UP1/4T22981%R datasheet, PDF - EEWORLD Datasheet

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UP1/4T22981%R: DescriptionFixed Resistor, Metal Film, 0.25W, 298ohm, 350V, 1% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED; CategoryPassive components The resistor; File Size190KB，2 Pages; ManufacturerSEI(Stackpole Electronics Inc.); Websitehttps://www.seielect.com/

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UP1/4T22981%R Overview

Fixed Resistor, Metal Film, 0.25W, 298ohm, 350V, 1% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED

UP1/4T22981%R Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Objectid	1945327333
package instruction	AXIAL LEADED
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	ULTRA PRECISION
Manufacturer's serial number	UP
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	85 °C
Minimum operating temperature	-20 °C
Package shape	TUBULAR PACKAGE
method of packing	TR, PAPER
Rated power dissipation(P)	0.25 W
Rated temperature	70 °C
resistance	298 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
technology	METAL FILM
Temperature Coefficient	50 ppm/°C
Terminal shape	WIRE
Tolerance	1%
Operating Voltage	350 V

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UP Series — Ultra Precision Metal Film Resistors

Features

• Highest stability metal film available

• Higher power options available

• Tolerances to ±0.01% available

• 1W available, contact factory

• Cut and formed product is available on

select sizes; contact factory for details

• TCRs as low as 5 ppm

• Matched sets available

• Low noise

• Non-standard resistance values available

Electrical Specifications

Type / Code

UP 1/4

UP 1/2

Power Rating

(Watts) @ 70°C

0.25W

0.5W

Maximum Working Voltage*

350

Maximum Pulse Voltage

500

* Lesser of

√PR

or maximum working voltage.

Tolerance / TCR Combinations

Electrical (Operating Temperature Range -20°C to +85°C)

TCR

Code

TCR

0.01–0.02%

51.1Ω – 500K

51.1Ω – 294K

0.05%

10Ω – 1M

UP 1/4

0.1–0.25%

10Ω – 499K

10Ω – 4M

5.11Ω – 2M

0.5–1%

1Ω – 4M

1Ω – 2M

1Ω – 3.92M

0.01–0.02%

51.1Ω – 499K

UP 1/2

0.05%

10Ω – 499K

0.1–0.25%

10Ω – 499K

10Ω – 1M

5.11Ω – 1M

5.11Ω – 2M

0.5–1%

10Ω – 499K

1Ω – 1M

1Ω – 2M

1Ω – 3.92M

How to Order

SEI Type

1/4

Code

TCR Code

4.75K

Nominal Resistance

Tolerance

Packaging

Code

1/4

1/2

Code

T2 = 50ppm

T9 = 25ppm

TD = 15ppm

TB = 10ppm

TA = 5ppm

Tolerance

0.01%

0.02%

0.05%

0.1%

0.25%

0.5%

Values

E192

Pkg Qty

5,000

1,000

Description

Paper

Bulk

Code

Toll Free: (888) SEI-SEIS

(888) 734-7347

www.seielect.com

email: marketing@seielect.com

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