515A249K0F datasheet, PDF - EEWORLD Datasheet

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515A249K0F: DescriptionFixed Resistor, Wire Wound, 1.5W, 249000ohm, 1200V, 1% +/-Tol, -10,10ppm/Cel,; CategoryPassive components The resistor; File Size251KB，2 Pages; ManufacturerOhmite; Websitehttps://www.ohmite.com

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515A249K0F Overview

Fixed Resistor, Wire Wound, 1.5W, 249000ohm, 1200V, 1% +/-Tol, -10,10ppm/Cel,

515A249K0F Parametric

Parameter Name	Attribute value
Objectid	848137760
package instruction	Axial,
Reach Compliance Code	unknown
ECCN code	EAR99
YTEOL	6.6
Other features	HIGH PRECISION
structure	Welded
JESD-609 code	e0
Lead diameter	0.813 mm
Lead length	31.75 mm
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	150 °C
Minimum operating temperature	-60 °C
Package diameter	12.7 mm
Package length	38.1 mm
Package shape	TUBULAR PACKAGE
Package form	Axial
Rated power dissipation(P)	1.5 W
Rated temperature	125 °C
resistance	249000 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
technology	WIRE WOUND
Temperature Coefficient	10 ppm/°C
Terminal surface	Tin/Lead (Sn/Pb)
Terminal shape	WIRE
Tolerance	1%
Operating Voltage	1200 V

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HPW Series

F e at u r e S

High Precision Welded Axial and Radial

• High precision

• All welded construction

• Molded thermosetting

plastic bobbin

• Wide ohmic range

combined with tight

tolerance

• Excellent long-term

stability

• Inherent low

temperature coefficient

• Extremely low Thermal

EMF

• Low voltage coefficient

• Low noise

S e r i e S S P e c i F i c at i o n S

cHaracteriSticS

Minimum Values

0.1Ω for ±1% and ±0.5%; 10Ω for ±0.1% and tighter

Resistance

±0.005%, ±0.01%, ± 0.02%, ±0.05%, ±0.1%, ±0.5%,

Tolerance

and ±1%, depending on style and value

*Available in hermetically sealed

Type

118A

102A

101A

153A

103A

105A

184A

185A*

202A

203A

205A*

207A*

308A

210A*

307A

310A

505A

510A*

515A*

517A

520A*

203PA

305PA

Max.

Ohms

192k

334k

410k

435k

633k

820k

961k

968k

1.7 M

1.93 M

3.0 M

4.10 M

5.63 M

7.68 M

10 M

24 M

35 M

43 M

1.48 M

3.3 M

Power Rating

@125°C

(Watts)

0.05

0.10

0.125

0.25

0.33

0.50

0.60

0.50

0.60

1.00

1.25

1.50

1.75

2.00

0.25

0.50

Max.

Volts

150

300

150

300

200

400

800

1200

150

Butt Weld of Tab to

A tab material of 800 ohm alloy (the same as the

Terminal

resistance wire) is butt welded to the terminal and

molded deep into the resistor bobbin. This design

parameter assures the least possible DC transients

due to thermal EMF.

Bobbin Design

The ratio of the height of the Pi wall to the width of

the Pi and to the diameter of the bobbin mandrel are

critical to the basic stability of a wirewound resistor.

These parameters are optimized for each wire size,

wattage size and range of resistor values.

Temperature

±10ppm/°C standard for 10Ω and above. Higher TC’s

Coefficient (TCR

on low ohmic values. TC match to ±1ppm/°C. High

TC’s upto +6000ppm/°C are available

Working tempera-

–60°C to +150°C

ture range

All Welded

The combination of all welded construction and com-

Construction

patible materials provide the most reliable means of

interconnects possible.

Encapsulation

Both the bobbin and the final encapsulation material

Material

are thermosetting alkyd polyester. The resulting resis-

tor is virtually a homogeneous mass with an identical

coefficient of expansion which is unaffected by the

most violent of temperature cycling. All types are

unaffected by application of solvents.

Terminal Materials

The standard terminal material is hot solder dipped

copper (C5N).

(continued)

124

1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com

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