serpentine Pattern used in this patented product

contain features which enhance high stability in

High-Power Resistor applications.

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.

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 ﬂux ﬁelds over

the entire length of the resistor. This efﬁcient 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 efﬁcient design means faster settling times and

minimum distortion in all types of high frequency circuits.

Carefully Controlled Manufacturing and Test Procedures Assure Compliance with

Strict Quality Control Requirements.

Manufacturing Control

Type MS Resistors are produced under intensive

manufacturing controls with processes which include power

conditioning, overvoltage conditioning, and maximum

temperature conditioning.

Reliability Veriﬁcation

Quality Control

From the certiﬁcation 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.

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

there are also patents pending.

Type MS resistors are included in the Caddock Reliability

Testing Program. Conformance to speciﬁcation parameters

including Extended Life, Shock, Vibration, and Humidity are

veriﬁed 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 ﬁlm, and silicone insulating

coating.

website: caddock.com

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

ELECTRONICS, INC.

Sales and Applications Engineering

17271 North Umpqua Hwy.

Roseburg, Oregon 97470-9422

Phone: (541) 496-0700

email: caddock@caddock.com

28_IL108.0321

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