14007-L1R260A datasheet, PDF - EEWORLD Datasheet

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14007-L1R260A: DescriptionFixed Resistor, Wire Wound, 0.25W, 1.26ohm, 300V, 0.05% +/-Tol, Through Hole Mount, AXIAL LEADED; CategoryPassive components The resistor; File Size104KB，7 Pages; ManufacturerOhmite; Websitehttps://www.ohmite.com

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14007-L1R260A Overview

Fixed Resistor, Wire Wound, 0.25W, 1.26ohm, 300V, 0.05% +/-Tol, Through Hole Mount, AXIAL LEADED

14007-L1R260A Parametric

Parameter Name	Attribute value
Objectid	8015043472
package instruction	AXIAL LEADED
Reach Compliance Code	unknown
ECCN code	EAR99
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	145 °C
Package shape	TUBULAR PACKAGE
Rated power dissipation(P)	0.25 W
Rated temperature	125 °C
Guideline	MIL-PRF-39005
resistance	1.26 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
technology	WIRE WOUND
Terminal shape	WIRE
Tolerance	0.05%
Operating Voltage	300 V

14007-L1R260A Preview

REVISIONS

LTR

DESCRIPTION

DATE

APPROVED

Prepared in accordance with

ASME Y14.100

REV STATUS

OF PAGES

PMIC N/A

REV

PAGES

DLA LAND AND MARITIME

COLUMBUS, OH

Original date of

drawing

3 October

2014

CHECKED BY

Andrew R. Ernst

APPROVED BY

Michael Radecki

SIZE

CODE IDENT. NO.

037Z3

DWG NO.

TITLE

PREPARED BY

Andrew R. Ernst

RESISTOR, FIXED, WIREWOUND,

(ACCURATE), 0.25 WATT (RBR54)

14007

PAGE

5905-2014-E33

REV

AMSC N/A

1. SCOPE

1.1 Scope. This drawing describes the requirements for a fixed, wirewound (accurate), 0.25 watt resistor.

1.2 Part or Identifying Number (PIN). The complete PIN is as shown in the following example:

14007-

Drawing number

Terminal

(see

3.3.1)

12601

Resistance

(see

3.3.2)

Tolerance

(see

3.3.3)

Testing requirements

(see

3.3.8)

2. APPLICABLE DOCUMENTS

2.1 Government documents.

2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of

this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in

the solicitation or contract.

DEPARTMENT OF DEFENSE SPECIFICATIONS

- Resistor, Fixed, Wirewound (Accurate), Nonestablished Reliability, and Established Reliability,

General Specification for.

MIL-PRF-39005/3

- Resistor, Fixed, Wirewound (Accurate), Nonestablished Reliability, and Established Reliability,

Style RBR54.

DEPARTMENT OF DEFENSE STANDARDS

MIL-STD-202

- Test Methods for Electronic and Electrical Component Parts.

MIL-STD-690

- Failure Rate Sampling Plans and Procedures.

MIL-STD-790

- Established Reliability and High Reliability Qualified Products List (QPL) Systems for Electrical,

Electronic, and Fiber Optic Parts Specifications.

(Copies of these documents are available online at

http://quicksearch.dla.mil.)

2.2 Order of precedence. Unless otherwise noted herein or in the contract or in the event of a conflict between the text

of this document and the references cited herein (except for related specification sheets), the text of this document takes

precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption

has been obtained.

3. REQUIREMENTS

3.1 Item requirements. The individual item requirements shall be in accordance with

MIL-PRF-39005,

and as specified

herein.

3.2 Interface and physical dimensions. The resistor shall meet the interface and physical dimensions as specified in

MIL-PRF-39005/3

and herein (see

figure 1).

MIL-PRF-39005

DLA LAND AND MARITIME

COLUMBUS, OHIO

SIZE

CODE IDENT NO.

037Z3

REV

DWG NO.

14007

PAGE

Dimension

Inches

0.750 +0.020

-0.032

0.250

±0.015

1.500 min

0.032

±0.002

Millimeters

19.05 +0.51

-0.81

6.35

±0.38

38.10 min

0.81

±0.05

NOTES:

1. Dimensions are in inches.

2. Metric equivalents are in parenthesis.

3. Dimension A is 'clean lead to clean lead’.

4. Resistance measurement points for all values of resistance shall be

.375 ±.0625 (9.53 mm ±1.588 mm) from the end of the body.

FIGURE 1. Style RBR54 resistor.

3.3 Electrical characteristics.

3.3.1 Terminal. The terminal is identified by a single letter in accordance with table I.

TABLE I. Terminal.

Symbol

Terminal

Solderable

Weldable

DLA LAND AND MARITIME

COLUMBUS, OHIO

SIZE

CODE IDENT NO.

037Z3

REV

DWG NO.

14007

PAGE

3.3.2 Resistance. The nominal resistance is expressed in ohms and is identified by five digits; the first four digits

represent significant figures and the last digit specifies the number of zeroes to follow. When the values of resistance are

less than 1,000 ohms, or when fractional values of an ohm are required, the letter "R" is substituted for one of the

significant digits to represent the decimal point. When the letter "R" is used, succeeding digits of the group represent

significant figures. The resistance value designations are in accordance with

MIL-PRF-39005.

Minimum resistance

values are as specified in

3.3.2.1,

and maximum resistance values are as specified in table II. The standard values for

every decade are in accordance with the “10 to 100” decade table of MIL-PRF-39005. The resistance values for 0.01

percent (T), 0.02 percent (Q), 0.05 percent (A) and 0.1 percent (B) resistance tolerances may be of any value, but it is

preferred that the values are chosen within the “10 to 100” decade table of MIL-PRF-39005.

3.3.2.1 Minimum resistance value and applicable tolerance. Minimum resistance value shall be 0.1 ohm for tolerance F

(±1.0 percent). For tolerances B, A, Q, T (±.10,

±.05, ±.02,

and

±.01

percent, respectively), the minimum resistance value

shall be 0.499 ohms.

3.3.2.2 Maximum resistance value. Maximum resistance values and applicable wire sizes shall be in accordance with

table II.

TABLE II. Maximum resistance values.

Nominal wire size

(inches) diameter

.001

.0009

.0008

Absolute

diameter

.0009

.00081

.00072

Maximum resistance

value

(megohms)

.255

.383

.562

3.3.3 Resistance tolerance. Resistors are available in resistance tolerances in accordance with table III.

TABLE III. Resistance and resistance tolerance.

Initial resistance

tolerance

(at 25°C

±2°C)

±0.01 percent

±0.02 percent

±0.05 percent

±0.10percent

±1.00 percent

Symbol

3.3.5 Power rating. The power rating shall be 0.25 watt. Resistors power rating is based on continuous full load

operation at an ambient temperature of +125°C. For temperature in excess of +125°C, the load shall be derated in

accordance with

figure 2.

3.3.6 Voltage rating. The maximum voltage shall be 300 volts direct current or peak.

3.3.7 Maximum weight. The maximum weight shall be 2.5 grams.

DLA LAND AND MARITIME

COLUMBUS, OHIO

SIZE

CODE IDENT NO.

037Z3

REV

DWG NO.

14007

PAGE

3.3.8 Testing requirements. The requirement for testing shall be identified by a single letter in accordance with table IV.

TABLE IV. Testing.

Symbol

(blank)

Testing requirements

Group A

Group A and Group B

FIGURE 2. Derating curve for high ambient temperatures.

3.4 Marking. Resistors shall be marked with the PIN assigned herein (see

1.2)

and manufacturer's identification code

(CAGE or logo), date code, and lot code.

3.5 Pure tin. The use of pure tin, as an underplate or final finish is prohibited both internally and externally. Tin content

of resistor components and solder shall not exceed 97 percent, by mass. Tin shall be alloyed with a minimum of 3

percent lead, by mass (see

6.3).

3.6 Recycling, recovered, environmentally preferable or biobased materials. Recycled, recovered, environmentally

preferable or biobased materials should be used to the maximum extent possible provided that the material meets or

exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs.

3.7 Manufacturer eligibility. To be eligible for listing as an approved source of supply, a manufacturer shall be listed on

the

MIL-PRF-39005

Qualified Products List for at least one part, or perform the group A and group B inspections specified

herein on a sample agreed upon by the manufacturer and DLA Land and Maritime-VAT.

3.7.1 Certificate of compliance. A certificate of compliance shall be required from manufacturers requesting to be an

approved source of supply.

DLA LAND AND MARITIME

COLUMBUS, OHIO

SIZE

CODE IDENT NO.

037Z3

REV

DWG NO.

14007

PAGE

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